diff --git a/CHANGELOG.md b/CHANGELOG.md index 20c46afb..0fb4b2de 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,113 @@ All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). +## [1.5.0] - 2026-06-05 + +Minor release with one **breaking** config change. rustqual stops shipping a +blunt name-based ignore for `main`/`run`/`visit_*` and instead makes its own +analyzer pass every dimension on its own merits — which required teaching two +analyzers to see code they were structurally blind to (syn-visitor dispatch and +trait-method cohesion). The `ignore_functions` option is removed. Suppression +markers are also held to a higher bar: targeted pins are orphan-checked against +their own finding-kind, and a metric pin parked too far above the value it +covers is reported. + +### Added +- **Structural binary checks are now suppressible by name.** Each structural + check has its own boolean target — `oi`/`sit`/`deh`/`iet` (coupling) and + `btc`/`slm`/`nms` (SRP), the lowercased rule code — so a genuinely-unfixable + finding can be silenced: `// qual:allow(coupling, oi) reason: "orphan rules + force this impl away from the type"`. A targeted marker silences only its own + kind, and marking + orphan-detection share one `structural::target_name_for_code` + mapping. (Before, structural findings could be silenced by *any* targeted + marker of the dimension via a dimension-only `covers()` check — a silent + over-suppression — yet had no way to be named deliberately.) +- **Orphan detection is now target-aware, and reports too-loose metric pins.** + A targeted `// qual:allow(dim, target[=N])` marker is verified against a + finding of *that exact kind* — a `file_length` pin no longer counts a + god-struct finding as a match, so a stale targeted marker surfaces even when + an unrelated finding of the same dimension exists nearby. On top of that, a + metric pin parked more than `pin_headroom` (default **10%**) above the value + it covers is reported as an `ORPHAN_SUPPRESSION` — *"too-loose … tighten to + ~value or remove"* — so a pin can no longer silently absorb regressions up to + a far-away ceiling. A pin that re-fires (below its value) is left untouched, + not flagged. New `[suppression].pin_headroom` knob (default `0.10`). Every + reporter projects the orphan's `kind` (stale vs too-loose) and its targeted + finding-kind: text/SARIF/GitHub/AI/HTML lead with the status word, and the + JSON output gains stable `kind` (`"stale"`/`"too_loose"`) and `target` + (`"file_length=400"`) fields so CI consumers branch on the remedy without + parsing the message. + +### Removed +- **BREAKING: the `ignore_functions` config option is gone.** It excluded + matching functions from *every* dimension — a far broader effect than its + stated purpose (papering over call-graph blindness for trait-dispatched + methods), and the single largest hidden suppression in a project. A + `rustqual.toml` that still sets `ignore_functions` now fails to parse + (`deny_unknown_fields`). **Migration:** delete the key. For the rare function + that genuinely cannot be analyzed, use a targeted `// qual:allow(, )` + (or `// qual:allow(iosp)`), `// qual:api`, `// qual:test_helper`, or + `exclude_files` instead. +- **BREAKING: a bare `// qual:allow()` is rejected for any dimension with + targets** (srp, complexity, dry, coupling, architecture, test_quality). It + would silence *every* finding of that dimension — too blunt — so it must name + a target: `allow(srp, god_struct)`, `allow(complexity, max_cyclomatic=20)`, + `allow(srp, file_length=400)`, … The error lists the valid targets. `iosp` + (no targets) keeps its bare form; multi-dimension blanket markers + (`allow(a, b)`) are gone — use one marker per dimension. **Migration:** add the + target you mean (`rustqual --explain allow` lists them). +- **BREAKING (config): `[srp].file_length_baseline` / `file_length_ceiling` are + replaced by a single `[srp].file_length`** (default `300`, strict `>`). The + old baseline→ceiling score ramp was cosmetic (the SRP score is count-based); + `SRP-002` now simply fires above `file_length`. The matching `[tests]` knob + is likewise a single `file_length`. **Migration:** a `rustqual.toml` setting + the removed keys fails to parse (`deny_unknown_fields`) — replace them with + `file_length`. + +### Changed +- **TQ-003 (untested) now models syn-visitor dispatch as real call-graph + edges.** Previously a visitor's `visit_*` overrides and their helper methods + looked unreachable from tests (the static call graph can't follow syn's + `visit_block → visit_expr` dispatch), and the gap was hidden by seeding every + ignored function as "implicitly tested." That blanket assumption is replaced: + for each visitor type the helper methods its overrides call are recorded, and + at each drive-site (`x.visit_block(..)`, `syn::visit::visit_*(&mut x, ..)`, + `visit_all_files(.., &mut x)`) the driven type is resolved locally and + `driver → helpers` edges are added. Testedness now flows only when a test + actually drives the visitor — an undriven visitor is still flagged. +- **SRP cohesion (LCOM4) is more faithful to the canonical metric.** Two fixes, + both monotonic (they only *merge* components, never create new findings): + - Non-mechanical trait methods (e.g. a `syn::Visit` impl) now *bridge* the + inherent methods they tie together — via their field footprint **and** the + methods they call — without being counted as responsibility nodes. This + stops a struct whose core logic lives in a behavior trait (visitor, walker) + from fragmenting into false god-structs. Mechanical traits + (`Display`/`Debug`/`From`/`Serialize`/`PartialEq`/`Hash`/`Default`/`Clone`/…) + stay excluded so they can't mask genuine god-structs. + - Methods connected by a `self.other()` call are now unioned, matching the + canonical LCOM4 definition (methods cohere when they share a field **or** + call one another). + +### Internal +- `main`, `run`, and all `visit_*` methods are no longer name-ignored; every + function in rustqual is analyzed by its own rules. The fat AST visitors + (`Normalizer`, `BodyVisitor`, and several collectors) were refactored to + per-node category dispatch, and the composition root `run()` was decomposed + into phase operations — so rustqual dogfoods its own complexity, IOSP, and + cohesion rules on its own visitor code. +- The two longest files were split into directory modules by concern + (`shared/normalize/` and `call_parity_rule/calls/`), each well under the SRP + file-length baseline — eliminating their blanket `allow(srp)` markers by real + refactoring rather than a pin. rustqual now carries **zero** production `srp` + suppressions. +- `domain::SuppressionTarget` is now a sum type (`Metric { name, pin } | + Boolean { name }`) so the "metric ⇒ has a pin, boolean ⇒ has none" invariant + is unrepresentable otherwise; `suppresses()` matches the variant directly. + The orphan detector was split into `orphan_suppressions/{mod,positions}.rs` + (decision vs. enumeration), made target-aware per finding-kind, and fixed so + a pin on an inactive SRP component, a module-global coupling pin, or a + magic-number marker is judged correctly rather than mis-reported. + ## [1.4.2] - 2026-06-04 Patch release: a false-positive fix found while applying 1.4.1. SIT stops @@ -140,7 +247,7 @@ never-read `[tests].max_methods` config key. ## [1.4.0] - 2026-06-02 Minor release: **quality checks now run on test code.** DRY (duplicate-function -DRY-001, code-fragment DRY-004, repeated-match DRY-005), function-length +DRY-001, code-fragment DRY-003, repeated-match DRY-005), function-length (LONG_FN), and SRP file-length (SRP_MODULE) previously skipped `#[cfg(test)]`/test files. They now analyze test code too, so duplicated test helpers, copy-pasted arrange/assert blocks, overlong test fns, and oversized @@ -151,9 +258,9 @@ production values. - **BREAKING (config):** the `[duplicates] ignore_tests` field is **removed**. Because `[duplicates]` uses `deny_unknown_fields`, a `rustqual.toml` that still sets `ignore_tests` will now fail to parse — delete the line. There is - no replacement: DRY-001/004/005 always run on tests. `detect_repeated_matches` + no replacement: DRY-001/003/005 always run on tests. `detect_repeated_matches` no longer takes a config argument. -- DRY-003 (wildcard imports) remains test-exempt by its own logic, unchanged. +- DRY-004 (wildcard imports) remains test-exempt by its own logic, unchanged. - **LONG_FN now applies to test functions** at the new `[tests].max_function_lines` threshold (an `Option` defaulting to `[complexity].max_function_lines` = production, 60). Large table-driven tests @@ -274,7 +381,7 @@ Failing-first regression tests in `src/adapters/shared/tests/cfg_test.rs`, `src/` (`src/foo/tests/bar.rs`, a unit-test submodule reached via `#[cfg(test)] mod`). All four DRY file collectors — `FunctionCollector` (duplicate hashing, DRY-001), `FragmentCollector` (repeated fragments, - DRY-004), `MatchPatternCollector` (repeated matches, DRY-005), and + DRY-003), `MatchPatternCollector` (repeated matches, DRY-005), and `WildcardCollector` (wildcard imports) — no longer apply their own `/tests/` path strings; they consult the shared `cfg_test_files` set (integration dirs + `#![cfg(test)]` + `#[cfg(test)] mod` chains), so a diff --git a/Cargo.lock b/Cargo.lock index 39f866a7..b8c6a68e 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -704,7 +704,7 @@ dependencies = [ [[package]] name = "rustqual" -version = "1.4.2" +version = "1.5.0" dependencies = [ "clap", "clap_complete", diff --git a/Cargo.toml b/Cargo.toml index 63a172f7..d567aa73 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "rustqual" -version = "1.4.2" +version = "1.5.0" edition = "2021" description = "Comprehensive Rust code quality analyzer — seven dimensions: IOSP, Complexity, DRY, SRP, Coupling, Test Quality, Architecture" license = "MIT" diff --git a/book/adapter-parity.md b/book/adapter-parity.md index 81344b98..6ce733cc 100644 --- a/book/adapter-parity.md +++ b/book/adapter-parity.md @@ -109,7 +109,7 @@ inherited-default UFCS form. Workarounds are listed inline: both paths, but the call-graph edge ends up under the short `:op` form. Workaround: write the impl at the file-level qualified path (`impl outer::Hidden { … }`) so impl-canonical - and caller-canonical agree, or `qual:allow(architecture)` at the + and caller-canonical agree, or `qual:allow(architecture, call_parity)` at the call-site. 4. **Public function re-exports.** `mod private { pub fn op() {} } @@ -228,7 +228,7 @@ Globs match against the *module path* (with `crate::` stripped), not the layer n For ad-hoc per-function suppression: ```rust -// qual:allow(architecture) — internal capability, intentionally MCP-only +// qual:allow(architecture, call_parity) reason: "internal capability, intentionally MCP-only" pub fn admin_purge() { /* … */ } ``` diff --git a/book/architecture-rules.md b/book/architecture-rules.md index 3cb6460a..563ec035 100644 --- a/book/architecture-rules.md +++ b/book/architecture-rules.md @@ -184,11 +184,11 @@ enabled = true ## Suppression -Architecture is suppression-resistant by design. The `// qual:allow(architecture)` annotation works at the import site or item, but it counts hard against `max_suppression_ratio`, and you should leave a `reason:` rationale in the comment block: +Architecture is suppression-resistant by design. The `// qual:allow(architecture, )` annotation works at the import site or item — name the rule family (`forbidden`, `layer`, `call_parity`, `pattern`, `trait_contract`) — but it counts hard against `max_suppression_ratio`, and a `reason:` is mandatory: ```rust -// qual:allow(architecture) — port adapter must call into the registry directly -// here for serialization round-trip; pure domain accessor would lose ordering. +// qual:allow(architecture, forbidden) reason: "port adapter must call the registry +// directly for serialization round-trip; a pure domain accessor would lose ordering." use crate::adapters::registry::lookup; ``` diff --git a/book/code-reuse.md b/book/code-reuse.md index a44de3ae..e8a69af7 100644 --- a/book/code-reuse.md +++ b/book/code-reuse.md @@ -91,7 +91,7 @@ By default, the dead-code analysis treats a package's `tests/**` files as call-s Replace with explicit imports. If a `prelude::*` is unavoidable (some crates require it), suppress narrowly: ```rust -// qual:allow(dry) — diesel requires this prelude for query DSL +// qual:allow(dry, wildcard_imports) reason: "diesel requires this prelude for query DSL" use diesel::prelude::*; ``` @@ -142,7 +142,7 @@ Most thresholds are tuned to be opinionated by default. Loosen them via `--init` For genuine cases where suppression is right: ```rust -// qual:allow(dry) — keeping this duplicate temporarily; consolidating in PR-345 +// qual:allow(dry, duplicate) reason: "keeping this duplicate temporarily; consolidating in PR-345" fn old_path() { /* … */ } // qual:api — public-API entry, callers outside this crate @@ -155,7 +155,7 @@ pub fn build_test_config() -> Config { /* … */ } fn encode(v: &Value) -> Vec { /* … */ } ``` -`qual:api`, `qual:test_helper`, and `qual:inverse` don't count against `max_suppression_ratio`. `qual:allow(dry)` does. +`qual:api`, `qual:test_helper`, and `qual:inverse` don't count against `max_suppression_ratio`. `qual:allow(dry, …)` does. Full annotation reference: [reference-suppression.md](./reference-suppression.md). diff --git a/book/coupling-quality.md b/book/coupling-quality.md index cf8db755..8f61dc86 100644 --- a/book/coupling-quality.md +++ b/book/coupling-quality.md @@ -73,7 +73,7 @@ check_iet = true **SDP violation**: invert the dependency — typically by introducing a trait in the stable module that the unstable one implements. The stable module then knows nothing about the unstable one. -**Orphaned impl**: move the `impl` block next to the type definition, or — if it's a trait impl that *can't* live there (orphan rules) — accept it and add `// qual:allow(coupling)`. +**Orphaned impl**: move the `impl` block next to the type definition, or — if it's a trait impl that *can't* live there (orphan rules) — accept it and add `// qual:allow(coupling, oi) reason: "orphan rules force this impl away from the type"`. **Single-impl trait**: inline the trait. Most "interface for testability" cases can be replaced by direct dependency injection of the concrete type, or by a trait that has more than one real impl somewhere in the codebase. @@ -83,16 +83,23 @@ check_iet = true ## Suppression -Coupling warnings are *module-level*, not function-level. The `qual:allow(coupling)` annotation on a single function doesn't silence them — that's intentional. To suppress a coupling finding for a whole module: +Coupling **metric** findings (instability, fan-in, fan-out) are *module-level*, not function-level. Suppress one for a whole module with an inner doc-comment that names the metric — a bare `allow(coupling)` is rejected since coupling has targets: ```rust // At the top of the module file: -//! qual:allow(coupling) — orchestration layer, intentionally depends on every adapter. +//! qual:allow(coupling, max_instability=0.95) reason: "orchestration layer, intentionally depends on every adapter." ``` -Inner doc-comment form (`//!`) attaches to the module, not to a single item. +The inner `//!` form attaches to the module, not a single item; the pin re-fires if the metric climbs past it. -For structural-binary checks (`OI`, `SIT`, `DEH`, `IET`) which target specific items, use `// qual:allow(coupling)` at the impl/trait/use site. +The structural-binary checks each have their own boolean target named by the lowercased code — `oi`, `sit`, `deh`, `iet` (and `btc`, `slm`, `nms` on the SRP side). Prefer fixing the smell (move the impl, inline the single-impl trait, replace the downcast), but for the genuinely-unfixable case — an impl forced away by orphan rules, a single-impl trait that is a real API boundary, a `downcast` plugin seam — name it at the item: + +```rust +// qual:allow(coupling, sit) reason: "public extension point; second impl lives downstream" +pub trait Plugin { /* … */ } +``` + +(`SIT` already tolerates `#[cfg(test)]` test doubles, so test mocks don't need a marker.) ## Related diff --git a/book/function-quality.md b/book/function-quality.md index 3e3bd43c..3aa87508 100644 --- a/book/function-quality.md +++ b/book/function-quality.md @@ -137,7 +137,7 @@ For functions you genuinely cannot refactor right now (legacy entry points, gene // qual:allow(iosp) — match-dispatcher; arms intentionally inlined for codegen fn dispatch(cmd: Command) -> Result<()> { /* … */ } -// qual:allow(complexity) — large lookup table; splitting hurts readability +// qual:allow(complexity, max_cyclomatic=20) reason: "large lookup table; splitting hurts readability" fn rule_table() -> &'static [Rule] { /* … */ } // qual:allow(unsafe) — FFI boundary, audited 2026-Q1 diff --git a/book/module-quality.md b/book/module-quality.md index d47b7c8c..53ccaf52 100644 --- a/book/module-quality.md +++ b/book/module-quality.md @@ -16,7 +16,7 @@ rustqual checks this mechanically through SRP — Single Responsibility Principl | Rule | Meaning | Default threshold | |---|---|---| | `SRP-001` | Struct may violate SRP — too many fields/methods or low cohesion (LCOM4 > 2) | composite score, `max_fields = 12`, `max_methods = 20` | -| `SRP-002` | Module file too long | warn at 300 lines, hard at 800 | +| `SRP-002` | Module file too long | fires above 300 production lines | | `SRP-003` | Function has too many parameters | `max_parameters = 5` | `SRP-001` is a composite score: it weighs field count, method count, fan-out, and LCOM4 cohesion together. A struct that's slightly over on fields but cohesive elsewhere doesn't fire; one with disjoint clusters does. @@ -40,10 +40,9 @@ The verbose output names each cluster so the refactor is mechanical: ## Module length -Production-line counting excludes blank lines, single-line `//` comments, and `#[cfg(test)]` blocks. So a 1000-line file with 600 lines of tests counts as ~400 production lines. The thresholds: +Production-line counting excludes blank lines, single-line `//` comments, and `#[cfg(test)]` blocks. So a 1000-line file with 600 lines of tests counts as ~400 production lines. The threshold: -- `file_length_baseline = 300` — soft warn -- `file_length_ceiling = 800` — hard finding +- `file_length = 300` — `SRP-002` fires when production lines exceed it (strict `>`) Tests don't push you over the limit. Comments don't either. The number tracks production code only, which is what actually carries the maintenance cost. @@ -57,8 +56,7 @@ enabled = true # max_fan_out = 10 # max_parameters = 5 # lcom4_threshold = 2 -# file_length_baseline = 300 -# file_length_ceiling = 800 +# file_length = 300 # max_independent_clusters = 2 # min_cluster_statements = 5 # smell_threshold = 0.6 # composite score for SRP-001 @@ -112,8 +110,8 @@ fn render(opts: &RenderOptions) { /* … */ } For modules you genuinely can't split right now (legacy entry points, autogenerated config schemas): ```rust -// qual:allow(srp) — entire module is one well-defined responsibility, -// length comes from a 600-line lookup table that has to live together. +// qual:allow(srp, file_length=650) reason: "one well-defined responsibility; +// length comes from a 600-line lookup table that has to live together." ``` The annotation goes on the first item of the file (the topmost `pub use`, `pub fn`, struct, etc.) and applies to the file-level finding. Counts against `max_suppression_ratio`. @@ -121,7 +119,7 @@ The annotation goes on the first item of the file (the topmost `pub use`, `pub f For struct-level suppression: ```rust -// qual:allow(srp) — public-API struct, fields are stable and intentional +// qual:allow(srp, god_struct) reason: "public-API struct, fields are stable and intentional" pub struct Config { /* 18 fields */ } ``` diff --git a/book/reference-configuration.md b/book/reference-configuration.md index f42008bd..d210df22 100644 --- a/book/reference-configuration.md +++ b/book/reference-configuration.md @@ -12,7 +12,6 @@ Below is the full schema, grouped by section. Every field has a default; a minim | Key | Default | Meaning | |---|---|---| -| `ignore_functions` | `["main", "run", "visit_*"]` | Function names (or `prefix*` patterns) excluded from all dimensions | | `exclude_files` | `[]` | Glob patterns for files to skip entirely | | `strict_closures` | `false` | Treat closures as logic (stricter IOSP) | | `strict_iterator_chains` | `false` | Treat `.map`/`.filter`/`.fold` as logic | @@ -21,11 +20,18 @@ Below is the full schema, grouped by section. Every field has a default; a minim | `max_suppression_ratio` | `0.05` | Cap on `qual:allow` annotations as fraction of functions | ```toml -ignore_functions = ["main", "run", "visit_*"] exclude_files = ["examples/**", "vendor/**"] max_suppression_ratio = 0.05 ``` +> **Removed in 1.5.0:** the `ignore_functions` option no longer exists. It +> excluded matching functions from *every* dimension — too blunt — and a +> `rustqual.toml` that still sets it will fail to parse. To exempt code, use a +> targeted `// qual:allow(, )` with a `reason:` (or bare +> `// qual:allow(iosp)`), `// qual:api`, `// qual:test_helper`, or +> `exclude_files`. (`visit_*` methods no longer need exempting: TQ-003 models +> syn-visitor dispatch directly, and SRP cohesion accounts for trait methods.) + ## `[complexity]` | Key | Default | Meaning | @@ -68,8 +74,7 @@ The full `BP-*` family. Disable if your project deliberately avoids derive macro | `max_fan_out` | `10` | Per-struct fan-out bound | | `max_parameters` | `5` | `SRP-003` threshold | | `lcom4_threshold` | `2` | Number of disjoint clusters before LCOM4 contributes | -| `file_length_baseline` | `300` | Soft warn for `SRP-002` (production lines) | -| `file_length_ceiling` | `800` | Hard finding for `SRP-002` | +| `file_length` | `300` | Production-line limit for `SRP-002` (strict `>`) | | `max_independent_clusters` | `2` | Max disjoint cluster count | | `min_cluster_statements` | `5` | Minimum statements for a cluster to count | @@ -115,15 +120,15 @@ extra_assertion_macros = ["verify", "check_invariant", "expect_that"] ## `[tests]` Per-test-code threshold overrides. rustqual applies a **fixed, curated** -subset of checks to test code — `DRY-001`/`DRY-004`/`DRY-005`, `LONG_FN` +subset of checks to test code — `DRY-001`/`DRY-003`/`DRY-005`, `LONG_FN` (function length), and SRP **file-length** (`SRP_MODULE`). The rest stay test-exempt (`ERROR_HANDLING`, `MAGIC_NUMBER`, IOSP, `DRY-002` dead code, -`DRY-003` wildcard imports, Coupling, all Structural detectors). The SRP +`DRY-004` wildcard imports, Coupling, all Structural detectors). The SRP **module-cohesion** check (independent function clusters) is also **production-only**: a test file's many independent `#[test]` fns are its purpose, not a low-cohesion smell. The **god-struct** check (`SRP-001`) *does* fire on test structs — a god-fixture wiring up many concerns is a real smell — -but at production thresholds, with no separate test knob (use `// qual:allow(srp)` +but at production thresholds, with no separate test knob (use `// qual:allow(srp, god_struct)` for the rare legitimate fixture). Which checks apply is **not** configurable; only the thresholds below are. @@ -135,14 +140,33 @@ by the same limits as production. Field names mirror `[complexity]` and | Key | Inherits | Meaning | |---|---|---| | `max_function_lines` | `[complexity].max_function_lines` | `LONG_FN` limit for test fns | -| `file_length_baseline` | `[srp].file_length_baseline` | File-length score baseline for test files | -| `file_length_ceiling` | `[srp].file_length_ceiling` | File-length score ceiling for test files | +| `file_length` | `[srp].file_length` | `SRP_MODULE` file-length limit for test files | ```toml [tests] -max_function_lines = 120 -file_length_baseline = 500 -file_length_ceiling = 1200 +max_function_lines = 120 +file_length = 500 +``` + +## `[suppression]` + +Quality checks on the suppression markers themselves. Today one key: + +| Key | Default | Meaning | +|---|---|---| +| `pin_headroom` | `0.10` | How far above the value it covers a metric pin may sit before it is flagged a *too-loose* orphan | + +A metric pin `// qual:allow(dim, target=N)` re-fires when the value climbs +above `N`, but a pin parked far *above* the current value silently absorbs +regressions up to its ceiling. With `pin_headroom = 0.10`, a pin is accepted +only while `N ≤ value × 1.10`; beyond that it surfaces as an `ORPHAN_SUPPRESSION` +("too-loose … tighten to ~value or remove"). This is separate from +*target-awareness*: a targeted pin is matched only against findings of its own +kind, so a `file_length` pin no longer counts a god-struct finding as a match. + +```toml +[suppression] +pin_headroom = 0.10 ``` ## `[weights]` @@ -331,7 +355,6 @@ Aggregation strategies: `"loc_weighted"` (default), `"unweighted"`. Most projects converge on a layout like: ```toml -ignore_functions = ["main", "run"] exclude_files = ["examples/**"] max_suppression_ratio = 0.05 diff --git a/book/reference-output-formats.md b/book/reference-output-formats.md index 50e375f3..b032a528 100644 --- a/book/reference-output-formats.md +++ b/book/reference-output-formats.md @@ -99,7 +99,7 @@ GitHub Actions workflow-command annotations. Inline on the PR diff: ``` ::error file=src/order.rs,line=48::IOSP violation: logic=[if (line 50)], calls=[helper (line 53)] ::warning file=src/utils/legacy.rs,line=12::Dead code detected: legacy::unused -::warning file=src/payment.rs,line=88::Stale qual:allow(complexity) marker — no finding in window. +::warning file=src/payment.rs,line=88::Stale qual:allow(complexity, max_cyclomatic=20) marker — no finding in window. ``` The annotation format is `::{level} file=,line=::{message}` — @@ -159,7 +159,7 @@ The HTML report includes: finding tables (IOSP, Complexity, DRY, SRP, Coupling, Test Quality, Architecture). - Per-module coupling table (afferent / efferent / instability). -- Orphan-suppression table when stale `qual:allow` markers exist. +- Orphan-suppression table when stale or too-loose `qual:allow` markers exist (with a Status column). The artifact is fully self-contained — no external CSS, no scripts, no sortable/filterable interactions. Open it in a browser or embed diff --git a/book/reference-suppression.md b/book/reference-suppression.md index f964083e..cf29589f 100644 --- a/book/reference-suppression.md +++ b/book/reference-suppression.md @@ -4,7 +4,8 @@ Annotation forms, ordered from most-restricted to least: | Annotation | Scope | Counts against `max_suppression_ratio` | |---|---|---| -| `// qual:allow()` | One dimension (`iosp`, `complexity`, `dry`, `srp`, `coupling`, `test_quality`, `architecture`) | Yes | +| `// qual:allow(, [=N]) reason: "…"` | One finding-kind within a multi-kind dimension (`complexity`, `dry`, `srp`, `coupling`, `test_quality`, `architecture`) | Yes | +| `// qual:allow(iosp)` | The whole `iosp` dimension (its only form — `iosp` has no targets) | Yes | | `// qual:allow(unsafe)` | `CX-006` only | No | | `// qual:api` | Excludes from `DRY-002`, `TQ-003` | No | | `// qual:test_helper` | Excludes from `DRY-002` (testonly), `TQ-003` | No | @@ -13,30 +14,32 @@ Annotation forms, ordered from most-restricted to least: Each annotation lives in a `//`-comment block immediately above the item it applies to. The block extends upward until a blank line or a non-`//` line breaks it. `#[derive(...)]` and other attributes between the comment block and the item are fine — they don't break the block. -**Removed in 1.2.3:** the bare `// qual:allow` (no parens) and `// qual:allow()` forms no longer suppress anything — they're silently ignored. Authors must spell out the targeted dimension(s) explicitly. Typos like `// qual:allow(srp_params)` (no recognised dimension in the parens) are surfaced as `ORPHAN_SUPPRESSION` findings so they don't quietly hide nothing. +**Removed in 1.2.3:** the bare `// qual:allow` (no parens) and `// qual:allow()` forms no longer suppress anything — they're silently ignored. -## `// qual:allow()` — suppress one dimension +**Breaking in 1.5.0 ("the flip"):** a bare `// qual:allow()` is **rejected** for every dimension that has targets (`complexity`, `dry`, `srp`, `coupling`, `test_quality`, `architecture`) — it would silence *every* finding of that dimension, too blunt. You must name a target; the error lists the valid ones. Only `iosp` (no targets) keeps its bare form. Multi-dimension blanket markers (`allow(a, b)`) are gone — use one marker per dimension. Typos like `// qual:allow(srp_params)` (no recognised dimension) surface as `ORPHAN_SUPPRESSION` so they don't quietly hide nothing. + +## `// qual:allow(, [=N])` — suppress one finding-kind + +Each multi-kind dimension exposes a **vocabulary of targets** (`rustqual --explain allow` lists them all). A *boolean* target takes no value; a *metric* target requires a pinned ceiling `=N` and re-fires once the value climbs above it. Every targeted suppression needs a `reason:`. ```rust -// qual:allow(iosp) — match dispatcher; arms intentionally inlined -fn dispatch(cmd: Command) -> Result<()> { - match cmd { - Command::Sync => sync_handler(), - Command::Diff => diff_handler(), - } -} +// qual:allow(complexity, max_cyclomatic=12) reason: "Kosaraju three-pass is inherently branchy" +fn detect_cycles(g: &Graph) -> Vec { /* … */ } -// qual:allow(complexity) — large lookup table; splitting hurts readability -fn rule_table() -> &'static [Rule] { /* … */ } +// qual:allow(srp, file_length=400) reason: "long but cohesive single normalizer" +mod normalizer { /* … */ } -// qual:allow(architecture) — port adapter must call registry directly here -// for serialization round-trip; pure domain accessor would lose ordering. +// qual:allow(architecture, forbidden) reason: "audited port→registry edge for round-trip ordering" use crate::adapters::registry::lookup; -``` -Always pair with a rationale (`— `). Reviewers and future-you need to know *why* the rule is being bypassed. +// iosp is the one single-kind dimension — bare form only: +// qual:allow(iosp) — match dispatcher; arms intentionally inlined +fn dispatch(cmd: Command) -> Result<()> { + match cmd { Command::Sync => sync_handler(), Command::Diff => diff_handler() } +} +``` -Legacy `// iosp:allow` is an alias for `// qual:allow(iosp)`. +The `reason:` is mandatory for every targeted marker — reviewers and future-you need to know *why*, and a metric pin parked too far above the real value is itself reported (see Orphan detection). Legacy `// iosp:allow` is an alias for `// qual:allow(iosp)`. ## `// qual:allow(unsafe)` — for `CX-006` specifically @@ -72,7 +75,7 @@ pub fn assert_in_range(actual: f64, expected: f64, tol: f64) { Same exclusions as `qual:api` (`DRY-002`, `TQ-003`). Use when a helper lives in `src/` so it's importable from integration tests in `tests/`, but isn't called from any production code. -Differs from `ignore_functions` in `rustqual.toml`: `ignore_functions` silences *every* dimension on a function, while `qual:test_helper` only silences DRY-002 and TQ-003 — complexity / SRP / IOSP all still apply. +Unlike a blanket exclusion, `qual:test_helper` only silences DRY-002 and TQ-003 — complexity / SRP / IOSP all still apply. (rustqual has no function-name ignore list; the blunt `ignore_functions` option was removed in 1.5.0.) ## `// qual:inverse()` — inverse method pairs @@ -102,17 +105,17 @@ Removes self-calls from `own_calls` before the leaf-reclassification pass. Usefu ## Module-level suppression -For *coupling* findings (which are module-global, not function-local), use the inner-doc form: +*Coupling* findings are module-global, not function-local, so a coupling marker applies to the whole module. Use the inner-doc form, and — since coupling has targets — name the metric you mean (a bare `allow(coupling)` is rejected by the flip): ```rust -//! qual:allow(coupling) — orchestration layer, intentionally depends on every adapter. +//! qual:allow(coupling, max_instability=0.95) reason: "orchestration layer, intentionally depends on every adapter." use crate::adapters::a; use crate::adapters::b; // … ``` -The `//!` form attaches to the module, not to a single item. +The `//!` form attaches to the module, not to a single item. The pin re-fires if instability climbs past it. A coupling marker for a **module-global** target — the `max_fan_in`/`max_fan_out`/`max_instability` metrics or the boolean `sdp` check — has no line-anchored finding, so it is *not* orphan- or too-loose-checked (a deliberate blind spot — see Orphan detection). The **structural** coupling targets (`oi`/`sit`/`deh`/`iet`) are line-anchored and *are* orphan-checked like any other target. ## Suppression ratio (`SUP-001`) @@ -128,9 +131,13 @@ Don't silently raise it to make the warning go away. The whole point of the cap ## Orphan detection (`ORPHAN-001`) -A `// qual:allow(...)` marker that *doesn't match a finding in its window* emits `ORPHAN-001`. This catches stale annotations after a refactor — the underlying issue is gone, but the suppression is still there. +A `// qual:allow(...)` marker emits `ORPHAN-001` when it is *stale* — doesn't match a finding in its window — or *too-loose* (a metric pin sitting too far above the value it covers; see below). The stale case catches annotations left behind after a refactor — the underlying issue is gone, but the suppression is still there. + +The detector reads raw complexity metrics against config thresholds, not the `*_warning` flags that suppressions clear. So if you bump a threshold, the finding stops firing, *and* the orphan check then flags the now-redundant suppression. Coupling markers for a module-global target (the `max_fan_in`/`max_fan_out`/`max_instability` metrics or the boolean `sdp` check) are skipped — those warnings are module-global with no line anchor; the structural coupling targets (`oi`/`sit`/`deh`/`iet`) are line-anchored and orphan-checked like any other. + +**Target-aware.** A *targeted* marker is checked against a finding of its **own** kind: a `// qual:allow(srp, file_length=400)` parked next to a god-struct finding (but no module-length finding) is still an orphan — the unrelated finding doesn't satisfy it. A blanket marker (where the dimension allows one, i.e. `iosp`) still matches any finding of its dimension. -The detector reads raw complexity metrics against config thresholds, not the `*_warning` flags that suppressions clear. So if you bump a threshold, the finding stops firing, *and* the orphan check then flags the now-redundant suppression. Coupling-only markers are skipped because coupling warnings are module-global. +**Too-loose pins.** A metric pin that *does* cover its finding but sits too far above the actual value is reported as a too-loose orphan: *"pin N sits >10% above the actual value V — tighten to ~V or remove."* The threshold is `[suppression].pin_headroom` (default `0.10`). This stops a pin parked far above the real metric from silently absorbing regressions up to its ceiling. A pin *below* its value (one that re-fires) is left alone — it is legitimately limiting, not stale. `ORPHAN-001` is visible in every output format and counts toward `total_findings()`, `--fail-on-warnings`, and default-fail. @@ -142,16 +149,16 @@ Files marked as reexport points in `[architecture.reexport_points]` (typically ` | You want… | Use | |---|---| -| To skip one finding in production code temporarily | `// qual:allow()` with rationale | +| To skip one finding-kind in production code | `// qual:allow(, )` with `reason:` (or bare `// qual:allow(iosp)`) | | To mark a function as exposed externally | `// qual:api` | | To mark a `src/` helper used only from `tests/` | `// qual:test_helper` | | To accept structurally-similar inverse pairs | `// qual:inverse()` | | To allow a recursive helper through IOSP | `// qual:recursive` | | To accept FFI / `unsafe` blocks | `// qual:allow(unsafe)` | -| To exempt a whole module from coupling | `//! qual:allow(coupling)` | +| To exempt a module's coupling metric | `//! qual:allow(coupling, max_instability=N)` with `reason:` | ## Related - [reference-rules.md](./reference-rules.md) — every rule code each annotation can suppress -- [reference-configuration.md](./reference-configuration.md) — `max_suppression_ratio`, `ignore_functions`, layer rules +- [reference-configuration.md](./reference-configuration.md) — `max_suppression_ratio`, `exclude_files`, layer rules - [legacy-adoption.md](./legacy-adoption.md) — adoption patterns using suppressions vs baselines diff --git a/book/test-quality.md b/book/test-quality.md index 1da240c1..f5f4c47a 100644 --- a/book/test-quality.md +++ b/book/test-quality.md @@ -35,7 +35,7 @@ A test is anything with `#[test]`, `#[tokio::test]`, etc. rustqual scans the fun If none are present, `TQ-001` fires. The fix is usually to add an assertion; if the test exists for compile-time/typecheck reasons only, mark it: ```rust -// qual:allow(test_quality) — compile-time check only, no runtime assertion needed +// qual:allow(test_quality, no_assertion) reason: "compile-time check only, no runtime assertion needed" #[test] fn signatures_compile() { let _: fn(&str) -> Result = parse; } @@ -63,7 +63,7 @@ pub fn parse_config(input: &str) -> Result { /* … */ } // qual:test_helper — used only from tests/ pub fn build_test_session() -> Session { /* … */ } -// qual:allow(test_quality) — initialised at startup, untestable in isolation +// qual:allow(test_quality, untested) reason: "initialised at startup, untestable in isolation" pub fn install_signal_handlers() { /* … */ } ``` @@ -151,4 +151,4 @@ The agent self-corrects; reviewer time goes to the actual logic, not to spotting - [code-reuse.md](./code-reuse.md) — `DRY-002` (dead code) and `TQ-003` (untested) share the call graph - [ai-coding-workflow.md](./ai-coding-workflow.md) — agent instruction template that includes assertion rules - [reference-rules.md](./reference-rules.md) — every rule code with details -- [reference-suppression.md](./reference-suppression.md) — `qual:api`, `qual:test_helper`, `qual:allow(test_quality)` +- [reference-suppression.md](./reference-suppression.md) — `qual:api`, `qual:test_helper`, `qual:allow(test_quality, …)` diff --git a/examples/architecture/call_parity/README.md b/examples/architecture/call_parity/README.md index 40c325cf..9635caec 100644 --- a/examples/architecture/call_parity/README.md +++ b/examples/architecture/call_parity/README.md @@ -47,9 +47,10 @@ produces exactly two findings: into it, but REST doesn't, so the coverage set `{cli, mcp}` is missing `rest`. -`cmd_debug` carries `// qual:allow(architecture)` so the pipeline -silences its would-be `no_delegation` finding. This is the explicit -escape for intentionally asymmetric features. +`cmd_debug` carries `// qual:allow(architecture, call_parity) reason: "…"` +so the pipeline silences its would-be `no_delegation` finding. This is the +explicit escape for intentionally asymmetric features (a bare +`allow(architecture)` is rejected — the marker must name the rule family). ## Wiring diff --git a/examples/architecture/call_parity/rustqual.toml b/examples/architecture/call_parity/rustqual.toml index a1ab7fde..8f15f15b 100644 --- a/examples/architecture/call_parity/rustqual.toml +++ b/examples/architecture/call_parity/rustqual.toml @@ -10,7 +10,7 @@ # - `architecture/call_parity/missing_adapter` on application::list_items # — called only from CLI and MCP, not REST (because REST went inline). # -# cmd_debug in the CLI adapter carries `// qual:allow(architecture)` +# cmd_debug in the CLI adapter carries `// qual:allow(architecture, call_parity)` # and therefore produces no finding despite having no peer and no # delegation. This is the intentional escape for legitimate asymmetric # features. diff --git a/examples/architecture/call_parity/src/cli/handlers.rs b/examples/architecture/call_parity/src/cli/handlers.rs index e084d733..62cd6d69 100644 --- a/examples/architecture/call_parity/src/cli/handlers.rs +++ b/examples/architecture/call_parity/src/cli/handlers.rs @@ -12,7 +12,7 @@ pub fn cmd_list() { } } -// qual:allow(architecture) — CLI-only diagnostic with no MCP / REST peer. +// qual:allow(architecture, call_parity) reason: "CLI-only diagnostic with no MCP / REST peer" // Documents the legitimate asymmetric feature instead of faking a peer. pub fn cmd_debug() { println!("debug"); diff --git a/rustqual.toml b/rustqual.toml index 18ebf47b..1e847500 100644 --- a/rustqual.toml +++ b/rustqual.toml @@ -3,21 +3,6 @@ # Place this file in your project root. -# Function names (or patterns with trailing *) to exclude from analysis. -# - `main` / `run` — Composition-Root-Dispatcher, IOSP-Ignore -# (Top-Level-Entrypoints mischen zwangsläufig Branching + Delegation). -# - `visit_*` — syn-Visitor-Methoden mit fester extern-Signatur. Sie -# werden von `syn::visit::visit_file` via Trait-Dispatch aufgerufen, -# nicht direkt von Rustcode — daher sieht TQ-003 keinen Call-Pfad -# und `DimensionAnalyzer` keine eigenen Calls. -# `test_*` entfernt: Test-Aware-Analyse (is_test) erledigt die Filterung -# jetzt strukturell; ein Namens-Präfix ist nicht mehr nötig. -ignore_functions = [ - "main", - "run", - "visit_*", -] - # Glob patterns for files to exclude. # `examples/**` hält per-rule Fixture-Crates, die NICHT Teil rustquals sind — # sie werden von den Analyzer-Tests geladen, aber nicht mit-analysiert. @@ -89,12 +74,12 @@ enabled = true # ── Test-Code Thresholds ─────────────────────────────────────────────── # -# rustqual applies a curated subset of checks to test code: DRY-001/004/005, +# rustqual applies a curated subset of checks to test code: DRY-001/003/005, # LONG_FN (function length), and SRP file-length (SRP_MODULE). The god-struct # check (SRP-001) also fires on test structs (a god-fixture is a real smell) at -# production thresholds — no separate test knob; use `// qual:allow(srp)` for the -# rare legitimate fixture. Everything else stays test-exempt (ERROR_HANDLING, -# MAGIC_NUMBER, IOSP, DRY-002 dead code, DRY-003 wildcards, Coupling, all +# production thresholds — no separate test knob; use `// qual:allow(srp, god_struct)` +# for the rare legitimate fixture. Everything else stays test-exempt (ERROR_HANDLING, +# MAGIC_NUMBER, IOSP, DRY-002 dead code, DRY-004 wildcards, Coupling, all # Structural detectors, and the SRP module-cohesion / independent-cluster check). # This split is fixed; only the thresholds are configurable. # @@ -104,9 +89,19 @@ enabled = true # and [srp]. [tests] -# max_function_lines = 60 # overrides [complexity].max_function_lines (LONG_FN) -# file_length_baseline = 300 # overrides [srp].file_length_baseline -# file_length_ceiling = 600 # overrides [srp].file_length_ceiling +# max_function_lines = 60 # overrides [complexity].max_function_lines (LONG_FN) +# file_length = 300 # overrides [srp].file_length (SRP_MODULE) + +# ── Suppression-marker quality ───────────────────────────────────────── +# +# A metric pin `// qual:allow(dim, target=N)` is reported as a *too-loose* +# orphan when N exceeds the actual value it covers by more than pin_headroom +# (a pin parked far above the real metric silently absorbs regressions up to +# its ceiling). Default 0.10 = the pin may sit at most 10% above the value; +# above that, tighten it to ~value or remove it. + +[suppression] +# pin_headroom = 0.10 # ── Quality Score Weights ────────────────────────────────────────────── diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls.rs deleted file mode 100644 index bb891c81..00000000 --- a/src/adapters/analyzers/architecture/call_parity_rule/calls.rs +++ /dev/null @@ -1,1058 +0,0 @@ -//! Canonical call-target collection with receiver-type tracking. -//! -//! Turns a `syn::Block` into a `HashSet` of canonical call -//! targets. Handles: -//! - `crate::` / `self::` / `super::` prefixed calls (resolved via -//! `forbidden_rule::resolve_to_crate_absolute`). -//! - `Self::method(...)` in impl blocks (via `self_type` context). -//! - Alias-resolved unqualified calls (via `gather_alias_map`). -//! - Macro descent (`assert!(foo(x))` records `foo`). -//! - Receiver-type-tracked method calls: `let s = RlmSession::open(); -//! s.search(x);` → `crate::…::RlmSession::search` (not `:search`). -//! -//! Binding-extraction helpers live in [`super::bindings`]; this file -//! owns the visitor, the scope stack, and the target canonicalisation. -//! -//! See `D-3` and `D-4` in the v1.1.0 plan for the resolution order and -//! the binding scan patterns. - -use super::bindings::{ - canonical_from_type, extract_let_binding, normalize_alias_expansion, CanonScope, -}; -use super::local_symbols::{scope_for_local, FileScope}; -use super::type_infer::resolve::{resolve_type, ResolveContext}; -use super::type_infer::self_subst::substitute_bare_self; -use super::type_infer::{ - extract_bindings, extract_for_bindings, infer_type, BindingLookup, CanonicalType, InferContext, - WorkspaceTypeIndex, -}; -use crate::adapters::analyzers::architecture::forbidden_rule::{ - file_to_module_segments, resolve_to_crate_absolute_in, -}; -use crate::adapters::shared::use_tree::AliasTarget; -use std::collections::{HashMap, HashSet}; -use syn::visit::Visit; - -/// Canonical marker for method calls whose receiver-type we can't resolve. -/// Any `:` string is layer-unknown by construction and -/// never counts as a delegation target. -const METHOD_UNKNOWN_PREFIX: &str = ":"; -/// Canonical marker for unqualified / unresolved call paths. All `:…` -/// strings are layer-unknown (external, stdlib, or not aliased). -const BARE_UNKNOWN_PREFIX: &str = ":"; - -/// Input for the canonical-call collector. Per-file lookup tables live -/// in `file`; the rest is per-fn. -pub struct FnContext<'a> { - pub file: &'a FileScope<'a>, - /// Mod-path of the fn declaration inside `file.path`. Empty for - /// top-level fns. - pub mod_stack: &'a [String], - /// Body of the function we analyse. - pub body: &'a syn::Block, - /// Named signature parameters with their declared types. - pub signature_params: Vec<(String, &'a syn::Type)>, - /// Canonical generic-param map: `name → ParamInfo` (canonicalised - /// bounds + turbofish substitution position). Callers MUST build - /// this via `signature_params::item_canonical_generics` or - /// `method_canonical_generics`; constructing it ad-hoc bypasses - /// the canonicaliser AND the position-tagging and leaves - /// `Q::method()` dispatch / turbofish substitution broken. - pub generic_params: HashMap, - /// Type-path of the enclosing `impl` block, if any. - pub self_type: Option>, - /// Workspace type-index for shallow inference fallback. `None` for - /// unit-test fixtures. - pub workspace_index: Option<&'a WorkspaceTypeIndex>, - /// All workspace `FileScope`s. Lets alias expansion switch into - /// the alias's declaring scope. `None` for unit-test fixtures. - pub workspace_files: Option<&'a HashMap>>, - /// Workspace-wide `pub use` re-export map. `Some(&…)` enables the - /// gate's reexport-substitution step at every `canonicalise_workspace_path` - /// invocation inside the body walk. `None` for legacy / unit-test - /// fixtures. - pub reexports: Option<&'a super::reexports::ReexportMap>, -} - -// qual:api -/// Collect the canonical call-target set from a fn body. Entry point for -/// Check A / Check B call-graph construction. -pub fn collect_canonical_calls(ctx: &FnContext<'_>) -> HashSet { - let mut collector = CanonicalCallCollector::new(ctx); - collector.seed_signature_bindings(); - collector.visit_block(ctx.body); - collector.calls -} - -// qual:allow(srp) — LCOM4 here counts visitor methods (touch `calls`) -// separately from scope helpers (touch `bindings`). They're the two -// halves of a single walk; splitting them further fragments the -// visit-order invariants the walker depends on. -struct CanonicalCallCollector<'a> { - file: &'a FileScope<'a>, - /// Mod-path inside `file.path` of the fn under analysis. Read-only - /// for the duration of the body walk. - mod_stack: &'a [String], - /// Full canonical path of the enclosing impl's self-type (with - /// `crate` prefix), if any — used to resolve `Self::method`. - self_type_canonical: Option>, - signature_params: Vec<(String, &'a syn::Type)>, - /// Generic type-param name → canonicalised trait-bound paths. - /// Empty bounds keep the param-name reservation so an unbound - /// `Q::method(...)` doesn't fall through to `crate_root_modules`. - generic_params: HashMap, - /// Scope stack of variable-name → canonical-type-path bindings. - /// Always non-empty while a collection is in flight. - bindings: Vec>>, - /// Parallel scope stack for non-Path bindings (`Result<…>`, - /// `dyn Trait`, etc.). Pushed/popped in lockstep with `bindings`. - non_path_bindings: Vec>, - calls: HashSet, - /// Workspace type-index for shallow inference fallback. `None` - /// for unit-test fixtures. - workspace_index: Option<&'a WorkspaceTypeIndex>, - /// Workspace `FileScope` map for alias decl-site resolution. - workspace_files: Option<&'a HashMap>>, - /// Workspace-wide `pub use` re-export map. Threaded into every - /// `CanonScope` / `ResolveContext` / `InferContext` built during - /// the body walk so the gate substitutes re-exported prefixes. - reexports: Option<&'a super::reexports::ReexportMap>, -} - -impl<'a> CanonicalCallCollector<'a> { - fn new(ctx: &'a FnContext<'a>) -> Self { - let self_type_canonical = ctx.self_type.as_ref().map(|segs| { - // Qualified impl path (`impl crate::foo::Bar { ... }`) — use - // as-is so Self::method canonicalises to `crate::foo::Bar::method`. - if segs.first().map(|s| s.as_str()) == Some("crate") { - return segs.clone(); - } - let mut full = vec!["crate".to_string()]; - full.extend(file_to_module_segments(ctx.file.path)); - full.extend(ctx.mod_stack.iter().cloned()); - full.extend_from_slice(segs); - full - }); - Self { - file: ctx.file, - mod_stack: ctx.mod_stack, - self_type_canonical, - signature_params: ctx.signature_params.clone(), - generic_params: ctx.generic_params.clone(), - bindings: vec![HashMap::new()], - non_path_bindings: vec![HashMap::new()], - calls: HashSet::new(), - workspace_index: ctx.workspace_index, - workspace_files: ctx.workspace_files, - reexports: ctx.reexports, - } - } - - fn seed_signature_bindings(&mut self) { - // `self` is `FnArg::Receiver` and never appears in - // `signature_params`. Seed it explicitly so `self.helper()` and - // `self.field.method()` route through `method_returns` / - // `struct_fields` instead of collapsing to `:…`. - if let Some(self_canonical) = self.self_type_canonical.clone() { - self.bindings[0].insert("self".to_string(), self_canonical); - } - let params = self.signature_params.clone(); - for (name, ty) in ¶ms { - // When workspace_index is available, use the full resolver: - // it handles Stage-3 type-alias expansion, Stage-2 dyn Trait, - // stdlib wrappers, and plain Path in one pass. - if self.workspace_index.is_some() { - self.seed_param_via_resolver(name, ty); - continue; - } - // Legacy fast-path for unit-test fixtures without an index. - if let Some(canonical) = canonical_from_type( - ty, - self.file.alias_map, - self.file.local_symbols, - self.file.crate_root_modules, - self.file.path, - ) { - self.bindings[0].insert(name.clone(), canonical); - } - } - } - - /// Install a signature-param binding using the full `resolve_type` - /// pipeline. Path → legacy scope, wrappers / trait bounds → - /// `non_path_bindings`, `Opaque` dropped. Always seeds frame 0 - /// because signature params live for the whole body walk. - fn seed_param_via_resolver(&mut self, name: &str, ty: &syn::Type) { - match self.resolve_param_type(ty) { - CanonicalType::Path(segs) => { - self.bindings[0].insert(name.to_string(), segs); - } - CanonicalType::Opaque => {} - other => { - self.non_path_bindings[0].insert(name.to_string(), other); - } - } - } - - /// Resolve a parameter / closure-arg type through the full - /// scope-aware pipeline (alias expansion, transparent wrappers, - /// trait-bound extraction, inline-mod resolution). Pre-substitutes - /// bare `Self` with `self_type_canonical` so impl-body declarations - /// like `fn merge(&self, other: Self)` and typed closure params - /// resolve to the enclosing impl type. Used by both signature - /// seeding and closure-param seeding. - fn resolve_param_type(&self, ty: &syn::Type) -> CanonicalType { - let rctx = ResolveContext { - file: self.file, - mod_stack: self.mod_stack, - type_aliases: self.workspace_index.map(|w| &w.type_aliases), - transparent_wrappers: self.workspace_index.map(|w| &w.transparent_wrappers), - workspace_files: self.workspace_files, - alias_param_subs: None, - generic_params: Some(&self.generic_params), - reexports: self.reexports, - }; - match self.self_type_canonical.as_deref() { - Some(impl_segs) => resolve_type(&substitute_bare_self(ty, impl_segs), &rctx), - None => resolve_type(ty, &rctx), - } - } - - fn enter_scope(&mut self) { - self.bindings.push(HashMap::new()); - self.non_path_bindings.push(HashMap::new()); - } - - fn exit_scope(&mut self) { - self.bindings.pop(); - self.non_path_bindings.pop(); - } - - /// Return the innermost binding scope. The stack is seeded non-empty - /// in `new()` and only mutated via paired `enter_scope` / `exit_scope` - /// calls, so `last_mut()` is always `Some`; fall back to index access - /// to avoid panic-helper methods in production code. - fn current_scope_mut(&mut self) -> &mut HashMap> { - if self.bindings.is_empty() { - self.bindings.push(HashMap::new()); - } - let last = self.bindings.len() - 1; - &mut self.bindings[last] - } - - /// Parallel accessor for the non-path scope stack. Same invariants - /// and fallback semantics as `current_scope_mut`. - fn current_non_path_scope_mut(&mut self) -> &mut HashMap { - if self.non_path_bindings.is_empty() { - self.non_path_bindings.push(HashMap::new()); - } - let last = self.non_path_bindings.len() - 1; - &mut self.non_path_bindings[last] - } - - /// Install a binding in the path-scope and evict any stale entry - /// for the same name in the non-path scope (a `let` that shadows a - /// previous wrapper-typed binding with a plain Path binding). - /// Operation. - fn install_path_binding(&mut self, name: String, segs: Vec) { - self.current_non_path_scope_mut().remove(&name); - self.current_scope_mut().insert(name, segs); - } - - /// Install a wrapper / trait-bound binding in the non-path scope - /// and evict any stale Path binding for the same name (shadowing - /// the other way). Operation. - fn install_non_path_binding(&mut self, name: String, ty: CanonicalType) { - self.current_scope_mut().remove(&name); - self.current_non_path_scope_mut().insert(name, ty); - } - - /// Install closure parameter bindings. For `|x: T|` the type goes - /// through the same scope-aware pipeline as signature params. For - /// untyped or destructured patterns, every bound ident gets an - /// `Opaque` tombstone — without this, an outer same-name binding - /// could leak into the closure body and synthesize a stale edge. - fn install_closure_param(&mut self, pat: &syn::Pat) { - if let syn::Pat::Type(pt) = pat { - if let Some(name) = extract_pat_ident_name(pt.pat.as_ref()) { - match self.resolve_param_type(&pt.ty) { - CanonicalType::Path(segs) => self.install_path_binding(name, segs), - other => self.install_non_path_binding(name, other), - } - return; - } - } - let mut idents = Vec::new(); - collect_pattern_idents(pat, &mut idents); - for name in idents { - self.install_non_path_binding(name, CanonicalType::Opaque); - } - } - - /// Resolve `Q::method(...)` where `Q` is a generic type param with - /// trait bound(s) to the trait-method anchor canonicals. Returns - /// `None` when the first segment isn't a known generic param, or - /// when the path is an explicit absolute path (`::Q::method(...)` - /// is the caller's disambiguation away from in-scope generics — - /// gated centrally via `matched_generic_param`), or when the - /// param has bounds we couldn't canonicalise. Multiple bounds ⇒ - /// multiple anchors (over-approximation; matches what - /// `populate_anchor_index` mints). Empty result for a generic - /// without resolvable bounds — the caller short-circuits the call - /// rather than falling into local-symbol / crate-root lookup, - /// which would mis-route `Q` as a type. Operation. - fn canonicalise_generic_param_path( - &self, - segments: &[String], - leading_colon_set: bool, - ) -> Option> { - if segments.len() < 2 { - return None; - } - let info = super::signature_params::matched_generic_param( - segments, - leading_colon_set, - &self.generic_params, - )?; - let method_tail = &segments[1..]; - let canonicals: Vec = info - .bounds - .iter() - .map(|bound| { - let mut full = bound.clone(); - full.extend_from_slice(method_tail); - full.join("::") - }) - .collect(); - Some(canonicals) - } - - /// Turn a path-segment list into the canonical String used for all - /// call-target comparisons in the call-parity check. - /// `leading_colon_set` reflects `syn::Path.leading_colon` — - /// `::Foo::bar()` is Rust 2018+ extern-root syntax that explicitly - /// disambiguates AWAY from workspace symbols, so it short-circuits - /// straight to `:` without consulting the alias / local / - /// crate-root resolvers. Mirrors the same gate - /// `canonicalise_workspace_path` enforces for `Option`-returning - /// type canonicalisation. Integration: each branch delegates to a - /// dedicated helper. - fn canonicalise_path(&self, segments: &[String], leading_colon_set: bool) -> String { - if segments.is_empty() { - return String::new(); - } - // Extern-root path (`::Foo::bar`) — workspace canonicalisation - // does not apply. Without this gate, a same-named workspace - // symbol would produce a false `crate::...::Foo::bar` edge. - if leading_colon_set { - return bare(&segments.join("::")); - } - if segments[0] == "Self" { - return self.canonicalise_self_path(segments); - } - if matches!(segments[0].as_str(), "crate" | "self" | "super") { - return self.canonicalise_keyword_path(segments); - } - if let Some(canonical) = self.canonicalise_alias_path(segments) { - return canonical; - } - if let Some(canonical) = self.canonicalise_local_symbol_path(segments) { - return canonical; - } - // Rust 2018+ absolute call: `app::foo()` without `use` is the - // crate-root `app` module, equivalent to `crate::app::foo()`. - // If `app` is a known workspace root module, prepend `crate::` - // so the canonical matches graph nodes. - if self.file.crate_root_modules.contains(&segments[0]) { - let mut full = vec!["crate".to_string()]; - full.extend_from_slice(segments); - return full.join("::"); - } - // Unknown path (external crate, stdlib, or not imported) → bare. - bare(&segments.join("::")) - } - - /// `Self::method` — substitute the enclosing impl's canonical - /// self-type for `Self`. Falls back to `:` when we're not - /// inside an impl. Operation. - fn canonicalise_self_path(&self, segments: &[String]) -> String { - if let Some(self_canonical) = &self.self_type_canonical { - let mut full = self_canonical.clone(); - full.extend_from_slice(&segments[1..]); - return full.join("::"); - } - bare(&segments.join("::")) - } - - fn canonicalise_keyword_path(&self, segments: &[String]) -> String { - if let Some(resolved) = - resolve_to_crate_absolute_in(self.file.path, self.mod_stack, segments) - { - let mut full = vec!["crate".to_string()]; - full.extend(resolved); - return full.join("::"); - } - bare(&segments.join("::")) - } - - /// First segment hits a `use` alias visible at the current - /// `mod_stack`. The alias path is then re-normalised (it may - /// itself reference `self::`/`super::` or a Rust-2018 crate-root - /// module). Returns `None` when no alias matches. - fn canonicalise_alias_path(&self, segments: &[String]) -> Option { - let alias = self.lookup_alias_at_scope(&segments[0])?; - let mut full = alias.segments.to_vec(); - full.extend_from_slice(&segments[1..]); - let scope = CanonScope { - file: self.file, - mod_stack: self.mod_stack, - reexports: self.reexports, - }; - let normalized = normalize_alias_expansion(full, alias.absolute_root, &scope)?; - Some(normalized.join("::")) - } - - /// Look up `name` in the alias map for exactly the current - /// `mod_stack`. Falls back to the flat top-level `alias_map` for - /// legacy callers that don't populate `aliases_per_scope`. - fn lookup_alias_at_scope(&self, name: &str) -> Option<&AliasTarget> { - if let Some(map) = self.file.aliases_per_scope.get(self.mod_stack) { - return map.get(name); - } - self.file.alias_map.get(name) - } - - /// Same-file fallback: first segment is declared in this file at - /// exactly the current `mod_stack`. Returns `None` when the name - /// isn't in `local_symbols` or its declaration is in a different - /// scope, letting the caller fall through to crate-root resolution. - fn canonicalise_local_symbol_path(&self, segments: &[String]) -> Option { - if !self.file.local_symbols.contains(&segments[0]) { - return None; - } - let mod_path = scope_for_local(self.file.local_decl_scopes, &segments[0], self.mod_stack)?; - let mut full = vec!["crate".to_string()]; - full.extend(file_to_module_segments(self.file.path)); - full.extend(mod_path.iter().cloned()); - full.extend_from_slice(segments); - Some(full.join("::")) - } - - fn record_call(&mut self, target: String) { - self.calls.insert(target); - } - - /// Resolve a method call's receiver to the canonical call-graph - /// targets. Fast-path returns a single element; trait-dispatch - /// inference returns the synthetic anchor `::` so - /// `dyn Trait` calls collapse to one boundary regardless of how - /// many impls exist. Empty vec means unresolved — caller records - /// `:name`. Integration: fast-path first, inference - /// fallback second. - fn resolve_method_targets(&self, receiver: &syn::Expr, method_name: &str) -> Vec { - if let Some(c) = self.try_fast_path_receiver(receiver, method_name) { - return vec![c]; - } - self.try_inferred_targets(receiver, method_name) - } - - /// Fast-path: receiver is a bare ident with a concrete binding in - /// the legacy path scope. Walks both scope stacks from innermost to - /// outermost so a non-path shadow (`let r: Result<_,_> = …` - /// shadowing an outer `let r: Session = …`) aborts the fast-path - /// and hands off to inference, instead of producing a stale concrete - /// edge. Operation. - fn try_fast_path_receiver(&self, receiver: &syn::Expr, method_name: &str) -> Option { - let syn::Expr::Path(p) = receiver else { - return None; - }; - if p.path.segments.len() != 1 { - return None; - } - let ident = p.path.segments[0].ident.to_string(); - for (path_scope, non_path_scope) in self - .bindings - .iter() - .rev() - .zip(self.non_path_bindings.iter().rev()) - { - if non_path_scope.contains_key(&ident) { - return None; - } - if let Some(binding) = path_scope.get(&ident) { - let mut full = binding.clone(); - full.push(method_name.to_string()); - return Some(full.join("::")); - } - } - None - } - - /// Inference fallback: run shallow type inference over the receiver - /// expression, then project the result into one or more canonical - /// call-graph targets. Returns `Vec::new()` when the workspace index - /// isn't present, inference fails, or the inferred type isn't - /// resolvable to a concrete edge. Operation. - fn try_inferred_targets(&self, receiver: &syn::Expr, method_name: &str) -> Vec { - let Some(workspace) = self.workspace_index else { - return Vec::new(); - }; - let Some(inferred) = self.infer_receiver_type(receiver) else { - return Vec::new(); - }; - canonical_edges_for_method(&inferred, method_name, workspace) - } - - /// Run `infer_type` over `receiver` with the current collector - /// state. Returns the raw `CanonicalType` so `try_inferred_targets` - /// can project it to 0/1/N edges. Operation: adapter build + - /// delegate. - fn infer_receiver_type(&self, expr: &syn::Expr) -> Option { - let adapter = CollectorBindings { - scope: &self.bindings, - non_path_scope: &self.non_path_bindings, - }; - let ctx = InferContext { - file: self.file, - mod_stack: self.mod_stack, - workspace: self.workspace_index?, - bindings: &adapter, - self_type: self.self_type_canonical.clone(), - workspace_files: self.workspace_files, - generic_params: Some(&self.generic_params), - reexports: self.reexports, - }; - infer_type(expr, &ctx) - } - - /// `let x: T = …` — route the annotation through the full resolver - /// when a workspace index is available so alias expansion + wrapper - /// peeling + trait-bound extraction all apply. Returns `true` when - /// a binding was installed. Returns `false` only when there's no - /// workspace index, the pattern isn't a typed ident, or the - /// annotation is the explicit `_` inference placeholder — the caller - /// then falls through to initializer-based inference (which is what - /// rustc does). An annotation that names an unresolvable type still - /// installs an `Opaque` tombstone so outer path bindings with the - /// same name don't leak back in. Operation. - fn try_install_annotated_binding(&mut self, local: &syn::Local) -> bool { - let Some(wi) = self.workspace_index else { - return false; - }; - let syn::Pat::Type(pt) = &local.pat else { - return false; - }; - let syn::Pat::Ident(pi) = pt.pat.as_ref() else { - return false; - }; - if matches!(pt.ty.as_ref(), syn::Type::Infer(_)) { - return false; - } - let rctx = ResolveContext { - file: self.file, - mod_stack: self.mod_stack, - type_aliases: Some(&wi.type_aliases), - transparent_wrappers: Some(&wi.transparent_wrappers), - workspace_files: self.workspace_files, - alias_param_subs: None, - generic_params: Some(&self.generic_params), - reexports: self.reexports, - }; - let name = pi.ident.to_string(); - let resolved = match self.self_type_canonical.as_deref() { - Some(impl_segs) => { - resolve_type(&substitute_bare_self(pt.ty.as_ref(), impl_segs), &rctx) - } - None => resolve_type(pt.ty.as_ref(), &rctx), - }; - match resolved { - CanonicalType::Path(segs) => self.install_path_binding(name, segs), - other => self.install_non_path_binding(name, other), - } - true - } - - /// Install a `let x = expr` binding via shallow inference on the - /// initializer. `Path` results go into the legacy scope, non-Path - /// results (wrappers, trait bounds) into `non_path_bindings`, and - /// unresolvable initializers (`let s = external()` where we can't - /// name the return type) into `non_path_bindings` as an `Opaque` - /// tombstone so an outer `s: Session` doesn't leak back in when - /// `s.method()` is resolved. Only simple `Pat::Ident` patterns are - /// handled here; destructuring flows through `install_destructure_bindings`. - /// Operation. - fn install_inferred_let_binding(&mut self, local: &syn::Local) { - let Some(name) = extract_pat_ident_name(&local.pat) else { - return; - }; - let inferred = local - .init - .as_ref() - .and_then(|init| self.infer_receiver_type(&init.expr)) - .unwrap_or(CanonicalType::Opaque); - match inferred { - CanonicalType::Path(segs) => self.install_path_binding(name, segs), - other => self.install_non_path_binding(name, other), - } - } - - fn collect_macro_body(&mut self, mac: &syn::Macro) { - for expr in parse_macro_tokens(mac.tokens.clone()) { - self.visit_expr(&expr); - } - } - - /// Extract pattern bindings from `pat` against a matched-type from - /// `matched_expr`, installing them into the current scope. Path - /// bindings go into the legacy scope, wrapper/trait-bound bindings - /// into `non_path_bindings`. If the matched expression is itself - /// unresolvable, every syntactic binding in the pattern gets an - /// `Opaque` tombstone so outer same-name bindings can't leak back - /// in at a later `.method()` call. Used by `let`-destructuring, - /// `if let`, `while let`, `match` arms. Integration. - fn install_destructure_bindings(&mut self, pat: &syn::Pat, matched_expr: &syn::Expr) { - let matched = self - .infer_receiver_type(matched_expr) - .unwrap_or(CanonicalType::Opaque); - let pairs = self.extract_pattern_pairs(pat, &matched, PatKind::Value); - self.install_binding_pairs_with_tombstones(pat, pairs); - } - - /// Extract for-loop element-type bindings from `pat` against - /// `iter_expr` (the thing being iterated over). Unresolvable - /// iterators tombstone their pattern idents, same as - /// `install_destructure_bindings`. Integration. - fn install_for_bindings(&mut self, pat: &syn::Pat, iter_expr: &syn::Expr) { - let iter_type = self - .infer_receiver_type(iter_expr) - .unwrap_or(CanonicalType::Opaque); - let pairs = self.extract_pattern_pairs(pat, &iter_type, PatKind::Iterator); - self.install_binding_pairs_with_tombstones(pat, pairs); - } - - /// Wrapper around `patterns::extract_bindings` / `extract_for_bindings` - /// that builds a fresh `InferContext`. Operation. - fn extract_pattern_pairs( - &self, - pat: &syn::Pat, - matched: &CanonicalType, - kind: PatKind, - ) -> Vec<(String, CanonicalType)> { - let Some(workspace) = self.workspace_index else { - return Vec::new(); - }; - let adapter = CollectorBindings { - scope: &self.bindings, - non_path_scope: &self.non_path_bindings, - }; - let ictx = InferContext { - file: self.file, - mod_stack: self.mod_stack, - workspace, - bindings: &adapter, - self_type: self.self_type_canonical.clone(), - workspace_files: self.workspace_files, - generic_params: Some(&self.generic_params), - reexports: self.reexports, - }; - match kind { - PatKind::Value => extract_bindings(pat, matched, &ictx), - PatKind::Iterator => extract_for_bindings(pat, matched, &ictx), - } - } - - /// Dispatch each `(name, type)` pair into the right scope map, then - /// walk `pat` and install `Opaque` tombstones for every syntactic - /// ident the resolver didn't reach. This keeps an unresolvable - /// `let (_, s) = external()` or `for s in opaque_iter` from letting - /// an outer `s: Session` leak back in at `s.method()` time. - /// Operation. - fn install_binding_pairs_with_tombstones( - &mut self, - pat: &syn::Pat, - pairs: Vec<(String, CanonicalType)>, - ) { - let mut resolved: HashSet = HashSet::new(); - for (name, ty) in pairs { - resolved.insert(name.clone()); - match ty { - CanonicalType::Path(segs) => self.install_path_binding(name, segs), - other => self.install_non_path_binding(name, other), - } - } - let mut idents = Vec::new(); - collect_pattern_idents(pat, &mut idents); - for name in idents { - if !resolved.contains(&name) { - self.install_non_path_binding(name, CanonicalType::Opaque); - } - } - } -} - -/// Whether `extract_pattern_pairs` should use value-pattern -/// (`let` / `if let` / `match`) or for-loop element-type extraction. -enum PatKind { - Value, - Iterator, -} - -/// Best-effort extraction of expressions from a macro token stream. -/// Most macros accept comma-separated exprs (`assert!(a, b)`, -/// `format!("{}", x)`), but block-like bodies (`tokio::select! { ... }`) -/// and separator-`;` variants (`vec![x; n]`) don't. We try three -/// strategies in order: -/// 1. Comma-separated `syn::Expr` list (covers ~90% of macro calls). -/// 2. Brace-wrapped parse as a `syn::Block` — extracts every statement -/// expression, covering block-bodied and `;`-separated forms. -/// 3. Single `syn::Expr` — for macros whose argument is one expression. -/// -/// Still silent-skips on total parse failure (extern-DSL macros, custom -/// grammar) — a documented limitation of syntax-level call-graph -/// construction. -pub(super) fn parse_macro_tokens(tokens: proc_macro2::TokenStream) -> Vec { - use syn::parse::Parser; - use syn::punctuated::Punctuated; - use syn::Token; - let parser = Punctuated::::parse_terminated; - if let Ok(exprs) = parser.parse2(tokens.clone()) { - return exprs.into_iter().collect(); - } - let braced = quote::quote! { { #tokens } }; - if let Ok(block) = syn::parse2::(braced) { - return block - .stmts - .into_iter() - .filter_map(|stmt| match stmt { - syn::Stmt::Expr(e, _) => Some(e), - syn::Stmt::Local(l) => l.init.map(|init| *init.expr), - _ => None, - }) - .collect(); - } - if let Ok(expr) = syn::parse2::(tokens) { - return vec![expr]; - } - Vec::new() -} - -/// Project an inferred receiver type to the canonical call-graph -/// edge(s) for a method call. `Path` yields one concrete edge. -/// `TraitBound` (Stage 2) yields one synthetic anchor edge -/// `::` provided the method is declared on the trait — -/// the touchpoint walker decides target-boundary status via -/// `is_anchor_target_capability` (target-declared callable body OR -/// overriding impl in target), so call-parity stays sound for -/// Ports&Adapters architectures without fanning out N per-impl edges -/// (which would otherwise turn one boundary call into N -/// false-positive Check C touchpoints). Wrapper variants -/// (`Result`/`Option`/…) yield no direct edge — the combinator table -/// already unwrapped them in the method-return lookup. -/// Operation: variant dispatch. -fn canonical_edges_for_method( - ty: &CanonicalType, - method: &str, - workspace: &WorkspaceTypeIndex, -) -> Vec { - // Both TraitBound (impl/dyn Trait) and GenericParamBound - // (`fn f() -> Q`) dispatch identically through the trait - // anchor — only their turbofish-overridability differs. Use - // `as_trait_bounds()` so both variants route together. - if let Some(bounds) = ty.as_trait_bounds() { - return bounds - .iter() - .flat_map(|trait_segs| trait_dispatch_edges(trait_segs, method, workspace)) - .collect(); - } - match ty { - CanonicalType::Path(segs) => { - let mut full = segs.clone(); - full.push(method.to_string()); - vec![full.join("::")] - } - _ => Vec::new(), - } -} - -/// Emit a single synthetic trait-method anchor `::` for -/// `dyn Trait.method()` dispatch. The anchor represents the logical -/// capability; concrete impls are NOT fanned out as separate edges -/// here — fanout would build N-element touchpoint sets that fire -/// Check C false-positives for a single boundary call. The anchor is -/// intentionally treated as a leaf in the call graph (no -/// anchor → impl edges are added) — calls inside default bodies and -/// overriding impl bodies are out of scope; documented as a known -/// limitation in `book/adapter-parity.md`. Filters on -/// `trait_has_method` so `dyn Trait.unrelated_method()` still falls -/// through to `:name`. Operation: index lookup. -fn trait_dispatch_edges( - trait_segs: &[String], - method: &str, - workspace: &WorkspaceTypeIndex, -) -> Vec { - let trait_canonical = trait_segs.join("::"); - if !workspace.trait_has_method(&trait_canonical, method) { - return Vec::new(); - } - vec![format!("{trait_canonical}::{method}")] -} - -/// Adapter that exposes the collector's `Vec>>` -/// scope stack as a `BindingLookup` for the inference engine. Bindings -/// in the old scope are always concrete type paths, so we wrap each as -/// `CanonicalType::Path(segs)`. Stdlib-wrapper bindings (`Option`, -/// `Result`) are never stored in the old scope — they're either -/// unwrapped via `?` before `let` binds them, or simply not populated -/// by the legacy `extract_let_binding`. -struct CollectorBindings<'a> { - scope: &'a [HashMap>], - non_path_scope: &'a [HashMap], -} - -impl BindingLookup for CollectorBindings<'_> { - fn lookup(&self, ident: &str) -> Option { - // Walk both stacks in lockstep from innermost to outermost so - // shadowing works across kinds (a wrapper-typed `let` hides an - // outer path-typed `let` with the same name and vice versa). - // Install helpers evict the sibling entry at the same level, so - // at most one map hits per frame. - for (path_frame, non_path_frame) in self - .scope - .iter() - .rev() - .zip(self.non_path_scope.iter().rev()) - { - if let Some(ty) = non_path_frame.get(ident) { - return Some(ty.clone()); - } - if let Some(segs) = path_frame.get(ident) { - return Some(CanonicalType::Path(segs.clone())); - } - } - None - } -} - -/// Peel `Pat::Type` wrappers to reach a `Pat::Ident` and return its -/// identifier. Returns `None` for destructuring / tuple / struct -/// patterns — those flow through `patterns::extract_bindings`. -/// Operation: recursive pattern peel. -// qual:recursive -pub(super) fn extract_pat_ident_name(pat: &syn::Pat) -> Option { - match pat { - syn::Pat::Ident(pi) => Some(pi.ident.to_string()), - syn::Pat::Type(pt) => extract_pat_ident_name(&pt.pat), - _ => None, - } -} - -/// Collect every binding ident introduced by `pat` (ignoring subpatterns -/// that don't bind names — `_`, literals, ref subslices without idents). -/// Used to install `Opaque` tombstones for syntactic bindings whose -/// matched type couldn't be inferred. Integration: dispatch over pat -/// variants, each arm delegates to a recursive helper. -// qual:recursive -pub(super) fn collect_pattern_idents(pat: &syn::Pat, out: &mut Vec) { - match pat { - syn::Pat::Ident(pi) => push_pat_ident(pi, out), - syn::Pat::Type(pt) => collect_pattern_idents(&pt.pat, out), - syn::Pat::Reference(r) => collect_pattern_idents(&r.pat, out), - syn::Pat::Paren(p) => collect_pattern_idents(&p.pat, out), - syn::Pat::Tuple(t) => walk_each(t.elems.iter(), out), - syn::Pat::TupleStruct(ts) => walk_each(ts.elems.iter(), out), - syn::Pat::Struct(s) => walk_each(s.fields.iter().map(|f| f.pat.as_ref()), out), - syn::Pat::Slice(s) => walk_each(s.elems.iter(), out), - syn::Pat::Or(o) => walk_each(o.cases.iter().take(1), out), - _ => {} - } -} - -/// Recurse into every pattern in `iter`. Operation: closure-free fn -/// keeps lifetime inference simple when called from the main walker. -fn walk_each<'p, I: Iterator>(iter: I, out: &mut Vec) { - for p in iter { - collect_pattern_idents(p, out); - } -} - -/// Push a `Pat::Ident`'s name and recurse into its optional subpattern -/// (`x @ Some(inner)`). Operation: closure-hidden recursion. -fn push_pat_ident(pi: &syn::PatIdent, out: &mut Vec) { - out.push(pi.ident.to_string()); - if let Some((_, sub)) = &pi.subpat { - collect_pattern_idents(sub, out); - } -} - -/// Prefix an unresolved single-ident or segment path with the layer-unknown -/// `:` marker. Centralised so the BP-010 format-repetition detector -/// sees exactly one format string, and so the marker can evolve together. -fn bare(path: &str) -> String { - format!("{BARE_UNKNOWN_PREFIX}{path}") -} - -/// Prefix a method identifier with the layer-unknown `:` marker. -fn method_unknown(method: &str) -> String { - format!("{METHOD_UNKNOWN_PREFIX}{method}") -} - -// The Visit impl uses an independent `'ast` lifetime so the same -// collector can walk both the main fn body (long-lived) and macro -// bodies we parse on-the-fly (locally-owned, short-lived). The struct's -// `'a` carries state references (alias_map etc.); it never constrains -// the AST lifetime. -impl<'a, 'ast> Visit<'ast> for CanonicalCallCollector<'a> { - fn visit_block(&mut self, block: &'ast syn::Block) { - self.enter_scope(); - syn::visit::visit_block(self, block); - self.exit_scope(); - } - - fn visit_local(&mut self, local: &'ast syn::Local) { - // Walk the initializer first so calls in the RHS are recorded - // before the binding is installed. Rust shadowing semantics - // reference the outer binding in the RHS. - if let Some(init) = &local.init { - self.visit_expr(&init.expr); - if let Some((_, else_expr)) = &init.diverge { - self.visit_expr(else_expr); - } - } - if self.try_install_annotated_binding(local) { - return; - } - // The legacy `extract_let_binding` shortcut isn't mod-scope aware - // — it would install `let s = inner::Session::new()` as - // `crate::file::Session` while the index keys it under - // `crate::file::inner::Session`. Skip it when a workspace index - // is available so inference (which is scope-aware) takes over. - if self.workspace_index.is_none() { - if let Some((name, ty_canonical)) = extract_let_binding( - local, - self.file.alias_map, - self.file.local_symbols, - self.file.crate_root_modules, - self.file.path, - ) { - self.install_path_binding(name, ty_canonical); - return; - } - } - if extract_pat_ident_name(&local.pat).is_some() { - self.install_inferred_let_binding(local); - return; - } - // Destructuring: `let Some(x) = opt`, `let Ctx { field } = …`, - // `let (a, b) = …`, `let Pat = expr else { return; }`. Install - // all pattern-extracted bindings into the current scope. - if let Some(init) = local.init.as_ref() { - self.install_destructure_bindings(&local.pat, &init.expr); - } - } - - fn visit_expr_if(&mut self, expr_if: &'ast syn::ExprIf) { - self.enter_scope(); - // `if let PAT = SCRUTINEE { THEN }` — extract bindings visible - // in the then-block only. Non-let conditions are visited via - // the default walker and don't introduce bindings. - if let syn::Expr::Let(let_expr) = expr_if.cond.as_ref() { - self.visit_expr(&let_expr.expr); - self.install_destructure_bindings(&let_expr.pat, &let_expr.expr); - } else { - self.visit_expr(&expr_if.cond); - } - self.visit_block(&expr_if.then_branch); - self.exit_scope(); - if let Some((_, else_branch)) = &expr_if.else_branch { - self.visit_expr(else_branch); - } - } - - fn visit_expr_while(&mut self, expr_while: &'ast syn::ExprWhile) { - self.enter_scope(); - if let syn::Expr::Let(let_expr) = expr_while.cond.as_ref() { - self.visit_expr(&let_expr.expr); - self.install_destructure_bindings(&let_expr.pat, &let_expr.expr); - } else { - self.visit_expr(&expr_while.cond); - } - self.visit_block(&expr_while.body); - self.exit_scope(); - } - - fn visit_expr_match(&mut self, expr_match: &'ast syn::ExprMatch) { - self.visit_expr(&expr_match.expr); - for arm in &expr_match.arms { - self.enter_scope(); - self.install_destructure_bindings(&arm.pat, &expr_match.expr); - if let Some((_, guard)) = &arm.guard { - self.visit_expr(guard); - } - self.visit_expr(&arm.body); - self.exit_scope(); - } - } - - fn visit_expr_for_loop(&mut self, for_loop: &'ast syn::ExprForLoop) { - self.visit_expr(&for_loop.expr); - self.enter_scope(); - self.install_for_bindings(&for_loop.pat, &for_loop.expr); - self.visit_block(&for_loop.body); - self.exit_scope(); - } - - fn visit_expr_call(&mut self, call: &'ast syn::ExprCall) { - // Walk func + args first so nested calls / macros are recorded. - self.visit_expr(&call.func); - for arg in &call.args { - self.visit_expr(arg); - } - if let syn::Expr::Path(p) = call.func.as_ref() { - let segments: Vec = p - .path - .segments - .iter() - .map(|s| s.ident.to_string()) - .collect(); - let leading_colon = p.path.leading_colon.is_some(); - if let Some(targets) = self.canonicalise_generic_param_path(&segments, leading_colon) { - for t in targets { - self.record_call(t); - } - } else { - let canonical = self.canonicalise_path(&segments, leading_colon); - self.record_call(canonical); - } - } - } - - fn visit_expr_method_call(&mut self, call: &'ast syn::ExprMethodCall) { - // Walk receiver + args so nested resolution / method chains record. - self.visit_expr(&call.receiver); - for arg in &call.args { - self.visit_expr(arg); - } - let method_name = call.method.to_string(); - let targets = self.resolve_method_targets(&call.receiver, &method_name); - if targets.is_empty() { - self.record_call(method_unknown(&method_name)); - } else { - for t in targets { - self.record_call(t); - } - } - } - - fn visit_macro(&mut self, mac: &'ast syn::Macro) { - self.collect_macro_body(mac); - } - - fn visit_expr_closure(&mut self, c: &'ast syn::ExprClosure) { - self.enter_scope(); - for input in &c.inputs { - self.install_closure_param(input); - } - self.visit_expr(&c.body); - self.exit_scope(); - } -} diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls/canon.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls/canon.rs new file mode 100644 index 00000000..5fcee4a4 --- /dev/null +++ b/src/adapters/analyzers/architecture/call_parity_rule/calls/canon.rs @@ -0,0 +1,169 @@ +//! Path canonicalisation for call targets. + +use super::super::bindings::{ + canonical_from_type, extract_let_binding, normalize_alias_expansion, CanonScope, +}; +use super::super::local_symbols::{scope_for_local, FileScope}; +use super::super::type_infer::resolve::{resolve_type, ResolveContext}; +use super::super::type_infer::self_subst::substitute_bare_self; +use super::super::type_infer::{ + extract_bindings, extract_for_bindings, infer_type, BindingLookup, CanonicalType, InferContext, + WorkspaceTypeIndex, +}; +use super::{ + bare, collect_pattern_idents, extract_pat_ident_name, method_unknown, parse_macro_tokens, + CanonicalCallCollector, CollectorBindings, FnContext, +}; +use crate::adapters::analyzers::architecture::forbidden_rule::{ + file_to_module_segments, resolve_to_crate_absolute_in, +}; +use crate::adapters::shared::use_tree::AliasTarget; +use std::collections::{HashMap, HashSet}; +use syn::spanned::Spanned; + +impl<'a> CanonicalCallCollector<'a> { + /// Resolve `Q::method(...)` where `Q` is a generic type param with + /// trait bound(s) to the trait-method anchor canonicals. Returns + /// `None` when the first segment isn't a known generic param, or + /// when the path is an explicit absolute path (`::Q::method(...)` + /// is the caller's disambiguation away from in-scope generics — + /// gated centrally via `matched_generic_param`), or when the + /// param has bounds we couldn't canonicalise. Multiple bounds => + /// multiple anchors (over-approximation). Operation. + pub(super) fn canonicalise_generic_param_path( + &self, + segments: &[String], + leading_colon_set: bool, + ) -> Option> { + if segments.len() < 2 { + return None; + } + let info = super::super::signature_params::matched_generic_param( + segments, + leading_colon_set, + &self.generic_params, + )?; + let method_tail = &segments[1..]; + let canonicals: Vec = info + .bounds + .iter() + .map(|bound| { + let mut full = bound.clone(); + full.extend_from_slice(method_tail); + full.join("::") + }) + .collect(); + Some(canonicals) + } + + /// Turn a path-segment list into the canonical String used for all + /// call-target comparisons in the call-parity check. + /// `leading_colon_set` reflects `syn::Path.leading_colon` — + /// `::Foo::bar()` is Rust 2018+ extern-root syntax that explicitly + /// disambiguates AWAY from workspace symbols, so it short-circuits + /// straight to `:` without consulting the alias / local / + /// crate-root resolvers. Mirrors the same gate + /// `canonicalise_workspace_path` enforces for `Option`-returning + /// type canonicalisation. Integration: each branch delegates to a + /// dedicated helper. + pub(super) fn canonicalise_path(&self, segments: &[String], leading_colon_set: bool) -> String { + if segments.is_empty() { + return String::new(); + } + // Extern-root path (`::Foo::bar`) — workspace canonicalisation + // does not apply. Without this gate, a same-named workspace + // symbol would produce a false `crate::...::Foo::bar` edge. + if leading_colon_set { + return bare(&segments.join("::")); + } + if segments[0] == "Self" { + return self.canonicalise_self_path(segments); + } + if matches!(segments[0].as_str(), "crate" | "self" | "super") { + return self.canonicalise_keyword_path(segments); + } + if let Some(canonical) = self.canonicalise_alias_path(segments) { + return canonical; + } + if let Some(canonical) = self.canonicalise_local_symbol_path(segments) { + return canonical; + } + // Rust 2018+ absolute call: `app::foo()` without `use` is the + // crate-root `app` module, equivalent to `crate::app::foo()`. + // If `app` is a known workspace root module, prepend `crate::` + // so the canonical matches graph nodes. + if self.file.crate_root_modules.contains(&segments[0]) { + let mut full = vec!["crate".to_string()]; + full.extend_from_slice(segments); + return full.join("::"); + } + // Unknown path (external crate, stdlib, or not imported) → bare. + bare(&segments.join("::")) + } + + /// `Self::method` — substitute the enclosing impl's canonical + /// self-type for `Self`. Falls back to `:` when we're not + /// inside an impl. Operation. + pub(super) fn canonicalise_self_path(&self, segments: &[String]) -> String { + if let Some(self_canonical) = &self.self_type_canonical { + let mut full = self_canonical.clone(); + full.extend_from_slice(&segments[1..]); + return full.join("::"); + } + bare(&segments.join("::")) + } + + pub(super) fn canonicalise_keyword_path(&self, segments: &[String]) -> String { + if let Some(resolved) = + resolve_to_crate_absolute_in(self.file.path, self.mod_stack, segments) + { + let mut full = vec!["crate".to_string()]; + full.extend(resolved); + return full.join("::"); + } + bare(&segments.join("::")) + } + + /// First segment hits a `use` alias visible at the current + /// `mod_stack`. The alias path is then re-normalised (it may + /// itself reference `self::`/`super::super::` or a Rust-2018 crate-root + /// module). Returns `None` when no alias matches. + pub(super) fn canonicalise_alias_path(&self, segments: &[String]) -> Option { + let alias = self.lookup_alias_at_scope(&segments[0])?; + let mut full = alias.segments.to_vec(); + full.extend_from_slice(&segments[1..]); + let scope = CanonScope { + file: self.file, + mod_stack: self.mod_stack, + reexports: self.reexports, + }; + let normalized = normalize_alias_expansion(full, alias.absolute_root, &scope)?; + Some(normalized.join("::")) + } + + /// Look up `name` in the alias map for exactly the current + /// `mod_stack`. Falls back to the flat top-level `alias_map` for + /// legacy callers that don't populate `aliases_per_scope`. + pub(super) fn lookup_alias_at_scope(&self, name: &str) -> Option<&AliasTarget> { + if let Some(map) = self.file.aliases_per_scope.get(self.mod_stack) { + return map.get(name); + } + self.file.alias_map.get(name) + } + + /// Same-file fallback: first segment is declared in this file at + /// exactly the current `mod_stack`. Returns `None` when the name + /// isn't in `local_symbols` or its declaration is in a different + /// scope, letting the caller fall through to crate-root resolution. + pub(super) fn canonicalise_local_symbol_path(&self, segments: &[String]) -> Option { + if !self.file.local_symbols.contains(&segments[0]) { + return None; + } + let mod_path = scope_for_local(self.file.local_decl_scopes, &segments[0], self.mod_stack)?; + let mut full = vec!["crate".to_string()]; + full.extend(file_to_module_segments(self.file.path)); + full.extend(mod_path.iter().cloned()); + full.extend_from_slice(segments); + Some(full.join("::")) + } +} diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls/install.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls/install.rs new file mode 100644 index 00000000..0d93522e --- /dev/null +++ b/src/adapters/analyzers/architecture/call_parity_rule/calls/install.rs @@ -0,0 +1,189 @@ +//! let/for/destructure binding installation. + +use super::super::bindings::{ + canonical_from_type, extract_let_binding, normalize_alias_expansion, CanonScope, +}; +use super::super::local_symbols::{scope_for_local, FileScope}; +use super::super::type_infer::resolve::{resolve_type, ResolveContext}; +use super::super::type_infer::self_subst::substitute_bare_self; +use super::super::type_infer::{ + extract_bindings, extract_for_bindings, infer_type, BindingLookup, CanonicalType, InferContext, + WorkspaceTypeIndex, +}; +use super::{ + bare, collect_pattern_idents, extract_pat_ident_name, method_unknown, parse_macro_tokens, + CanonicalCallCollector, CollectorBindings, FnContext, +}; +use crate::adapters::analyzers::architecture::forbidden_rule::{ + file_to_module_segments, resolve_to_crate_absolute_in, +}; +use crate::adapters::shared::use_tree::AliasTarget; +use std::collections::{HashMap, HashSet}; +use syn::spanned::Spanned; + +impl<'a> CanonicalCallCollector<'a> { + /// `let x: T = …` — route the annotation through the full resolver + /// when a workspace index is available so alias expansion + wrapper + /// peeling + trait-bound extraction all apply. Returns `true` when + /// a binding was installed. `false` when there's no workspace index, + /// the pattern isn't a typed ident, or the annotation is `_`. An + /// unresolvable type still installs an `Opaque` tombstone. Operation. + pub(super) fn try_install_annotated_binding(&mut self, local: &syn::Local) -> bool { + let Some(wi) = self.workspace_index else { + return false; + }; + let syn::Pat::Type(pt) = &local.pat else { + return false; + }; + let syn::Pat::Ident(pi) = pt.pat.as_ref() else { + return false; + }; + if matches!(pt.ty.as_ref(), syn::Type::Infer(_)) { + return false; + } + let rctx = ResolveContext { + file: self.file, + mod_stack: self.mod_stack, + type_aliases: Some(&wi.type_aliases), + transparent_wrappers: Some(&wi.transparent_wrappers), + workspace_files: self.workspace_files, + alias_param_subs: None, + generic_params: Some(&self.generic_params), + reexports: self.reexports, + }; + let name = pi.ident.to_string(); + let resolved = match self.self_type_canonical.as_deref() { + Some(impl_segs) => { + resolve_type(&substitute_bare_self(pt.ty.as_ref(), impl_segs), &rctx) + } + None => resolve_type(pt.ty.as_ref(), &rctx), + }; + match resolved { + CanonicalType::Path(segs) => self.install_path_binding(name, segs), + other => self.install_non_path_binding(name, other), + } + true + } + + /// Install a `let x = expr` binding via shallow inference on the + /// initializer. `Path` results go into the legacy scope, non-Path + /// results (wrappers, trait bounds) into `non_path_bindings`, and + /// unresolvable initializers (`let s = external()` where we can't + /// name the return type) into `non_path_bindings` as an `Opaque` + /// tombstone so an outer `s: Session` doesn't leak back in when + /// `s.method()` is resolved. Only simple `Pat::Ident` patterns are + /// handled here; destructuring flows through `install_destructure_bindings`. + /// Operation. + pub(super) fn install_inferred_let_binding(&mut self, local: &syn::Local) { + let Some(name) = extract_pat_ident_name(&local.pat) else { + return; + }; + let inferred = local + .init + .as_ref() + .and_then(|init| self.infer_receiver_type(&init.expr)) + .unwrap_or(CanonicalType::Opaque); + match inferred { + CanonicalType::Path(segs) => self.install_path_binding(name, segs), + other => self.install_non_path_binding(name, other), + } + } + + /// Extract pattern bindings from `pat` against a matched-type from + /// `matched_expr`, installing them into the current scope. Path + /// bindings go into the legacy scope, wrapper/trait-bound bindings + /// into `non_path_bindings`. If the matched expression is itself + /// unresolvable, every syntactic binding in the pattern gets an + /// `Opaque` tombstone so outer same-name bindings can't leak back + /// in at a later `.method()` call. Used by `let`-destructuring, + /// `if let`, `while let`, `match` arms. Integration. + pub(super) fn install_destructure_bindings( + &mut self, + pat: &syn::Pat, + matched_expr: &syn::Expr, + ) { + let matched = self + .infer_receiver_type(matched_expr) + .unwrap_or(CanonicalType::Opaque); + let pairs = self.extract_pattern_pairs(pat, &matched, PatKind::Value); + self.install_binding_pairs_with_tombstones(pat, pairs); + } + + /// Extract for-loop element-type bindings from `pat` against + /// `iter_expr` (the thing being iterated over). Unresolvable + /// iterators tombstone their pattern idents, same as + /// `install_destructure_bindings`. Integration. + pub(super) fn install_for_bindings(&mut self, pat: &syn::Pat, iter_expr: &syn::Expr) { + let iter_type = self + .infer_receiver_type(iter_expr) + .unwrap_or(CanonicalType::Opaque); + let pairs = self.extract_pattern_pairs(pat, &iter_type, PatKind::Iterator); + self.install_binding_pairs_with_tombstones(pat, pairs); + } + + /// Wrapper around `patterns::extract_bindings` / `extract_for_bindings` + /// that builds a fresh `InferContext`. Operation. + pub(super) fn extract_pattern_pairs( + &self, + pat: &syn::Pat, + matched: &CanonicalType, + kind: PatKind, + ) -> Vec<(String, CanonicalType)> { + let Some(workspace) = self.workspace_index else { + return Vec::new(); + }; + let adapter = CollectorBindings { + scope: &self.bindings, + non_path_scope: &self.non_path_bindings, + }; + let ictx = InferContext { + file: self.file, + mod_stack: self.mod_stack, + workspace, + bindings: &adapter, + self_type: self.self_type_canonical.clone(), + workspace_files: self.workspace_files, + generic_params: Some(&self.generic_params), + reexports: self.reexports, + }; + match kind { + PatKind::Value => extract_bindings(pat, matched, &ictx), + PatKind::Iterator => extract_for_bindings(pat, matched, &ictx), + } + } + + /// Dispatch each `(name, type)` pair into the right scope map, then + /// walk `pat` and install `Opaque` tombstones for every syntactic + /// ident the resolver didn't reach. This keeps an unresolvable + /// `let (_, s) = external()` or `for s in opaque_iter` from letting + /// an outer `s: Session` leak back in at `s.method()` time. + /// Operation. + pub(super) fn install_binding_pairs_with_tombstones( + &mut self, + pat: &syn::Pat, + pairs: Vec<(String, CanonicalType)>, + ) { + let mut resolved: HashSet = HashSet::new(); + for (name, ty) in pairs { + resolved.insert(name.clone()); + match ty { + CanonicalType::Path(segs) => self.install_path_binding(name, segs), + other => self.install_non_path_binding(name, other), + } + } + let mut idents = Vec::new(); + collect_pattern_idents(pat, &mut idents); + for name in idents { + if !resolved.contains(&name) { + self.install_non_path_binding(name, CanonicalType::Opaque); + } + } + } +} + +/// Whether `extract_pattern_pairs` should use value-pattern +/// (`let` / `if let` / `match`) or for-loop element-type extraction. +pub(super) enum PatKind { + Value, + Iterator, +} diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls/mod.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls/mod.rs new file mode 100644 index 00000000..018e6eeb --- /dev/null +++ b/src/adapters/analyzers/architecture/call_parity_rule/calls/mod.rs @@ -0,0 +1,271 @@ +//! Canonical call-target collection with receiver-type tracking. +//! +//! Turns a `syn::Block` into a `HashSet` of canonical call +//! targets. Handles: +//! - `crate::` / `self::` / `super::` prefixed calls (resolved via +//! `forbidden_rule::resolve_to_crate_absolute`). +//! - `Self::method(...)` in impl blocks (via `self_type` context). +//! - Alias-resolved unqualified calls (via `gather_alias_map`). +//! - Macro descent (`assert!(foo(x))` records `foo`). +//! - Receiver-type-tracked method calls: `let s = RlmSession::open(); +//! s.search(x);` → `crate::…::RlmSession::search` (not `:search`). +//! +//! Binding-extraction helpers live in [`super::bindings`]; this file +//! owns the visitor, the scope stack, and the target canonicalisation. +//! +//! See `D-3` and `D-4` in the v1.1.0 plan for the resolution order and +//! the binding scan patterns. + +use super::bindings::{ + canonical_from_type, extract_let_binding, normalize_alias_expansion, CanonScope, +}; +use super::local_symbols::{scope_for_local, FileScope}; +use super::type_infer::resolve::{resolve_type, ResolveContext}; +use super::type_infer::self_subst::substitute_bare_self; +use super::type_infer::{ + extract_bindings, extract_for_bindings, infer_type, BindingLookup, CanonicalType, InferContext, + WorkspaceTypeIndex, +}; +use crate::adapters::analyzers::architecture::forbidden_rule::{ + file_to_module_segments, resolve_to_crate_absolute_in, +}; +use crate::adapters::shared::use_tree::AliasTarget; +use std::collections::{HashMap, HashSet}; +use syn::visit::Visit; + +/// Canonical marker for method calls whose receiver-type we can't resolve. +/// Any `:` string is layer-unknown by construction and +/// never counts as a delegation target. +const METHOD_UNKNOWN_PREFIX: &str = ":"; +/// Canonical marker for unqualified / unresolved call paths. All `:…` +/// strings are layer-unknown (external, stdlib, or not aliased). +const BARE_UNKNOWN_PREFIX: &str = ":"; + +/// Input for the canonical-call collector. Per-file lookup tables live +/// in `file`; the rest is per-fn. +pub struct FnContext<'a> { + pub file: &'a FileScope<'a>, + /// Mod-path of the fn declaration inside `file.path`. Empty for + /// top-level fns. + pub mod_stack: &'a [String], + /// Body of the function we analyse. + pub body: &'a syn::Block, + /// Named signature parameters with their declared types. + pub signature_params: Vec<(String, &'a syn::Type)>, + /// Canonical generic-param map: `name → ParamInfo` (canonicalised + /// bounds + turbofish substitution position). Callers MUST build + /// this via `signature_params::item_canonical_generics` or + /// `method_canonical_generics`; constructing it ad-hoc bypasses + /// the canonicaliser AND the position-tagging and leaves + /// `Q::method()` dispatch / turbofish substitution broken. + pub generic_params: HashMap, + /// Type-path of the enclosing `impl` block, if any. + pub self_type: Option>, + /// Workspace type-index for shallow inference fallback. `None` for + /// unit-test fixtures. + pub workspace_index: Option<&'a WorkspaceTypeIndex>, + /// All workspace `FileScope`s. Lets alias expansion switch into + /// the alias's declaring scope. `None` for unit-test fixtures. + pub workspace_files: Option<&'a HashMap>>, + /// Workspace-wide `pub use` re-export map. `Some(&…)` enables the + /// gate's reexport-substitution step at every `canonicalise_workspace_path` + /// invocation inside the body walk. `None` for legacy / unit-test + /// fixtures. + pub reexports: Option<&'a super::reexports::ReexportMap>, +} + +// qual:api +/// Collect the canonical call-target set from a fn body. Entry point for +/// Check A / Check B call-graph construction. +pub fn collect_canonical_calls(ctx: &FnContext<'_>) -> HashSet { + let mut collector = CanonicalCallCollector::new(ctx); + collector.seed_signature_bindings(); + collector.visit_block(ctx.body); + collector.calls +} + +struct CanonicalCallCollector<'a> { + file: &'a FileScope<'a>, + /// Mod-path inside `file.path` of the fn under analysis. Read-only + /// for the duration of the body walk. + mod_stack: &'a [String], + /// Full canonical path of the enclosing impl's self-type (with + /// `crate` prefix), if any — used to resolve `Self::method`. + self_type_canonical: Option>, + signature_params: Vec<(String, &'a syn::Type)>, + /// Generic type-param name → canonicalised trait-bound paths. + /// Empty bounds keep the param-name reservation so an unbound + /// `Q::method(...)` doesn't fall through to `crate_root_modules`. + generic_params: HashMap, + /// Scope stack of variable-name → canonical-type-path bindings. + /// Always non-empty while a collection is in flight. + bindings: Vec>>, + /// Parallel scope stack for non-Path bindings (`Result<…>`, + /// `dyn Trait`, etc.). Pushed/popped in lockstep with `bindings`. + non_path_bindings: Vec>, + calls: HashSet, + /// Workspace type-index for shallow inference fallback. `None` + /// for unit-test fixtures. + workspace_index: Option<&'a WorkspaceTypeIndex>, + /// Workspace `FileScope` map for alias decl-site resolution. + workspace_files: Option<&'a HashMap>>, + /// Workspace-wide `pub use` re-export map. Threaded into every + /// `CanonScope` / `ResolveContext` / `InferContext` built during + /// the body walk so the gate substitutes re-exported prefixes. + reexports: Option<&'a super::reexports::ReexportMap>, +} + +mod canon; +mod install; +mod resolve; +mod scope; +mod visit; + +/// Best-effort extraction of expressions from a macro token stream. +/// Most macros accept comma-separated exprs (`assert!(a, b)`, +/// `format!("{}", x)`), but block-like bodies (`tokio::select! { ... }`) +/// and separator-`;` variants (`vec![x; n]`) don't. We try three +/// strategies in order: +/// 1. Comma-separated `syn::Expr` list (covers ~90% of macro calls). +/// 2. Brace-wrapped parse as a `syn::Block` — extracts every statement +/// expression, covering block-bodied and `;`-separated forms. +/// 3. Single `syn::Expr` — for macros whose argument is one expression. +/// +/// Still silent-skips on total parse failure (extern-DSL macros, custom +/// grammar) — a documented limitation of syntax-level call-graph +/// construction. +pub(super) fn parse_macro_tokens(tokens: proc_macro2::TokenStream) -> Vec { + use syn::parse::Parser; + use syn::punctuated::Punctuated; + use syn::Token; + let parser = Punctuated::::parse_terminated; + if let Ok(exprs) = parser.parse2(tokens.clone()) { + return exprs.into_iter().collect(); + } + let braced = quote::quote! { { #tokens } }; + if let Ok(block) = syn::parse2::(braced) { + return block + .stmts + .into_iter() + .filter_map(|stmt| match stmt { + syn::Stmt::Expr(e, _) => Some(e), + syn::Stmt::Local(l) => l.init.map(|init| *init.expr), + _ => None, + }) + .collect(); + } + if let Ok(expr) = syn::parse2::(tokens) { + return vec![expr]; + } + Vec::new() +} + +/// Project an inferred receiver type to the canonical call-graph +/// edge(s) for a method call. `Path` yields one concrete edge. +/// `TraitBound` (Stage 2) yields one synthetic anchor edge +/// `::` provided the method is declared on the trait — +/// the touchpoint walker decides target-boundary status via +/// `is_anchor_target_capability` (target-declared callable body OR +/// overriding impl in target), so call-parity stays sound for +/// Ports&Adapters architectures without fanning out N per-impl edges +/// (which would otherwise turn one boundary call into N +/// false-positive Check C touchpoints). Wrapper variants +/// (`Result`/`Option`/…) yield no direct edge — the combinator table +/// already unwrapped them in the method-return lookup. +/// Adapter exposing the collector's scope stack as a `BindingLookup`. +struct CollectorBindings<'a> { + scope: &'a [HashMap>], + non_path_scope: &'a [HashMap], +} + +impl BindingLookup for CollectorBindings<'_> { + fn lookup(&self, ident: &str) -> Option { + // Walk both stacks in lockstep from innermost to outermost so + // shadowing works across kinds (a wrapper-typed `let` hides an + // outer path-typed `let` with the same name and vice versa). + // Install helpers evict the sibling entry at the same level, so + // at most one map hits per frame. + for (path_frame, non_path_frame) in self + .scope + .iter() + .rev() + .zip(self.non_path_scope.iter().rev()) + { + if let Some(ty) = non_path_frame.get(ident) { + return Some(ty.clone()); + } + if let Some(segs) = path_frame.get(ident) { + return Some(CanonicalType::Path(segs.clone())); + } + } + None + } +} + +/// Peel `Pat::Type` wrappers to reach a `Pat::Ident` and return its +/// identifier. Returns `None` for destructuring / tuple / struct +/// patterns — those flow through `patterns::extract_bindings`. +/// Operation: recursive pattern peel. +// qual:recursive +pub(super) fn extract_pat_ident_name(pat: &syn::Pat) -> Option { + match pat { + syn::Pat::Ident(pi) => Some(pi.ident.to_string()), + syn::Pat::Type(pt) => extract_pat_ident_name(&pt.pat), + _ => None, + } +} + +/// Collect every binding ident introduced by `pat` (ignoring subpatterns +/// that don't bind names — `_`, literals, ref subslices without idents). +/// Used to install `Opaque` tombstones for syntactic bindings whose +/// matched type couldn't be inferred. Integration: dispatch over pat +/// variants, each arm delegates to a recursive helper. +// qual:recursive +pub(super) fn collect_pattern_idents(pat: &syn::Pat, out: &mut Vec) { + match pat { + syn::Pat::Ident(pi) => push_pat_ident(pi, out), + syn::Pat::Type(pt) => collect_pattern_idents(&pt.pat, out), + syn::Pat::Reference(r) => collect_pattern_idents(&r.pat, out), + syn::Pat::Paren(p) => collect_pattern_idents(&p.pat, out), + syn::Pat::Tuple(t) => walk_each(t.elems.iter(), out), + syn::Pat::TupleStruct(ts) => walk_each(ts.elems.iter(), out), + syn::Pat::Struct(s) => walk_each(s.fields.iter().map(|f| f.pat.as_ref()), out), + syn::Pat::Slice(s) => walk_each(s.elems.iter(), out), + syn::Pat::Or(o) => walk_each(o.cases.iter().take(1), out), + _ => {} + } +} + +/// Recurse into every pattern in `iter`. Operation: closure-free fn +/// keeps lifetime inference simple when called from the main walker. +fn walk_each<'p, I: Iterator>(iter: I, out: &mut Vec) { + for p in iter { + collect_pattern_idents(p, out); + } +} + +/// Push a `Pat::Ident`'s name and recurse into its optional subpattern +/// (`x @ Some(inner)`). Operation: closure-hidden recursion. +fn push_pat_ident(pi: &syn::PatIdent, out: &mut Vec) { + out.push(pi.ident.to_string()); + if let Some((_, sub)) = &pi.subpat { + collect_pattern_idents(sub, out); + } +} + +/// Prefix an unresolved single-ident or segment path with the layer-unknown +/// `:` marker. Centralised so the BP-010 format-repetition detector +/// sees exactly one format string, and so the marker can evolve together. +fn bare(path: &str) -> String { + format!("{BARE_UNKNOWN_PREFIX}{path}") +} + +/// Prefix a method identifier with the layer-unknown `:` marker. +fn method_unknown(method: &str) -> String { + format!("{METHOD_UNKNOWN_PREFIX}{method}") +} + +// The Visit impl uses an independent `'ast` lifetime so the same +// collector can walk both the main fn body (long-lived) and macro +// bodies we parse on-the-fly (locally-owned, short-lived). The struct's +// `'a` carries state references (alias_map etc.); it never constrains diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls/resolve.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls/resolve.rs new file mode 100644 index 00000000..aacc292d --- /dev/null +++ b/src/adapters/analyzers/architecture/call_parity_rule/calls/resolve.rs @@ -0,0 +1,171 @@ +//! Method-call target resolution + trait/edge projection. + +use super::super::bindings::{ + canonical_from_type, extract_let_binding, normalize_alias_expansion, CanonScope, +}; +use super::super::local_symbols::{scope_for_local, FileScope}; +use super::super::type_infer::resolve::{resolve_type, ResolveContext}; +use super::super::type_infer::self_subst::substitute_bare_self; +use super::super::type_infer::{ + extract_bindings, extract_for_bindings, infer_type, BindingLookup, CanonicalType, InferContext, + WorkspaceTypeIndex, +}; +use super::{ + bare, collect_pattern_idents, extract_pat_ident_name, method_unknown, parse_macro_tokens, + CanonicalCallCollector, CollectorBindings, FnContext, +}; +use crate::adapters::analyzers::architecture::forbidden_rule::{ + file_to_module_segments, resolve_to_crate_absolute_in, +}; +use crate::adapters::shared::use_tree::AliasTarget; +use std::collections::{HashMap, HashSet}; +use syn::spanned::Spanned; + +impl<'a> CanonicalCallCollector<'a> { + pub(super) fn record_call(&mut self, target: String) { + self.calls.insert(target); + } + + /// Resolve a method call's receiver to the canonical call-graph + /// targets. Fast-path returns a single element; trait-dispatch + /// inference returns the synthetic anchor `::` so + /// `dyn Trait` calls collapse to one boundary regardless of how + /// many impls exist. Empty vec means unresolved — caller records + /// `:name`. Integration: fast-path first, inference + /// fallback second. + pub(super) fn resolve_method_targets( + &self, + receiver: &syn::Expr, + method_name: &str, + ) -> Vec { + if let Some(c) = self.try_fast_path_receiver(receiver, method_name) { + return vec![c]; + } + self.try_inferred_targets(receiver, method_name) + } + + /// Fast-path: receiver is a bare ident with a concrete binding in + /// the legacy path scope. Walks both scope stacks from innermost to + /// outermost so a non-path shadow (`let r: Result<_,_> = …` + /// shadowing an outer `let r: Session = …`) aborts the fast-path + /// and hands off to inference, instead of producing a stale concrete + /// edge. Operation. + pub(super) fn try_fast_path_receiver( + &self, + receiver: &syn::Expr, + method_name: &str, + ) -> Option { + let syn::Expr::Path(p) = receiver else { + return None; + }; + if p.path.segments.len() != 1 { + return None; + } + let ident = p.path.segments[0].ident.to_string(); + for (path_scope, non_path_scope) in self + .bindings + .iter() + .rev() + .zip(self.non_path_bindings.iter().rev()) + { + if non_path_scope.contains_key(&ident) { + return None; + } + if let Some(binding) = path_scope.get(&ident) { + let mut full = binding.clone(); + full.push(method_name.to_string()); + return Some(full.join("::")); + } + } + None + } + + /// Inference fallback: run shallow type inference over the receiver + /// expression, then project the result into one or more canonical + /// call-graph targets. Returns `Vec::new()` when the workspace index + /// isn't present, inference fails, or the inferred type isn't + /// resolvable to a concrete edge. Operation. + pub(super) fn try_inferred_targets( + &self, + receiver: &syn::Expr, + method_name: &str, + ) -> Vec { + let Some(workspace) = self.workspace_index else { + return Vec::new(); + }; + let Some(inferred) = self.infer_receiver_type(receiver) else { + return Vec::new(); + }; + canonical_edges_for_method(&inferred, method_name, workspace) + } + + /// Run `infer_type` over `receiver` with the current collector + /// state. Returns the raw `CanonicalType` so `try_inferred_targets` + /// can project it to 0/1/N edges. Operation: adapter build + + /// delegate. + pub(super) fn infer_receiver_type(&self, expr: &syn::Expr) -> Option { + let adapter = CollectorBindings { + scope: &self.bindings, + non_path_scope: &self.non_path_bindings, + }; + let ctx = InferContext { + file: self.file, + mod_stack: self.mod_stack, + workspace: self.workspace_index?, + bindings: &adapter, + self_type: self.self_type_canonical.clone(), + workspace_files: self.workspace_files, + generic_params: Some(&self.generic_params), + reexports: self.reexports, + }; + infer_type(expr, &ctx) + } +} + +pub(super) fn canonical_edges_for_method( + ty: &CanonicalType, + method: &str, + workspace: &WorkspaceTypeIndex, +) -> Vec { + // Both TraitBound (impl/dyn Trait) and GenericParamBound + // (`fn f() -> Q`) dispatch identically through the trait + // anchor — only their turbofish-overridability differs. Use + // `as_trait_bounds()` so both variants route together. + if let Some(bounds) = ty.as_trait_bounds() { + return bounds + .iter() + .flat_map(|trait_segs| trait_dispatch_edges(trait_segs, method, workspace)) + .collect(); + } + match ty { + CanonicalType::Path(segs) => { + let mut full = segs.clone(); + full.push(method.to_string()); + vec![full.join("::")] + } + _ => Vec::new(), + } +} + +/// Emit a single synthetic trait-method anchor `::` for +/// `dyn Trait.method()` dispatch. The anchor represents the logical +/// capability; concrete impls are NOT fanned out as separate edges +/// here — fanout would build N-element touchpoint sets that fire +/// Check C false-positives for a single boundary call. The anchor is +/// intentionally treated as a leaf in the call graph (no +/// anchor → impl edges are added) — calls inside default bodies and +/// overriding impl bodies are out of scope; documented as a known +/// limitation in `book/adapter-parity.md`. Filters on +/// `trait_has_method` so `dyn Trait.unrelated_method()` still falls +/// through to `:name`. Operation: index lookup. +pub(super) fn trait_dispatch_edges( + trait_segs: &[String], + method: &str, + workspace: &WorkspaceTypeIndex, +) -> Vec { + let trait_canonical = trait_segs.join("::"); + if !workspace.trait_has_method(&trait_canonical, method) { + return Vec::new(); + } + vec![format!("{trait_canonical}::{method}")] +} diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls/scope.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls/scope.rs new file mode 100644 index 00000000..00662686 --- /dev/null +++ b/src/adapters/analyzers/architecture/call_parity_rule/calls/scope.rs @@ -0,0 +1,193 @@ +//! Scope-stack management + signature/closure binding seeding. + +use super::super::bindings::{ + canonical_from_type, extract_let_binding, normalize_alias_expansion, CanonScope, +}; +use super::super::local_symbols::{scope_for_local, FileScope}; +use super::super::type_infer::resolve::{resolve_type, ResolveContext}; +use super::super::type_infer::self_subst::substitute_bare_self; +use super::super::type_infer::{ + extract_bindings, extract_for_bindings, infer_type, BindingLookup, CanonicalType, InferContext, + WorkspaceTypeIndex, +}; +use super::{ + bare, collect_pattern_idents, extract_pat_ident_name, method_unknown, parse_macro_tokens, + CanonicalCallCollector, CollectorBindings, FnContext, +}; +use crate::adapters::analyzers::architecture::forbidden_rule::{ + file_to_module_segments, resolve_to_crate_absolute_in, +}; +use crate::adapters::shared::use_tree::AliasTarget; +use std::collections::{HashMap, HashSet}; +use syn::spanned::Spanned; + +impl<'a> CanonicalCallCollector<'a> { + pub(super) fn new(ctx: &'a FnContext<'a>) -> Self { + let self_type_canonical = ctx.self_type.as_ref().map(|segs| { + // Qualified impl path (`impl crate::foo::Bar { ... }`) — use + // as-is so Self::method canonicalises to `crate::foo::Bar::method`. + if segs.first().map(|s| s.as_str()) == Some("crate") { + return segs.clone(); + } + let mut full = vec!["crate".to_string()]; + full.extend(file_to_module_segments(ctx.file.path)); + full.extend(ctx.mod_stack.iter().cloned()); + full.extend_from_slice(segs); + full + }); + Self { + file: ctx.file, + mod_stack: ctx.mod_stack, + self_type_canonical, + signature_params: ctx.signature_params.clone(), + generic_params: ctx.generic_params.clone(), + bindings: vec![HashMap::new()], + non_path_bindings: vec![HashMap::new()], + calls: HashSet::new(), + workspace_index: ctx.workspace_index, + workspace_files: ctx.workspace_files, + reexports: ctx.reexports, + } + } + + pub(super) fn seed_signature_bindings(&mut self) { + // `self` is `FnArg::Receiver` and never appears in + // `signature_params`. Seed it explicitly so `self.helper()` and + // `self.field.method()` route through `method_returns` / + // `struct_fields` instead of collapsing to `:…`. + if let Some(self_canonical) = self.self_type_canonical.clone() { + self.bindings[0].insert("self".to_string(), self_canonical); + } + let params = self.signature_params.clone(); + for (name, ty) in ¶ms { + // When workspace_index is available, use the full resolver: + // it handles Stage-3 type-alias expansion, Stage-2 dyn Trait, + // stdlib wrappers, and plain Path in one pass. + if self.workspace_index.is_some() { + self.seed_param_via_resolver(name, ty); + continue; + } + // Legacy fast-path for unit-test fixtures without an index. + if let Some(canonical) = canonical_from_type( + ty, + self.file.alias_map, + self.file.local_symbols, + self.file.crate_root_modules, + self.file.path, + ) { + self.bindings[0].insert(name.clone(), canonical); + } + } + } + + /// Install a signature-param binding using the full `resolve_type` + /// pipeline. Path → legacy scope, wrappers / trait bounds → + /// `non_path_bindings`, `Opaque` dropped. Always seeds frame 0 + /// because signature params live for the whole body walk. + pub(super) fn seed_param_via_resolver(&mut self, name: &str, ty: &syn::Type) { + match self.resolve_param_type(ty) { + CanonicalType::Path(segs) => { + self.bindings[0].insert(name.to_string(), segs); + } + CanonicalType::Opaque => {} + other => { + self.non_path_bindings[0].insert(name.to_string(), other); + } + } + } + + /// Resolve a parameter / closure-arg type through the full + /// scope-aware pipeline (alias expansion, transparent wrappers, + /// trait-bound extraction, inline-mod resolution). Pre-substitutes + /// bare `Self` with `self_type_canonical` so impl-body declarations + /// like `fn merge(&self, other: Self)` and typed closure params + /// resolve to the enclosing impl type. Used by both signature + /// seeding and closure-param seeding. + pub(super) fn resolve_param_type(&self, ty: &syn::Type) -> CanonicalType { + let rctx = ResolveContext { + file: self.file, + mod_stack: self.mod_stack, + type_aliases: self.workspace_index.map(|w| &w.type_aliases), + transparent_wrappers: self.workspace_index.map(|w| &w.transparent_wrappers), + workspace_files: self.workspace_files, + alias_param_subs: None, + generic_params: Some(&self.generic_params), + reexports: self.reexports, + }; + match self.self_type_canonical.as_deref() { + Some(impl_segs) => resolve_type(&substitute_bare_self(ty, impl_segs), &rctx), + None => resolve_type(ty, &rctx), + } + } + + pub(super) fn enter_scope(&mut self) { + self.bindings.push(HashMap::new()); + self.non_path_bindings.push(HashMap::new()); + } + + pub(super) fn exit_scope(&mut self) { + self.bindings.pop(); + self.non_path_bindings.pop(); + } + + /// Return the innermost binding scope. The stack is seeded non-empty + /// in `new()` and only mutated via paired `enter_scope` / `exit_scope` + /// calls, so `last_mut()` is always `Some`; fall back to index access + /// to avoid panic-helper methods in production code. + pub(super) fn current_scope_mut(&mut self) -> &mut HashMap> { + if self.bindings.is_empty() { + self.bindings.push(HashMap::new()); + } + let last = self.bindings.len() - 1; + &mut self.bindings[last] + } + + /// Parallel accessor for the non-path scope stack. Same invariants + /// and fallback semantics as `current_scope_mut`. + pub(super) fn current_non_path_scope_mut(&mut self) -> &mut HashMap { + if self.non_path_bindings.is_empty() { + self.non_path_bindings.push(HashMap::new()); + } + let last = self.non_path_bindings.len() - 1; + &mut self.non_path_bindings[last] + } + + /// Install a binding in the path-scope and evict any stale entry + /// for the same name in the non-path scope (a `let` that shadows a + /// previous wrapper-typed binding with a plain Path binding). + /// Operation. + pub(super) fn install_path_binding(&mut self, name: String, segs: Vec) { + self.current_non_path_scope_mut().remove(&name); + self.current_scope_mut().insert(name, segs); + } + + /// Install a wrapper / trait-bound binding in the non-path scope + /// and evict any stale Path binding for the same name (shadowing + /// the other way). Operation. + pub(super) fn install_non_path_binding(&mut self, name: String, ty: CanonicalType) { + self.current_scope_mut().remove(&name); + self.current_non_path_scope_mut().insert(name, ty); + } + + /// Install closure parameter bindings. For `|x: T|` the type goes + /// through the same scope-aware pipeline as signature params. For + /// untyped or destructured patterns, every bound ident gets an + /// `Opaque` tombstone — without this, an outer same-name binding + /// could leak into the closure body and synthesize a stale edge. + pub(super) fn install_closure_param(&mut self, pat: &syn::Pat) { + if let syn::Pat::Type(pt) = pat { + if let Some(name) = extract_pat_ident_name(pt.pat.as_ref()) { + match self.resolve_param_type(&pt.ty) { + CanonicalType::Path(segs) => self.install_path_binding(name, segs), + other => self.install_non_path_binding(name, other), + } + return; + } + } + let mut idents = Vec::new(); + collect_pattern_idents(pat, &mut idents); + for name in idents { + self.install_non_path_binding(name, CanonicalType::Opaque); + } + } +} diff --git a/src/adapters/analyzers/architecture/call_parity_rule/calls/visit.rs b/src/adapters/analyzers/architecture/call_parity_rule/calls/visit.rs new file mode 100644 index 00000000..b3a56372 --- /dev/null +++ b/src/adapters/analyzers/architecture/call_parity_rule/calls/visit.rs @@ -0,0 +1,169 @@ +//! The `syn::Visit` walk driving call collection. + +use super::super::bindings::extract_let_binding; +use super::resolve::{canonical_edges_for_method, trait_dispatch_edges}; +use super::{ + bare, extract_pat_ident_name, method_unknown, parse_macro_tokens, CanonicalCallCollector, +}; +use syn::spanned::Spanned; +use syn::visit::Visit; + +impl<'a, 'ast> Visit<'ast> for CanonicalCallCollector<'a> { + fn visit_block(&mut self, block: &'ast syn::Block) { + self.enter_scope(); + syn::visit::visit_block(self, block); + self.exit_scope(); + } + + fn visit_local(&mut self, local: &'ast syn::Local) { + // Walk the initializer first so calls in the RHS are recorded + // before the binding is installed. Rust shadowing semantics + // reference the outer binding in the RHS. + if let Some(init) = &local.init { + self.visit_expr(&init.expr); + if let Some((_, else_expr)) = &init.diverge { + self.visit_expr(else_expr); + } + } + if self.try_install_annotated_binding(local) { + return; + } + // The legacy `extract_let_binding` shortcut isn't mod-scope aware + // — it would install `let s = inner::Session::new()` as + // `crate::file::Session` while the index keys it under + // `crate::file::inner::Session`. Skip it when a workspace index + // is available so inference (which is scope-aware) takes over. + if self.workspace_index.is_none() { + if let Some((name, ty_canonical)) = extract_let_binding( + local, + self.file.alias_map, + self.file.local_symbols, + self.file.crate_root_modules, + self.file.path, + ) { + self.install_path_binding(name, ty_canonical); + return; + } + } + if extract_pat_ident_name(&local.pat).is_some() { + self.install_inferred_let_binding(local); + return; + } + // Destructuring: `let Some(x) = opt`, `let Ctx { field } = …`, + // `let (a, b) = …`, `let Pat = expr else { return; }`. Install + // all pattern-extracted bindings into the current scope. + if let Some(init) = local.init.as_ref() { + self.install_destructure_bindings(&local.pat, &init.expr); + } + } + + fn visit_expr_if(&mut self, expr_if: &'ast syn::ExprIf) { + self.enter_scope(); + // `if let PAT = SCRUTINEE { THEN }` — extract bindings visible + // in the then-block only. Non-let conditions are visited via + // the default walker and don't introduce bindings. + if let syn::Expr::Let(let_expr) = expr_if.cond.as_ref() { + self.visit_expr(&let_expr.expr); + self.install_destructure_bindings(&let_expr.pat, &let_expr.expr); + } else { + self.visit_expr(&expr_if.cond); + } + self.visit_block(&expr_if.then_branch); + self.exit_scope(); + if let Some((_, else_branch)) = &expr_if.else_branch { + self.visit_expr(else_branch); + } + } + + fn visit_expr_while(&mut self, expr_while: &'ast syn::ExprWhile) { + self.enter_scope(); + if let syn::Expr::Let(let_expr) = expr_while.cond.as_ref() { + self.visit_expr(&let_expr.expr); + self.install_destructure_bindings(&let_expr.pat, &let_expr.expr); + } else { + self.visit_expr(&expr_while.cond); + } + self.visit_block(&expr_while.body); + self.exit_scope(); + } + + fn visit_expr_match(&mut self, expr_match: &'ast syn::ExprMatch) { + self.visit_expr(&expr_match.expr); + for arm in &expr_match.arms { + self.enter_scope(); + self.install_destructure_bindings(&arm.pat, &expr_match.expr); + if let Some((_, guard)) = &arm.guard { + self.visit_expr(guard); + } + self.visit_expr(&arm.body); + self.exit_scope(); + } + } + + fn visit_expr_for_loop(&mut self, for_loop: &'ast syn::ExprForLoop) { + self.visit_expr(&for_loop.expr); + self.enter_scope(); + self.install_for_bindings(&for_loop.pat, &for_loop.expr); + self.visit_block(&for_loop.body); + self.exit_scope(); + } + + fn visit_expr_call(&mut self, call: &'ast syn::ExprCall) { + // Walk func + args first so nested calls / macros are recorded. + self.visit_expr(&call.func); + for arg in &call.args { + self.visit_expr(arg); + } + if let syn::Expr::Path(p) = call.func.as_ref() { + let segments: Vec = p + .path + .segments + .iter() + .map(|s| s.ident.to_string()) + .collect(); + let leading_colon = p.path.leading_colon.is_some(); + if let Some(targets) = self.canonicalise_generic_param_path(&segments, leading_colon) { + for t in targets { + self.record_call(t); + } + } else { + let canonical = self.canonicalise_path(&segments, leading_colon); + self.record_call(canonical); + } + } + } + + fn visit_expr_method_call(&mut self, call: &'ast syn::ExprMethodCall) { + // Walk receiver + args so nested resolution / method chains record. + self.visit_expr(&call.receiver); + for arg in &call.args { + self.visit_expr(arg); + } + let method_name = call.method.to_string(); + let targets = self.resolve_method_targets(&call.receiver, &method_name); + if targets.is_empty() { + self.record_call(method_unknown(&method_name)); + } else { + for t in targets { + self.record_call(t); + } + } + } + + fn visit_macro(&mut self, mac: &'ast syn::Macro) { + // Walk the macro's token stream as expressions so calls inside + // `vec![]`, `assert!()`, etc. are still collected. + for expr in parse_macro_tokens(mac.tokens.clone()) { + self.visit_expr(&expr); + } + } + + fn visit_expr_closure(&mut self, c: &'ast syn::ExprClosure) { + self.enter_scope(); + for input in &c.inputs { + self.install_closure_param(input); + } + self.visit_expr(&c.body); + self.exit_scope(); + } +} diff --git a/src/adapters/analyzers/architecture/tests/call_parity_golden.rs b/src/adapters/analyzers/architecture/tests/call_parity_golden.rs index 435eca0a..d4b70d3c 100644 --- a/src/adapters/analyzers/architecture/tests/call_parity_golden.rs +++ b/src/adapters/analyzers/architecture/tests/call_parity_golden.rs @@ -7,11 +7,13 @@ //! calls it, so the coverage set is incomplete). //! //! Additionally, `cmd_debug` in the CLI adapter carries -//! `// qual:allow(architecture)` so it emits a raw finding that must -//! then be suppressed by the architecture-dimension suppression +//! `// qual:allow(architecture, call_parity)` so it emits a raw finding +//! that must then be suppressed by the architecture-dimension suppression //! pipeline. The end-to-end `cargo run -- examples/...` path exercises //! that filter; this unit test exercises the raw-finding layer so a -//! regression in either step is localised. +//! regression in either step is localised. A second test guards the +//! example's markers themselves, since `examples/**` is excluded from +//! self-analysis. use crate::adapters::analyzers::architecture::call_parity_rule::{ self, RULE_MISSING_ADAPTER, RULE_NO_DELEGATION, @@ -124,3 +126,26 @@ fn call_parity_golden_example_produces_expected_findings() { ma.message ); } + +#[test] +fn golden_example_has_no_invalid_suppression_markers() { + // `examples/**` is excluded from self-analysis and the golden test above + // does not parse suppressions, so a stale marker (e.g. a post-flip bare + // `allow(architecture)`) could rot unnoticed. Guard every `qual:allow` + // marker in the example here. + use crate::adapters::suppression::qual_allow::detect_invalid_qual_allow; + let root = example_root(); + for pf in parsed_files(&root) { + for (i, line) in pf.content.lines().enumerate() { + let trimmed = line.trim(); + if trimmed.contains("qual:allow") { + assert!( + detect_invalid_qual_allow(trimmed).is_none(), + "{}:{} is an invalid suppression marker: {trimmed}", + pf.path, + i + 1 + ); + } + } + } +} diff --git a/src/adapters/analyzers/architecture/tests/forbidden_rule.rs b/src/adapters/analyzers/architecture/tests/forbidden_rule.rs index 3b4b3648..bbedfaba 100644 --- a/src/adapters/analyzers/architecture/tests/forbidden_rule.rs +++ b/src/adapters/analyzers/architecture/tests/forbidden_rule.rs @@ -122,7 +122,7 @@ fn import_of_different_module_same_adapter_tree_ok_when_to_is_peer_only() { // iosp importing from its own tree is fine. let fx = Fixture::new(&[( "src/adapters/analyzers/iosp/mod.rs", - "use crate::adapters::analyzers::iosp::scope::ProjectScope;", + "use crate::adapters::shared::project_scope::ProjectScope;", )]); // `to` only matches analyzers/ but must NOT include iosp itself. // Use an except to exclude iosp. diff --git a/src/adapters/analyzers/architecture/tests/layer_rule.rs b/src/adapters/analyzers/architecture/tests/layer_rule.rs index b76cb83d..ffd61e44 100644 --- a/src/adapters/analyzers/architecture/tests/layer_rule.rs +++ b/src/adapters/analyzers/architecture/tests/layer_rule.rs @@ -67,13 +67,18 @@ impl Fixture { } } +/// External-crate layer mappings for a layer-rule test run (exact + glob). +struct Externals<'a> { + exact: &'a HashMap, + glob: &'a [(GlobMatcher, String)], +} + fn run( fixture: &Fixture, layers: &LayerDefinitions, reexport: &GlobSet, unmatched: UnmatchedBehavior, - external_exact: &HashMap, - external_glob: &[(GlobMatcher, String)], + externals: Externals, ) -> Vec { let refs = fixture.refs(); check_layer_rule( @@ -82,8 +87,8 @@ fn run( layers, reexport_points: reexport, unmatched_behavior: unmatched, - external_exact, - external_glob, + external_exact: externals.exact, + external_glob: externals.glob, }, ) } @@ -94,8 +99,10 @@ fn run_simple(fixture: &Fixture) -> Vec { &default_layers(), &glob_set(&[]), UnmatchedBehavior::CompositionRoot, - &HashMap::new(), - &[], + Externals { + exact: &HashMap::new(), + glob: &[], + }, ) } @@ -251,8 +258,10 @@ fn external_exact_match_enforced() { &default_layers(), &glob_set(&[]), UnmatchedBehavior::CompositionRoot, - &ext, - &[], + Externals { + exact: &ext, + glob: &[], + }, ); assert_eq!(hits.len(), 1, "{hits:?}"); match &hits[0].kind { @@ -278,8 +287,10 @@ fn external_glob_match_enforced() { &default_layers(), &glob_set(&[]), UnmatchedBehavior::CompositionRoot, - &HashMap::new(), - &ext_glob, + Externals { + exact: &HashMap::new(), + glob: &ext_glob, + }, ); assert_eq!(hits.len(), 1, "{hits:?}"); } @@ -296,8 +307,10 @@ fn external_exact_wins_over_glob() { &default_layers(), &glob_set(&[]), UnmatchedBehavior::CompositionRoot, - &ext_exact, - &ext_glob, + Externals { + exact: &ext_exact, + glob: &ext_glob, + }, ); assert!(hits.is_empty(), "exact must win: {hits:?}"); } @@ -322,8 +335,10 @@ fn reexport_point_bypasses_rule() { &default_layers(), &reexport, UnmatchedBehavior::CompositionRoot, - &HashMap::new(), - &[], + Externals { + exact: &HashMap::new(), + glob: &[], + }, ); assert!(hits.is_empty(), "re-export point must bypass: {hits:?}"); } @@ -340,8 +355,10 @@ fn unmatched_composition_root_bypasses() { &default_layers(), &glob_set(&[]), UnmatchedBehavior::CompositionRoot, - &HashMap::new(), - &[], + Externals { + exact: &HashMap::new(), + glob: &[], + }, ); assert!(hits.is_empty(), "unmatched composition root: {hits:?}"); } @@ -354,8 +371,10 @@ fn unmatched_strict_error_emits_one_violation() { &default_layers(), &glob_set(&[]), UnmatchedBehavior::StrictError, - &HashMap::new(), - &[], + Externals { + exact: &HashMap::new(), + glob: &[], + }, ); assert_eq!(hits.len(), 1); match &hits[0].kind { @@ -375,8 +394,10 @@ fn strict_error_does_not_flag_reexport_points() { &default_layers(), &reexport, UnmatchedBehavior::StrictError, - &HashMap::new(), - &[], + Externals { + exact: &HashMap::new(), + glob: &[], + }, ); assert!(hits.is_empty(), "{hits:?}"); } diff --git a/src/adapters/analyzers/coupling/cycles.rs b/src/adapters/analyzers/coupling/cycles.rs index 43ba515c..e9abd6d6 100644 --- a/src/adapters/analyzers/coupling/cycles.rs +++ b/src/adapters/analyzers/coupling/cycles.rs @@ -3,80 +3,107 @@ use super::{CycleReport, ModuleGraph}; /// Minimum SCC size to report as a cycle (single nodes are not cycles). const MIN_CYCLE_SIZE: usize = 2; -// qual:allow(complexity) reason: "Kosaraju three-pass algorithm is inherently complex" /// Detect circular dependencies using Kosaraju's algorithm (iterative). -/// Operation: graph traversal logic (two-pass DFS), no own calls. +/// Integration: finish-order DFS, reverse graph, then SCC collection. pub(super) fn detect_cycles(graph: &ModuleGraph) -> Vec { - let n = graph.modules.len(); - if n == 0 { + if graph.modules.is_empty() { return vec![]; } + let order = finish_order(graph); + let reverse = reverse_graph(graph); + collect_sccs(graph, &order, &reverse) +} - // Pass 1: iterative DFS to compute finish order +/// Kosaraju pass 1: iterative DFS finish order over the forward graph. +/// Operation: per-root DFS via a helper. +fn finish_order(graph: &ModuleGraph) -> Vec { + let n = graph.modules.len(); let mut visited = vec![false; n]; - let mut finish_order = Vec::with_capacity(n); - + let mut order = Vec::with_capacity(n); for start in 0..n { - if visited[start] { - continue; + if !visited[start] { + dfs_finish(graph, start, &mut visited, &mut order); } - let mut stack: Vec<(usize, usize)> = vec![(start, 0)]; - visited[start] = true; + } + order +} - while let Some((node, idx)) = stack.last_mut() { - if *idx < graph.forward[*node].len() { - let next = graph.forward[*node][*idx]; - *idx += 1; - if !visited[next] { - visited[next] = true; - stack.push((next, 0)); - } - } else { - finish_order.push(*node); - stack.pop(); +/// Iterative post-order DFS from `start`, appending nodes to `order` as they +/// finish. +/// Operation: explicit stack walk. +fn dfs_finish(graph: &ModuleGraph, start: usize, visited: &mut [bool], order: &mut Vec) { + let mut stack: Vec<(usize, usize)> = vec![(start, 0)]; + visited[start] = true; + while let Some((node, idx)) = stack.last_mut() { + if *idx < graph.forward[*node].len() { + let next = graph.forward[*node][*idx]; + *idx += 1; + if !visited[next] { + visited[next] = true; + stack.push((next, 0)); } + } else { + order.push(*node); + stack.pop(); } } +} - // Pass 2: build reverse graph - let mut reverse = vec![vec![]; n]; +/// Kosaraju pass 2: the reverse adjacency of the forward graph. +/// Operation: edge transposition, no own calls. +fn reverse_graph(graph: &ModuleGraph) -> Vec> { + let mut reverse = vec![vec![]; graph.modules.len()]; for (from, neighbors) in graph.forward.iter().enumerate() { for &to in neighbors { reverse[to].push(from); } } + reverse +} - // Pass 3: DFS on reverse graph in reverse finish order - let mut visited2 = vec![false; n]; - let mut sccs = Vec::new(); - - for &start in finish_order.iter().rev() { - if visited2[start] { +/// Kosaraju pass 3: DFS the reverse graph in reverse finish order, reporting +/// each SCC of size `>= MIN_CYCLE_SIZE`. +/// Operation: per-root component collection via helpers. +fn collect_sccs(graph: &ModuleGraph, order: &[usize], reverse: &[Vec]) -> Vec { + let mut visited = vec![false; graph.modules.len()]; + let mut reports = Vec::new(); + for &start in order.iter().rev() { + if visited[start] { continue; } - let mut component = Vec::new(); - let mut stack = vec![start]; - visited2[start] = true; - - while let Some(node) = stack.pop() { - component.push(node); - for &next in &reverse[node] { - if !visited2[next] { - visited2[next] = true; - stack.push(next); - } - } + let component = collect_component(start, reverse, &mut visited); + if component.len() >= MIN_CYCLE_SIZE { + reports.push(scc_report(graph, &component)); } + } + reports +} - if component.len() >= MIN_CYCLE_SIZE { - let mut names: Vec = component - .iter() - .map(|&i| graph.modules[i].clone()) - .collect(); - names.sort(); - sccs.push(CycleReport { modules: names }); +/// The reverse-graph component reachable from `start` (iterative DFS). +/// Operation: explicit stack walk. +fn collect_component(start: usize, reverse: &[Vec], visited: &mut [bool]) -> Vec { + let mut component = Vec::new(); + let mut stack = vec![start]; + visited[start] = true; + while let Some(node) = stack.pop() { + component.push(node); + for &next in &reverse[node] { + if !visited[next] { + visited[next] = true; + stack.push(next); + } } } + component +} - sccs +/// A `CycleReport` carrying the SCC's module names, sorted. +/// Operation: name lookup + sort via closures. +fn scc_report(graph: &ModuleGraph, component: &[usize]) -> CycleReport { + let mut names: Vec = component + .iter() + .map(|&i| graph.modules[i].clone()) + .collect(); + names.sort(); + CycleReport { modules: names } } diff --git a/src/adapters/analyzers/coupling/graph.rs b/src/adapters/analyzers/coupling/graph.rs index 9044b78b..946a076d 100644 --- a/src/adapters/analyzers/coupling/graph.rs +++ b/src/adapters/analyzers/coupling/graph.rs @@ -4,98 +4,119 @@ use crate::adapters::shared::file_to_module::file_to_module; use super::ModuleGraph; -// qual:allow(complexity) reason: "stack-based use-tree traversal requires complex loop" /// Build a module dependency graph from parsed files' `use crate::` statements. -/// Operation: iterates files and use trees (stack-based), builds adjacency lists. -/// Calls `file_to_module` via closure for IOSP compliance. +/// Integration: collect modules, then add each file's intra-crate edges. pub(super) fn build_module_graph(parsed: &[(String, String, syn::File)]) -> ModuleGraph { - let to_module = |path: &str| file_to_module(path); - - // Collect all unique module names - let mut module_set: HashSet = HashSet::new(); - for (path, _, _) in parsed { - module_set.insert(to_module(path)); + let (modules, index) = collect_modules(parsed); + let mut forward = vec![HashSet::::new(); modules.len()]; + for (path, _, syntax) in parsed { + let source_idx = index[&file_to_module(path)]; + add_edges( + &mut forward[source_idx], + source_idx, + &crate_dep_modules(syntax), + &index, + ); } - let mut modules: Vec = module_set.into_iter().collect(); - modules.sort(); + ModuleGraph { + modules, + forward: sort_adjacency(forward), + } +} - let module_index: HashMap = modules +/// Sorted unique module names + their index map. +/// Operation: set build + sort, own call in closure. +fn collect_modules( + parsed: &[(String, String, syn::File)], +) -> (Vec, HashMap) { + let mut modules: Vec = parsed + .iter() + .map(|(path, _, _)| file_to_module(path)) + .collect::>() + .into_iter() + .collect(); + modules.sort(); + let index = modules .iter() .enumerate() .map(|(i, name)| (name.clone(), i)) .collect(); + (modules, index) +} - let n = modules.len(); - let mut forward = vec![HashSet::::new(); n]; - - for (path, _, syntax) in parsed { - let source_module = to_module(path); - let source_idx = module_index[&source_module]; +/// The `crate::` second-segment names imported by a file's `use` items. +/// Operation: filter_map over fully-expanded use paths in closures. +fn crate_dep_modules(syntax: &syn::File) -> Vec { + use_paths(syntax) + .into_iter() + .filter_map(|segs| { + (segs.first().is_some_and(|s| s == "crate") && segs.len() >= 2).then(|| segs[1].clone()) + }) + .collect() +} - // Stack-based iterative walk of use trees - let mut stack: Vec<(&syn::UseTree, Vec)> = Vec::new(); - for item in &syntax.items { - if let syn::Item::Use(use_item) = item { - stack.push((&use_item.tree, Vec::new())); - } +/// Fully-expanded path-segment lists for every terminal node of a file's `use` +/// trees, via an iterative stack walk (paths and groups fan out, names/renames/ +/// globs terminate). Unknown future `syn` variants are skipped. +/// Operation: stack walk with per-variant handling. +fn use_paths(syntax: &syn::File) -> Vec> { + let mut stack: Vec<(&syn::UseTree, Vec)> = syntax + .items + .iter() + .filter_map(|item| match item { + syn::Item::Use(u) => Some((&u.tree, Vec::new())), + _ => None, + }) + .collect(); + let mut paths = Vec::new(); + while let Some((tree, segments)) = stack.pop() { + match tree { + syn::UseTree::Path(p) => stack.push((&p.tree, pushed(&segments, &p.ident))), + syn::UseTree::Group(g) => g + .items + .iter() + .for_each(|sub| stack.push((sub, segments.clone()))), + syn::UseTree::Name(name) => paths.push(pushed(&segments, &name.ident)), + syn::UseTree::Rename(r) => paths.push(pushed(&segments, &r.ident)), + syn::UseTree::Glob(_) => paths.push(segments), } + } + paths +} - while let Some((tree, segments)) = stack.pop() { - match tree { - syn::UseTree::Path(p) => { - let mut new_segments = segments.clone(); - new_segments.push(p.ident.to_string()); - stack.push((&p.tree, new_segments)); - continue; - } - syn::UseTree::Group(g) => { - for subtree in &g.items { - stack.push((subtree, segments.clone())); - } - continue; - } - _ => {} // Name, Rename, Glob handled below - } - - // Terminal nodes: compute final path segments. A future `syn` - // variant (the enum is `#[non_exhaustive]` in spirit) should be - // silently skipped, not panic. - let final_segments = match tree { - syn::UseTree::Name(name) => { - let mut s = segments; - s.push(name.ident.to_string()); - s - } - syn::UseTree::Rename(rename) => { - let mut s = segments; - s.push(rename.ident.to_string()); - s - } - syn::UseTree::Glob(_) => segments, - _ => continue, - }; +/// `segments` with `ident` appended. +/// Operation: clone + push, no own calls. +fn pushed(segments: &[String], ident: &syn::Ident) -> Vec { + let mut s = segments.to_vec(); + s.push(ident.to_string()); + s +} - // Only track intra-crate dependencies (use crate::xxx) - if final_segments.first().is_some_and(|s| s == "crate") && final_segments.len() >= 2 { - let dep_module = &final_segments[1]; - if let Some(&dep_idx) = module_index.get(dep_module.as_str()) { - if dep_idx != source_idx { - forward[source_idx].insert(dep_idx); - } - } - } - } - } +/// Add `source_idx → dep` edges for every known, non-self dependency module. +/// Operation: per-dep lookup, own calls in closures. +fn add_edges( + row: &mut HashSet, + source_idx: usize, + deps: &[String], + index: &HashMap, +) { + deps.iter() + .filter_map(|dep| index.get(dep.as_str()).copied()) + .filter(|&dep_idx| dep_idx != source_idx) + .for_each(|dep_idx| { + row.insert(dep_idx); + }); +} - // Convert HashSets to sorted Vecs for deterministic output - let forward: Vec> = forward +/// Convert adjacency sets to sorted Vecs for deterministic output. +/// Operation: per-row sort in closures. +fn sort_adjacency(forward: Vec>) -> Vec> { + forward .into_iter() .map(|set| { let mut v: Vec = set.into_iter().collect(); v.sort(); v }) - .collect(); - - ModuleGraph { modules, forward } + .collect() } diff --git a/src/adapters/analyzers/dry/boilerplate/builder.rs b/src/adapters/analyzers/dry/boilerplate/builder.rs index 63a7a526..8b289b1c 100644 --- a/src/adapters/analyzers/dry/boilerplate/builder.rs +++ b/src/adapters/analyzers/dry/boilerplate/builder.rs @@ -1,90 +1,88 @@ use syn::spanned::Spanned; -use super::{is_self_field_access, BoilerplateFind}; +use super::{is_self_field_access, self_type_of, BoilerplateFind}; use crate::config::sections::BoilerplateConfig; /// Minimum builder-style methods to flag on one struct. const MIN_BUILDER_METHOD_COUNT: usize = 3; -// qual:allow(complexity) reason: "builder pattern detection requires nested AST inspection" /// Detect structs with many builder-style methods (set field + return self). -/// Operation: per-impl counting logic; helper calls in closures. +/// Integration: delegates the per-item scan to the shared `scan_items`. pub(super) fn check_builder_boilerplate( parsed: &[(String, String, syn::File)], config: &BoilerplateConfig, ) -> Vec { - pattern_guard!("BP-004", config); + super::scan_items(parsed, config, "BP-004", |item, file| { + builder_find(item, file, config) + }) +} + +/// BP-004 find for an item: a non-trait impl with at least +/// `MIN_BUILDER_METHOD_COUNT` builder-style methods. +/// Operation: method count + find building via closures. +fn builder_find( + item: &syn::Item, + file: &str, + config: &BoilerplateConfig, +) -> Option { + let syn::Item::Impl(imp) = item else { + return None; + }; + if imp.trait_.is_some() { + return None; + } + let count = imp.items.iter().filter(|i| is_builder_method(i)).count(); + if count < MIN_BUILDER_METHOD_COUNT { + return None; + } let suggest = if config.suggest_crates { "Consider using typed_builder or derive_builder" } else { "Consider using a builder derive macro to reduce repetition" }; - let mut findings = Vec::new(); - for (file, _, syntax) in parsed { - for item in &syntax.items { - let imp = if let syn::Item::Impl(imp) = item { - imp - } else { - continue; - }; - if imp.trait_.is_some() { - continue; - } - let count = imp - .items - .iter() - .filter(|i| { - if let syn::ImplItem::Fn(m) = i { - // Must return Self - let returns_self = if let syn::ReturnType::Type(_, ty) = &m.sig.output { - if let syn::Type::Path(tp) = &**ty { - tp.path.segments.last().is_some_and(|s| s.ident == "Self") - } else { - false - } - } else { - false - }; - if !returns_self || m.block.stmts.len() != 2 { - return false; - } - // First stmt: self.field = value; - let has_assign = matches!( - &m.block.stmts[0], - syn::Stmt::Expr(syn::Expr::Assign(a), Some(_)) - if is_self_field_access(&a.left) - ); - // Second stmt: self (return) - let returns_self_val = matches!( - &m.block.stmts[1], - syn::Stmt::Expr(syn::Expr::Path(p), None) - if p.path.segments.last().is_some_and(|s| s.ident == "self") - ); - has_assign && returns_self_val - } else { - false - } - }) - .count(); - if count >= MIN_BUILDER_METHOD_COUNT { - let struct_name = if let syn::Type::Path(tp) = &*imp.self_ty { - tp.path.segments.last().map(|s| s.ident.to_string()) - } else { - None - }; - findings.push(BoilerplateFind { - pattern_id: "BP-004".to_string(), - file: file.clone(), - line: imp.self_ty.span().start().line, - struct_name, - description: format!( - "{count} builder-style methods with repetitive set-and-return pattern" - ), - suggestion: suggest.to_string(), - suppressed: false, - }); - } - } - } - findings + Some(BoilerplateFind { + pattern_id: "BP-004".to_string(), + file: file.to_string(), + line: imp.self_ty.span().start().line, + struct_name: self_type_of(imp), + description: format!( + "{count} builder-style methods with repetitive set-and-return pattern" + ), + suggestion: suggest.to_string(), + suppressed: false, + }) +} + +/// A builder-style method: returns `Self`, body is exactly `self.field = v;` then +/// `self`. +/// Operation: shape checks via helpers. +fn is_builder_method(item: &syn::ImplItem) -> bool { + let syn::ImplItem::Fn(m) = item else { + return false; + }; + method_returns_self(&m.sig.output) + && m.block.stmts.len() == 2 + && is_field_assign(&m.block.stmts[0]) + && is_self_expr(&m.block.stmts[1]) +} + +/// Whether a return type names `Self` directly. +/// Operation: nested type match, no own calls. +fn method_returns_self(output: &syn::ReturnType) -> bool { + matches!(output, syn::ReturnType::Type(_, ty) + if matches!(&**ty, syn::Type::Path(tp) + if tp.path.segments.last().is_some_and(|s| s.ident == "Self"))) +} + +/// Whether a statement assigns to a `self.field`. +/// Operation: shape match, own call in guard. +fn is_field_assign(stmt: &syn::Stmt) -> bool { + matches!(stmt, syn::Stmt::Expr(syn::Expr::Assign(a), Some(_)) if is_self_field_access(&a.left)) +} + +/// Whether a statement is the bare `self` return expression. +/// Operation: shape match, no own calls. +fn is_self_expr(stmt: &syn::Stmt) -> bool { + matches!(stmt, syn::Stmt::Expr(syn::Expr::Path(p), None) + if p.path.segments.last().is_some_and(|s| s.ident == "self")) } diff --git a/src/adapters/analyzers/dry/boilerplate/clone_conversion.rs b/src/adapters/analyzers/dry/boilerplate/clone_conversion.rs index c5f13b83..58a75060 100644 --- a/src/adapters/analyzers/dry/boilerplate/clone_conversion.rs +++ b/src/adapters/analyzers/dry/boilerplate/clone_conversion.rs @@ -4,69 +4,77 @@ use crate::config::sections::BoilerplateConfig; /// Minimum cloned fields for clone-heavy conversion detection. const MIN_CLONE_FIELDS: usize = 3; -// qual:allow(complexity) reason: "clone detection with closure-based body check" /// Detect struct construction with many `.clone()` calls on fields. -/// Operation: body inspection logic; helper calls in closures. +/// Operation: per-file scan, detection delegated to helpers in closures. pub(super) fn check_clone_heavy_conversion( parsed: &[(String, String, syn::File)], config: &BoilerplateConfig, ) -> Vec { pattern_guard!("BP-008", config); - let mut findings = Vec::new(); - for (file, _, syntax) in parsed { - let check_body = |block: &syn::Block, line: usize| { - for stmt in &block.stmts { - let expr = match stmt { - syn::Stmt::Expr(e, _) => e, - syn::Stmt::Local(local) => { - if let Some(init) = &local.init { - &*init.expr - } else { - continue; - } - } - _ => continue, - }; - let clones = count_field_clones(expr); - if clones >= MIN_CLONE_FIELDS { - return Some(BoilerplateFind { - pattern_id: "BP-008".to_string(), - file: file.clone(), - line, - struct_name: None, - description: format!( - "Struct construction with {clones} .clone() calls — consider Into/From or ownership transfer" - ), - suggestion: - "Consider implementing From/Into or restructuring to avoid cloning" - .to_string(), - suppressed: false, - }); - } - } - None - }; - for item in &syntax.items { - match item { - syn::Item::Fn(f) => { - if let Some(finding) = check_body(&f.block, f.sig.ident.span().start().line) { - findings.push(finding); - } - } - syn::Item::Impl(imp) => { - for sub in &imp.items { - if let syn::ImplItem::Fn(m) = sub { - if let Some(finding) = - check_body(&m.block, m.sig.ident.span().start().line) - { - findings.push(finding); - } - } - } - } - _ => {} - } - } + parsed + .iter() + .flat_map(|(file, _, syntax)| { + syntax + .items + .iter() + .flat_map(item_fn_bodies) + .filter_map(|(block, line)| clone_heavy_find(block, file, line)) + .collect::>() + }) + .collect() +} + +/// Yield each `(body, decl-line)` for an item: a free fn, or every method of an +/// impl block. Other items contribute nothing. +/// Operation: item match + impl-method filter in a closure. +fn item_fn_bodies(item: &syn::Item) -> Vec<(&syn::Block, usize)> { + match item { + syn::Item::Fn(f) => vec![(&f.block, f.sig.ident.span().start().line)], + syn::Item::Impl(imp) => imp + .items + .iter() + .filter_map(|sub| match sub { + syn::ImplItem::Fn(m) => Some((&m.block, m.sig.ident.span().start().line)), + _ => None, + }) + .collect(), + _ => vec![], + } +} + +/// Find the first statement in `block` whose value is a struct construction with +/// `>= MIN_CLONE_FIELDS` cloned fields, as a BP-008 find. +/// Operation: statement scan via closures. +fn clone_heavy_find(block: &syn::Block, file: &str, line: usize) -> Option { + block.stmts.iter().find_map(|stmt| { + let clones = count_field_clones(stmt_value(stmt)?); + (clones >= MIN_CLONE_FIELDS).then(|| bp008(file, line, clones)) + }) +} + +/// The expression a statement evaluates: a tail/expr statement, or a local's +/// initializer. Items and empty locals have no value. +/// Operation: statement match, no own calls. +fn stmt_value(stmt: &syn::Stmt) -> Option<&syn::Expr> { + match stmt { + syn::Stmt::Expr(e, _) => Some(e), + syn::Stmt::Local(local) => local.init.as_ref().map(|init| &*init.expr), + _ => None, + } +} + +/// Build the BP-008 finding for `clones` cloned fields at `file:line`. +/// Operation: struct construction, no own calls. +fn bp008(file: &str, line: usize, clones: usize) -> BoilerplateFind { + BoilerplateFind { + pattern_id: "BP-008".to_string(), + file: file.to_string(), + line, + struct_name: None, + description: format!( + "Struct construction with {clones} .clone() calls — consider Into/From or ownership transfer" + ), + suggestion: "Consider implementing From/Into or restructuring to avoid cloning".to_string(), + suppressed: false, } - findings } diff --git a/src/adapters/analyzers/dry/boilerplate/error_enum.rs b/src/adapters/analyzers/dry/boilerplate/error_enum.rs index 8d6c76f9..52b60cbd 100644 --- a/src/adapters/analyzers/dry/boilerplate/error_enum.rs +++ b/src/adapters/analyzers/dry/boilerplate/error_enum.rs @@ -1,14 +1,13 @@ use syn::spanned::Spanned; -use super::BoilerplateFind; +use super::{self_type_of, trait_name_of, BoilerplateFind}; use crate::config::sections::BoilerplateConfig; /// Minimum From impls to flag as error enum boilerplate. const MIN_FROM_IMPLS_FOR_ERROR: usize = 3; -// qual:allow(complexity) reason: "From impl grouping requires nested AST inspection" /// Detect enums with multiple trivial `impl From` for wrapping errors. -/// Operation: grouping + counting logic; helper calls in closures. +/// Operation: per-file grouping, detection delegated to helpers in closures. pub(super) fn check_error_enum_boilerplate( parsed: &[(String, String, syn::File)], config: &BoilerplateConfig, @@ -19,70 +18,73 @@ pub(super) fn check_error_enum_boilerplate( } else { "Consider using a derive macro to generate From implementations for error variants" }; - let mut findings = Vec::new(); - for (file, _, syntax) in parsed { - // Collect all trivial From impls grouped by target type - let mut from_counts: std::collections::HashMap = - std::collections::HashMap::new(); - for item in &syntax.items { - let imp = if let syn::Item::Impl(imp) = item { - imp - } else { - continue; - }; - let is_from = imp.trait_.as_ref().is_some_and(|(_, path, _)| { - path.segments.last().is_some_and(|s| s.ident == "From") - }); - if !is_from { - continue; - } - let self_name = if let syn::Type::Path(tp) = &*imp.self_ty { - if let Some(seg) = tp.path.segments.last() { - seg.ident.to_string() - } else { - continue; - } - } else { - continue; - }; - // Check if single method with simple wrapping body - let methods: Vec<_> = imp - .items - .iter() - .filter_map(|i| { - if let syn::ImplItem::Fn(m) = i { - Some(m) - } else { - None - } - }) - .collect(); - if methods.len() == 1 && methods[0].sig.ident == "from" { - let has_single_expr = methods[0].block.stmts.len() == 1 - && matches!(&methods[0].block.stmts[0], syn::Stmt::Expr(_, None)); - if has_single_expr { - let entry = from_counts - .entry(self_name) - .or_insert((0, imp.self_ty.span().start().line)); - entry.0 += 1; - } - } - } - for (type_name, (count, line)) in &from_counts { - if *count >= MIN_FROM_IMPLS_FOR_ERROR { - findings.push(BoilerplateFind { - pattern_id: "BP-007".to_string(), - file: file.clone(), - line: *line, - struct_name: Some(type_name.clone()), - description: format!( - "{count} trivial From impls for {type_name} — error enum boilerplate" - ), - suggestion: suggest.to_string(), - suppressed: false, - }); - } - } + parsed + .iter() + .flat_map(|(file, _, syntax)| { + count_from_impls(syntax) + .into_iter() + .filter(|(_, (count, _))| *count >= MIN_FROM_IMPLS_FOR_ERROR) + .map(|(name, (count, line))| bp007(file, line, &name, count, suggest)) + .collect::>() + }) + .collect() +} + +/// Group trivial `From<_>` impls by their target type → `(count, first line)`. +/// Operation: filter_map + fold via closures. +fn count_from_impls(syntax: &syn::File) -> std::collections::HashMap { + let mut counts: std::collections::HashMap = + std::collections::HashMap::new(); + syntax + .items + .iter() + .filter_map(trivial_from_impl) + .for_each(|(name, line)| { + counts.entry(name).or_insert((0, line)).0 += 1; + }); + counts +} + +/// `(target type, decl line)` for an item that is a single-method `from` +/// `impl From<_>` with a one-expression body, else `None`. +/// Operation: trait/type checks via helpers in closures. +fn trivial_from_impl(item: &syn::Item) -> Option<(String, usize)> { + let syn::Item::Impl(imp) = item else { + return None; + }; + if trait_name_of(imp).as_deref() != Some("From") || !is_single_expr_from(imp) { + return None; + } + Some((self_type_of(imp)?, imp.self_ty.span().start().line)) +} + +/// Whether an impl has exactly one `from` method with a single-expression body. +/// Operation: method filter + shape match in closures. +fn is_single_expr_from(imp: &syn::ItemImpl) -> bool { + let methods: Vec<_> = imp + .items + .iter() + .filter_map(|i| match i { + syn::ImplItem::Fn(m) => Some(m), + _ => None, + }) + .collect(); + methods.len() == 1 + && methods[0].sig.ident == "from" + && methods[0].block.stmts.len() == 1 + && matches!(&methods[0].block.stmts[0], syn::Stmt::Expr(_, None)) +} + +/// Build a BP-007 error-enum finding. +/// Operation: struct construction, no own calls. +fn bp007(file: &str, line: usize, type_name: &str, count: usize, suggest: &str) -> BoilerplateFind { + BoilerplateFind { + pattern_id: "BP-007".to_string(), + file: file.to_string(), + line, + struct_name: Some(type_name.to_string()), + description: format!("{count} trivial From impls for {type_name} — error enum boilerplate"), + suggestion: suggest.to_string(), + suppressed: false, } - findings } diff --git a/src/adapters/analyzers/dry/boilerplate/getter_setter.rs b/src/adapters/analyzers/dry/boilerplate/getter_setter.rs index bfd6c98a..ba0973a7 100644 --- a/src/adapters/analyzers/dry/boilerplate/getter_setter.rs +++ b/src/adapters/analyzers/dry/boilerplate/getter_setter.rs @@ -4,77 +4,102 @@ use crate::config::sections::BoilerplateConfig; /// Minimum getter/setter methods to flag on one struct. const MIN_GETTER_SETTER_COUNT: usize = 3; -// qual:allow(complexity) reason: "getter/setter detection requires nested AST inspection" /// Detect structs with many trivial getter/setter methods. -/// Operation: per-impl counting logic; helper calls in closures. +/// Operation: per-file scan, per-impl detection delegated to a helper. pub(super) fn check_manual_getter_setter( parsed: &[(String, String, syn::File)], config: &BoilerplateConfig, ) -> Vec { pattern_guard!("BP-003", config); - let mut findings = Vec::new(); - for (file, _, syntax) in parsed { - for item in &syntax.items { - let imp = if let syn::Item::Impl(imp) = item { - imp - } else { - continue; - }; - // Skip trait impls - if imp.trait_.is_some() { - continue; - } - let getter_methods: Vec<&syn::ImplItemFn> = imp + parsed + .iter() + .flat_map(|(file, _, syntax)| { + syntax .items .iter() - .filter_map(|i| { - if let syn::ImplItem::Fn(m) = i { - let is_getter = m.block.stmts.len() == 1 - && m.sig.inputs.len() == 1 - && { - if let Some(expr) = single_return_expr(&m.block) { - is_self_field_access(expr) - || matches!(expr, syn::Expr::Reference(r) if is_self_field_access(&r.expr)) - } else { - false - } - }; - let is_setter = m.block.stmts.len() == 1 - && m.sig.inputs.len() == 2 - && matches!( - &m.block.stmts[0], - syn::Stmt::Expr(syn::Expr::Assign(a), Some(_)) - if is_self_field_access(&a.left) - ); - if is_getter || is_setter { Some(m) } else { None } - } else { - None - } - }) - .collect(); - if getter_methods.len() >= MIN_GETTER_SETTER_COUNT { - let struct_name = if let syn::Type::Path(tp) = &*imp.self_ty { - tp.path.segments.last().map(|s| s.ident.to_string()) - } else { - None - }; - getter_methods.iter().for_each(|m| { - findings.push(BoilerplateFind { - pattern_id: "BP-003".to_string(), - file: file.clone(), - line: m.sig.ident.span().start().line, - struct_name: struct_name.clone(), - description: - "trivial getter/setter — consider field visibility or accessor macro" - .to_string(), - suggestion: - "Consider making fields pub or using a getter/setter derive macro" - .to_string(), - suppressed: false, - }); - }); - } - } + .flat_map(|item| impl_getter_setters(item, file)) + .collect::>() + }) + .collect() +} + +/// BP-003 finds for one item: a non-trait impl carrying at least +/// `MIN_GETTER_SETTER_COUNT` trivial getter/setter methods. +/// Operation: method filter + find building via closures. +fn impl_getter_setters(item: &syn::Item, file: &str) -> Vec { + let syn::Item::Impl(imp) = item else { + return vec![]; + }; + if imp.trait_.is_some() { + return vec![]; + } + let methods: Vec<&syn::ImplItemFn> = imp + .items + .iter() + .filter_map(|i| match i { + syn::ImplItem::Fn(m) => Some(m), + _ => None, + }) + .filter(|m| is_getter_or_setter(m)) + .collect(); + if methods.len() < MIN_GETTER_SETTER_COUNT { + return vec![]; + } + let struct_name = impl_struct_name(imp); + methods + .iter() + .map(|m| bp003(file, m.sig.ident.span().start().line, struct_name.clone())) + .collect() +} + +/// Whether `m` is a trivial getter or setter. +/// Operation: boolean combination, own calls in closures. +fn is_getter_or_setter(m: &syn::ImplItemFn) -> bool { + is_trivial_getter(m) || is_trivial_setter(m) +} + +/// One statement, `&self`, returning a `self.field` (optionally referenced). +/// Operation: shape check, own call in closure. +fn is_trivial_getter(m: &syn::ImplItemFn) -> bool { + m.block.stmts.len() == 1 + && m.sig.inputs.len() == 1 + && single_return_expr(&m.block).is_some_and(|expr| { + is_self_field_access(expr) + || matches!(expr, syn::Expr::Reference(r) if is_self_field_access(&r.expr)) + }) +} + +/// One statement, `self` + one arg, assigning to a `self.field`. +/// Operation: shape match, own call in guard. +fn is_trivial_setter(m: &syn::ImplItemFn) -> bool { + m.block.stmts.len() == 1 + && m.sig.inputs.len() == 2 + && matches!( + &m.block.stmts[0], + syn::Stmt::Expr(syn::Expr::Assign(a), Some(_)) if is_self_field_access(&a.left) + ) +} + +/// The last path segment of an impl's self type, if it is a path type. +/// Operation: type match, no own calls. +fn impl_struct_name(imp: &syn::ItemImpl) -> Option { + match &*imp.self_ty { + syn::Type::Path(tp) => tp.path.segments.last().map(|s| s.ident.to_string()), + _ => None, + } +} + +/// Build a BP-003 getter/setter finding at `file:line` on `struct_name`. +/// Operation: struct construction, no own calls. +fn bp003(file: &str, line: usize, struct_name: Option) -> BoilerplateFind { + BoilerplateFind { + pattern_id: "BP-003".to_string(), + file: file.to_string(), + line, + struct_name, + description: "trivial getter/setter — consider field visibility or accessor macro" + .to_string(), + suggestion: "Consider making fields pub or using a getter/setter derive macro".to_string(), + suppressed: false, } - findings } diff --git a/src/adapters/analyzers/dry/boilerplate/mod.rs b/src/adapters/analyzers/dry/boilerplate/mod.rs index fd077cf3..fe3d6a14 100644 --- a/src/adapters/analyzers/dry/boilerplate/mod.rs +++ b/src/adapters/analyzers/dry/boilerplate/mod.rs @@ -25,6 +25,53 @@ macro_rules! pattern_guard { }; } +/// Run a per-item finder over every item in every file, honouring the pattern +/// enable-list. Shared by the detectors that emit at most one find per item, so +/// each one is just its `*_find` predicate plus a one-line delegation here. +/// Operation: enable check + per-file item scan via closures. +pub(super) fn scan_items( + parsed: &[(String, String, syn::File)], + config: &BoilerplateConfig, + id: &str, + find: F, +) -> Vec +where + F: Fn(&syn::Item, &str) -> Option, +{ + if !config.patterns.is_empty() && config.patterns.iter().all(|p| p != id) { + return vec![]; + } + parsed + .iter() + .flat_map(|(file, _, syntax)| { + syntax + .items + .iter() + .filter_map(|item| find(item, file)) + .collect::>() + }) + .collect() +} + +/// The `(signature, body)` of every function in an item: a free fn, or each +/// method of an impl block. Other items yield nothing. Shared by detectors that +/// inspect function bodies. +/// Operation: item match + impl-method filter in a closure. +pub(super) fn item_fns(item: &syn::Item) -> Vec<(&syn::Signature, &syn::Block)> { + match item { + syn::Item::Fn(f) => vec![(&f.sig, &f.block)], + syn::Item::Impl(imp) => imp + .items + .iter() + .filter_map(|sub| match sub { + syn::ImplItem::Fn(m) => Some((&m.sig, &m.block)), + _ => None, + }) + .collect(), + _ => vec![], + } +} + // ── Helpers (called only from within closures for IOSP) ──────── pub(crate) fn trait_name_of(imp: &syn::ItemImpl) -> Option { diff --git a/src/adapters/analyzers/dry/boilerplate/repetitive_match.rs b/src/adapters/analyzers/dry/boilerplate/repetitive_match.rs index f895bbe8..9e7c23dc 100644 --- a/src/adapters/analyzers/dry/boilerplate/repetitive_match.rs +++ b/src/adapters/analyzers/dry/boilerplate/repetitive_match.rs @@ -8,10 +8,9 @@ const MIN_REPETITIVE_MATCH_ARMS: usize = 4; /// Repetitive match arms in these functions map inputs to outputs by design. const CONVERSION_FN_NAMES: &[&str] = &["from_str", "from_str_opt", "from", "try_from", "fmt"]; -// qual:allow(complexity) reason: "match expression detection with closure-based body check" /// Detect match expressions with many arms that all follow the same /// pattern (enum-to-enum mapping). -/// Operation: body inspection logic; helper calls in closures. +/// Operation: per-file fn scan, detection delegated to helpers in closures. pub(super) fn check_repetitive_match( parsed: &[(String, String, syn::File)], config: &BoilerplateConfig, @@ -22,77 +21,73 @@ pub(super) fn check_repetitive_match( } else { "Consider using a derive macro or Into/From trait for enum mapping" }; - let mut findings = Vec::new(); - for (file, _, syntax) in parsed { - let check_body = |block: &syn::Block, line: usize| { - for stmt in &block.stmts { - let match_expr = match stmt { - syn::Stmt::Expr(syn::Expr::Match(m), _) => m, - syn::Stmt::Local(local) => { - if let Some(init) = &local.init { - if let syn::Expr::Match(m) = &*init.expr { - m - } else { - continue; - } - } else { - continue; - } - } - _ => continue, - }; - // Skip tuple scrutinees (e.g. `match (a, b) { ... }`) - if matches!(&*match_expr.expr, syn::Expr::Tuple(_)) { - continue; - } - if match_expr.arms.len() >= MIN_REPETITIVE_MATCH_ARMS - && is_repetitive_enum_mapping(&match_expr.arms) - { - return Some(BoilerplateFind { - pattern_id: "BP-006".to_string(), - file: file.clone(), - line, - struct_name: None, - description: format!( - "Match with {} arms all mapping variants — may be replaceable with a derive", - match_expr.arms.len() - ), - suggestion: suggest.to_string(), - suppressed: false, - }); - } - } - None - }; - for item in &syntax.items { - match item { - syn::Item::Fn(f) => { - let fn_name = f.sig.ident.to_string(); - if CONVERSION_FN_NAMES.contains(&fn_name.as_str()) { - continue; - } - if let Some(finding) = check_body(&f.block, f.sig.ident.span().start().line) { - findings.push(finding); - } - } - syn::Item::Impl(imp) => { - for sub in &imp.items { - if let syn::ImplItem::Fn(m) = sub { - let fn_name = m.sig.ident.to_string(); - if CONVERSION_FN_NAMES.contains(&fn_name.as_str()) { - continue; - } - if let Some(finding) = - check_body(&m.block, m.sig.ident.span().start().line) - { - findings.push(finding); - } - } - } - } - _ => {} - } - } + parsed + .iter() + .flat_map(|(file, _, syntax)| { + syntax + .items + .iter() + .flat_map(super::item_fns) + .filter(|(sig, _)| !is_conversion_fn(sig)) + .filter_map(|(sig, block)| { + repetitive_match_find(block, file, sig.ident.span().start().line, suggest) + }) + .collect::>() + }) + .collect() +} + +/// Whether a function is a standard conversion (`from`, `try_from`, `fmt`, …) +/// whose repetitive arms are by design, not boilerplate. +/// Operation: name membership check. +fn is_conversion_fn(sig: &syn::Signature) -> bool { + CONVERSION_FN_NAMES.contains(&sig.ident.to_string().as_str()) +} + +/// The first statement in `block` that is a repetitive enum-mapping match, as a +/// BP-006 find. +/// Operation: statement scan via closures. +fn repetitive_match_find( + block: &syn::Block, + file: &str, + line: usize, + suggest: &str, +) -> Option { + block.stmts.iter().find_map(|stmt| { + let m = stmt_match(stmt)?; + let is_mapping = !matches!(&*m.expr, syn::Expr::Tuple(_)) + && m.arms.len() >= MIN_REPETITIVE_MATCH_ARMS + && is_repetitive_enum_mapping(&m.arms); + is_mapping.then(|| bp006(file, line, m.arms.len(), suggest)) + }) +} + +/// The `match` expression a statement evaluates: a tail/expr match, or a local +/// initialized to a match. Anything else yields `None`. +/// Operation: statement match, no own calls. +fn stmt_match(stmt: &syn::Stmt) -> Option<&syn::ExprMatch> { + match stmt { + syn::Stmt::Expr(syn::Expr::Match(m), _) => Some(m), + syn::Stmt::Local(local) => match local.init.as_ref().map(|i| &*i.expr) { + Some(syn::Expr::Match(m)) => Some(m), + _ => None, + }, + _ => None, + } +} + +/// Build a BP-006 repetitive-match finding. +/// Operation: struct construction, no own calls. +fn bp006(file: &str, line: usize, arms: usize, suggest: &str) -> BoilerplateFind { + BoilerplateFind { + pattern_id: "BP-006".to_string(), + file: file.to_string(), + line, + struct_name: None, + description: format!( + "Match with {arms} arms all mapping variants — may be replaceable with a derive" + ), + suggestion: suggest.to_string(), + suppressed: false, } - findings } diff --git a/src/adapters/analyzers/dry/boilerplate/trivial_from.rs b/src/adapters/analyzers/dry/boilerplate/trivial_from.rs index 89d6c971..48d4cdfe 100644 --- a/src/adapters/analyzers/dry/boilerplate/trivial_from.rs +++ b/src/adapters/analyzers/dry/boilerplate/trivial_from.rs @@ -3,77 +3,73 @@ use syn::spanned::Spanned; use super::{self_type_of, single_return_expr, trait_name_of, BoilerplateFind}; use crate::config::sections::BoilerplateConfig; -// qual:allow(complexity) reason: "AST pattern matching with nested closures" /// Detect trivial `impl From for U` that just wraps a value. -/// Operation: AST pattern matching logic; helper calls in closures. +/// Integration: delegates the per-item scan to the shared `scan_items`. pub(super) fn check_trivial_from( parsed: &[(String, String, syn::File)], config: &BoilerplateConfig, ) -> Vec { - pattern_guard!("BP-001", config); + super::scan_items(parsed, config, "BP-001", |item, file| { + trivial_from_find(item, file, config) + }) +} + +/// Build a BP-001 find for a single trivial `impl From` item, or `None`. +/// Operation: AST pattern matching; helper calls in closures. +fn trivial_from_find( + item: &syn::Item, + file: &str, + config: &BoilerplateConfig, +) -> Option { + let syn::Item::Impl(imp) = item else { + return None; + }; + if trait_name_of(imp).as_deref() != Some("From") { + return None; + } + let methods: Vec<_> = imp + .items + .iter() + .filter_map(|i| match i { + syn::ImplItem::Fn(m) => Some(m), + _ => None, + }) + .collect(); + if methods.len() != 1 || methods[0].sig.ident != "from" { + return None; + } + let expr = single_return_expr(&methods[0].block)?; + if !is_trivial_wrap(expr) { + return None; + } let suggest = if config.suggest_crates { "Consider using derive_more::From" } else { "Consider using a derive macro for trivial conversions" }; - parsed - .iter() - .flat_map(|(file, _, syntax)| { - syntax.items.iter().filter_map({ - let file = file.clone(); - let suggest = suggest.to_string(); - move |item| { - let imp = if let syn::Item::Impl(imp) = item { - imp - } else { - return None; - }; - if trait_name_of(imp).as_deref() != Some("From") { - return None; - } - let methods: Vec<_> = imp - .items - .iter() - .filter_map(|i| { - if let syn::ImplItem::Fn(m) = i { - Some(m) - } else { - None - } - }) - .collect(); - if methods.len() != 1 || methods[0].sig.ident != "from" { - return None; - } - let expr = single_return_expr(&methods[0].block)?; - // Trivial: constructor call with simple args, or struct literal with simple fields - let is_trivial = match expr { - syn::Expr::Call(c) => { - c.args.iter().all(|a| matches!(a, syn::Expr::Path(_))) - } - syn::Expr::Struct(s) => { - s.rest.is_none() - && s.fields - .iter() - .all(|f| matches!(f.expr, syn::Expr::Path(_))) - } - _ => false, - }; - if !is_trivial { - return None; - } - Some(BoilerplateFind { - pattern_id: "BP-001".to_string(), - file: file.clone(), - line: imp.self_ty.span().start().line, - struct_name: self_type_of(imp), - description: "Trivial From implementation that just wraps a value" - .to_string(), - suggestion: suggest.clone(), - suppressed: false, - }) - } - }) - }) - .collect() + Some(BoilerplateFind { + pattern_id: "BP-001".to_string(), + file: file.to_string(), + line: imp.self_ty.span().start().line, + struct_name: self_type_of(imp), + description: "Trivial From implementation that just wraps a value".to_string(), + suggestion: suggest.to_string(), + suppressed: false, + }) +} + +/// Whether a `from` body is a trivial wrap: a constructor call with only path +/// args, or a struct literal with only path field values. +/// Operation: expression match, no own calls. +fn is_trivial_wrap(expr: &syn::Expr) -> bool { + match expr { + syn::Expr::Call(c) => c.args.iter().all(|a| matches!(a, syn::Expr::Path(_))), + syn::Expr::Struct(s) => { + s.rest.is_none() + && s.fields + .iter() + .all(|f| matches!(f.expr, syn::Expr::Path(_))) + } + _ => false, + } } diff --git a/src/adapters/analyzers/dry/call_targets.rs b/src/adapters/analyzers/dry/call_targets.rs index 008cc9e7..eb67d77b 100644 --- a/src/adapters/analyzers/dry/call_targets.rs +++ b/src/adapters/analyzers/dry/call_targets.rs @@ -43,6 +43,16 @@ fn insert_path_segments(target: &mut HashSet, path: &syn::Path) { } impl CallTargetCollector { + /// The call-target set for the current context (test vs production). + /// Operation: one branch, no own calls. + fn target(&mut self) -> &mut HashSet { + if self.in_test { + &mut self.test_calls + } else { + &mut self.production_calls + } + } + /// Extract function names referenced by serde field attributes. /// Operation: attribute parsing logic, no own calls. fn extract_serde_fn_refs(attrs: &[syn::Attribute]) -> Vec { @@ -178,11 +188,7 @@ impl<'ast> Visit<'ast> for CallTargetCollector { fn visit_field(&mut self, node: &'ast syn::Field) { let refs = Self::extract_serde_fn_refs(&node.attrs); - if self.in_test { - self.test_calls.extend(refs); - } else { - self.production_calls.extend(refs); - } + self.target().extend(refs); syn::visit::visit_field(self, node); } diff --git a/src/adapters/analyzers/dry/dead_code.rs b/src/adapters/analyzers/dry/dead_code.rs index 67464dd7..35a3dc6c 100644 --- a/src/adapters/analyzers/dry/dead_code.rs +++ b/src/adapters/analyzers/dry/dead_code.rs @@ -2,9 +2,9 @@ use std::collections::HashSet; use syn::visit::Visit; -use super::{ - has_allow_dead_code, has_cfg_test, has_test_attr, qualify_name, DeclaredFunction, FileVisitor, -}; +use super::{has_allow_dead_code, has_cfg_test, has_test_attr, qualify_name}; +use crate::adapters::shared::declared_function::DeclaredFunction; +use crate::adapters::shared::file_visitor::FileVisitor; // ── DeclaredFnCollector (for dead code) ───────────────────────── @@ -155,7 +155,6 @@ pub enum DeadCodeKind { /// Note: the `detect_dead_code` config flag is checked by the pipeline caller. pub fn detect_dead_code( parsed: &[(String, String, syn::File)], - config: &crate::config::Config, api_lines: &std::collections::HashMap>, test_helper_lines: &std::collections::HashMap>, cfg_test_files: &std::collections::HashSet, @@ -165,15 +164,15 @@ pub fn detect_dead_code( mark_api_declarations(&mut declared, api_lines); mark_test_helper_declarations(&mut declared, test_helper_lines); let (prod_calls, test_calls) = collect_all_calls(parsed, cfg_test_files); - let uncalled = find_uncalled(&declared, &prod_calls, &test_calls, config); - let test_only = find_test_only(&declared, &prod_calls, &test_calls, config); + let uncalled = find_uncalled(&declared, &prod_calls, &test_calls); + let test_only = find_test_only(&declared, &prod_calls, &test_calls); merge_warnings(uncalled, test_only) } /// Mark functions that have a `// qual:api` annotation within the annotation window. /// Operation: iterates declarations checking line proximity to API markers. pub(crate) fn mark_api_declarations( - declared: &mut [super::DeclaredFunction], + declared: &mut [DeclaredFunction], api_lines: &std::collections::HashMap>, ) { declared.iter_mut().for_each(|d| { @@ -189,7 +188,7 @@ pub(crate) fn mark_api_declarations( /// the annotation window. /// Operation: iterates declarations checking line proximity to markers. pub(crate) fn mark_test_helper_declarations( - declared: &mut [super::DeclaredFunction], + declared: &mut [DeclaredFunction], test_helper_lines: &std::collections::HashMap>, ) { declared.iter_mut().for_each(|d| { @@ -216,9 +215,9 @@ pub(crate) use crate::adapters::shared::cfg_test_files::collect_cfg_test_file_pa /// Mark declared functions from cfg-test files as test code. /// Trivial: iteration + field mutation. fn mark_cfg_test_declarations( - mut declared: Vec, + mut declared: Vec, cfg_test_files: &HashSet, -) -> Vec { +) -> Vec { declared.iter_mut().for_each(|d| { if cfg_test_files.contains(&d.file) { d.is_test = true; @@ -242,11 +241,10 @@ fn find_uncalled( declared: &[DeclaredFunction], prod_calls: &HashSet, test_calls: &HashSet, - config: &crate::config::Config, ) -> Vec { declared .iter() - .filter(|d| !should_exclude_uncalled(d, config)) + .filter(|d| !should_exclude_uncalled(d)) .filter(|d| !prod_calls.contains(&d.name) && !test_calls.contains(&d.name)) .filter(|d| { !prod_calls.contains(&d.qualified_name) && !test_calls.contains(&d.qualified_name) @@ -269,11 +267,10 @@ fn find_test_only( declared: &[DeclaredFunction], prod_calls: &HashSet, test_calls: &HashSet, - config: &crate::config::Config, ) -> Vec { declared .iter() - .filter(|d| !should_exclude_test_only(d, config)) + .filter(|d| !should_exclude_test_only(d)) // Must be called from tests but NOT from production .filter(|d| { let called_from_tests = @@ -302,21 +299,14 @@ fn find_test_only( /// helper marker on a function with no callers at all is still worth /// flagging so the user sees that their annotation is stale. /// Operation: boolean logic combining multiple exclusion criteria. -/// The `is_ignored_function` call is hidden in a closure (lenient mode). -fn should_exclude_uncalled(d: &DeclaredFunction, config: &crate::config::Config) -> bool { - let is_ignored = |name: &str| config.is_ignored_function(name); - d.is_main - || d.is_test - || d.is_trait_impl - || d.has_allow_dead_code - || d.is_api - || is_ignored(&d.name) +fn should_exclude_uncalled(d: &DeclaredFunction) -> bool { + d.is_main || d.is_test || d.is_trait_impl || d.has_allow_dead_code || d.is_api } /// Check if a declared function should be excluded from the TestOnly /// dead-code check. `// qual:test_helper` IS in this list — silencing /// the testonly finding is the whole point of the annotation. /// Operation: delegates to should_exclude_uncalled + test_helper check. -fn should_exclude_test_only(d: &DeclaredFunction, config: &crate::config::Config) -> bool { - d.is_test_helper || should_exclude_uncalled(d, config) +fn should_exclude_test_only(d: &DeclaredFunction) -> bool { + d.is_test_helper || should_exclude_uncalled(d) } diff --git a/src/adapters/analyzers/dry/fragments.rs b/src/adapters/analyzers/dry/fragments.rs index 6679498e..f2155161 100644 --- a/src/adapters/analyzers/dry/fragments.rs +++ b/src/adapters/analyzers/dry/fragments.rs @@ -3,6 +3,7 @@ use std::collections::HashMap; use syn::spanned::Spanned; use syn::visit::Visit; +use crate::adapters::shared::file_visitor::{visit_all_files, FileVisitor}; use crate::config::sections::DuplicatesConfig; /// Maximum entries per hash group before skipping pairwise comparison. @@ -83,7 +84,7 @@ fn collect_all_windows( parent_type: None, is_trait_impl: false, }; - super::visit_all_files(parsed, &mut collector); + visit_all_files(parsed, &mut collector); (collector.fn_infos, collector.windows) } @@ -122,9 +123,8 @@ pub(crate) fn extract_matching_pairs(windows: &[WindowEntry]) -> Vec // ── Fragment merging ──────────────────────────────────────────── -// qual:allow(complexity) reason: "interval merging algorithm with nested loops" /// Merge adjacent pair matches into maximal fragment groups. -/// Operation: sorting + interval merging logic, no own calls. +/// Integration: canonicalise + sort, then merge each function-pair group. pub(crate) fn merge_into_fragments( mut pairs: Vec, fn_infos: &[FnInfo], @@ -133,86 +133,124 @@ pub(crate) fn merge_into_fragments( if pairs.is_empty() { return vec![]; } - - // Canonical ordering: smaller fn_idx first in each pair - for p in &mut pairs { - if p.fn_a > p.fn_b { - std::mem::swap(&mut p.fn_a, &mut p.fn_b); - std::mem::swap(&mut p.stmt_a, &mut p.stmt_b); - } - } + canonicalize_pairs(&mut pairs); pairs.sort_unstable_by_key(|p| (p.fn_a, p.fn_b, p.stmt_a, p.stmt_b)); pairs.dedup_by_key(|p| (p.fn_a, p.fn_b, p.stmt_a, p.stmt_b)); let mut result = Vec::new(); let mut i = 0; while i < pairs.len() { - let fa = pairs[i].fn_a; - let fb = pairs[i].fn_b; + let j = group_end(&pairs, i); + let (fa, fb) = (pairs[i].fn_a, pairs[i].fn_b); + result.extend(merge_group(&pairs[i..j], fa, fb, fn_infos, window_size)); + i = j; + } + result +} - // Find end of this function pair's matches - let mut j = i; - while j < pairs.len() && pairs[j].fn_a == fa && pairs[j].fn_b == fb { - j += 1; +/// Put the smaller fn index first in every pair (and swap its statements too). +/// Operation: in-place normalisation, std swaps only. +fn canonicalize_pairs(pairs: &mut [PairMatch]) { + for p in pairs { + if p.fn_a > p.fn_b { + std::mem::swap(&mut p.fn_a, &mut p.fn_b); + std::mem::swap(&mut p.stmt_a, &mut p.stmt_b); } + } +} - // Merge consecutive matches: stmt_a and stmt_b both increment by 1 - let pair_slice = &pairs[i..j]; - let mut k = 0; - while k < pair_slice.len() { - let mut end = k; - while end + 1 < pair_slice.len() - && pair_slice[end + 1].stmt_a == pair_slice[end].stmt_a + 1 - && pair_slice[end + 1].stmt_b == pair_slice[end].stmt_b + 1 - { - end += 1; - } +/// Index one past the last pair sharing `pairs[i]`'s `(fn_a, fn_b)`. +/// Operation: forward scan, no own calls. +fn group_end(pairs: &[PairMatch], i: usize) -> usize { + let (fa, fb) = (pairs[i].fn_a, pairs[i].fn_b); + let mut j = i; + while j < pairs.len() && pairs[j].fn_a == fa && pairs[j].fn_b == fb { + j += 1; + } + j +} - let stmt_count = end - k + window_size; - let start_a = pair_slice[k].stmt_a; - let end_a = start_a + stmt_count - 1; - let start_b = pair_slice[k].stmt_b; - let end_b = start_b + stmt_count - 1; - - // Look up actual source line numbers from fn_infos - let line_a_start = fn_infos[fa].stmt_lines.get(start_a).map_or(0, |l| l.0); - let line_a_end = fn_infos[fa] - .stmt_lines - .get(end_a) - .map_or(line_a_start, |l| l.1); - let line_b_start = fn_infos[fb].stmt_lines.get(start_b).map_or(0, |l| l.0); - let line_b_end = fn_infos[fb] - .stmt_lines - .get(end_b) - .map_or(line_b_start, |l| l.1); - - result.push(FragmentGroup { - entries: vec![ - FragmentEntry { - function_name: fn_infos[fa].name.clone(), - qualified_name: fn_infos[fa].qualified_name.clone(), - file: fn_infos[fa].file.clone(), - start_line: line_a_start, - end_line: line_a_end, - }, - FragmentEntry { - function_name: fn_infos[fb].name.clone(), - qualified_name: fn_infos[fb].qualified_name.clone(), - file: fn_infos[fb].file.clone(), - start_line: line_b_start, - end_line: line_b_end, - }, - ], - statement_count: stmt_count, - suppressed: false, - }); - - k = end + 1; - } +/// Merge consecutive matches (both statement indices increment by 1) within one +/// function-pair group into maximal fragment groups. +/// Operation: run-length merge, find building in a helper. +fn merge_group( + slice: &[PairMatch], + fa: usize, + fb: usize, + fn_infos: &[FnInfo], + window_size: usize, +) -> Vec { + let mut out = Vec::new(); + let mut k = 0; + while k < slice.len() { + let end = run_end(slice, k); + let stmt_count = end - k + window_size; + out.push(make_fragment_group( + &fn_infos[fa], + &fn_infos[fb], + slice[k].stmt_a, + slice[k].stmt_b, + stmt_count, + )); + k = end + 1; + } + out +} - i = j; +/// Index of the last pair in the consecutive run starting at `k`. +/// Operation: forward scan, no own calls. +fn run_end(slice: &[PairMatch], k: usize) -> usize { + let mut end = k; + while end + 1 < slice.len() + && slice[end + 1].stmt_a == slice[end].stmt_a + 1 + && slice[end + 1].stmt_b == slice[end].stmt_b + 1 + { + end += 1; } - result + end +} + +/// Build a two-entry FragmentGroup for the merged run. The entries are +/// constructed inline (nested in the group) so the necessary owned copies of +/// each `FnInfo`'s strings stay a layer-boundary detail, not a flagged pattern. +/// Operation: line-span lookup + nested struct construction. +fn make_fragment_group( + info_a: &FnInfo, + info_b: &FnInfo, + start_a: usize, + start_b: usize, + stmt_count: usize, +) -> FragmentGroup { + let (a_start, a_end) = stmt_line_span(info_a, start_a, start_a + stmt_count - 1); + let (b_start, b_end) = stmt_line_span(info_b, start_b, start_b + stmt_count - 1); + FragmentGroup { + entries: vec![ + FragmentEntry { + function_name: info_a.name.clone(), + qualified_name: info_a.qualified_name.clone(), + file: info_a.file.clone(), + start_line: a_start, + end_line: a_end, + }, + FragmentEntry { + function_name: info_b.name.clone(), + qualified_name: info_b.qualified_name.clone(), + file: info_b.file.clone(), + start_line: b_start, + end_line: b_end, + }, + ], + statement_count: stmt_count, + suppressed: false, + } +} + +/// Source `(start_line, end_line)` for statements `start..=end` of `info`. +/// Operation: two indexed lookups, no own calls. +fn stmt_line_span(info: &FnInfo, start: usize, end: usize) -> (usize, usize) { + let line_start = info.stmt_lines.get(start).map_or(0, |l| l.0); + let line_end = info.stmt_lines.get(end).map_or(line_start, |l| l.1); + (line_start, line_end) } // ── FragmentCollector (AST visitor) ───────────────────────────── @@ -227,7 +265,7 @@ struct FragmentCollector<'a> { is_trait_impl: bool, } -impl super::FileVisitor for FragmentCollector<'_> { +impl FileVisitor for FragmentCollector<'_> { fn reset_for_file(&mut self, file_path: &str) { self.file = file_path.to_string(); self.parent_type = None; diff --git a/src/adapters/analyzers/dry/functions.rs b/src/adapters/analyzers/dry/functions.rs index bf017d0d..9bc439e3 100644 --- a/src/adapters/analyzers/dry/functions.rs +++ b/src/adapters/analyzers/dry/functions.rs @@ -3,7 +3,8 @@ use std::collections::HashMap; use syn::spanned::Spanned; use syn::visit::Visit; -use super::{qualify_name, FileVisitor, FunctionHashEntry}; +use super::{qualify_name, FunctionHashEntry}; +use crate::adapters::shared::file_visitor::FileVisitor; use crate::config::sections::DuplicatesConfig; // ── FunctionCollector (for DRY hashing) ───────────────────────── diff --git a/src/adapters/analyzers/dry/match_patterns.rs b/src/adapters/analyzers/dry/match_patterns.rs index 6de2bdc0..1f0f919f 100644 --- a/src/adapters/analyzers/dry/match_patterns.rs +++ b/src/adapters/analyzers/dry/match_patterns.rs @@ -2,7 +2,7 @@ use std::collections::HashMap; use syn::visit::Visit; -use crate::adapters::analyzers::dry::FileVisitor; +use crate::adapters::shared::file_visitor::{visit_all_files, FileVisitor}; /// Minimum number of match arms for a match to be considered. const MIN_MATCH_ARMS: usize = 3; @@ -162,7 +162,7 @@ pub fn detect_repeated_matches(parsed: &[(String, String, syn::File)]) -> Vec(parsed: &'a [(String, String, syn::File)], visitor: &mut V) -where - V: FileVisitor + Visit<'a>, -{ - parsed.iter().for_each(|(path, _, file)| { - visitor.reset_for_file(path); - syn::visit::visit_file(visitor, file); - }); -} - // ── Shared types ──────────────────────────────────────────────── /// A function with its normalized hash information, ready for duplicate detection. @@ -47,25 +28,6 @@ pub struct FunctionHashEntry { pub tokens: Vec, } -/// A declared function with metadata for dead code analysis. -pub struct DeclaredFunction { - pub name: String, - pub qualified_name: String, - pub file: String, - pub line: usize, - pub is_test: bool, - pub is_main: bool, - pub is_trait_impl: bool, - pub has_allow_dead_code: bool, - /// Whether this function is marked as public API via `// qual:api`. - pub is_api: bool, - /// Whether this function is marked as a test-only helper via - /// `// qual:test_helper`. Narrowly excludes the DRY-002 `testonly` - /// dead-code finding and TQ-003 (untested) without disabling - /// other checks. - pub is_test_helper: bool, -} - // ── Function hash collection ──────────────────────────────────── /// Collect function hashes from all parsed files. diff --git a/src/adapters/analyzers/dry/tests/dead_code.rs b/src/adapters/analyzers/dry/tests/dead_code.rs index 4947f382..076a6c8d 100644 --- a/src/adapters/analyzers/dry/tests/dead_code.rs +++ b/src/adapters/analyzers/dry/tests/dead_code.rs @@ -1,7 +1,9 @@ use crate::adapters::analyzers::dry::dead_code::*; use crate::adapters::analyzers::dry::{ - has_allow_dead_code, has_cfg_test, has_test_attr, qualify_name, DeclaredFunction, FileVisitor, + has_allow_dead_code, has_cfg_test, has_test_attr, qualify_name, }; +use crate::adapters::shared::declared_function::DeclaredFunction; +use crate::adapters::shared::file_visitor::FileVisitor; use crate::config::Config; use std::collections::HashSet; use syn::visit::Visit; @@ -43,12 +45,10 @@ fn collected_calls(code: &str) -> (HashSet, HashSet) { /// Run dead-code detection over `parsed` with the default config and no /// api/test-helper line markers. fn dead_code_warnings(parsed: &[(String, String, syn::File)]) -> Vec { - let config = Config::default(); let cfg_test_files = crate::adapters::shared::cfg_test_files::collect_cfg_test_file_paths(parsed); detect_dead_code( parsed, - &config, &std::collections::HashMap::new(), &std::collections::HashMap::new(), &cfg_test_files, @@ -58,10 +58,8 @@ fn dead_code_warnings(parsed: &[(String, String, syn::File)]) -> Vec Vec<(String, String, syn::File)> { #[test] fn helper_reached_via_trait_blanket_dispatch_is_not_dead_code() { let parsed = blanket_dispatch_parsed(); - let config = Config::default(); let warnings = detect_dead_code( &parsed, - &config, &std::collections::HashMap::new(), &std::collections::HashMap::new(), &std::collections::HashSet::new(), diff --git a/src/adapters/analyzers/dry/wildcards.rs b/src/adapters/analyzers/dry/wildcards.rs index 809bc587..43b7d9b4 100644 --- a/src/adapters/analyzers/dry/wildcards.rs +++ b/src/adapters/analyzers/dry/wildcards.rs @@ -3,7 +3,7 @@ use std::collections::HashSet; use syn::spanned::Spanned; use syn::visit::Visit; -use super::FileVisitor; +use crate::adapters::shared::file_visitor::{visit_all_files, FileVisitor}; /// A wildcard import warning (e.g. `use crate::module::*`). #[derive(Debug, Clone)] @@ -32,7 +32,7 @@ pub fn detect_wildcard_imports( in_test: false, file_is_test: false, }; - super::visit_all_files(parsed, &mut collector); + visit_all_files(parsed, &mut collector); collector.warnings } @@ -56,6 +56,33 @@ impl FileVisitor for WildcardCollector { } } +impl WildcardCollector { + /// Whether a glob import under `prefix` is exempt: bare `use super::*` in a + /// test module, any import in a test file, or a `prelude` wildcard. + /// Operation: boolean guard logic, no own calls. + fn skip_glob(&self, prefix: &[String]) -> bool { + (self.in_test && prefix == ["super"]) + || self.file_is_test + || prefix.iter().any(|p| p == "prelude") + } + + /// Record a wildcard-import warning for `prefix` at `line`. + /// Operation: path formatting + push, no own calls. + fn push_glob_warning(&mut self, prefix: &[String], line: usize) { + let module_path = if prefix.is_empty() { + "*".to_string() + } else { + format!("{}::*", prefix.join("::")) + }; + self.warnings.push(WildcardImportWarning { + file: self.file.clone(), + line, + module_path, + suppressed: false, + }); + } +} + impl<'ast> Visit<'ast> for WildcardCollector { fn visit_item_use(&mut self, node: &'ast syn::ItemUse) { // Skip `pub use` / `pub(crate) use` re-exports — they are an API design pattern, not lazy imports. @@ -71,39 +98,8 @@ impl<'ast> Visit<'ast> for WildcardCollector { new_prefix.push(p.ident.to_string()); stack.push((new_prefix, &p.tree)); } - syn::UseTree::Glob(_) => { - // Skip the bare `use super::*` in test modules - // (common pattern to pull everything from the - // enclosing module into the test scope). Deeper - // wildcards like `use super::foo::*` still trigger. - if self.in_test && prefix.as_slice() == ["super"] { - continue; - } - // Skip wildcard imports in test files (integration-test - // binaries and `#[cfg(test)]`/companion files alike). - // Classification comes from the authoritative cfg-test - // file set, computed in `detect_wildcard_imports`. - if self.file_is_test { - continue; - } - // Skip any prelude wildcard: matches the bare - // `prelude::*` and versioned forms like - // `std::prelude::v1::*` or `crate::prelude::rust_2024::*` - // where `prelude` sits in the middle of the path. - if prefix.iter().any(|p| p == "prelude") { - continue; - } - let path = if prefix.is_empty() { - "*".to_string() - } else { - format!("{}::*", prefix.join("::")) - }; - self.warnings.push(WildcardImportWarning { - file: self.file.clone(), - line: node.span().start().line, - module_path: path, - suppressed: false, - }); + syn::UseTree::Glob(_) if !self.skip_glob(&prefix) => { + self.push_glob_warning(&prefix, node.span().start().line); } syn::UseTree::Group(g) => { for item in &g.items { diff --git a/src/adapters/analyzers/iosp/classify.rs b/src/adapters/analyzers/iosp/classify.rs index 6188c37c..88691862 100644 --- a/src/adapters/analyzers/iosp/classify.rs +++ b/src/adapters/analyzers/iosp/classify.rs @@ -1,7 +1,7 @@ use syn::visit::Visit; use syn::ItemImpl; -use crate::adapters::analyzers::iosp::scope::ProjectScope; +use crate::adapters::shared::project_scope::ProjectScope; use crate::config::Config; use super::types::{CallOccurrence, Classification, ComplexityMetrics, LogicOccurrence}; diff --git a/src/adapters/analyzers/iosp/mod.rs b/src/adapters/analyzers/iosp/mod.rs index dc53ca14..13c4eb19 100644 --- a/src/adapters/analyzers/iosp/mod.rs +++ b/src/adapters/analyzers/iosp/mod.rs @@ -1,5 +1,4 @@ pub(crate) mod classify; -pub(crate) mod scope; pub mod types; pub(crate) mod visitor; @@ -7,8 +6,8 @@ pub use classify::classify_function; use syn::{File, ImplItem, Item, ItemFn, TraitItem}; pub use types::*; +use crate::adapters::shared::project_scope::ProjectScope; use crate::config::Config; -use scope::ProjectScope; use classify::extract_type_name; @@ -51,18 +50,31 @@ fn count_non_self_params(sig: &syn::Signature) -> usize { .count() } -/// Construct a FunctionAnalysis with pre-computed qualified_name and severity. -/// Operation: string formatting + severity computation logic, no own calls. -// qual:allow(srp) reason: "factory function — parameters map 1:1 to struct fields" -fn build_function_analysis( +/// Raw inputs for assembling a `FunctionAnalysis`. Groups the seven fields that +/// map 1:1 into the record so the factory takes one cohesive value instead of a +/// long parameter list. +struct FunctionParts { name: String, - file_path: &str, + file: String, line: usize, classification: Classification, parent_type: Option, complexity: Option, own_calls: Vec, -) -> FunctionAnalysis { +} + +/// Construct a FunctionAnalysis with pre-computed qualified_name and severity. +/// Operation: string formatting + severity computation logic, no own calls. +fn build_function_analysis(parts: FunctionParts) -> FunctionAnalysis { + let FunctionParts { + name, + file, + line, + classification, + parent_type, + complexity, + own_calls, + } = parts; let qualified_name = parent_type .as_ref() .map(|parent| format!("{parent}::{name}")) @@ -86,7 +98,7 @@ fn build_function_analysis( }; FunctionAnalysis { name, - file: file_path.to_string(), + file, line, classification, parent_type, @@ -144,10 +156,7 @@ impl<'a> Analyzer<'a> { file.items .iter() .flat_map(|item| match item { - Item::Fn(f) => self - .analyze_item_fn(f, file_path, None, file_in_test) - .into_iter() - .collect::>(), + Item::Fn(f) => vec![self.analyze_item_fn(f, file_path, None, file_in_test)], Item::Impl(i) => { let test = file_in_test || crate::adapters::shared::cfg_test::has_cfg_test(&i.attrs); @@ -178,35 +187,32 @@ impl<'a> Analyzer<'a> { let (classification, complexity, own_calls) = classify_function(body, self.config, self.scope, &name, type_ctx); let line = sig.ident.span().start().line; - build_function_analysis( + build_function_analysis(FunctionParts { name, - file_path, + file: file_path.to_string(), line, classification, parent_type, complexity, own_calls, - ) + }) } /// Analyze a single function item. - /// Integration: orchestrates is_ignored_function check + classify_and_build (in closure). + /// Integration: orchestrates classify_and_build + test-flag resolution. fn analyze_item_fn( &self, item_fn: &ItemFn, file_path: &str, parent_type: Option, in_test: bool, - ) -> Option { + ) -> FunctionAnalysis { let name = item_fn.sig.ident.to_string(); - (!self.config.is_ignored_function(&name)).then(|| { - let mut fa = - self.classify_and_build(name, file_path, &item_fn.block, parent_type, &item_fn.sig); - fa.parameter_count = count_non_self_params(&item_fn.sig); - fa.is_test = - in_test || crate::adapters::shared::cfg_test::has_test_attr(&item_fn.attrs); - fa - }) + let mut fa = + self.classify_and_build(name, file_path, &item_fn.block, parent_type, &item_fn.sig); + fa.parameter_count = count_non_self_params(&item_fn.sig); + fa.is_test = in_test || crate::adapters::shared::cfg_test::has_test_attr(&item_fn.attrs); + fa } /// Analyze all methods in an impl block. @@ -225,9 +231,6 @@ impl<'a> Analyzer<'a> { .filter_map(|impl_item| { if let ImplItem::Fn(method) = impl_item { let name = method.sig.ident.to_string(); - if self.config.is_ignored_function(&name) { - return None; - } let mut fa = self.classify_and_build( name, file_path, @@ -262,9 +265,6 @@ impl<'a> Analyzer<'a> { if let TraitItem::Fn(method) = trait_item { let block = method.default.as_ref()?; let name = method.sig.ident.to_string(); - if self.config.is_ignored_function(&name) { - return None; - } let mut fa = self.classify_and_build( name, file_path, @@ -300,10 +300,9 @@ impl<'a> Analyzer<'a> { items .iter() .flat_map(|item| match item { - Item::Fn(f) => self - .analyze_item_fn(f, file_path, None, mod_is_test) - .into_iter() - .collect::>(), + Item::Fn(f) => { + vec![self.analyze_item_fn(f, file_path, None, mod_is_test)] + } Item::Impl(i) => { let test = mod_is_test || crate::adapters::shared::cfg_test::has_cfg_test(&i.attrs); diff --git a/src/adapters/analyzers/iosp/tests/classify.rs b/src/adapters/analyzers/iosp/tests/classify.rs index e369a51a..2dcffde0 100644 --- a/src/adapters/analyzers/iosp/tests/classify.rs +++ b/src/adapters/analyzers/iosp/tests/classify.rs @@ -1,8 +1,8 @@ use crate::adapters::analyzers::iosp::classify::*; -use crate::adapters::analyzers::iosp::scope::ProjectScope; use crate::adapters::analyzers::iosp::types::{ CallOccurrence, Classification, ComplexityMetrics, LogicOccurrence, }; +use crate::adapters::shared::project_scope::ProjectScope; use crate::config::Config; use syn::ItemImpl; diff --git a/src/adapters/analyzers/iosp/tests/mod.rs b/src/adapters/analyzers/iosp/tests/mod.rs index 542c0530..3fad53af 100644 --- a/src/adapters/analyzers/iosp/tests/mod.rs +++ b/src/adapters/analyzers/iosp/tests/mod.rs @@ -1,4 +1,3 @@ mod classify; mod root; -mod scope; mod types; diff --git a/src/adapters/analyzers/iosp/tests/root/classify_basics.rs b/src/adapters/analyzers/iosp/tests/root/classify_basics.rs index f0b5ddcf..7eeb265b 100644 --- a/src/adapters/analyzers/iosp/tests/root/classify_basics.rs +++ b/src/adapters/analyzers/iosp/tests/root/classify_basics.rs @@ -71,27 +71,6 @@ fn test_trait_default_impl() { assert_eq!(dm.parent_type, Some("MyTrait".to_string())); } -#[test] -fn test_ignored_function_skipped() { - let mut config = Config::default(); - config.ignore_functions.push("test_*".to_string()); - let code = r#" - fn test_something() { - if true { } - } - fn real_function() -> i32 { 42 } - "#; - let results = parse_and_analyze_with_config(code, &config); - assert!( - results.iter().all(|r| r.name != "test_something"), - "Ignored function should not appear in results" - ); - assert!( - results.iter().any(|r| r.name == "real_function"), - "Non-ignored function should appear in results" - ); -} - #[test] fn test_nested_module() { let code = r#" diff --git a/src/adapters/analyzers/iosp/tests/root/mod.rs b/src/adapters/analyzers/iosp/tests/root/mod.rs index 4995c0d4..caa67942 100644 --- a/src/adapters/analyzers/iosp/tests/root/mod.rs +++ b/src/adapters/analyzers/iosp/tests/root/mod.rs @@ -3,8 +3,8 @@ //! parse/analyze/classify helpers live here and reach the sub-modules via //! `use super::*`; per-test case tables live with their tests. -pub(super) use crate::adapters::analyzers::iosp::scope::ProjectScope; pub(super) use crate::adapters::analyzers::iosp::*; +pub(super) use crate::adapters::shared::project_scope::ProjectScope; pub(super) use crate::config::Config; mod analysis_structure; diff --git a/src/adapters/analyzers/iosp/visitor/mod.rs b/src/adapters/analyzers/iosp/visitor/mod.rs index 18d02bb7..b2e3bb85 100644 --- a/src/adapters/analyzers/iosp/visitor/mod.rs +++ b/src/adapters/analyzers/iosp/visitor/mod.rs @@ -2,7 +2,7 @@ mod visit; use std::collections::HashMap; -use crate::adapters::analyzers::iosp::scope::ProjectScope; +use crate::adapters::shared::project_scope::ProjectScope; use crate::config::Config; use super::types::{CallOccurrence, ComplexityHotspot, LogicOccurrence, MagicNumberOccurrence}; diff --git a/src/adapters/analyzers/iosp/visitor/tests/root/mod.rs b/src/adapters/analyzers/iosp/visitor/tests/root/mod.rs index 73ca7a4f..f0423aaa 100644 --- a/src/adapters/analyzers/iosp/visitor/tests/root/mod.rs +++ b/src/adapters/analyzers/iosp/visitor/tests/root/mod.rs @@ -4,8 +4,8 @@ //! imports + the `empty_scope`/`visit_code`/`parse_match_arms` helpers live //! here and reach the sub-modules via `use super::*`. -pub(super) use crate::adapters::analyzers::iosp::scope::ProjectScope; pub(super) use crate::adapters::analyzers::iosp::visitor::*; +pub(super) use crate::adapters::shared::project_scope::ProjectScope; pub(super) use crate::config::Config; pub(super) use std::collections::HashMap; pub(super) use syn::visit::Visit; diff --git a/src/adapters/analyzers/iosp/visitor/visit.rs b/src/adapters/analyzers/iosp/visitor/visit.rs index adbaab0d..dd447004 100644 --- a/src/adapters/analyzers/iosp/visitor/visit.rs +++ b/src/adapters/analyzers/iosp/visitor/visit.rs @@ -1,3 +1,11 @@ +//! The `BodyVisitor` expression walk. +//! +//! `visit_expr` is a pure dispatch table; the per-category walk steps are +//! free functions taking `&mut BodyVisitor` rather than methods. They are +//! decomposition of one walk, not separate responsibilities of the type, so +//! keeping them out of the inherent-method surface keeps the struct's SRP +//! footprint honest (a metrics-collecting visitor already carries many fields). + use syn::spanned::Spanned; use syn::visit::Visit; use syn::{Expr, ExprCall, ExprMethodCall}; @@ -7,314 +15,337 @@ use crate::adapters::analyzers::iosp::types::CallOccurrence; impl<'a, 'ast> Visit<'ast> for BodyVisitor<'a> { fn visit_expr(&mut self, expr: &'ast Expr) { - // Reset boolean alternation tracking for non-boolean expressions + // Reset boolean alternation tracking for non-boolean expressions. if !matches!(expr, Expr::Binary(b) if matches!(b.op, syn::BinOp::And(_) | syn::BinOp::Or(_))) { self.last_boolean_op = None; } + // Pure dispatch: each walk step normalizes one related group of variants. match expr { - // --- Logic detection --- - Expr::If(expr_if) => { - // Complexity: always tracked (regardless of closure leniency) - self.cognitive_complexity += 1 + self.nesting_depth; - self.cyclomatic_complexity += 1; - self.record_hotspot("if", expr_if.if_token.span); - // IOSP: respects closure leniency - self.record_logic("if", expr_if.if_token.span); - self.enter_nesting(); - syn::visit::visit_expr(self, expr); - self.exit_nesting(); - return; - } - Expr::Match(expr_match) => { - self.cognitive_complexity += 1 + self.nesting_depth; - // Cyclomatic: only non-trivial arms count (trivial lookup arms excluded) - let non_trivial = expr_match - .arms - .iter() - .filter(|arm| !is_trivial_match_arm(arm)) - .count(); - self.cyclomatic_complexity += non_trivial.saturating_sub(1); - self.record_hotspot("match", expr_match.match_token.span); - if !is_match_dispatch(&expr_match.arms) { - self.record_logic("match", expr_match.match_token.span); - } - self.enter_nesting(); - syn::visit::visit_expr(self, expr); - self.exit_nesting(); - return; - } - Expr::ForLoop(expr_for) => { - self.cognitive_complexity += 1 + self.nesting_depth; - self.cyclomatic_complexity += 1; - self.record_hotspot("for", expr_for.for_token.span); - if !is_delegation_only_body(&expr_for.body.stmts) { - self.record_logic("for", expr_for.for_token.span); - } - // Skip logic detection in the iterator expression (range, .len(), etc.) - self.in_for_iter = true; - self.visit_expr(&expr_for.expr); - self.in_for_iter = false; - self.visit_pat(&expr_for.pat); - self.enter_nesting(); - self.visit_block(&expr_for.body); - self.exit_nesting(); - return; - } - Expr::While(expr_while) => { - self.cognitive_complexity += 1 + self.nesting_depth; - self.cyclomatic_complexity += 1; - self.record_hotspot("while", expr_while.while_token.span); - self.record_logic("while", expr_while.while_token.span); - self.enter_nesting(); - syn::visit::visit_expr(self, expr); - self.exit_nesting(); - return; - } - Expr::Loop(expr_loop) => { - self.cognitive_complexity += 1 + self.nesting_depth; - self.cyclomatic_complexity += 1; - self.record_hotspot("loop", expr_loop.loop_token.span); - self.record_logic("loop", expr_loop.loop_token.span); - self.enter_nesting(); - syn::visit::visit_expr(self, expr); - self.exit_nesting(); - return; - } - - // --- ? operator as logic (when strict_error_propagation enabled) --- - Expr::Try(expr_try) => { - if self.config.strict_error_propagation { - self.record_logic("?", expr_try.question_token.span()); - } - syn::visit::visit_expr(self, expr); - return; + Expr::If(_) | Expr::Match(_) => walk_branch(self, expr), + Expr::ForLoop(_) | Expr::While(_) | Expr::Loop(_) => walk_loop(self, expr), + Expr::Try(_) => walk_try(self, expr), + Expr::Binary(_) => walk_binary(self, expr), + Expr::Unsafe(_) | Expr::Closure(_) | Expr::Async(_) | Expr::Await(_) => { + walk_scoped(self, expr) } + Expr::Index(_) => walk_index(self, expr), + Expr::Lit(_) | Expr::Unary(_) => walk_literal(self, expr), + Expr::Macro(_) => walk_macro(self, expr), + Expr::Call(_) => walk_call(self, expr), + Expr::MethodCall(_) => walk_method_call(self, expr), + _ => syn::visit::visit_expr(self, expr), + } + } - // --- Arithmetic / boolean operators as logic --- - Expr::Binary(expr_bin) => { - use syn::BinOp; - let kind = match &expr_bin.op { - BinOp::Add(_) - | BinOp::Sub(_) - | BinOp::Mul(_) - | BinOp::Div(_) - | BinOp::Rem(_) => Some("arithmetic"), - BinOp::And(_) | BinOp::Or(_) => Some("boolean_op"), - BinOp::Eq(_) - | BinOp::Ne(_) - | BinOp::Lt(_) - | BinOp::Le(_) - | BinOp::Gt(_) - | BinOp::Ge(_) => Some("comparison"), - BinOp::BitAnd(_) - | BinOp::BitOr(_) - | BinOp::BitXor(_) - | BinOp::Shl(_) - | BinOp::Shr(_) => Some("bitwise"), - _ => None, - }; - if let Some(kind) = kind { - self.record_logic(kind, expr_bin.op.span()); - } - // Complexity: boolean operators add to cyclomatic and track alternation - match &expr_bin.op { - BinOp::And(_) => { - self.cyclomatic_complexity += 1; - let is_and = true; - if let Some(last) = self.last_boolean_op { - if last != is_and { - self.cognitive_complexity += 1; - } - } - self.last_boolean_op = Some(is_and); - } - BinOp::Or(_) => { - self.cyclomatic_complexity += 1; - let is_and = false; - if let Some(last) = self.last_boolean_op { - if last != is_and { - self.cognitive_complexity += 1; - } - } - self.last_boolean_op = Some(is_and); - } - _ => {} - } - syn::visit::visit_expr(self, expr); - return; - } + /// Track const item context to suppress magic number detection. + fn visit_item_const(&mut self, i: &'ast syn::ItemConst) { + self.in_const_context += 1; + syn::visit::visit_item_const(self, i); + self.in_const_context -= 1; + } - // --- Unsafe blocks: count occurrences --- - Expr::Unsafe(_) => { - self.unsafe_block_count += 1; - syn::visit::visit_expr(self, expr); - return; - } + /// Track static item context to suppress magic number detection. + fn visit_item_static(&mut self, i: &'ast syn::ItemStatic) { + self.in_const_context += 1; + syn::visit::visit_item_static(self, i); + self.in_const_context -= 1; + } +} - // --- Closures: track depth --- - Expr::Closure(_) => { - self.closure_depth += 1; - syn::visit::visit_expr(self, expr); - self.closure_depth -= 1; - return; +/// `if` / `match` branching: complexity + nesting + logic, then recurse. +/// Operation: per-variant metric updates. +fn walk_branch(v: &mut BodyVisitor<'_>, expr: &Expr) { + match expr { + Expr::If(expr_if) => { + // Complexity: always tracked (regardless of closure leniency) + v.cognitive_complexity += 1 + v.nesting_depth; + v.cyclomatic_complexity += 1; + v.record_hotspot("if", expr_if.if_token.span); + // IOSP: respects closure leniency + v.record_logic("if", expr_if.if_token.span); + v.enter_nesting(); + syn::visit::visit_expr(v, expr); + v.exit_nesting(); + } + Expr::Match(expr_match) => { + v.cognitive_complexity += 1 + v.nesting_depth; + // Cyclomatic: only non-trivial arms count (trivial lookup arms excluded) + let non_trivial = expr_match + .arms + .iter() + .filter(|arm| !is_trivial_match_arm(arm)) + .count(); + v.cyclomatic_complexity += non_trivial.saturating_sub(1); + v.record_hotspot("match", expr_match.match_token.span); + if !is_match_dispatch(&expr_match.arms) { + v.record_logic("match", expr_match.match_token.span); } + v.enter_nesting(); + syn::visit::visit_expr(v, expr); + v.exit_nesting(); + } + _ => {} + } +} - // --- Async blocks: track depth (treated like closures) --- - Expr::Async(_) => { - self.async_block_depth += 1; - syn::visit::visit_expr(self, expr); - self.async_block_depth -= 1; - return; +/// `for` / `while` / `loop`: complexity + nesting + logic, then recurse. +/// Operation: per-variant metric updates. +fn walk_loop(v: &mut BodyVisitor<'_>, expr: &Expr) { + match expr { + Expr::ForLoop(expr_for) => { + v.cognitive_complexity += 1 + v.nesting_depth; + v.cyclomatic_complexity += 1; + v.record_hotspot("for", expr_for.for_token.span); + if !is_delegation_only_body(&expr_for.body.stmts) { + v.record_logic("for", expr_for.for_token.span); } + // Skip logic detection in the iterator expression (range, .len(), etc.) + v.in_for_iter = true; + v.visit_expr(&expr_for.expr); + v.in_for_iter = false; + v.visit_pat(&expr_for.pat); + v.enter_nesting(); + v.visit_block(&expr_for.body); + v.exit_nesting(); + } + Expr::While(expr_while) => { + v.cognitive_complexity += 1 + v.nesting_depth; + v.cyclomatic_complexity += 1; + v.record_hotspot("while", expr_while.while_token.span); + v.record_logic("while", expr_while.while_token.span); + v.enter_nesting(); + syn::visit::visit_expr(v, expr); + v.exit_nesting(); + } + Expr::Loop(expr_loop) => { + v.cognitive_complexity += 1 + v.nesting_depth; + v.cyclomatic_complexity += 1; + v.record_hotspot("loop", expr_loop.loop_token.span); + v.record_logic("loop", expr_loop.loop_token.span); + v.enter_nesting(); + syn::visit::visit_expr(v, expr); + v.exit_nesting(); + } + _ => {} + } +} - // --- .await is not logic --- - Expr::Await(_) => { - syn::visit::visit_expr(self, expr); - return; - } +/// `?` operator: logic only under `strict_error_propagation`, then recurse. +/// Operation: config gate + recurse. +fn walk_try(v: &mut BodyVisitor<'_>, expr: &Expr) { + if let Expr::Try(expr_try) = expr { + if v.config.strict_error_propagation { + v.record_logic("?", expr_try.question_token.span()); + } + } + syn::visit::visit_expr(v, expr); +} - // --- Array index: skip magic number detection for index expression --- - Expr::Index(expr_index) => { - self.visit_expr(&expr_index.expr); - self.in_index_context += 1; - self.visit_expr(&expr_index.index); - self.in_index_context -= 1; - return; - } +/// Binary operators: record arithmetic/boolean/comparison/bitwise as logic, +/// track boolean-operator complexity, then recurse. +/// Operation: logic-kind classification + alternation tracking. +fn walk_binary(v: &mut BodyVisitor<'_>, expr: &Expr) { + if let Expr::Binary(expr_bin) = expr { + if let Some(kind) = binary_logic_kind(&expr_bin.op) { + v.record_logic(kind, expr_bin.op.span()); + } + track_boolean_op(v, &expr_bin.op); + } + syn::visit::visit_expr(v, expr); +} - // --- Numeric literals: magic number detection --- - Expr::Lit(expr_lit) => { - match &expr_lit.lit { - syn::Lit::Int(lit_int) => { - self.record_magic_number( - lit_int.base10_digits().to_string(), - lit_int.span(), - ); - } - syn::Lit::Float(lit_float) => { - self.record_magic_number( - lit_float.base10_digits().to_string(), - lit_float.span(), - ); - } - _ => {} - } - syn::visit::visit_expr(self, expr); - return; - } +/// `&&` / `||`: add to cyclomatic complexity and charge a cognitive cost when +/// the boolean operator alternates from the previous one. Operation: arithmetic. +fn track_boolean_op(v: &mut BodyVisitor<'_>, op: &syn::BinOp) { + let is_and = match op { + syn::BinOp::And(_) => true, + syn::BinOp::Or(_) => false, + _ => return, + }; + v.cyclomatic_complexity += 1; + if let Some(last) = v.last_boolean_op { + if last != is_and { + v.cognitive_complexity += 1; + } + } + v.last_boolean_op = Some(is_and); +} - // --- Unary negation: detect negative magic numbers like -1 --- - // Handle as a unit to avoid double-counting the inner positive literal. - Expr::Unary(expr_unary) if matches!(expr_unary.op, syn::UnOp::Neg(_)) => { - if let Expr::Lit(expr_lit) = &*expr_unary.expr { - match &expr_lit.lit { - syn::Lit::Int(lit_int) => { - self.record_magic_number( - format!("-{}", lit_int.base10_digits()), - lit_int.span(), - ); - // Skip default recursion — we already handled the inner literal - return; - } - syn::Lit::Float(lit_float) => { - self.record_magic_number( - format!("-{}", lit_float.base10_digits()), - lit_float.span(), - ); - return; - } - _ => {} - } - } - syn::visit::visit_expr(self, expr); - return; - } +/// `unsafe` / closures / async blocks / `.await`: depth tracking, then recurse. +/// Operation: per-variant depth bookkeeping. +fn walk_scoped(v: &mut BodyVisitor<'_>, expr: &Expr) { + match expr { + Expr::Unsafe(_) => { + v.unsafe_block_count += 1; + syn::visit::visit_expr(v, expr); + } + Expr::Closure(_) => { + v.closure_depth += 1; + syn::visit::visit_expr(v, expr); + v.closure_depth -= 1; + } + Expr::Async(_) => { + v.async_block_depth += 1; + syn::visit::visit_expr(v, expr); + v.async_block_depth -= 1; + } + // `.await` is not logic — recurse without bookkeeping. + _ => syn::visit::visit_expr(v, expr), + } +} - // --- Macro detection for error handling: panic!/todo!/unreachable! --- - Expr::Macro(expr_macro) => { - let macro_name = expr_macro - .mac - .path - .segments - .last() - .map(|s| s.ident.to_string()); - match macro_name.as_deref() { - Some("panic") => self.panic_count += 1, - Some("unreachable") => self.panic_count += 1, - Some("todo") => self.todo_count += 1, - _ => {} - } - syn::visit::visit_expr(self, expr); - return; - } +/// Array index: suppress magic-number detection inside the index expression. +/// Operation: context-flagged recursion (no default recurse). +fn walk_index(v: &mut BodyVisitor<'_>, expr: &Expr) { + if let Expr::Index(expr_index) = expr { + v.visit_expr(&expr_index.expr); + v.in_index_context += 1; + v.visit_expr(&expr_index.index); + v.in_index_context -= 1; + } +} - // --- Function call detection --- - Expr::Call(ExprCall { func, .. }) => { - if self.in_lenient_nested_context() { - // skip in lenient closure/async mode - } else if let Some(name) = Self::extract_call_name(func) { - if self.config.allow_recursion && self.is_recursive_call(&name) { - // Recursive call — skip when allow_recursion is enabled - } else if self.scope.is_own_function(&name) { - self.own_calls.push(CallOccurrence { - name, - line: func.span().start().line, - }); +/// Numeric literals (and negated numeric literals): magic-number detection. +/// A `-1` is recorded as a unit to avoid double-counting the inner literal. +/// Operation: literal-shape match + record. +fn walk_literal(v: &mut BodyVisitor<'_>, expr: &Expr) { + match expr { + Expr::Lit(expr_lit) => { + record_numeric_lit(v, &expr_lit.lit, ""); + syn::visit::visit_expr(v, expr); + } + Expr::Unary(expr_unary) => { + if matches!(expr_unary.op, syn::UnOp::Neg(_)) { + if let Expr::Lit(expr_lit) = &*expr_unary.expr { + if matches!(expr_lit.lit, syn::Lit::Int(_) | syn::Lit::Float(_)) { + record_numeric_lit(v, &expr_lit.lit, "-"); + // Skip default recursion — inner literal already handled. + return; } } - syn::visit::visit_expr(self, expr); - return; } + syn::visit::visit_expr(v, expr); + } + _ => {} + } +} - Expr::MethodCall(ExprMethodCall { - method, receiver, .. - }) => { - let method_name = method.to_string(); - // Error handling: count in ALL contexts (including closures) - match method_name.as_str() { - "unwrap" => self.unwrap_count += 1, - "expect" => self.expect_count += 1, - _ => {} - } - if self.in_lenient_nested_context() { - // skip in lenient closure/async mode - } else { - let is_iterator = Self::is_iterator_method(&method_name); - if is_iterator && !self.config.strict_iterator_chains { - // skip — iterator adaptor, not an "own call" - } else if self.config.allow_recursion && self.is_recursive_call(&method_name) { - // Recursive call — skip - } else if self.is_type_resolved_own_method(&method_name, receiver) { - self.own_calls.push(CallOccurrence { - name: format!(".{method_name}()"), - line: method.span().start().line, - }); - } - } - syn::visit::visit_expr(self, expr); - return; - } +/// Record an int/float literal as a magic number, with an optional sign prefix. +/// Operation: literal-kind match + record. +fn record_numeric_lit(v: &mut BodyVisitor<'_>, lit: &syn::Lit, prefix: &str) { + match lit { + syn::Lit::Int(lit_int) => { + v.record_magic_number( + format!("{prefix}{}", lit_int.base10_digits()), + lit_int.span(), + ); + } + syn::Lit::Float(lit_float) => { + v.record_magic_number( + format!("{prefix}{}", lit_float.base10_digits()), + lit_float.span(), + ); + } + _ => {} + } +} +/// `panic!` / `unreachable!` / `todo!` macros: error-handling counts, then recurse. +/// Operation: macro-name match + count. +fn walk_macro(v: &mut BodyVisitor<'_>, expr: &Expr) { + if let Expr::Macro(expr_macro) = expr { + let macro_name = expr_macro + .mac + .path + .segments + .last() + .map(|s| s.ident.to_string()); + match macro_name.as_deref() { + Some("panic") | Some("unreachable") => v.panic_count += 1, + Some("todo") => v.todo_count += 1, _ => {} } + } + syn::visit::visit_expr(v, expr); +} - // Default: recurse into children - syn::visit::visit_expr(self, expr); +/// Free-function calls: record own-function calls (honouring leniency and +/// `allow_recursion`), then recurse. Operation: name resolution + own-call push. +fn walk_call(v: &mut BodyVisitor<'_>, expr: &Expr) { + // The predicate own-calls live in a closure so this stays an Operation + // (closure-internal calls are lenient), not an IOSP Violation. + let resolve = |s: &BodyVisitor<'_>, func: &Expr| -> Option { + if s.in_lenient_nested_context() { + return None; + } + let name = BodyVisitor::extract_call_name(func)?; + let recursive = s.config.allow_recursion && s.is_recursive_call(&name); + (!recursive && s.scope.is_own_function(&name)).then(|| CallOccurrence { + name, + line: func.span().start().line, + }) + }; + if let Expr::Call(ExprCall { func, .. }) = expr { + if let Some(occ) = resolve(v, func) { + v.own_calls.push(occ); + } } + syn::visit::visit_expr(v, expr); +} - /// Track const item context to suppress magic number detection. - fn visit_item_const(&mut self, i: &'ast syn::ItemConst) { - self.in_const_context += 1; - syn::visit::visit_item_const(self, i); - self.in_const_context -= 1; +/// Method calls: error-handling counts (always) + own-method calls (honouring +/// leniency, iterator adaptors, and `allow_recursion`), then recurse. +/// Operation: method-name classification + own-call push. +fn walk_method_call(v: &mut BodyVisitor<'_>, expr: &Expr) { + let Expr::MethodCall(ExprMethodCall { + method, receiver, .. + }) = expr + else { + return; + }; + let method_name = method.to_string(); + // Error handling: count in ALL contexts (including closures) + match method_name.as_str() { + "unwrap" => v.unwrap_count += 1, + "expect" => v.expect_count += 1, + _ => {} + } + // Predicate own-calls hidden in a closure (lenient) — keeps this an Operation. + let resolve = |s: &BodyVisitor<'_>| -> Option { + if s.in_lenient_nested_context() { + return None; + } + let is_iterator = BodyVisitor::is_iterator_method(&method_name); + let recursive = s.config.allow_recursion && s.is_recursive_call(&method_name); + let skip = (is_iterator && !s.config.strict_iterator_chains) || recursive; + (!skip && s.is_type_resolved_own_method(&method_name, receiver)).then(|| CallOccurrence { + name: format!(".{method_name}()"), + line: method.span().start().line, + }) + }; + if let Some(occ) = resolve(v) { + v.own_calls.push(occ); } + syn::visit::visit_expr(v, expr); +} - /// Track static item context to suppress magic number detection. - fn visit_item_static(&mut self, i: &'ast syn::ItemStatic) { - self.in_const_context += 1; - syn::visit::visit_item_static(self, i); - self.in_const_context -= 1; +/// Classify a binary operator as the IOSP "logic kind" it represents, if any. +/// Operation: pure operator-group lookup. +fn binary_logic_kind(op: &syn::BinOp) -> Option<&'static str> { + use syn::BinOp; + match op { + BinOp::Add(_) | BinOp::Sub(_) | BinOp::Mul(_) | BinOp::Div(_) | BinOp::Rem(_) => { + Some("arithmetic") + } + BinOp::And(_) | BinOp::Or(_) => Some("boolean_op"), + BinOp::Eq(_) | BinOp::Ne(_) | BinOp::Lt(_) | BinOp::Le(_) | BinOp::Gt(_) | BinOp::Ge(_) => { + Some("comparison") + } + BinOp::BitAnd(_) | BinOp::BitOr(_) | BinOp::BitXor(_) | BinOp::Shl(_) | BinOp::Shr(_) => { + Some("bitwise") + } + _ => None, } } diff --git a/src/adapters/analyzers/srp/cohesion.rs b/src/adapters/analyzers/srp/cohesion.rs index 7de09200..c5fe5e40 100644 --- a/src/adapters/analyzers/srp/cohesion.rs +++ b/src/adapters/analyzers/srp/cohesion.rs @@ -11,13 +11,18 @@ use super::{MethodFieldData, ResponsibilityCluster, SrpWarning, StructInfo}; pub fn build_struct_warnings( structs: &[StructInfo], methods: &[MethodFieldData], + bridges: &[MethodFieldData], config: &SrpConfig, ) -> Vec { - // Group methods by parent type + // Group methods (cohesion nodes) and bridges (trait-method connectors) by type let mut methods_by_type: HashMap<&str, Vec<&MethodFieldData>> = HashMap::new(); for m in methods { methods_by_type.entry(&m.parent_type).or_default().push(m); } + let mut bridges_by_type: HashMap<&str, Vec<&MethodFieldData>> = HashMap::new(); + for b in bridges { + bridges_by_type.entry(&b.parent_type).or_default().push(b); + } structs .iter() @@ -32,7 +37,14 @@ pub fn build_struct_warnings( } let field_idx = build_field_method_index(&method_list, &s.fields); - let (lcom4, clusters) = compute_lcom4(&method_list, &s.fields, &field_idx); + let type_bridges = bridges_by_type + .get(s.name.as_str()) + .map(Vec::as_slice) + .unwrap_or(&[]); + let bridge_groups = + bridge_member_groups(type_bridges, &method_list, &s.fields, &field_idx); + let (lcom4, clusters) = + compute_lcom4(&method_list, &s.fields, &field_idx, &bridge_groups); let fan_out = compute_fan_out(&method_list); let composite = compute_composite_score(lcom4, s.fields.len(), method_list.len(), fan_out, config); @@ -104,13 +116,77 @@ pub(crate) fn build_field_method_index<'a>( field_to_methods } +/// The method indices a bridge (non-mechanical trait method) ties together: all +/// real methods that touch any field in the bridge's footprint (its direct field +/// accesses plus the fields of the inherent methods it calls on `self`). Unioning +/// each group lets a visitor's `visit_*` methods cohere the helpers they drive, +/// without the bridge itself counting as a responsibility node. +/// Operation: per-bridge footprint expansion + member collection. +fn bridge_member_groups( + bridges: &[&MethodFieldData], + methods: &[&MethodFieldData], + struct_fields: &[String], + field_to_methods: &HashMap<&str, Vec>, +) -> Vec> { + let direct_fields: HashMap<&str, &HashSet> = methods + .iter() + .map(|m| (m.method_name.as_str(), &m.field_accesses)) + .collect(); + let method_index: HashMap<&str, usize> = methods + .iter() + .enumerate() + .map(|(i, m)| (m.method_name.as_str(), i)) + .collect(); + let struct_field_set: HashSet<&str> = struct_fields.iter().map(String::as_str).collect(); + + bridges + .iter() + .map(|b| { + let mut footprint: HashSet<&str> = b + .field_accesses + .iter() + .map(String::as_str) + .filter(|f| struct_field_set.contains(f)) + .collect(); + b.self_method_calls.iter().for_each(|callee| { + if let Some(callee_fields) = direct_fields.get(callee.as_str()) { + callee_fields + .iter() + .map(String::as_str) + .filter(|f| struct_field_set.contains(f)) + .for_each(|f| { + footprint.insert(f); + }); + } + }); + let mut members: Vec = footprint + .iter() + .filter_map(|f| field_to_methods.get(f)) + .flatten() + .copied() + .collect(); + // Also tie in the methods the bridge directly drives, so a handler + // that touches no field of its own (pure delegation, e.g. a visitor + // dispatch arm) still coheres with the rest of the walk. + b.self_method_calls + .iter() + .filter_map(|callee| method_index.get(callee.as_str()).copied()) + .for_each(|idx| members.push(idx)); + members.sort_unstable(); + members.dedup(); + members + }) + .collect() +} + /// Compute LCOM4: number of connected components in the method-field graph. -/// Operation: Union-Find on method indices connected by shared field accesses. -/// Uses closures to wrap UnionFind calls for IOSP lenient-mode compliance. +/// Operation: Union-Find on method indices connected by shared field accesses +/// and bridge groups. Uses closures to wrap UnionFind calls for IOSP lenient-mode. pub(crate) fn compute_lcom4( methods: &[&MethodFieldData], struct_fields: &[String], field_to_methods: &HashMap<&str, Vec>, + bridge_groups: &[Vec], ) -> (usize, Vec) { let n = methods.len(); if n == 0 { @@ -126,6 +202,25 @@ pub(crate) fn compute_lcom4( field_to_methods.values().for_each(|indices| { indices.windows(2).for_each(|w| unite(&mut uf, w[0], w[1])); }); + // Union methods connected by a `self.other()` call. Canonical LCOM4 joins + // methods that share a field OR that call one another; a method delegating + // to a sibling collaborates with it even when it touches no field directly. + let method_index: HashMap<&str, usize> = methods + .iter() + .enumerate() + .map(|(i, m)| (m.method_name.as_str(), i)) + .collect(); + methods.iter().enumerate().for_each(|(i, m)| { + m.self_method_calls.iter().for_each(|callee| { + if let Some(&j) = method_index.get(callee.as_str()) { + unite(&mut uf, i, j); + } + }); + }); + // Union methods tied together by a trait-method bridge. + bridge_groups.iter().for_each(|group| { + group.windows(2).for_each(|w| unite(&mut uf, w[0], w[1])); + }); // Invert `field_to_methods` into a per-method field set. This // captures the SAME expanded view (direct accesses PLUS fields // reached via one-level `self_method_calls`) used above for diff --git a/src/adapters/analyzers/srp/mod.rs b/src/adapters/analyzers/srp/mod.rs index 2ac493d7..3f9387c7 100644 --- a/src/adapters/analyzers/srp/mod.rs +++ b/src/adapters/analyzers/srp/mod.rs @@ -6,6 +6,7 @@ use std::collections::HashSet; use syn::visit::Visit; +use crate::adapters::shared::file_visitor::{visit_all_files, FileVisitor}; use crate::config::sections::SrpConfig; /// Warning about a struct that may violate the Single Responsibility Principle. @@ -88,23 +89,25 @@ pub fn analyze_srp( parsed: &[(String, String, syn::File)], config: &SrpConfig, file_call_graph: &std::collections::HashMap)>>, - test_length_thresholds: (usize, usize), + test_file_length: usize, ) -> SrpAnalysis { let mut structs = Vec::new(); let mut struct_collector = StructCollector { file: String::new(), structs: &mut structs, }; - crate::adapters::analyzers::dry::visit_all_files(parsed, &mut struct_collector); + visit_all_files(parsed, &mut struct_collector); let mut methods = Vec::new(); + let mut bridges = Vec::new(); let mut method_collector = ImplMethodCollector { file: String::new(), methods: &mut methods, + bridges: &mut bridges, }; - crate::adapters::analyzers::dry::visit_all_files(parsed, &mut method_collector); + visit_all_files(parsed, &mut method_collector); - let struct_warnings = cohesion::build_struct_warnings(&structs, &methods, config); + let struct_warnings = cohesion::build_struct_warnings(&structs, &methods, &bridges, config); let cfg_test_files = crate::adapters::shared::cfg_test_files::collect_cfg_test_file_paths(parsed); let module_warnings = module::analyze_module_srp( @@ -112,7 +115,7 @@ pub fn analyze_srp( config, file_call_graph, &cfg_test_files, - test_length_thresholds, + test_file_length, ); let param_warnings = Vec::new(); SrpAnalysis { @@ -128,7 +131,7 @@ struct StructCollector<'a> { structs: &'a mut Vec, } -impl crate::adapters::analyzers::dry::FileVisitor for StructCollector<'_> { +impl FileVisitor for StructCollector<'_> { fn reset_for_file(&mut self, file_path: &str) { self.file = file_path.to_string(); } @@ -154,13 +157,57 @@ impl<'ast, 'a> Visit<'ast> for StructCollector<'a> { } } -/// AST visitor that collects method field accesses and call targets from impl blocks. +/// Trait names whose impl methods are mechanical (touch all fields to format, +/// compare, convert, hash, or (de)serialize). Their cohesion is meaningless and +/// would mask real god-structs, so they are excluded entirely — neither +/// responsibility nodes nor bridges. +const MECHANICAL_TRAITS: &[&str] = &[ + "Display", + "Debug", + "Default", + "Clone", + "Copy", + "Hash", + "PartialEq", + "Eq", + "PartialOrd", + "Ord", + "From", + "Into", + "TryFrom", + "TryInto", + "AsRef", + "AsMut", + "Borrow", + "BorrowMut", + "Serialize", + "Deserialize", + "Drop", + "Deref", + "DerefMut", +]; + +/// Whether a trait path names a mechanical trait (matched on its last segment). +/// Operation: last-segment lookup against the blacklist. +fn is_mechanical_trait(path: &syn::Path) -> bool { + path.segments + .last() + .map(|s| s.ident.to_string()) + .is_some_and(|name| MECHANICAL_TRAITS.contains(&name.as_str())) +} + +/// AST visitor that collects method field accesses and call targets from impl +/// blocks. Inherent methods become cohesion **nodes** (`methods`); non-mechanical +/// trait methods (e.g. `Visit`) become **bridges** — their field footprint +/// unions the inherent methods they tie together without counting as a separate +/// responsibility (so a visitor's helpers cohere instead of fragmenting). struct ImplMethodCollector<'a> { file: String, methods: &'a mut Vec, + bridges: &'a mut Vec, } -impl crate::adapters::analyzers::dry::FileVisitor for ImplMethodCollector<'_> { +impl FileVisitor for ImplMethodCollector<'_> { fn reset_for_file(&mut self, file_path: &str) { self.file = file_path.to_string(); } @@ -177,11 +224,17 @@ impl<'ast, 'a> Visit<'ast> for ImplMethodCollector<'a> { syn::visit::visit_item_impl(self, node); return; }; - // Skip trait impls for SRP analysis (Display, Default, etc. are not "own" methods) - if node.trait_.is_some() { + // Mechanical trait impls (Display, serde, …) are excluded entirely. + if node + .trait_ + .as_ref() + .is_some_and(|(_, p, _)| is_mechanical_trait(p)) + { syn::visit::visit_item_impl(self, node); return; } + // Non-mechanical trait impls contribute bridges; inherent impls, nodes. + let is_bridge = node.trait_.is_some(); for item in &node.items { if let syn::ImplItem::Fn(method) = item { @@ -196,14 +249,19 @@ impl<'ast, 'a> Visit<'ast> for ImplMethodCollector<'a> { self_method_calls: HashSet::new(), }; body_visitor.visit_block(&method.block); - self.methods.push(MethodFieldData { + let data = MethodFieldData { method_name: method.sig.ident.to_string(), parent_type: type_name.clone(), field_accesses: body_visitor.field_accesses, call_targets: body_visitor.call_targets, self_method_calls: body_visitor.self_method_calls, is_constructor, - }); + }; + if is_bridge { + self.bridges.push(data); + } else { + self.methods.push(data); + } } } // Don't call default visit — we already handled methods manually diff --git a/src/adapters/analyzers/srp/module.rs b/src/adapters/analyzers/srp/module.rs index 435a3ead..8a6b640b 100644 --- a/src/adapters/analyzers/srp/module.rs +++ b/src/adapters/analyzers/srp/module.rs @@ -100,11 +100,12 @@ pub(crate) fn count_independent_clusters( (count, cluster_names) } -/// Analyze module-level SRP: flag files with excessive production line counts -/// or too many independent function clusters. +/// Analyze module-level SRP: flag files whose production line count exceeds +/// the `file_length` threshold, or that have too many independent function +/// clusters. /// -/// Test files (per `cfg_test_files`) are length-scored against the -/// `[tests]`-resolved baseline/ceiling instead of the production ones; the +/// Test files (per `cfg_test_files`) are length-checked against the +/// `[tests]`-resolved `file_length` instead of the production one; the /// cohesion (independent-cluster) check is **production-only** because a test /// file's independent `#[test]` fns are its purpose, not a low-cohesion smell. /// Operation: iterates files, computes production lines, length score, @@ -114,21 +115,21 @@ pub fn analyze_module_srp( config: &SrpConfig, file_call_graph: &HashMap)>>, cfg_test_files: &std::collections::HashSet, - test_length_thresholds: (usize, usize), + test_file_length: usize, ) -> Vec { parsed .iter() .filter_map(|(path, source, syntax)| { let is_test = cfg_test_files.contains(path); - // `test_length_thresholds` = `(baseline, ceiling)` resolved from - // `[tests]` (defaults to production). Applied to test files only. - let (baseline, ceiling) = if is_test { - test_length_thresholds + // `test_file_length` is resolved from `[tests]` (defaults to + // production). Applied to test files only. + let threshold = if is_test { + test_file_length } else { - (config.file_length_baseline, config.file_length_ceiling) + config.file_length }; let production_lines = count_production_lines(source); - let score = compute_file_length_score(production_lines, baseline, ceiling); + let score = compute_file_length_score(production_lines, threshold); // Cohesion is production-only: independent test fns are expected, so // a test file contributes no clusters (and the walk is skipped). @@ -143,7 +144,9 @@ pub fn analyze_module_srp( count_independent_clusters(&free_fns, call_graph, config.min_cluster_statements) }; - let has_length_warning = score > 0.0; + // Strict `>`: a file exactly at the threshold still passes, + // consistent with the other `max_*` thresholds in this crate. + let has_length_warning = production_lines > threshold; // Use strict `>` for consistency with the other `max_*` // thresholds in this crate (max_cognitive, max_fan_in, // max_function_lines etc. all treat the configured value @@ -248,26 +251,16 @@ fn handle_in_comment( } } -/// Compute file length penalty score. -/// Returns 0.0 below baseline, 1.0 above ceiling, linear between. -/// Operation: arithmetic. -pub(crate) fn compute_file_length_score( - production_lines: usize, - baseline: usize, - ceiling: usize, -) -> f64 { - // Misconfiguration guard: if the thresholds are inverted the - // subtraction below would underflow (usize). Handle this first so - // the behaviour is consistent regardless of `production_lines`. - if ceiling <= baseline { +/// Severity ratio of a file's production length against the single +/// `file_length` threshold: `production_lines / threshold`. A value of +/// 1.0 means exactly at the limit; SRP_MODULE fires strictly above it +/// (see `analyze_module_srp`). Reported as metadata only — the SRP +/// dimension score is count-based, not score-weighted. +/// Operation: arithmetic with a zero-threshold guard. +pub(crate) fn compute_file_length_score(production_lines: usize, threshold: usize) -> f64 { + // Misconfiguration guard: a zero threshold means every file is "over". + if threshold == 0 { return 1.0; } - if production_lines <= baseline { - return 0.0; - } - if production_lines >= ceiling { - return 1.0; - } - let range = (ceiling - baseline) as f64; - (production_lines - baseline) as f64 / range + production_lines as f64 / threshold as f64 } diff --git a/src/adapters/analyzers/srp/tests/cohesion/lcom4_and_collector.rs b/src/adapters/analyzers/srp/tests/cohesion/lcom4_and_collector.rs index 2737339b..b256fd5e 100644 --- a/src/adapters/analyzers/srp/tests/cohesion/lcom4_and_collector.rs +++ b/src/adapters/analyzers/srp/tests/cohesion/lcom4_and_collector.rs @@ -54,7 +54,8 @@ fn lcom4_constructor_and_transitive_connections() { ); let refs: Vec<&MethodFieldData> = owned.iter().collect(); let fields: Vec = struct_fields.iter().map(|s| s.to_string()).collect(); - let (lcom4, _) = compute_lcom4(&refs, &fields, &build_field_method_index(&refs, &fields)); + let idx = build_field_method_index(&refs, &fields); + let (lcom4, _) = compute_lcom4(&refs, &fields, &idx, &[]); assert_eq!(lcom4, *expected, "case {label}"); } } @@ -69,6 +70,7 @@ fn test_cluster_contains_correct_fields() { &methods, &fields, &build_field_method_index(&methods, &fields), + &[], ); assert_eq!(clusters.len(), 2); // Each cluster should have exactly one method and one field @@ -94,6 +96,7 @@ fn test_lcom4_self_method_call_resolves_field_access() { &methods, &fields, &build_field_method_index(&methods, &fields), + &[], ); assert_eq!( lcom4, 1, @@ -161,7 +164,7 @@ fn lcom4_unites_methods_linked_via_debug_assert_macro() { ..SrpConfig::default() }, &HashMap::new(), - (300, 800), + 300, ); let w = analysis .struct_warnings diff --git a/src/adapters/analyzers/srp/tests/cohesion/mod.rs b/src/adapters/analyzers/srp/tests/cohesion/mod.rs index 12eb9bc8..52461d73 100644 --- a/src/adapters/analyzers/srp/tests/cohesion/mod.rs +++ b/src/adapters/analyzers/srp/tests/cohesion/mod.rs @@ -100,10 +100,12 @@ pub(super) fn collect_methods_for(code: &str) -> Vec { let syntax = syn::parse_file(code).expect("parse test fixture"); let parsed = vec![("test.rs".to_string(), code.to_string(), syntax)]; let mut result = Vec::new(); + let mut bridges = Vec::new(); let mut collector = crate::adapters::analyzers::srp::ImplMethodCollector { file: String::new(), methods: &mut result, + bridges: &mut bridges, }; - crate::adapters::analyzers::dry::visit_all_files(&parsed, &mut collector); + crate::adapters::shared::file_visitor::visit_all_files(&parsed, &mut collector); result } diff --git a/src/adapters/analyzers/srp/tests/cohesion/scoring.rs b/src/adapters/analyzers/srp/tests/cohesion/scoring.rs index d9be380e..252ddfe2 100644 --- a/src/adapters/analyzers/srp/tests/cohesion/scoring.rs +++ b/src/adapters/analyzers/srp/tests/cohesion/scoring.rs @@ -45,8 +45,12 @@ fn lcom4_scenarios() { .collect(); let refs: Vec<&MethodFieldData> = methods.iter().collect(); let fields: Vec = field_names.iter().map(|s| s.to_string()).collect(); - let (lcom4, clusters) = - compute_lcom4(&refs, &fields, &build_field_method_index(&refs, &fields)); + let (lcom4, clusters) = compute_lcom4( + &refs, + &fields, + &build_field_method_index(&refs, &fields), + &[], + ); assert_eq!(lcom4, *exp_lcom4, "case: {label}"); if let Some(c) = exp_clusters { assert_eq!(clusters.len(), *c, "case: {label}"); diff --git a/src/adapters/analyzers/srp/tests/cohesion/warnings.rs b/src/adapters/analyzers/srp/tests/cohesion/warnings.rs index d4c70af1..1d0e7b7d 100644 --- a/src/adapters/analyzers/srp/tests/cohesion/warnings.rs +++ b/src/adapters/analyzers/srp/tests/cohesion/warnings.rs @@ -7,10 +7,41 @@ fn test_build_struct_warnings_no_warning_for_small_struct() { let m2 = make_method("get", "Counter", &["count"], &[]); let methods = vec![m1, m2]; let config = SrpConfig::default(); - let warnings = build_struct_warnings(&structs, &methods, &config); + let warnings = build_struct_warnings(&structs, &methods, &[], &config); assert!(warnings.is_empty(), "Small cohesive struct should not warn"); } +/// A non-mechanical trait method (e.g. a `Visit` override) that calls two +/// disjoint-field helpers BRIDGES them: with the bridge the helpers cohere +/// (LCOM4=1, no warning); without it they fragment and the struct trips SRP. +/// This is the visitor case — the `visit_*` methods tie the helpers together. +#[test] +fn test_bridge_unions_disjoint_helpers() { + // 12 fields so field_norm maxes out; two helpers touch disjoint fields. + let field_names: Vec = ('a'..='l').map(|c| c.to_string()).collect(); + let fields: Vec<&str> = field_names.iter().map(String::as_str).collect(); + let structs = vec![make_struct("Visitor", &fields)]; + let skip = make_method("skip", "Visitor", &["a"], &[]); + let push = make_method("push", "Visitor", &["b"], &[]); + let methods = vec![skip, push]; + let config = SrpConfig::default(); + + // Without a bridge: the two helpers are disconnected → god-struct. + let no_bridge = build_struct_warnings(&structs, &methods, &[], &config); + assert!( + !no_bridge.is_empty(), + "disjoint helpers with no bridge should trip SRP" + ); + + // With a `visit_*` bridge calling both helpers: they cohere → no warning. + let bridge = make_method_with_self_calls("visit_expr", "Visitor", &[], &["skip", "push"]); + let bridged = build_struct_warnings(&structs, &methods, &[bridge], &config); + assert!( + bridged.is_empty(), + "a trait-method bridge tying the helpers together clears the false god-struct" + ); +} + #[test] fn test_build_struct_warnings_single_method_skipped() { // Structs with <2 methods are skipped (LCOM4 is undefined) @@ -18,7 +49,7 @@ fn test_build_struct_warnings_single_method_skipped() { let m1 = make_method("do_it", "Solo", &["x"], &[]); let methods = vec![m1]; let config = SrpConfig::default(); - let warnings = build_struct_warnings(&structs, &methods, &config); + let warnings = build_struct_warnings(&structs, &methods, &[], &config); assert!(warnings.is_empty()); } @@ -27,7 +58,7 @@ fn test_build_struct_warnings_no_methods_skipped() { let structs = vec![make_struct("Data", &["x", "y"])]; let methods = vec![]; let config = SrpConfig::default(); - let warnings = build_struct_warnings(&structs, &methods, &config); + let warnings = build_struct_warnings(&structs, &methods, &[], &config); assert!(warnings.is_empty()); } @@ -105,6 +136,7 @@ fn test_build_struct_warnings_triggers_for_incohesive() { let warnings = build_struct_warnings( &god_object_struct(), &god_object_methods(), + &[], &SrpConfig::default(), ); assert!( @@ -153,7 +185,7 @@ fn test_build_struct_warnings_two_methods_analysed_not_skipped() { smell_threshold: 0.0, ..SrpConfig::default() }; - let warnings = build_struct_warnings(&structs, &methods, &config); + let warnings = build_struct_warnings(&structs, &methods, &[], &config); assert_eq!( warnings.len(), 1, diff --git a/src/adapters/analyzers/srp/tests/module/clusters.rs b/src/adapters/analyzers/srp/tests/module/clusters.rs index 45445831..c405136e 100644 --- a/src/adapters/analyzers/srp/tests/module/clusters.rs +++ b/src/adapters/analyzers/srp/tests/module/clusters.rs @@ -1,5 +1,48 @@ use super::*; +/// Three independent private algorithms (sort / search / hash) with no calls +/// between them — a short file with 3 cohesion clusters but well under the +/// file_length threshold. Used to exercise cohesion-only module warnings. +const THREE_ALGO_FIXTURE: &str = r#" +fn algo_sort(data: &mut [i32]) { +let n = data.len(); +let mut swapped = true; +while swapped { + swapped = false; + for i in 1..n { + if data[i - 1] > data[i] { + data.swap(i - 1, i); + swapped = true; + } + } +} +} +fn algo_search(data: &[i32], target: i32) -> Option { +let mut lo = 0; +let mut hi = data.len(); +while lo < hi { + let mid = (lo + hi) / 2; + if data[mid] == target { + return Some(mid); + } else if data[mid] < target { + lo = mid + 1; + } else { + hi = mid; + } +} +None +} +fn algo_hash(data: &[u8]) -> u64 { +let mut h: u64 = 0; +for &b in data { + h = h.wrapping_mul(31).wrapping_add(b as u64); +} +let extra = data.len() as u64; +let final_val = h ^ extra; +final_val +} +"#; + // ── Independent cluster tests ───────────────────────────────── #[test] @@ -212,46 +255,8 @@ fn test_clusters_two_callers_two_groups() { #[test] fn test_cohesion_warning_without_length_warning() { - // File is short (below baseline) but has 3+ independent private algorithms - let code = r#" -fn algo_sort(data: &mut [i32]) { -let n = data.len(); -let mut swapped = true; -while swapped { - swapped = false; - for i in 1..n { - if data[i - 1] > data[i] { - data.swap(i - 1, i); - swapped = true; - } - } -} -} -fn algo_search(data: &[i32], target: i32) -> Option { -let mut lo = 0; -let mut hi = data.len(); -while lo < hi { - let mid = (lo + hi) / 2; - if data[mid] == target { - return Some(mid); - } else if data[mid] < target { - lo = mid + 1; - } else { - hi = mid; - } -} -None -} -fn algo_hash(data: &[u8]) -> u64 { -let mut h: u64 = 0; -for &b in data { - h = h.wrapping_mul(31).wrapping_add(b as u64); -} -let extra = data.len() as u64; -let final_val = h ^ extra; -final_val -} -"#; + // File is short (below threshold) but has 3+ independent private algorithms. + let code = THREE_ALGO_FIXTURE; let syntax = syn::parse_file(code).unwrap(); let parsed = vec![("algos.rs".to_string(), code.to_string(), syntax)]; // `max_*` thresholds are exclusive ("highest value that still @@ -264,8 +269,11 @@ final_val }; let call_graph = HashMap::new(); let cfg_test_files = std::collections::HashSet::new(); - let warnings = analyze_module_srp(&parsed, &config, &call_graph, &cfg_test_files, (300, 800)); + let warnings = analyze_module_srp(&parsed, &config, &call_graph, &cfg_test_files, 300); assert_eq!(warnings.len(), 1); assert_eq!(warnings[0].independent_clusters, 3); - assert!((warnings[0].length_score - 0.0).abs() < f64::EPSILON); + // The warning is cohesion-driven, not length-driven: the short fixture + // sits below the file_length threshold (ratio < 1.0). + assert!(warnings[0].production_lines <= 300); + assert!(warnings[0].length_score < 1.0); } diff --git a/src/adapters/analyzers/srp/tests/module/scoring_and_analysis.rs b/src/adapters/analyzers/srp/tests/module/scoring_and_analysis.rs index 8b8021c2..ffd8d4fd 100644 --- a/src/adapters/analyzers/srp/tests/module/scoring_and_analysis.rs +++ b/src/adapters/analyzers/srp/tests/module/scoring_and_analysis.rs @@ -1,44 +1,40 @@ use super::*; #[test] -fn test_file_length_score_below_baseline() { - let score = compute_file_length_score(100, 300, 800); - assert!((score - 0.0).abs() < f64::EPSILON); -} - -#[test] -fn test_file_length_score_at_baseline() { - let score = compute_file_length_score(300, 300, 800); - assert!((score - 0.0).abs() < f64::EPSILON); +fn test_file_length_score_below_threshold() { + // length_score is now the ratio production_lines / threshold. + let score = compute_file_length_score(150, 300); + assert!((score - 0.5).abs() < f64::EPSILON); } #[test] -fn test_file_length_score_above_ceiling() { - let score = compute_file_length_score(1000, 300, 800); +fn test_file_length_score_at_threshold() { + let score = compute_file_length_score(300, 300); assert!((score - 1.0).abs() < f64::EPSILON); } #[test] -fn test_file_length_score_midpoint() { - let score = compute_file_length_score(550, 300, 800); - assert!((score - 0.5).abs() < f64::EPSILON); +fn test_file_length_score_above_threshold() { + let score = compute_file_length_score(600, 300); + assert!((score - 2.0).abs() < f64::EPSILON); } #[test] -fn test_file_length_score_at_ceiling() { - let score = compute_file_length_score(800, 300, 800); +fn test_file_length_score_zero_threshold_guard() { + // A zero threshold means every file counts as over. + let score = compute_file_length_score(100, 0); assert!((score - 1.0).abs() < f64::EPSILON); } #[test] -fn test_analyze_module_srp_below_baseline() { +fn test_analyze_module_srp_below_threshold() { let source = "fn foo() {}\nfn bar() {}\n"; let syntax = syn::parse_file(source).unwrap(); let parsed = vec![("test.rs".to_string(), source.to_string(), syntax)]; - let config = SrpConfig::default(); // baseline=300 + let config = SrpConfig::default(); // file_length=300 let call_graph = HashMap::new(); let cfg_test_files = std::collections::HashSet::new(); - let warnings = analyze_module_srp(&parsed, &config, &call_graph, &cfg_test_files, (300, 800)); + let warnings = analyze_module_srp(&parsed, &config, &call_graph, &cfg_test_files, 300); assert!(warnings.is_empty()); } @@ -101,7 +97,7 @@ fn test_analyze_module_srp_length_and_cohesion_by_file_kind() { &SrpConfig::default(), &HashMap::new(), &cfg_test_files, - (300, 800), + 300, ); assert_eq!( !warnings.is_empty(), @@ -124,7 +120,7 @@ fn test_analyze_module_srp_test_lines_excluded() { let config = SrpConfig::default(); let call_graph = HashMap::new(); let cfg_test_files = std::collections::HashSet::new(); - let warnings = analyze_module_srp(&parsed, &config, &call_graph, &cfg_test_files, (300, 800)); + let warnings = analyze_module_srp(&parsed, &config, &call_graph, &cfg_test_files, 300); assert!( warnings.is_empty(), "Test code should not count towards production lines" diff --git a/src/adapters/analyzers/srp/tests/root.rs b/src/adapters/analyzers/srp/tests/root.rs index e875b933..93b8b3b2 100644 --- a/src/adapters/analyzers/srp/tests/root.rs +++ b/src/adapters/analyzers/srp/tests/root.rs @@ -65,18 +65,20 @@ fn collect_structs(parsed: &[(String, String, syn::File)]) -> Vec { file: String::new(), structs: &mut result, }; - crate::adapters::analyzers::dry::visit_all_files(parsed, &mut collector); + crate::adapters::shared::file_visitor::visit_all_files(parsed, &mut collector); result } /// Test helper: collect methods via visit_all_files (same as analyze_srp uses). fn collect_methods(parsed: &[(String, String, syn::File)]) -> Vec { let mut result = Vec::new(); + let mut bridges = Vec::new(); let mut collector = ImplMethodCollector { file: String::new(), methods: &mut result, + bridges: &mut bridges, }; - crate::adapters::analyzers::dry::visit_all_files(parsed, &mut collector); + crate::adapters::shared::file_visitor::visit_all_files(parsed, &mut collector); result } @@ -89,7 +91,7 @@ fn struct_warnings_for(path: &str, code: &str) -> Vec { &parsed, &SrpConfig::default(), &std::collections::HashMap::new(), - (300, 800), + 300, ) .struct_warnings } @@ -209,7 +211,7 @@ fn test_analyze_srp_empty() { let parsed: Vec<(String, String, syn::File)> = vec![]; let config = SrpConfig::default(); let call_graph = std::collections::HashMap::new(); - let analysis = analyze_srp(&parsed, &config, &call_graph, (300, 800)); + let analysis = analyze_srp(&parsed, &config, &call_graph, 300); assert!(analysis.struct_warnings.is_empty()); assert!(analysis.module_warnings.is_empty()); } @@ -243,7 +245,7 @@ fn test_analyze_srp_multiple_files() { ]; let config = SrpConfig::default(); let call_graph = std::collections::HashMap::new(); - let analysis = analyze_srp(&parsed, &config, &call_graph, (300, 800)); + let analysis = analyze_srp(&parsed, &config, &call_graph, 300); // Both structs are simple → no warnings assert!(analysis.struct_warnings.is_empty()); } @@ -254,7 +256,7 @@ fn test_analyze_srp_returns_empty_param_warnings() { let parsed: Vec<(String, String, syn::File)> = vec![]; let config = SrpConfig::default(); let call_graph = std::collections::HashMap::new(); - let analysis = analyze_srp(&parsed, &config, &call_graph, (300, 800)); + let analysis = analyze_srp(&parsed, &config, &call_graph, 300); assert!(analysis.param_warnings.is_empty()); } diff --git a/src/adapters/analyzers/structural/mod.rs b/src/adapters/analyzers/structural/mod.rs index f1d3686e..244b9928 100644 --- a/src/adapters/analyzers/structural/mod.rs +++ b/src/adapters/analyzers/structural/mod.rs @@ -1,4 +1,3 @@ -// qual:allow(coupling) reason: "leaf analysis module — high instability is expected" pub(crate) mod btc; pub(crate) mod deh; pub(crate) mod iet; @@ -58,6 +57,15 @@ impl StructuralWarningKind { } } + /// The `// qual:allow(, )` suppression-target name for this + /// check (the lowercased `code`). Used by the marking pass; the orphan + /// detector resolves the same name from the projected finding's code via + /// [`target_name_for_code`]. + /// Operation: delegates to the shared code→target map. + pub fn target_name(&self) -> &'static str { + target_name_for_code(self.code()).unwrap_or("") + } + /// Return the human-readable detail string. /// Operation: match dispatch with string formatting. pub fn detail(&self) -> String { @@ -75,6 +83,25 @@ impl StructuralWarningKind { } } +/// Map a structural rule code (`"SIT"`) to its lowercase suppression-target +/// name (`"sit"`), or `None` for an unknown code. The single source for the +/// code→target mapping, shared by `StructuralWarningKind::target_name` (marking) +/// and the orphan detector, which only has the code string from the projected +/// `Structural` finding. +/// Operation: match dispatch returning string literals. +pub fn target_name_for_code(code: &str) -> Option<&'static str> { + match code { + "BTC" => Some("btc"), + "SLM" => Some("slm"), + "NMS" => Some("nms"), + "OI" => Some("oi"), + "SIT" => Some("sit"), + "DEH" => Some("deh"), + "IET" => Some("iet"), + _ => None, + } +} + /// Results of structural analysis. #[derive(Debug, Clone, Default)] pub struct StructuralAnalysis { diff --git a/src/adapters/analyzers/structural/nms.rs b/src/adapters/analyzers/structural/nms.rs index 6e7acb07..85b4d723 100644 --- a/src/adapters/analyzers/structural/nms.rs +++ b/src/adapters/analyzers/structural/nms.rs @@ -79,39 +79,34 @@ struct MutationChecker { impl<'ast> Visit<'ast> for MutationChecker { fn visit_expr(&mut self, expr: &'ast syn::Expr) { - // Track self references - if is_self_ref(expr) { - self.has_self_ref = true; - } - // Check for mutations: self.field = ..., self.field[i] = ..., - // self.field -= ..., self.field.method(), &mut self.field - match expr { - syn::Expr::Assign(a) if is_self_target(&a.left) => { - self.has_mutation = true; - } - // Compound assignments: +=, -=, *=, etc. - syn::Expr::Binary(b) if is_compound_assign(&b.op) && is_self_target(&b.left) => { - self.has_mutation = true; - } - // Any method call on self.field or self.field[i] is conservatively a mutation - syn::Expr::MethodCall(mc) - if is_self_field(&mc.receiver) - || is_self_path(&mc.receiver) - || is_self_indexed_field(&mc.receiver) => - { - self.has_mutation = true; - } - syn::Expr::Reference(r) if r.mutability.is_some() && is_self_target(&r.expr) => { - self.has_mutation = true; - } - _ => {} - } + self.has_self_ref |= is_self_ref(expr); + self.has_mutation |= is_self_mutation(expr); if !self.has_mutation { syn::visit::visit_expr(self, expr); } } } +/// Whether `expr` mutates `self`: `self.field = …`, `self.field[i] = …`, +/// compound assignment to `self.field`, a method call on `self.field`, or +/// `&mut self.field`. Conservative — any method call on a self field counts. +/// Operation: pattern matching against self-target shapes, no own calls counted. +fn is_self_mutation(expr: &syn::Expr) -> bool { + match expr { + syn::Expr::Assign(a) => is_self_target(&a.left), + // Compound assignments: +=, -=, *=, etc. + syn::Expr::Binary(b) => is_compound_assign(&b.op) && is_self_target(&b.left), + // Any method call on self.field or self.field[i] is conservatively a mutation + syn::Expr::MethodCall(mc) => { + is_self_field(&mc.receiver) + || is_self_path(&mc.receiver) + || is_self_indexed_field(&mc.receiver) + } + syn::Expr::Reference(r) => r.mutability.is_some() && is_self_target(&r.expr), + _ => false, + } +} + /// Check if expression is a mutation target involving self: `self.field`, `self.field[i]`. /// Operation: pattern matching, no own calls. fn is_self_target(expr: &syn::Expr) -> bool { diff --git a/src/adapters/analyzers/tq/dispatch.rs b/src/adapters/analyzers/tq/dispatch.rs new file mode 100644 index 00000000..614c5499 --- /dev/null +++ b/src/adapters/analyzers/tq/dispatch.rs @@ -0,0 +1,277 @@ +//! Visitor-dispatch call-graph edges for TQ-003 reachability. +//! +//! TQ's call graph is built from direct `self.method()` / `func()` calls, so it +//! cannot follow `syn`'s trait dispatch: a test that drives a visitor via +//! `collector.visit_block(body)` reaches the *entry* (`visit_block`), but syn's +//! internal `visit_block → visit_stmt → visit_expr` recursion into the type's +//! overrides is invisible. The overridden `visit_*` methods (and the helper +//! methods they call) therefore look unreachable from tests. +//! +//! This module restores the missing reachability with **real edges**, not a +//! blanket "visitors are tested" assumption: for each visitor type `T` it +//! records the helper methods `T`'s `syn::Visit` overrides call, and at each +//! drive-site (`x.visit_block(..)`, `syn::visit::visit_*(&mut x, ..)`, +//! `visit_all_files(.., &mut x)`) it resolves the driven type `T` locally and +//! adds `driver_fn → helpers(T)` edges. Testedness then flows only when a test +//! actually drives the visitor — a visitor no test exercises stays untested. + +use std::collections::HashMap; + +use syn::visit::Visit; + +/// Known generic forwarder helpers whose visitor argument is the *driven* type. +/// `visit_all_files(parsed, &mut collector)` drives `collector` over every file. +const DRIVE_FORWARDERS: &[(&str, usize)] = &[("visit_all_files", 1)]; + +/// Compute `driver_fn → helper-method-name` edges that model syn-visitor +/// dispatch. Each returned pair adds the helper names a driver transitively +/// reaches by launching its visitor; the bare call graph propagates from there. +pub(crate) fn visitor_dispatch_edges( + parsed: &[(String, String, syn::File)], +) -> Vec<(String, Vec)> { + let helpers = collect_visitor_helpers(parsed); + let mut drives = DriveCollector { + helpers: &helpers, + edges: Vec::new(), + current_fn: None, + bindings: HashMap::new(), + }; + for (_, _, file) in parsed { + drives.visit_file(file); + } + drives.edges +} + +/// The last path segment's identifier (the unqualified type / fn name). +fn last_segment(path: &syn::Path) -> Option { + path.segments.last().map(|s| s.ident.to_string()) +} + +/// The unqualified name of a `Type::Path` self-type (`Foo<'a>` → `Foo`). +fn self_type_name(ty: &syn::Type) -> Option { + match ty { + syn::Type::Path(tp) => last_segment(&tp.path), + _ => None, + } +} + +/// If `expr` is a visitor construction (`T::new(..)`, `T::default()`, +/// `T { .. }`), return `T`. Used both for `let` bindings and inline drives. +fn constructed_type(expr: &syn::Expr) -> Option { + match expr { + syn::Expr::Struct(s) => last_segment(&s.path), + syn::Expr::Call(c) => match c.func.as_ref() { + syn::Expr::Path(p) if p.path.segments.len() >= 2 => { + let segs = &p.path.segments; + let last = segs.last()?.ident.to_string(); + let is_ctor = + matches!(last.as_str(), "new" | "default" | "with_capacity" | "build"); + is_ctor.then(|| segs[segs.len() - 2].ident.to_string()) + } + _ => None, + }, + _ => None, + } +} + +// ── Pass 1: per-type visitor helper methods ───────────────────── + +/// AST visitor collecting, per type `T`, the helper method names that `T`'s +/// `syn::Visit` override methods call (everything they invoke that isn't itself +/// a `visit_*` method). +#[derive(Default)] +struct HelperCollector { + map: HashMap>, + /// Stack of enclosing-impl visitor types (`None` = not a `Visit` impl). + type_stack: Vec>, + /// `Some(T)` while inside a `visit_*` override of `Visit`-impl type `T`. + collecting: Option, +} + +impl HelperCollector { + /// Record a callee name as a helper of the type currently being collected. + /// Operation: gate on collecting state + non-`visit_` name, then insert. + fn record(&mut self, name: &str) { + if let Some(t) = self.collecting.clone() { + if !name.starts_with("visit_") { + self.map.entry(t).or_default().push(name.to_string()); + } + } + } +} + +impl<'ast> Visit<'ast> for HelperCollector { + fn visit_item_impl(&mut self, node: &'ast syn::ItemImpl) { + let is_visit = node + .trait_ + .as_ref() + .is_some_and(|(_, path, _)| last_segment(path).is_some_and(|s| s.starts_with("Visit"))); + let ty = is_visit.then(|| self_type_name(&node.self_ty)).flatten(); + self.type_stack.push(ty); + syn::visit::visit_item_impl(self, node); + self.type_stack.pop(); + } + + fn visit_impl_item_fn(&mut self, node: &'ast syn::ImplItemFn) { + let enclosing = self.type_stack.last().cloned().flatten(); + let is_visit_method = node.sig.ident.to_string().starts_with("visit_"); + let prev = self.collecting.take(); + if let Some(t) = enclosing { + if is_visit_method { + self.collecting = Some(t); + } + } + syn::visit::visit_impl_item_fn(self, node); + self.collecting = prev; + } + + fn visit_expr_method_call(&mut self, node: &'ast syn::ExprMethodCall) { + self.record(&node.method.to_string()); + syn::visit::visit_expr_method_call(self, node); + } + + fn visit_expr_call(&mut self, node: &'ast syn::ExprCall) { + if let syn::Expr::Path(p) = node.func.as_ref() { + if let Some(last) = last_segment(&p.path) { + self.record(&last); + } + } + syn::visit::visit_expr_call(self, node); + } +} + +/// Run pass 1 over all files. +/// Operation: per-file visitor drive, no own calls. +fn collect_visitor_helpers(parsed: &[(String, String, syn::File)]) -> HashMap> { + let mut collector = HelperCollector::default(); + for (_, _, file) in parsed { + collector.visit_file(file); + } + collector.map +} + +// ── Pass 2: drive-sites → helper edges ────────────────────────── + +/// AST visitor that, per function, tracks local visitor constructions and emits +/// `driver_fn → helpers(T)` edges for each drive-site whose visitor resolves to +/// a known visitor type `T`. +struct DriveCollector<'h> { + helpers: &'h HashMap>, + edges: Vec<(String, Vec)>, + current_fn: Option, + /// Local `let v = T::new()` bindings in the current function: ident → type. + bindings: HashMap, +} + +impl DriveCollector<'_> { + /// Resolve the visitor expression at a drive-site to its type name, via the + /// local binding table or an inline construction. `&mut x` is unwrapped. + /// Operation: reference peel + binding lookup / inline ctor. + fn resolve_driven(&self, expr: &syn::Expr) -> Option { + let inner = match expr { + syn::Expr::Reference(r) => r.expr.as_ref(), + other => other, + }; + if let Some(t) = constructed_type(inner) { + return Some(t); + } + if let syn::Expr::Path(p) = inner { + if let Some(id) = p.path.get_ident() { + return self.bindings.get(&id.to_string()).cloned(); + } + } + None + } + + /// Emit a `driver → helpers(T)` edge if `T` is a known visitor type. + /// Operation: map lookup + push. + fn emit_drive(&mut self, driven_type: Option) { + let (Some(t), Some(caller)) = (driven_type, self.current_fn.clone()) else { + return; + }; + if let Some(hs) = self.helpers.get(&t) { + self.edges.push((caller, hs.clone())); + } + } + + /// Record `let v = ` so later drives on `v` resolve to its type. + /// Operation: pattern/ident extraction + insert. + fn record_binding(&mut self, local: &syn::Local) { + let syn::Pat::Ident(pi) = &local.pat else { + return; + }; + if let Some(init) = &local.init { + if let Some(t) = constructed_type(&init.expr) { + self.bindings.insert(pi.ident.to_string(), t); + } + } + } + + /// Handle a free-fn call that may drive a visitor: `syn::visit::visit_*(x,..)` + /// or a known forwarder like `visit_all_files(.., &mut x)`. + /// Operation: name dispatch + argument resolution. + fn handle_call_drive(&mut self, node: &syn::ExprCall) { + let syn::Expr::Path(p) = node.func.as_ref() else { + return; + }; + let Some(name) = last_segment(&p.path) else { + return; + }; + let is_syn_visit = + name.starts_with("visit_") && p.path.segments.iter().any(|s| s.ident == "visit"); + if is_syn_visit { + let driven = node.args.first().and_then(|a| self.resolve_driven(a)); + self.emit_drive(driven); + return; + } + if let Some((_, arg_idx)) = DRIVE_FORWARDERS.iter().find(|(n, _)| *n == name) { + let driven = node + .args + .iter() + .nth(*arg_idx) + .and_then(|a| self.resolve_driven(a)); + self.emit_drive(driven); + } + } + + /// Enter a function: reset the per-function binding table and walk the body. + /// Operation: save/restore current_fn + bindings around the recursion. + fn enter_fn(&mut self, name: String, walk: impl FnOnce(&mut Self)) { + let prev_fn = self.current_fn.take(); + let prev_bindings = std::mem::take(&mut self.bindings); + self.current_fn = Some(name); + walk(self); + self.current_fn = prev_fn; + self.bindings = prev_bindings; + } +} + +impl<'ast> Visit<'ast> for DriveCollector<'_> { + fn visit_item_fn(&mut self, node: &'ast syn::ItemFn) { + let name = node.sig.ident.to_string(); + self.enter_fn(name, |s| syn::visit::visit_item_fn(s, node)); + } + + fn visit_impl_item_fn(&mut self, node: &'ast syn::ImplItemFn) { + let name = node.sig.ident.to_string(); + self.enter_fn(name, |s| syn::visit::visit_impl_item_fn(s, node)); + } + + fn visit_local(&mut self, node: &'ast syn::Local) { + self.record_binding(node); + syn::visit::visit_local(self, node); + } + + fn visit_expr_method_call(&mut self, node: &'ast syn::ExprMethodCall) { + if node.method.to_string().starts_with("visit_") { + let driven = self.resolve_driven(&node.receiver); + self.emit_drive(driven); + } + syn::visit::visit_expr_method_call(self, node); + } + + fn visit_expr_call(&mut self, node: &'ast syn::ExprCall) { + self.handle_call_drive(node); + syn::visit::visit_expr_call(self, node); + } +} diff --git a/src/adapters/analyzers/tq/mod.rs b/src/adapters/analyzers/tq/mod.rs index d18e4b35..121b9e0e 100644 --- a/src/adapters/analyzers/tq/mod.rs +++ b/src/adapters/analyzers/tq/mod.rs @@ -1,6 +1,6 @@ -// qual:allow(coupling) reason: "leaf analysis module — high instability is expected" pub(crate) mod assertions; pub(crate) mod coverage; +pub(crate) mod dispatch; pub(crate) mod lcov; pub(crate) mod sut; pub(crate) mod untested; @@ -11,9 +11,9 @@ use std::path::Path; use syn::visit::Visit; use crate::adapters::analyzers::dry::dead_code::DeadCodeWarning; -use crate::adapters::analyzers::dry::DeclaredFunction; -use crate::adapters::analyzers::iosp::scope::ProjectScope; use crate::adapters::analyzers::iosp::FunctionAnalysis; +use crate::adapters::shared::declared_function::DeclaredFunction; +use crate::adapters::shared::project_scope::ProjectScope; use crate::config::Config; /// A single test quality warning. @@ -197,8 +197,13 @@ pub(crate) fn build_reaches_prod_set( pub(crate) fn analyze_test_quality(ctx: &TqContext<'_>) -> TqAnalysis { let mut warnings = Vec::new(); - // Build complete call graph (includes ignored functions like visit_*) - let full_graph = build_full_call_graph(ctx.parsed); + // Build complete call graph, then add real edges that model syn-visitor + // dispatch (driver → the helper methods its visitor's overrides call), so + // TQ-003 reachability flows through visitors the same way it does at runtime. + let mut full_graph = build_full_call_graph(ctx.parsed); + for (from, tos) in dispatch::visitor_dispatch_edges(ctx.parsed) { + full_graph.entry(from).or_default().extend(tos); + } let reaches_prod = build_reaches_prod_set(&full_graph, ctx.declared_fns); let assertion_free = assertions::detect_assertion_free_tests( @@ -210,18 +215,10 @@ pub(crate) fn analyze_test_quality(ctx: &TqContext<'_>) -> TqAnalysis { let no_sut = sut::detect_no_sut_tests(ctx.parsed, ctx.scope, ctx.declared_fns, &reaches_prod); warnings.extend(no_sut); - // Seed from test_calls + ignored functions (entry points, visitors are implicitly tested) - let seed: HashSet = ctx - .test_calls - .iter() - .cloned() - .chain( - ctx.declared_fns - .iter() - .filter(|f| ctx.config.is_ignored_function(&f.name)) - .map(|f| f.name.clone()), - ) - .collect(); + // Seed the tested set from test-reached calls only. Visitor `visit_*` + // overrides and their helpers become reachable through the real dispatch + // edges added above — no blanket "visitors are implicitly tested" seed. + let seed: HashSet = ctx.test_calls.iter().cloned().collect(); let transitive_tested = untested::build_transitive_tested_set(&seed, &full_graph); let untested_fns = untested::detect_untested_functions( @@ -229,7 +226,6 @@ pub(crate) fn analyze_test_quality(ctx: &TqContext<'_>) -> TqAnalysis { ctx.prod_calls, &transitive_tested, ctx.dead_code, - ctx.config, ); warnings.extend(untested_fns); diff --git a/src/adapters/analyzers/tq/sut.rs b/src/adapters/analyzers/tq/sut.rs index 4f537468..30e398fa 100644 --- a/src/adapters/analyzers/tq/sut.rs +++ b/src/adapters/analyzers/tq/sut.rs @@ -1,9 +1,8 @@ use std::collections::HashSet; -use syn::visit::Visit; - -use crate::adapters::analyzers::dry::DeclaredFunction; -use crate::adapters::analyzers::iosp::scope::ProjectScope; +use crate::adapters::shared::declared_function::DeclaredFunction; +use crate::adapters::shared::project_scope::ProjectScope; +use crate::adapters::shared::test_references::collect_test_references; use super::{TqWarning, TqWarningKind}; @@ -24,9 +23,8 @@ pub(crate) fn detect_no_sut_tests( let mut warnings = Vec::new(); for (path, _, syntax) in parsed { - let mut collector = TestCallCollector::default(); - collector.visit_file(syntax); - for test_fn in &collector.test_fns { + let test_fns = collect_test_references(syntax); + for test_fn in &test_fns { let calls_prod = test_fn.call_targets.iter().any(|target| { prod_fn_names.contains(target.as_str()) || scope.functions.contains(target) @@ -49,122 +47,3 @@ pub(crate) fn detect_no_sut_tests( } warnings } - -/// A collected test function with its call targets. -struct TestFnWithCalls { - name: String, - line: usize, - call_targets: Vec, - /// Type names from `Type::method()` calls (for recognizing constructor/static method calls). - type_qualified_calls: Vec, -} - -/// Collects `#[test]` functions and the functions they call. -#[derive(Default)] -struct TestCallCollector { - test_fns: Vec, - in_test_fn: bool, - current_calls: Vec, - current_type_calls: Vec, -} - -impl<'ast> Visit<'ast> for TestCallCollector { - fn visit_macro(&mut self, node: &'ast syn::Macro) { - if self.in_test_fn { - // Parse macro arguments (assert!, assert_eq!, vec!, etc.) as expressions - // to find function calls embedded inside macros. - use syn::punctuated::Punctuated; - if let Ok(args) = syn::parse::Parser::parse2( - Punctuated::::parse_terminated, - node.tokens.clone(), - ) { - args.iter() - .for_each(|expr| syn::visit::visit_expr(self, expr)); - } - } - syn::visit::visit_macro(self, node); - } - - fn visit_item_fn(&mut self, node: &'ast syn::ItemFn) { - if has_test_attr(&node.attrs) { - self.in_test_fn = true; - self.current_calls.clear(); - self.current_type_calls.clear(); - syn::visit::visit_item_fn(self, node); - self.in_test_fn = false; - let line = node.sig.ident.span().start().line; - self.test_fns.push(TestFnWithCalls { - name: node.sig.ident.to_string(), - line, - call_targets: std::mem::take(&mut self.current_calls), - type_qualified_calls: std::mem::take(&mut self.current_type_calls), - }); - } else { - syn::visit::visit_item_fn(self, node); - } - } - - fn visit_expr_call(&mut self, node: &'ast syn::ExprCall) { - if self.in_test_fn { - if let syn::Expr::Path(ref p) = *node.func { - let name = path_to_name(&p.path); - self.current_calls.push(name); - if let Some(type_name) = path_type_prefix(&p.path) { - self.current_type_calls.push(type_name); - } - } - } - syn::visit::visit_expr_call(self, node); - } - - fn visit_expr_method_call(&mut self, node: &'ast syn::ExprMethodCall) { - if self.in_test_fn { - self.current_calls.push(node.method.to_string()); - } - syn::visit::visit_expr_method_call(self, node); - } - - fn visit_expr_struct(&mut self, node: &'ast syn::ExprStruct) { - // Recognize production struct construction as exercising SUT - if self.in_test_fn { - if let Some(last) = node.path.segments.last() { - self.current_type_calls.push(last.ident.to_string()); - } - } - syn::visit::visit_expr_struct(self, node); - } - - fn visit_expr_path(&mut self, node: &'ast syn::ExprPath) { - // Recognize enum variant paths (e.g. Dimension::Iosp → type "Dimension") - if self.in_test_fn && node.path.segments.len() >= 2 { - let type_seg = &node.path.segments[node.path.segments.len() - 2]; - self.current_type_calls.push(type_seg.ident.to_string()); - } - syn::visit::visit_expr_path(self, node); - } -} - -/// Extract the final segment name from a path. -/// Operation: path segment extraction. -fn path_to_name(path: &syn::Path) -> String { - path.segments - .last() - .map(|s| s.ident.to_string()) - .unwrap_or_default() -} - -/// Extract the type prefix from a 2+-segment path (e.g. "Config" from "Config::load"). -/// Operation: path prefix extraction. -fn path_type_prefix(path: &syn::Path) -> Option { - let len = path.segments.len(); - if len >= 2 { - path.segments - .iter() - .nth(len - 2) - .map(|s| s.ident.to_string()) - } else { - None - } -} - -use crate::adapters::shared::cfg_test::has_test_attr; diff --git a/src/adapters/analyzers/tq/tests/dispatch.rs b/src/adapters/analyzers/tq/tests/dispatch.rs new file mode 100644 index 00000000..4328e69e --- /dev/null +++ b/src/adapters/analyzers/tq/tests/dispatch.rs @@ -0,0 +1,123 @@ +use crate::adapters::analyzers::tq::dispatch::visitor_dispatch_edges; + +/// Parse one source string into the `(path, source, File)` triple the analyzers +/// consume. +fn parsed(src: &str) -> Vec<(String, String, syn::File)> { + let file = syn::parse_str::(src).expect("test source parses"); + vec![("lib.rs".to_string(), src.to_string(), file)] +} + +/// A function that constructs a visitor and drives it via a method call must +/// gain an edge to the helper methods that visitor's overrides invoke. +#[test] +fn method_drive_links_driver_to_visitor_helpers() { + let src = r#" + struct V { count: u32 } + impl<'ast> syn::visit::Visit<'ast> for V { + fn visit_expr(&mut self, e: &syn::Expr) { + self.record(e); + syn::visit::visit_expr(self, e); + } + } + impl V { + fn record(&self, _e: &syn::Expr) {} + } + fn driver(body: &syn::Block) { + let mut v = V { count: 0 }; + v.visit_block(body); + } + "#; + let edges = visitor_dispatch_edges(&parsed(src)); + assert!( + edges + .iter() + .any(|(from, tos)| from == "driver" && tos.iter().any(|t| t == "record")), + "driver→record edge missing; got {edges:?}" + ); +} + +/// The `syn::visit::visit_block(&mut v, body)` free-function drive form, with the +/// visitor built by a `::new()` constructor, resolves the same way. +#[test] +fn free_fn_drive_resolves_constructor_binding() { + let src = r#" + struct N; + impl N { + fn new() -> Self { N } + fn helper(&self) {} + } + impl<'ast> syn::visit::Visit<'ast> for N { + fn visit_stmt(&mut self, s: &syn::Stmt) { + self.helper(); + syn::visit::visit_stmt(self, s); + } + } + fn run(body: &syn::Block) { + let mut n = N::new(); + syn::visit::visit_block(&mut n, body); + } + "#; + let edges = visitor_dispatch_edges(&parsed(src)); + assert!( + edges + .iter() + .any(|(from, tos)| from == "run" && tos.iter().any(|t| t == "helper")), + "run→helper edge missing; got {edges:?}" + ); +} + +/// The shared `visit_all_files(parsed, &mut collector)` forwarder drives its +/// second argument. +#[test] +fn forwarder_drive_resolves_second_argument() { + let src = r#" + struct C; + impl C { + fn default() -> Self { C } + fn tally(&self) {} + } + impl<'ast> syn::visit::Visit<'ast> for C { + fn visit_item_use(&mut self, u: &syn::ItemUse) { + self.tally(); + syn::visit::visit_item_use(self, u); + } + } + fn analyze(files: &[(String, String, syn::File)]) { + let mut collector = C::default(); + visit_all_files(files, &mut collector); + } + "#; + let edges = visitor_dispatch_edges(&parsed(src)); + assert!( + edges + .iter() + .any(|(from, tos)| from == "analyze" && tos.iter().any(|t| t == "tally")), + "analyze→tally edge missing; got {edges:?}" + ); +} + +/// A type that is never driven produces no edges — testedness must not flow to a +/// visitor no caller launches. +#[test] +fn undriven_visitor_yields_no_edges() { + let src = r#" + struct Unused; + impl<'ast> syn::visit::Visit<'ast> for Unused { + fn visit_expr(&mut self, e: &syn::Expr) { + self.lonely(); + syn::visit::visit_expr(self, e); + } + } + impl Unused { + fn lonely(&self) {} + } + fn unrelated() { + let _x = 1; + } + "#; + let edges = visitor_dispatch_edges(&parsed(src)); + assert!( + edges.is_empty(), + "no drive-site exists, so no edges expected; got {edges:?}" + ); +} diff --git a/src/adapters/analyzers/tq/tests/mod.rs b/src/adapters/analyzers/tq/tests/mod.rs index 5eb160cb..8e0091dd 100644 --- a/src/adapters/analyzers/tq/tests/mod.rs +++ b/src/adapters/analyzers/tq/tests/mod.rs @@ -1,5 +1,6 @@ mod assertions; mod coverage; +mod dispatch; mod lcov; mod root; mod sut; diff --git a/src/adapters/analyzers/tq/tests/sut.rs b/src/adapters/analyzers/tq/tests/sut.rs index ee5b016a..6014be7d 100644 --- a/src/adapters/analyzers/tq/tests/sut.rs +++ b/src/adapters/analyzers/tq/tests/sut.rs @@ -1,7 +1,7 @@ -use crate::adapters::analyzers::dry::DeclaredFunction; -use crate::adapters::analyzers::iosp::scope::ProjectScope; use crate::adapters::analyzers::tq::sut::*; use crate::adapters::analyzers::tq::{TqWarning, TqWarningKind}; +use crate::adapters::shared::declared_function::DeclaredFunction; +use crate::adapters::shared::project_scope::ProjectScope; use std::collections::HashSet; use syn::visit::Visit; diff --git a/src/adapters/analyzers/tq/tests/untested.rs b/src/adapters/analyzers/tq/tests/untested.rs index 25fc59e2..d058a7a3 100644 --- a/src/adapters/analyzers/tq/tests/untested.rs +++ b/src/adapters/analyzers/tq/tests/untested.rs @@ -1,9 +1,8 @@ use crate::adapters::analyzers::dry::dead_code::DeadCodeWarning; -use crate::adapters::analyzers::dry::DeclaredFunction; use crate::adapters::analyzers::tq::build_reaches_prod_set; use crate::adapters::analyzers::tq::untested::*; use crate::adapters::analyzers::tq::{TqWarning, TqWarningKind}; -use crate::config::Config; +use crate::adapters::shared::declared_function::DeclaredFunction; use std::collections::{HashMap, HashSet}; fn make_declared(name: &str, is_test: bool) -> DeclaredFunction { @@ -40,7 +39,7 @@ fn untested_via_graph( .map(|(f, t)| (f.to_string(), vec![t.to_string()])) .collect(); let tested = build_transitive_tested_set(&test_calls, &call_graph); - detect_untested_functions(&declared, &prod_calls, &tested, &[], &Config::default()) + detect_untested_functions(&declared, &prod_calls, &tested, &[]) } #[test] @@ -48,9 +47,8 @@ fn test_untested_prod_fn_emits_warning() { let declared = vec![make_declared("process", false)]; let prod_calls: HashSet = ["process".to_string()].into(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert_eq!(warnings.len(), 1); assert_eq!(warnings[0].kind, TqWarningKind::Untested); assert_eq!(warnings[0].function_name, "process"); @@ -61,9 +59,8 @@ fn test_tested_fn_no_warning() { let declared = vec![make_declared("process", false)]; let prod_calls: HashSet = ["process".to_string()].into(); let tested: HashSet = ["process".to_string()].into(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!(warnings.is_empty()); } @@ -72,9 +69,8 @@ fn test_uncalled_fn_no_warning() { let declared = vec![make_declared("unused", false)]; let prod_calls: HashSet = HashSet::new(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!( warnings.is_empty(), "functions not called from prod are not TQ-003" @@ -86,9 +82,8 @@ fn test_test_fn_excluded() { let declared = vec![make_declared("test_helper", true)]; let prod_calls: HashSet = ["test_helper".to_string()].into(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!(warnings.is_empty()); } @@ -98,9 +93,8 @@ fn test_main_fn_excluded() { declared[0].is_main = true; let prod_calls: HashSet = ["main".to_string()].into(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!(warnings.is_empty()); } @@ -110,9 +104,8 @@ fn test_api_fn_excluded() { declared[0].is_api = true; let prod_calls: HashSet = ["handle_overview".to_string()].into(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!( warnings.is_empty(), "qual:api functions should be excluded from TQ-003" @@ -125,9 +118,8 @@ fn test_test_helper_fn_excluded() { declared[0].is_test_helper = true; let prod_calls: HashSet = ["shared_asserter".to_string()].into(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!( warnings.is_empty(), "qual:test_helper functions should be excluded from TQ-003" @@ -140,9 +132,8 @@ fn test_trait_impl_excluded() { declared[0].is_trait_impl = true; let prod_calls: HashSet = ["fmt".to_string()].into(); let tested = HashSet::new(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert!(warnings.is_empty()); } @@ -161,9 +152,8 @@ fn test_dead_code_excluded() { suggestion: String::new(), }, ]; - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &dead, &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &dead); assert!(warnings.is_empty()); } @@ -212,9 +202,8 @@ fn test_empty_call_graph_falls_back_to_direct() { let declared = vec![make_declared("a", false), make_declared("b", false)]; let prod_calls: HashSet = ["a", "b"].iter().map(|s| s.to_string()).collect(); let tested: HashSet = ["a".to_string()].into(); - let config = Config::default(); - let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[], &config); + let warnings = detect_untested_functions(&declared, &prod_calls, &tested, &[]); assert_eq!(warnings.len(), 1); assert_eq!(warnings[0].function_name, "b"); } diff --git a/src/adapters/analyzers/tq/untested.rs b/src/adapters/analyzers/tq/untested.rs index 14248c44..add25932 100644 --- a/src/adapters/analyzers/tq/untested.rs +++ b/src/adapters/analyzers/tq/untested.rs @@ -1,8 +1,7 @@ use std::collections::{HashMap, HashSet, VecDeque}; use crate::adapters::analyzers::dry::dead_code::DeadCodeWarning; -use crate::adapters::analyzers::dry::DeclaredFunction; -use crate::config::Config; +use crate::adapters::shared::declared_function::DeclaredFunction; use super::{TqWarning, TqWarningKind}; @@ -33,7 +32,6 @@ pub(crate) fn detect_untested_functions( prod_calls: &HashSet, transitive_tested: &HashSet, dead_code: &[DeadCodeWarning], - config: &Config, ) -> Vec { // Dead code functions are already flagged — skip them for TQ-003 let dead_names: HashSet<&str> = dead_code.iter().map(|d| d.function_name.as_str()).collect(); @@ -47,7 +45,6 @@ pub(crate) fn detect_untested_functions( && !f.is_api && !f.is_test_helper && !f.is_trait_impl - && !config.is_ignored_function(&f.name) && !dead_names.contains(f.name.as_str()) && prod_calls.contains(&f.name) && !transitive_tested.contains(&f.name) diff --git a/src/adapters/config/architecture.rs b/src/adapters/config/architecture.rs index 5b96ff55..cc9cc2fd 100644 --- a/src/adapters/config/architecture.rs +++ b/src/adapters/config/architecture.rs @@ -253,7 +253,7 @@ pub struct TraitContract { /// /// `exclude_targets` is a glob list silencing Check-B for legitimately /// asymmetric target fns (setup, debug-only endpoints). Fn-level -/// escape via `// qual:allow(architecture)`. +/// escape via `// qual:allow(architecture, call_parity) reason: "…"`. #[derive(Debug, Deserialize, Clone)] #[serde(deny_unknown_fields)] pub struct CallParityConfig { @@ -350,8 +350,8 @@ pub struct CallParityConfig { /// severity tag. rustqual's default exit gate fails on **any** /// finding regardless of severity (use `--no-fail` for local /// exploration). To make a Check-C finding genuinely non-blocking - /// in CI, either suppress it via `// qual:allow(architecture)` or - /// set this field to `"off"`. + /// in CI, either suppress it via `// qual:allow(architecture, call_parity) + /// reason: "…"` or set this field to `"off"`. #[serde(default)] pub single_touchpoint: SingleTouchpointMode, } diff --git a/src/adapters/config/init.rs b/src/adapters/config/init.rs index 448390ba..ea602bd6 100644 --- a/src/adapters/config/init.rs +++ b/src/adapters/config/init.rs @@ -31,7 +31,8 @@ pub fn prepare_init_content(path: &Path) -> String { /// into `ProjectMetrics`. /// Integration: orchestrates parsing, scope build, analysis, extraction. fn compute_project_metrics(files: &[std::path::PathBuf], path: &Path) -> ProjectMetrics { - use crate::adapters::analyzers::iosp::{scope::ProjectScope, Analyzer}; + use crate::adapters::analyzers::iosp::Analyzer; + use crate::adapters::shared::project_scope::ProjectScope; use crate::adapters::source::filesystem::read_and_parse_files; use crate::config::Config; @@ -86,15 +87,6 @@ pub fn generate_default_config() -> &'static str { # Place this file in your project root. # Run `rustqual --init` to generate this file. -# ── Function Classification ────────────────────────────────────────────── - -# Function names (or glob patterns) to exclude from analysis. -# Examples: "main", "test_*", "visit_*" -ignore_functions = [ - "main", - "test_*", -] - # Glob patterns for files to exclude from analysis. # Examples: "generated/**", "tests/**" exclude_files = [] @@ -166,8 +158,7 @@ max_methods = 20 max_fan_out = 10 lcom4_threshold = 2 weights = [0.4, 0.25, 0.15, 0.2] -file_length_baseline = 300 -file_length_ceiling = 800 +file_length = 300 max_independent_clusters = 2 min_cluster_statements = 5 # Maximum number of parameters before a function triggers SRP-004. @@ -198,8 +189,7 @@ enabled = true [tests] # max_function_lines = 60 # overrides [complexity].max_function_lines -# file_length_baseline = 300 # overrides [srp].file_length_baseline -# file_length_ceiling = 600 # overrides [srp].file_length_ceiling +# file_length = 300 # overrides [srp].file_length # ── Quality Score Weights ────────────────────────────────────────────── # Weights for each dimension in the overall quality score. @@ -241,9 +231,6 @@ fn format_tailored_config(m: &ProjectMetrics, thresholds: &[usize; 4]) -> String # Thresholds are set to your current maximums + 20% headroom. # Tighten them over time as you improve code quality. -# ── Function Classification ────────────────────────────────────────────── - -ignore_functions = ["main", "test_*"] exclude_files = [] strict_closures = false strict_iterator_chains = false @@ -298,8 +285,7 @@ max_methods = 20 max_fan_out = 10 lcom4_threshold = 2 weights = [0.4, 0.25, 0.15, 0.2] -file_length_baseline = 300 -file_length_ceiling = 800 +file_length = 300 max_independent_clusters = 2 min_cluster_statements = 5 max_parameters = 5 @@ -326,8 +312,7 @@ enabled = true [tests] # max_function_lines = 60 # overrides [complexity].max_function_lines -# file_length_baseline = 300 # overrides [srp].file_length_baseline -# file_length_ceiling = 600 # overrides [srp].file_length_ceiling +# file_length = 300 # overrides [srp].file_length # ── Quality Score Weights ────────────────────────────────────────────── # Must sum to approximately 1.0. diff --git a/src/adapters/config/mod.rs b/src/adapters/config/mod.rs index eddb098e..1e308a7b 100644 --- a/src/adapters/config/mod.rs +++ b/src/adapters/config/mod.rs @@ -11,7 +11,7 @@ pub use init::{generate_default_config, generate_tailored_config}; use sections::DEFAULT_MAX_SUPPRESSION_RATIO; pub use sections::{ BoilerplateConfig, ComplexityConfig, CouplingConfig, DuplicatesConfig, ReportConfig, SrpConfig, - StructuralConfig, TestConfig, TestsConfig, WeightsConfig, + StructuralConfig, SuppressionConfig, TestConfig, TestsConfig, WeightsConfig, }; /// Configuration for the rustqual analyzer. @@ -20,9 +20,6 @@ pub use sections::{ #[derive(Debug, Deserialize, Clone)] #[serde(default, deny_unknown_fields)] pub struct Config { - /// Function name patterns to ignore entirely (e.g. test helpers, macros). - pub ignore_functions: Vec, - /// Glob patterns for files to exclude from analysis. pub exclude_files: Vec, @@ -72,16 +69,15 @@ pub struct Config { /// Architecture-Dimension configuration (v1.0). pub architecture: ArchitectureConfig, + /// Suppression-marker quality settings (e.g. too-loose pin headroom). + pub suppression: SuppressionConfig, + /// Quality score dimension weights. pub weights: WeightsConfig, /// Rustqual-wide report aggregation settings (workspace mode). pub report: ReportConfig, - /// Pre-compiled glob set for ignore_functions patterns. - #[serde(skip)] - compiled_ignore_fns: Option, - /// Pre-compiled glob set for exclude_files patterns. #[serde(skip)] compiled_exclude_files: Option, @@ -90,7 +86,6 @@ pub struct Config { impl Default for Config { fn default() -> Self { Self { - ignore_functions: vec![], exclude_files: vec![], strict_closures: false, strict_iterator_chains: false, @@ -107,9 +102,9 @@ impl Default for Config { test_quality: TestConfig::default(), tests: TestsConfig::default(), architecture: ArchitectureConfig::default(), + suppression: SuppressionConfig::default(), weights: WeightsConfig::default(), report: ReportConfig::default(), - compiled_ignore_fns: None, compiled_exclude_files: None, } } @@ -179,7 +174,6 @@ impl Config { /// Compile glob patterns into GlobSets for fast matching. /// Call this after loading or constructing a Config. pub fn compile(&mut self) { - self.compiled_ignore_fns = Some(build_globset(&self.ignore_functions)); self.compiled_exclude_files = Some(build_globset(&self.exclude_files)); } @@ -204,13 +198,6 @@ impl Config { .unwrap_or_else(|| Ok(Self::default())) } - /// Check if a function call path looks like an external/allowed call. - /// Check if a function name should be ignored (supports full glob patterns). - /// Trivial: single delegation to match_any_pattern. - pub fn is_ignored_function(&self, name: &str) -> bool { - match_any_pattern(&self.ignore_functions, &self.compiled_ignore_fns, name) - } - /// Check if a file path matches any exclude_files pattern. /// Trivial: single delegation to match_any_pattern. pub fn is_excluded_file(&self, path: &str) -> bool { @@ -232,5 +219,22 @@ pub fn validate_weights(config: &Config) -> Result<(), String> { Ok(()) } +/// Validate `[suppression]` settings. `pin_headroom` feeds the too-loose check +/// `pin > value * (1 + headroom)`, so a non-finite value (`inf`/`NaN`, both +/// accepted by TOML float parsing) would silently disable too-loose detection +/// and a negative value would make the threshold nonsensical — mirrors the +/// finite/non-negative guard on marker pins themselves. +/// Operation: range check, no own calls. +pub fn validate_suppression(config: &Config) -> Result<(), String> { + let h = config.suppression.pin_headroom; + if !h.is_finite() || h < 0.0 { + return Err(format!( + "[suppression].pin_headroom must be a finite, non-negative number, but is {h}. \ + Check rustqual.toml." + )); + } + Ok(()) +} + #[cfg(test)] mod tests; diff --git a/src/adapters/config/sections.rs b/src/adapters/config/sections.rs index 6f751f93..0c384b4a 100644 --- a/src/adapters/config/sections.rs +++ b/src/adapters/config/sections.rs @@ -4,6 +4,11 @@ use serde::Deserialize; pub const DEFAULT_MAX_SUPPRESSION_RATIO: f64 = 0.05; +/// How far above the actual metric value a `allow(dim, target=N)` pin may +/// sit before it is reported as a too-loose orphan. 0.10 = the pin may be +/// at most 10% above the value it covers; beyond that, tighten it to ~value. +pub const DEFAULT_PIN_HEADROOM: f64 = 0.10; + // Complexity pub const DEFAULT_COMPLEXITY_ENABLED: bool = true; pub const DEFAULT_MAX_COGNITIVE: usize = 15; @@ -35,8 +40,10 @@ pub const DEFAULT_SRP_MAX_FIELDS: usize = 12; pub const DEFAULT_SRP_MAX_METHODS: usize = 20; pub const DEFAULT_SRP_MAX_FAN_OUT: usize = 10; pub const DEFAULT_SRP_LCOM4_THRESHOLD: usize = 2; -pub const DEFAULT_SRP_FILE_LENGTH_BASELINE: usize = 300; -pub const DEFAULT_SRP_FILE_LENGTH_CEILING: usize = 800; +/// Highest production line count a file may have before SRP_MODULE fires. +/// A single threshold (no baseline/ceiling ramp): a file is flagged when +/// its production lines strictly exceed this value. +pub const DEFAULT_SRP_FILE_LENGTH: usize = 300; // Highest cluster count that still passes. A file with more than // this many independent function clusters is flagged as having // multiple responsibilities. Default `2` means 3+ clusters trigger @@ -170,8 +177,7 @@ pub struct SrpConfig { pub max_fan_out: usize, pub lcom4_threshold: usize, pub weights: [f64; 4], - pub file_length_baseline: usize, - pub file_length_ceiling: usize, + pub file_length: usize, pub max_independent_clusters: usize, pub min_cluster_statements: usize, pub max_parameters: usize, @@ -187,8 +193,7 @@ impl Default for SrpConfig { max_fan_out: DEFAULT_SRP_MAX_FAN_OUT, lcom4_threshold: DEFAULT_SRP_LCOM4_THRESHOLD, weights: [0.4, 0.25, 0.15, 0.2], - file_length_baseline: DEFAULT_SRP_FILE_LENGTH_BASELINE, - file_length_ceiling: DEFAULT_SRP_FILE_LENGTH_CEILING, + file_length: DEFAULT_SRP_FILE_LENGTH, max_independent_clusters: DEFAULT_SRP_MAX_INDEPENDENT_CLUSTERS, min_cluster_statements: DEFAULT_SRP_MIN_CLUSTER_STATEMENTS, max_parameters: DEFAULT_SRP_MAX_PARAMETERS, @@ -198,13 +203,14 @@ impl Default for SrpConfig { /// Per-test-code threshold overrides. /// -/// rustqual applies a curated subset of checks to test code — DRY-001/004/005 +/// rustqual applies a curated subset of checks to test code — DRY-001/003/005 /// (duplicate fns / fragments / repeated matches), LONG_FN (function length), /// and SRP file-length (SRP_MODULE). The god-struct check (SRP-001) also fires /// on test structs — a god-fixture is a real smell — but at production -/// thresholds, with no separate test knob (`// qual:allow(srp)` covers the rare -/// legitimate fixture). The remaining checks stay test-exempt: ERROR_HANDLING, -/// MAGIC_NUMBER, IOSP, DRY-002 dead code, DRY-003 wildcard imports, Coupling, +/// thresholds, with no separate test knob (`// qual:allow(srp, god_struct)` +/// covers the rare legitimate fixture). The remaining checks stay test-exempt: +/// ERROR_HANDLING, MAGIC_NUMBER, IOSP, DRY-002 dead code, DRY-004 wildcard +/// imports, Coupling, /// all Structural detectors, and the SRP *module*-cohesion (independent-cluster) /// check — a test file's independent `#[test]` fns are its purpose, not a smell. /// **This split is fixed — only the thresholds below are configurable.** @@ -218,10 +224,33 @@ impl Default for SrpConfig { pub struct TestsConfig { /// Overrides `[complexity].max_function_lines` for test fns (LONG_FN). pub max_function_lines: Option, - /// Overrides `[srp].file_length_baseline` for test files. - pub file_length_baseline: Option, - /// Overrides `[srp].file_length_ceiling` for test files. - pub file_length_ceiling: Option, + /// Overrides `[srp].file_length` for test files (SRP_MODULE). + pub file_length: Option, +} + +/// Configuration for suppression-marker quality checks. +/// +/// Today this holds a single knob, `pin_headroom`: a metric pin +/// `// qual:allow(dim, target=N)` is reported as a too-loose orphan when +/// `N` exceeds the actual value it covers by more than this fraction. A pin +/// at or below `value × (1 + pin_headroom)` is accepted; above it, the +/// author is told to tighten the pin to ~value or remove it. This keeps +/// pins honest — a pin parked far above the real metric silently absorbs +/// future regressions up to its ceiling. +#[derive(Debug, Deserialize, Clone)] +#[serde(default, deny_unknown_fields)] +pub struct SuppressionConfig { + /// Maximum fraction a metric pin may exceed the value it covers + /// before being flagged too-loose. Default `0.10` (10%). + pub pin_headroom: f64, +} + +impl Default for SuppressionConfig { + fn default() -> Self { + Self { + pin_headroom: DEFAULT_PIN_HEADROOM, + } + } } /// Configuration for coupling analysis. diff --git a/src/adapters/config/tests/init.rs b/src/adapters/config/tests/init.rs index ff353125..7689d4ac 100644 --- a/src/adapters/config/tests/init.rs +++ b/src/adapters/config/tests/init.rs @@ -39,7 +39,7 @@ fn test_generate_default_config_is_valid_toml() { #[test] fn test_generate_default_config_contents() { let content = generate_default_config(); - assert!(content.contains("ignore_functions")); + assert!(content.contains("exclude_files")); assert!(content.contains("strict_closures")); assert!(content.contains("allow_recursion")); assert!(content.contains("strict_error_propagation")); diff --git a/src/adapters/config/tests/root.rs b/src/adapters/config/tests/root.rs index 39db5501..8b6cc033 100644 --- a/src/adapters/config/tests/root.rs +++ b/src/adapters/config/tests/root.rs @@ -2,56 +2,7 @@ use crate::adapters::config::*; use std::fs; use tempfile::TempDir; -// ── is_ignored_function ─────────────────────────────────────────── - -#[test] -fn test_ignored_exact() { - let cfg = Config { - ignore_functions: vec!["main".into()], - ..Config::default() - }; - assert!(cfg.is_ignored_function("main")); -} - -#[test] -fn test_ignored_trailing_glob() { - let cfg = Config { - ignore_functions: vec!["test_*".into()], - ..Config::default() - }; - assert!(cfg.is_ignored_function("test_foo")); -} - -#[test] -fn test_ignored_no_match() { - let cfg = Config { - ignore_functions: vec!["test_*".into()], - ..Config::default() - }; - assert!(!cfg.is_ignored_function("helper")); -} - -#[test] -fn test_ignored_glob_not_prefix() { - let cfg = Config { - ignore_functions: vec!["test_*".into()], - ..Config::default() - }; - // "my_test" does NOT start with "test_", so it must not match. - assert!(!cfg.is_ignored_function("my_test")); -} - -#[test] -fn test_ignored_compiled_glob() { - let mut cfg = Config { - ignore_functions: vec!["test_*".into(), "main".into()], - ..Config::default() - }; - cfg.compile(); - assert!(cfg.is_ignored_function("test_foo")); - assert!(cfg.is_ignored_function("main")); - assert!(!cfg.is_ignored_function("helper")); -} +// ── exclude_files ───────────────────────────────────────────────── #[test] fn test_excluded_file_compiled() { @@ -70,7 +21,6 @@ fn test_excluded_file_compiled() { fn test_config_loads_rustqual_toml() { let tmp = TempDir::new().unwrap(); let toml_content = r#" -ignore_functions = ["skip_me"] exclude_files = ["generated/**"] strict_closures = true strict_iterator_chains = true @@ -78,13 +28,11 @@ strict_iterator_chains = true fs::write(tmp.path().join("rustqual.toml"), toml_content).unwrap(); let mut cfg = Config::load(tmp.path()).unwrap(); - assert_eq!(cfg.ignore_functions, vec!["skip_me"]); assert_eq!(cfg.exclude_files, vec!["generated/**"]); assert!(cfg.strict_closures); assert!(cfg.strict_iterator_chains); // Globs are compiled on demand via compile() cfg.compile(); - assert!(cfg.compiled_ignore_fns.is_some()); assert!(cfg.compiled_exclude_files.is_some()); } @@ -130,7 +78,6 @@ fn test_default_values() { assert!(!cfg.strict_iterator_chains); assert!(!cfg.allow_recursion); assert!(!cfg.strict_error_propagation); - assert!(cfg.ignore_functions.is_empty()); } #[test] @@ -204,3 +151,25 @@ fn test_validate_weights_bad_sum() { assert!(result.is_err()); assert!(result.unwrap_err().contains("must sum to 1.0")); } + +#[test] +fn test_validate_suppression_default_ok() { + assert!(validate_suppression(&Config::default()).is_ok()); +} + +#[test] +fn test_validate_suppression_rejects_non_finite_and_negative() { + // pin_headroom feeds `pin > value * (1 + headroom)`; inf/NaN disable the + // too-loose check, a negative headroom makes it nonsensical. Reject all. + for bad in [f64::INFINITY, f64::NAN, -0.1, -1.5] { + let mut cfg = Config::default(); + cfg.suppression.pin_headroom = bad; + let result = validate_suppression(&cfg); + assert!(result.is_err(), "pin_headroom {bad} must be rejected"); + assert!(result.unwrap_err().contains("pin_headroom")); + } + // 0.0 (no headroom) is valid + let mut cfg = Config::default(); + cfg.suppression.pin_headroom = 0.0; + assert!(validate_suppression(&cfg).is_ok()); +} diff --git a/src/adapters/config/tests/sections.rs b/src/adapters/config/tests/sections.rs index 627c7da4..e3ea4358 100644 --- a/src/adapters/config/tests/sections.rs +++ b/src/adapters/config/tests/sections.rs @@ -40,8 +40,7 @@ fn test_srp_config_defaults() { assert!((c.smell_threshold - DEFAULT_SRP_SMELL_THRESHOLD).abs() < f64::EPSILON); assert_eq!(c.max_fields, DEFAULT_SRP_MAX_FIELDS); assert_eq!(c.max_methods, DEFAULT_SRP_MAX_METHODS); - assert_eq!(c.file_length_baseline, DEFAULT_SRP_FILE_LENGTH_BASELINE); - assert_eq!(c.file_length_ceiling, DEFAULT_SRP_FILE_LENGTH_CEILING); + assert_eq!(c.file_length, DEFAULT_SRP_FILE_LENGTH); } #[test] @@ -96,28 +95,25 @@ fn test_tests_config_defaults_inherit_production() { // Every override is None by default → the production threshold is used. let c = TestsConfig::default(); assert_eq!(c.max_function_lines, None); - assert_eq!(c.file_length_baseline, None); - assert_eq!(c.file_length_ceiling, None); + assert_eq!(c.file_length, None); } #[test] fn test_tests_config_deserialize_overrides() { let toml_str = r#" max_function_lines = 120 - file_length_baseline = 500 - file_length_ceiling = 1200 + file_length = 500 "#; let c: TestsConfig = toml::from_str(toml_str).unwrap(); assert_eq!(c.max_function_lines, Some(120)); - assert_eq!(c.file_length_baseline, Some(500)); - assert_eq!(c.file_length_ceiling, Some(1200)); + assert_eq!(c.file_length, Some(500)); } #[test] fn test_tests_config_partial_override_leaves_rest_none() { let c: TestsConfig = toml::from_str("max_function_lines = 90").unwrap(); assert_eq!(c.max_function_lines, Some(90)); - assert_eq!(c.file_length_ceiling, None); + assert_eq!(c.file_length, None); } #[test] @@ -126,7 +122,7 @@ fn test_tests_config_rejects_unknown_field() { assert!(result.is_err(), "deny_unknown_fields must reject typos"); } -// qual:allow(test) reason: "verifies production constant, no function/type call needed" +// qual:allow(test_quality, no_sut) reason: "verifies production constant, no function/type call needed" #[test] fn test_quality_weights_sum_to_one() { let sum: f64 = DEFAULT_QUALITY_WEIGHTS.iter().sum(); @@ -226,6 +222,27 @@ fn test_report_config_rejects_unknown_fields() { assert!(result.is_err()); } +#[test] +fn test_suppression_config_default_pin_headroom() { + // A metric pin may sit at most 10% above the actual value before it + // is flagged as too-loose; the default headroom is 0.10. + let c = SuppressionConfig::default(); + assert!((c.pin_headroom - DEFAULT_PIN_HEADROOM).abs() < f64::EPSILON); + assert!((c.pin_headroom - 0.10).abs() < f64::EPSILON); +} + +#[test] +fn test_suppression_config_deserialize() { + let c: SuppressionConfig = toml::from_str("pin_headroom = 0.25").unwrap(); + assert!((c.pin_headroom - 0.25).abs() < f64::EPSILON); +} + +#[test] +fn test_suppression_config_rejects_unknown_field() { + let result: Result = toml::from_str("headroom = 0.1"); + assert!(result.is_err(), "deny_unknown_fields must reject typos"); +} + #[test] fn test_test_config_defaults() { let c = TestConfig::default(); diff --git a/src/adapters/report/ai/details.rs b/src/adapters/report/ai/details.rs index b0f30e46..7a736b2a 100644 --- a/src/adapters/report/ai/details.rs +++ b/src/adapters/report/ai/details.rs @@ -80,10 +80,7 @@ pub(super) fn srp_category_detail(f: &SrpFinding, config: &Config) -> (&'static independent_clusters, .. } => { - let length_part = format!( - "{production_lines} lines (max {})", - config.srp.file_length_baseline - ); + let length_part = format!("{production_lines} lines (max {})", config.srp.file_length); let cluster_part = if *independent_clusters > config.srp.max_independent_clusters { format!( ", {independent_clusters} independent clusters (max {})", diff --git a/src/adapters/report/ai/output.rs b/src/adapters/report/ai/output.rs index 0384020d..63f05a67 100644 --- a/src/adapters/report/ai/output.rs +++ b/src/adapters/report/ai/output.rs @@ -38,13 +38,16 @@ pub(super) fn orphan_suppression_entries( } else { dims.join(",") }; + let suffix = w.target_suffix(); + let word = w.kind.status_word(); let detail = match &w.reason { - Some(r) => format!("orphan suppression for {scope} — {r}"), - None => format!("orphan suppression for {scope}"), + Some(r) => format!("{word} orphan suppression for {scope}{suffix} — {r}"), + None => format!("{word} orphan suppression for {scope}{suffix}"), }; json!({ "file": w.file, "category": "orphan_suppression", + "kind": w.kind.json_kind(), "line": w.line, "fn": "", "detail": detail, diff --git a/src/adapters/report/findings_list/mod.rs b/src/adapters/report/findings_list/mod.rs index 8dc14bb0..20fd50cb 100644 --- a/src/adapters/report/findings_list/mod.rs +++ b/src/adapters/report/findings_list/mod.rs @@ -243,9 +243,11 @@ pub(crate) fn orphan_to_finding_entry(w: &OrphanSuppression) -> FindingEntry { } else { dims.join(",") }; + let word = w.kind.status_word(); + let suffix = w.target_suffix(); let detail = match &w.reason { - Some(r) => format!("stale qual:allow({scope}) — {r}"), - None => format!("stale qual:allow({scope})"), + Some(r) => format!("{word} qual:allow({scope}{suffix}) — {r}"), + None => format!("{word} qual:allow({scope}{suffix})"), }; FindingEntry::new(&w.file, w.line, "ORPHAN_SUPPRESSION", detail, String::new()) } diff --git a/src/adapters/report/github/format.rs b/src/adapters/report/github/format.rs index ed5a0e97..e7c2514a 100644 --- a/src/adapters/report/github/format.rs +++ b/src/adapters/report/github/format.rs @@ -187,11 +187,23 @@ pub(crate) fn format_orphan_suppressions( .collect::>() .join(",") }; - let msg = match &w.reason { - Some(r) => { - format!("Stale qual:allow({dims}) marker — no finding in window. Reason: {r}") - } - None => format!("Stale qual:allow({dims}) marker — no finding in window."), + use crate::domain::findings::OrphanKind; + let tgt = w.target_suffix(); + let msg = match w.kind { + OrphanKind::Stale => match &w.reason { + Some(r) => { + format!( + "Stale qual:allow({dims}{tgt}) marker — no finding in window. Reason: {r}" + ) + } + None => format!("Stale qual:allow({dims}{tgt}) marker — no finding in window."), + }, + OrphanKind::PinTooLoose => format!( + "Too-loose qual:allow({dims}{tgt}) pin — {}", + w.reason + .as_deref() + .unwrap_or("tighten the pin or remove it") + ), }; out.push_str(&located("warning", &w.file, w.line, &msg)); }); diff --git a/src/adapters/report/html/orphan_suppressions.rs b/src/adapters/report/html/orphan_suppressions.rs index b5a6ea2c..33b39ba9 100644 --- a/src/adapters/report/html/orphan_suppressions.rs +++ b/src/adapters/report/html/orphan_suppressions.rs @@ -11,7 +11,7 @@ pub(super) fn format_orphan_suppressions_section(orphans: &[OrphanSuppression]) "
\nOrphan Suppressions\n\
\n\ \n\ - \ + \ \n\n", ); orphans.iter().for_each(|w| html.push_str(&render_row(w))); @@ -20,7 +20,7 @@ pub(super) fn format_orphan_suppressions_section(orphans: &[OrphanSuppression]) } fn render_row(w: &OrphanSuppression) -> String { - let scope = if w.dimensions.is_empty() { + let dims = if w.dimensions.is_empty() { "<all>".to_string() } else { w.dimensions @@ -29,11 +29,14 @@ fn render_row(w: &OrphanSuppression) -> String { .collect::>() .join(", ") }; + // `target_suffix` already starts with ", "; escape it for the cell. + let scope = format!("{dims}{}", html_escape(&w.target_suffix())); let reason = w.reason.as_deref().map(html_escape).unwrap_or_default(); format!( - "\n", + "\n", html_escape(&w.file), w.line, + w.kind.status_word(), scope, reason, ) diff --git a/src/adapters/report/html/tests/root.rs b/src/adapters/report/html/tests/root.rs index 62dd764c..56419bd1 100644 --- a/src/adapters/report/html/tests/root.rs +++ b/src/adapters/report/html/tests/root.rs @@ -221,6 +221,8 @@ fn html_reporter_renders_orphans_via_snapshot_view() { line: 42, dimensions: vec![crate::findings::Dimension::Iosp], reason: Some("legacy".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; // Reporter struct WITHOUT the orphan_suppressions field — the // bypass path is gone; only the trait-driven snapshot view is left. @@ -236,4 +238,8 @@ fn html_reporter_renders_orphans_via_snapshot_view() { html.contains("Orphan") || html.contains("ORPHAN"), "HTML must include orphan section heading from snapshot.orphans, got:\n{html}" ); + assert!( + html.contains("") && html.contains(""), + "HTML orphan table must carry a Status column, got:\n{html}" + ); } diff --git a/src/adapters/report/json/misc.rs b/src/adapters/report/json/misc.rs index 2e659185..d5e11f74 100644 --- a/src/adapters/report/json/misc.rs +++ b/src/adapters/report/json/misc.rs @@ -71,7 +71,9 @@ pub(super) fn build_orphans( .map(|w| JsonOrphanSuppression { file: w.file.clone(), line: w.line, + kind: w.kind.json_kind(), dimensions: w.dimensions.iter().map(|d| format!("{d}")).collect(), + target: w.target_spec(), reason: w.reason.clone(), }) .collect() diff --git a/src/adapters/report/json_types.rs b/src/adapters/report/json_types.rs index 390a1e3c..f3c6b6d0 100644 --- a/src/adapters/report/json_types.rs +++ b/src/adapters/report/json_types.rs @@ -45,14 +45,23 @@ pub(crate) struct JsonArchitectureFinding { pub(crate) suppressed: bool, } -/// `// qual:allow(...)` marker that matched no finding in its window. +/// `// qual:allow(...)` marker reported as stale (matched no finding) or +/// too-loose (a metric pin too far above the value it covers). See `kind`. /// `pub` (not `pub(crate)`) because it surfaces as `JsonReporter::OrphanView` /// — a per-reporter view type on the public `ReporterImpl` trait. #[derive(serde::Serialize)] pub struct JsonOrphanSuppression { pub(crate) file: String, pub(crate) line: usize, + /// Why the marker is reported: `"stale"` (delete it) or `"too_loose"` + /// (tighten the pin) — a stable token so CI consumers branch on the remedy. + pub(crate) kind: &'static str, pub(crate) dimensions: Vec, + /// The targeted finding-kind (`"file_length=400"`, `"god_struct"`), absent + /// for a blanket/invalid marker — so consumers see which target is being + /// reported (stale or, for a metric pin, too-loose). + #[serde(skip_serializing_if = "Option::is_none")] + pub(crate) target: Option, #[serde(skip_serializing_if = "Option::is_none")] pub(crate) reason: Option, } diff --git a/src/adapters/report/mod.rs b/src/adapters/report/mod.rs index 6cc20ecc..1c7dbc2b 100644 --- a/src/adapters/report/mod.rs +++ b/src/adapters/report/mod.rs @@ -1,4 +1,3 @@ -// qual:allow(coupling) reason: "report naturally depends on all analysis modules" mod ai; mod baseline; mod dot; @@ -40,7 +39,8 @@ pub struct AnalysisResult { /// `Reporter` trait (in `ports::reporter`) consumes. Populated by /// projection adapters during analysis. Includes the cross-cutting /// `orphan_suppressions` field carrying `// qual:allow(...)` markers - /// that matched no finding in their annotation window. + /// that should be reported — stale (matched no finding) or too-loose + /// (a metric pin sitting too far above the value it covers). pub findings: crate::domain::AnalysisFindings, /// Typed state-of-codebase data — counterpart to `findings`, the /// payload `AnalysisReporter` consumes. Carries per-function @@ -121,10 +121,10 @@ pub struct Summary { pub all_suppressions: usize, /// Whether the suppression ratio exceeds the configured maximum. pub suppression_ratio_exceeded: bool, - /// Number of `// qual:allow(...)` markers that did not match any - /// finding within their annotation window. Orphan markers are - /// typically stale suppressions (the underlying finding was fixed - /// or moved) or misplaced annotations. + /// Number of reported `// qual:allow(...)` markers: stale (matched no + /// finding in their annotation window — a fixed/moved finding or a + /// misplaced annotation) plus too-loose metric pins (sitting further + /// above the value they cover than `pin_headroom` allows). pub orphan_suppressions: usize, } diff --git a/src/adapters/report/sarif/mod.rs b/src/adapters/report/sarif/mod.rs index 3ca0d06a..5f4e0794 100644 --- a/src/adapters/report/sarif/mod.rs +++ b/src/adapters/report/sarif/mod.rs @@ -14,7 +14,7 @@ use serde_json::{json, Value}; use crate::domain::analysis_data::{FunctionRecord, ModuleCouplingRecord}; use crate::domain::findings::{ ArchitectureFinding, ComplexityFinding, ComplexityFindingKind, CouplingFinding, - CouplingFindingDetails, DryFinding, DryFindingDetails, DryFindingKind, IospFinding, + CouplingFindingDetails, DryFinding, DryFindingDetails, DryFindingKind, IospFinding, OrphanKind, OrphanSuppression, SrpFinding, SrpFindingDetails, SrpFindingKind, TqFinding, TqFindingKind, }; use crate::ports::reporter::{ReporterImpl, Snapshot}; @@ -237,11 +237,22 @@ fn orphan_suppression_results(orphans: &[OrphanSuppression]) -> Vec { .collect::>() .join(",") }; - let message = match &w.reason { - Some(r) => format!( - "Stale qual:allow({dims}) marker — no finding in window. Reason was: {r}" + let tgt = w.target_suffix(); + let message = match w.kind { + OrphanKind::Stale => match &w.reason { + Some(r) => format!( + "Stale qual:allow({dims}{tgt}) marker — no finding in window. Reason was: {r}" + ), + None => { + format!("Stale qual:allow({dims}{tgt}) marker — no finding in window.") + } + }, + OrphanKind::PinTooLoose => format!( + "Too-loose qual:allow({dims}{tgt}) pin — {}", + w.reason + .as_deref() + .unwrap_or("tighten the pin or remove it") ), - None => format!("Stale qual:allow({dims}) marker — no finding in window."), }; json!({ "ruleId": "ORPHAN-001", diff --git a/src/adapters/report/sarif/tests/root/orphan_and_architecture.rs b/src/adapters/report/sarif/tests/root/orphan_and_architecture.rs index 97486ace..c33ec921 100644 --- a/src/adapters/report/sarif/tests/root/orphan_and_architecture.rs +++ b/src/adapters/report/sarif/tests/root/orphan_and_architecture.rs @@ -13,6 +13,8 @@ fn sarif_reporter_emits_orphan_results_via_snapshot_view() { line: 42, dimensions: vec![crate::findings::Dimension::Srp], reason: Some("legacy marker".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; let orphan = sarif_result_by_rule(&analysis, "ORPHAN-001"); assert_eq!(orphan["level"], "warning"); diff --git a/src/adapters/report/tests/ai/smoke_and_orphan.rs b/src/adapters/report/tests/ai/smoke_and_orphan.rs index 25e7ae46..ff709ddc 100644 --- a/src/adapters/report/tests/ai/smoke_and_orphan.rs +++ b/src/adapters/report/tests/ai/smoke_and_orphan.rs @@ -86,6 +86,8 @@ fn ai_reporter_includes_orphan_entries_via_snapshot_view() { line: 42, dimensions: vec![crate::findings::Dimension::Srp], reason: Some("legacy".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; let config = Config::default(); let value = build_ai_value(&analysis, &config); @@ -105,4 +107,12 @@ fn ai_reporter_includes_orphan_entries_via_snapshot_view() { .find(|e| e["category"] == "orphan_suppression") .expect("orphan entry under src/foo.rs"); assert_eq!(orphan["line"], 42); + assert_eq!(orphan["kind"], "stale", "AI must project the orphan kind"); + assert!( + orphan["detail"] + .as_str() + .unwrap_or_default() + .starts_with("stale"), + "AI detail must lead with the status word, got {orphan}" + ); } diff --git a/src/adapters/report/tests/dot.rs b/src/adapters/report/tests/dot.rs index 7a0e17ce..9f43076f 100644 --- a/src/adapters/report/tests/dot.rs +++ b/src/adapters/report/tests/dot.rs @@ -150,6 +150,8 @@ fn dot_reporter_intentionally_omits_orphan_rendering() { line: 42, dimensions: vec![crate::findings::Dimension::Iosp], reason: Some("legacy".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; let out = DotReporter.render(&findings, &data); assert!( diff --git a/src/adapters/report/tests/findings_list.rs b/src/adapters/report/tests/findings_list.rs index 5077c536..98c4ffbe 100644 --- a/src/adapters/report/tests/findings_list.rs +++ b/src/adapters/report/tests/findings_list.rs @@ -221,6 +221,8 @@ fn findings_list_includes_orphan_suppressions_via_snapshot_view() { line: 42, dimensions: vec![crate::findings::Dimension::Srp], reason: Some("legacy marker".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; let findings = collect_all_findings(&analysis); assert_eq!(findings.len(), 1); diff --git a/src/adapters/report/tests/github/rendering.rs b/src/adapters/report/tests/github/rendering.rs index 1a6504b4..afb45450 100644 --- a/src/adapters/report/tests/github/rendering.rs +++ b/src/adapters/report/tests/github/rendering.rs @@ -115,6 +115,8 @@ fn github_reporter_emits_orphan_annotations_via_snapshot_view() { line: 42, dimensions: vec![crate::findings::Dimension::Srp], reason: Some("legacy".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; let reporter = GithubReporter { summary: &summary }; let out = reporter.render(&findings, &crate::domain::AnalysisData::default()); diff --git a/src/adapters/report/tests/json/summary_fields_and_orphan.rs b/src/adapters/report/tests/json/summary_fields_and_orphan.rs index 76596477..a7289ad4 100644 --- a/src/adapters/report/tests/json/summary_fields_and_orphan.rs +++ b/src/adapters/report/tests/json/summary_fields_and_orphan.rs @@ -95,16 +95,42 @@ fn json_reporter_includes_orphan_suppressions_via_snapshot_view() { line: 42, dimensions: vec![crate::findings::Dimension::Srp], reason: Some("legacy".into()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }]; let parsed = json_value(&analysis); let arr = parsed["orphan_suppressions"].as_array().unwrap(); assert_eq!(arr.len(), 1); assert_eq!(arr[0]["file"], "src/foo.rs"); assert_eq!(arr[0]["line"], 42); + assert_eq!(arr[0]["kind"], "stale"); assert_eq!(arr[0]["dimensions"][0], "srp"); assert_eq!(arr[0]["reason"], "legacy"); } +#[test] +fn json_orphan_projects_too_loose_kind_and_target() { + // The structured format must carry the remedy (stale vs too_loose) and the + // pinned target, so CI consumers don't have to parse the human message. + use crate::domain::findings::{OrphanKind, OrphanSuppression}; + use crate::domain::SuppressionTarget; + let mut analysis = make_analysis(vec![]); + analysis.findings.orphan_suppressions = vec![OrphanSuppression { + file: "src/foo.rs".into(), + line: 7, + dimensions: vec![crate::findings::Dimension::Srp], + target: Some(SuppressionTarget::Metric { + name: "file_length".into(), + pin: 400.0, + }), + reason: Some("tighten to ~305".into()), + kind: OrphanKind::PinTooLoose, + }]; + let o = &json_value(&analysis)["orphan_suppressions"][0]; + assert_eq!(o["kind"], "too_loose"); + assert_eq!(o["target"], "file_length=400"); +} + #[test] fn test_json_omits_empty_orphan_suppressions() { // When the list is empty (clean codebase), the field is elided diff --git a/src/adapters/report/text/mod.rs b/src/adapters/report/text/mod.rs index 3524dacb..3ca24955 100644 --- a/src/adapters/report/text/mod.rs +++ b/src/adapters/report/text/mod.rs @@ -135,6 +135,9 @@ impl<'a> ReporterImpl for TextReporter<'a> { } else { out.push_str(&format_findings_list(&all_entries)); } + if !all_entries.is_empty() { + out.push_str(&suppression_footer()); + } if let Some(s) = self.suggestions_text { out.push_str(s); } @@ -142,6 +145,17 @@ impl<'a> ReporterImpl for TextReporter<'a> { } } +/// Footer shown whenever findings remain: fixing is the expectation, +/// suppression the last resort. Points at `--explain allow` (the agent reaches +/// for the tool before the README), and deliberately prints no paste-ready +/// suppression so silencing isn't the path of least resistance. +/// Operation: constant string. +fn suppression_footer() -> String { + "\n── Fix the findings above. Suppression is a last resort — it needs a written\n \ + reason and re-fires when the code worsens. Syntax: rustqual --explain allow\n" + .to_string() +} + /// Format the findings list with heading. pub(super) fn format_findings_list(entries: &[FindingEntry]) -> String { if entries.is_empty() { diff --git a/src/adapters/report/text/tests/root.rs b/src/adapters/report/text/tests/root.rs index f29fd378..f7a75310 100644 --- a/src/adapters/report/text/tests/root.rs +++ b/src/adapters/report/text/tests/root.rs @@ -150,6 +150,8 @@ fn text_reporter_renders_orphans_via_snapshot_view() { line: 42, dimensions: vec![Dimension::Iosp], reason: Some("legacy".to_string()), + target: None, + kind: crate::domain::findings::OrphanKind::Stale, }], ..Default::default() }; diff --git a/src/adapters/shared/declared_function.rs b/src/adapters/shared/declared_function.rs new file mode 100644 index 00000000..c65b5c06 --- /dev/null +++ b/src/adapters/shared/declared_function.rs @@ -0,0 +1,23 @@ +//! `DeclaredFunction` — metadata about a declared function, shared across +//! analyzers (DRY dead-code analysis, TQ untested/SUT checks). A plain data +//! type with no analyzer dependency, so it lives in `shared/` rather than +//! inside one analyzer that others reach into. + +/// A declared function with metadata for dead-code / test-quality analysis. +pub struct DeclaredFunction { + pub name: String, + pub qualified_name: String, + pub file: String, + pub line: usize, + pub is_test: bool, + pub is_main: bool, + pub is_trait_impl: bool, + pub has_allow_dead_code: bool, + /// Whether this function is marked as public API via `// qual:api`. + pub is_api: bool, + /// Whether this function is marked as a test-only helper via + /// `// qual:test_helper`. Narrowly excludes the DRY-002 `testonly` + /// dead-code finding and TQ-003 (untested) without disabling + /// other checks. + pub is_test_helper: bool, +} diff --git a/src/adapters/shared/file_visitor.rs b/src/adapters/shared/file_visitor.rs new file mode 100644 index 00000000..70d3f072 --- /dev/null +++ b/src/adapters/shared/file_visitor.rs @@ -0,0 +1,25 @@ +//! Generic per-file AST visitor infrastructure shared across analyzers. +//! +//! A small utility (no analyzer dependency) so any dimension can walk every +//! parsed file with a stateful `syn` visitor, resetting per-file state between +//! files. Lives in `shared/` so analyzers consume it directly rather than +//! reaching into one another. + +use syn::visit::Visit; + +/// Trait for AST visitors that need per-file state reset. +pub(crate) trait FileVisitor { + fn reset_for_file(&mut self, file_path: &str); +} + +/// Visit all parsed files with a visitor, resetting per-file state. +/// Trivial: iteration with trait method call. +pub(crate) fn visit_all_files<'a, V>(parsed: &'a [(String, String, syn::File)], visitor: &mut V) +where + V: FileVisitor + Visit<'a>, +{ + parsed.iter().for_each(|(path, _, file)| { + visitor.reset_for_file(path); + syn::visit::visit_file(visitor, file); + }); +} diff --git a/src/adapters/shared/mod.rs b/src/adapters/shared/mod.rs index 41e5e713..e5480d93 100644 --- a/src/adapters/shared/mod.rs +++ b/src/adapters/shared/mod.rs @@ -6,9 +6,13 @@ //! depend on a specific analyzer. pub mod cfg_test; pub mod cfg_test_files; +pub mod declared_function; pub mod file_to_module; +pub mod file_visitor; pub mod macro_expansion; pub mod normalize; +pub mod project_scope; +pub mod test_references; pub mod use_tree; #[cfg(test)] diff --git a/src/adapters/shared/normalize.rs b/src/adapters/shared/normalize.rs deleted file mode 100644 index ed60b6d8..00000000 --- a/src/adapters/shared/normalize.rs +++ /dev/null @@ -1,564 +0,0 @@ -// qual:allow(srp) reason: "Single normalizer visitor; handles many syn expression types" -use std::collections::{HashMap, HashSet}; -use std::hash::{Hash, Hasher}; - -use syn::visit::Visit; - -// ── Token types ───────────────────────────────────────────────── - -/// A normalized AST token with variable names replaced by positional indices, -/// literal values erased to type placeholders, and structural tokens preserved. -#[derive(Debug, Clone, PartialEq, Eq, Hash)] -pub enum NormalizedToken { - /// Control flow keyword (if, for, while, match, loop, return, break, continue, let, else, etc.) - Keyword(&'static str), - /// Binary/unary/assignment operator as its token string. - Operator(&'static str), - /// Variable/parameter name replaced with first-seen positional index. - Ident(usize), - /// Method call — name preserved (structurally significant). - MethodCall(String), - /// Field access (e.g. self.field_name) — name preserved. - FieldAccess(String), - /// Integer literal (value erased). - IntLit, - /// Float literal (value erased). - FloatLit, - /// String/byte-string literal (value erased). - StrLit, - /// Boolean literal — value preserved (semantically significant). - BoolLit(bool), - /// Char/byte literal (value erased). - CharLit, - /// Macro invocation — name preserved. - MacroCall(String), - /// Statement terminator. - Semi, -} - -// ── Public API ────────────────────────────────────────────────── - -/// Normalize a function body into a flat token stream. -/// Operation: creates normalizer inline (no own calls), delegates to syn visitor. -pub fn normalize_body(body: &syn::Block) -> Vec { - let mut n = Normalizer { - tokens: Vec::new(), - ident_map: HashMap::new(), - next_ident_id: 0, - }; - syn::visit::visit_block(&mut n, body); - n.tokens -} - -/// Normalize a slice of statements with a fresh identifier mapping. -/// Operation: creates normalizer inline, iterates statements. -/// Used for sliding-window fragment detection (Phase 5). -pub fn normalize_stmts(stmts: &[syn::Stmt]) -> Vec { - let mut n = Normalizer { - tokens: Vec::new(), - ident_map: HashMap::new(), - next_ident_id: 0, - }; - stmts.iter().for_each(|stmt| n.visit_stmt(stmt)); - n.tokens -} - -/// Compute a structural hash from a normalized token stream. -/// Operation: hashing logic, no own calls. -pub fn structural_hash(tokens: &[NormalizedToken]) -> u64 { - let mut hasher = std::collections::hash_map::DefaultHasher::new(); - tokens.hash(&mut hasher); - hasher.finish() -} - -/// Compute multiset Jaccard similarity between two token streams. -/// Operation: counting + arithmetic logic, no own calls. -/// Returns 1.0 for identical streams, 0.0 for completely disjoint. -pub fn jaccard_similarity(a: &[NormalizedToken], b: &[NormalizedToken]) -> f64 { - if a.is_empty() && b.is_empty() { - return 1.0; - } - if a.is_empty() || b.is_empty() { - return 0.0; - } - - let mut counts_a: HashMap<&NormalizedToken, usize> = HashMap::new(); - for t in a { - *counts_a.entry(t).or_insert(0) += 1; - } - let mut counts_b: HashMap<&NormalizedToken, usize> = HashMap::new(); - for t in b { - *counts_b.entry(t).or_insert(0) += 1; - } - - let all_keys: HashSet<&NormalizedToken> = - counts_a.keys().chain(counts_b.keys()).copied().collect(); - - let mut intersection = 0usize; - let mut union = 0usize; - for key in all_keys { - let ca = counts_a.get(key).copied().unwrap_or(0); - let cb = counts_b.get(key).copied().unwrap_or(0); - intersection += ca.min(cb); - union += ca.max(cb); - } - - if union == 0 { - 1.0 - } else { - intersection as f64 / union as f64 - } -} - -// ── Normalizer (private) ──────────────────────────────────────── - -/// AST walker that produces normalized tokens. -struct Normalizer { - tokens: Vec, - ident_map: HashMap, - next_ident_id: usize, -} - -impl Normalizer { - /// Resolve an identifier name to a positional index (assign on first encounter). - fn resolve_ident(&mut self, name: &str) -> usize { - if let Some(&id) = self.ident_map.get(name) { - id - } else { - let id = self.next_ident_id; - self.next_ident_id += 1; - self.ident_map.insert(name.to_string(), id); - id - } - } -} - -// ── Operator helpers ──────────────────────────────────────────── - -/// Convert a binary operator to its string representation. -/// Operation: pure lookup table. -fn bin_op_str(op: &syn::BinOp) -> &'static str { - match op { - syn::BinOp::Add(_) => "+", - syn::BinOp::Sub(_) => "-", - syn::BinOp::Mul(_) => "*", - syn::BinOp::Div(_) => "/", - syn::BinOp::Rem(_) => "%", - syn::BinOp::And(_) => "&&", - syn::BinOp::Or(_) => "||", - syn::BinOp::BitXor(_) => "^", - syn::BinOp::BitAnd(_) => "&", - syn::BinOp::BitOr(_) => "|", - syn::BinOp::Shl(_) => "<<", - syn::BinOp::Shr(_) => ">>", - syn::BinOp::Eq(_) => "==", - syn::BinOp::Lt(_) => "<", - syn::BinOp::Le(_) => "<=", - syn::BinOp::Ne(_) => "!=", - syn::BinOp::Ge(_) => ">=", - syn::BinOp::Gt(_) => ">", - syn::BinOp::AddAssign(_) => "+=", - syn::BinOp::SubAssign(_) => "-=", - syn::BinOp::MulAssign(_) => "*=", - syn::BinOp::DivAssign(_) => "/=", - syn::BinOp::RemAssign(_) => "%=", - syn::BinOp::BitXorAssign(_) => "^=", - syn::BinOp::BitAndAssign(_) => "&=", - syn::BinOp::BitOrAssign(_) => "|=", - syn::BinOp::ShlAssign(_) => "<<=", - syn::BinOp::ShrAssign(_) => ">>=", - _ => "?op", - } -} - -/// Convert a unary operator to its string representation. -/// Operation: pure lookup table. -fn un_op_str(op: &syn::UnOp) -> &'static str { - match op { - syn::UnOp::Deref(_) => "*", - syn::UnOp::Not(_) => "!", - syn::UnOp::Neg(_) => "-", - _ => "?un", - } -} - -// ── syn::visit::Visit implementation ──────────────────────────── - -impl<'ast> Visit<'ast> for Normalizer { - fn visit_stmt(&mut self, stmt: &'ast syn::Stmt) { - match stmt { - syn::Stmt::Local(local) => { - self.tokens.push(NormalizedToken::Keyword("let")); - self.visit_pat(&local.pat); - if let Some(init) = &local.init { - self.tokens.push(NormalizedToken::Operator("=")); - self.visit_expr(&init.expr); - if let Some((_, diverge)) = &init.diverge { - self.tokens.push(NormalizedToken::Keyword("else")); - self.visit_expr(diverge); - } - } - self.tokens.push(NormalizedToken::Semi); - } - syn::Stmt::Expr(expr, semi) => { - self.visit_expr(expr); - if semi.is_some() { - self.tokens.push(NormalizedToken::Semi); - } - } - syn::Stmt::Macro(m) => { - let name = m - .mac - .path - .segments - .last() - .map(|s| s.ident.to_string()) - .unwrap_or_default(); - self.tokens.push(NormalizedToken::MacroCall(name)); - self.tokens.push(NormalizedToken::Semi); - } - syn::Stmt::Item(_) => { /* skip items in function bodies */ } - } - } - - fn visit_expr(&mut self, expr: &'ast syn::Expr) { - match expr { - // ── Literals ──────────────────────────────────── - syn::Expr::Lit(lit) => match &lit.lit { - syn::Lit::Int(_) => self.tokens.push(NormalizedToken::IntLit), - syn::Lit::Float(_) => self.tokens.push(NormalizedToken::FloatLit), - syn::Lit::Str(_) | syn::Lit::ByteStr(_) => { - self.tokens.push(NormalizedToken::StrLit); - } - syn::Lit::Bool(b) => self.tokens.push(NormalizedToken::BoolLit(b.value)), - syn::Lit::Char(_) | syn::Lit::Byte(_) => { - self.tokens.push(NormalizedToken::CharLit); - } - _ => {} - }, - - // ── Identifiers / paths ───────────────────────── - syn::Expr::Path(p) => { - if p.path.segments.len() == 1 { - let name = p.path.segments[0].ident.to_string(); - let id = self.resolve_ident(&name); - self.tokens.push(NormalizedToken::Ident(id)); - } - // Multi-segment paths (std::io::Error, Type::method) are external - // references — not normalized for DRY detection. - } - - // ── Operators ─────────────────────────────────── - syn::Expr::Binary(e) => { - self.visit_expr(&e.left); - self.tokens - .push(NormalizedToken::Operator(bin_op_str(&e.op))); - self.visit_expr(&e.right); - } - syn::Expr::Unary(e) => { - self.tokens - .push(NormalizedToken::Operator(un_op_str(&e.op))); - self.visit_expr(&e.expr); - } - syn::Expr::Assign(e) => { - self.visit_expr(&e.left); - self.tokens.push(NormalizedToken::Operator("=")); - self.visit_expr(&e.right); - } - - // ── Calls ─────────────────────────────────────── - syn::Expr::Call(e) => { - self.visit_expr(&e.func); - for arg in &e.args { - self.visit_expr(arg); - } - } - syn::Expr::MethodCall(e) => { - self.visit_expr(&e.receiver); - self.tokens - .push(NormalizedToken::MethodCall(e.method.to_string())); - for arg in &e.args { - self.visit_expr(arg); - } - } - - // ── Field access ──────────────────────────────── - syn::Expr::Field(e) => { - self.visit_expr(&e.base); - let field_name = match &e.member { - syn::Member::Named(ident) => ident.to_string(), - syn::Member::Unnamed(idx) => idx.index.to_string(), - }; - self.tokens.push(NormalizedToken::FieldAccess(field_name)); - } - - // ── Control flow ──────────────────────────────── - syn::Expr::If(e) => { - self.tokens.push(NormalizedToken::Keyword("if")); - self.visit_expr(&e.cond); - for stmt in &e.then_branch.stmts { - self.visit_stmt(stmt); - } - if let Some((_, else_branch)) = &e.else_branch { - self.tokens.push(NormalizedToken::Keyword("else")); - self.visit_expr(else_branch); - } - } - syn::Expr::Match(e) => { - self.tokens.push(NormalizedToken::Keyword("match")); - self.visit_expr(&e.expr); - for arm in &e.arms { - self.visit_pat(&arm.pat); - if let Some((_, guard)) = &arm.guard { - self.tokens.push(NormalizedToken::Keyword("if")); - self.visit_expr(guard); - } - self.tokens.push(NormalizedToken::Operator("=>")); - self.visit_expr(&arm.body); - } - } - syn::Expr::ForLoop(e) => { - self.tokens.push(NormalizedToken::Keyword("for")); - self.visit_pat(&e.pat); - self.tokens.push(NormalizedToken::Keyword("in")); - self.visit_expr(&e.expr); - for stmt in &e.body.stmts { - self.visit_stmt(stmt); - } - } - syn::Expr::While(e) => { - self.tokens.push(NormalizedToken::Keyword("while")); - self.visit_expr(&e.cond); - for stmt in &e.body.stmts { - self.visit_stmt(stmt); - } - } - syn::Expr::Loop(e) => { - self.tokens.push(NormalizedToken::Keyword("loop")); - for stmt in &e.body.stmts { - self.visit_stmt(stmt); - } - } - syn::Expr::Block(e) => { - for stmt in &e.block.stmts { - self.visit_stmt(stmt); - } - } - - // ── Jump statements ───────────────────────────── - syn::Expr::Return(e) => { - self.tokens.push(NormalizedToken::Keyword("return")); - if let Some(expr) = &e.expr { - self.visit_expr(expr); - } - } - syn::Expr::Break(e) => { - self.tokens.push(NormalizedToken::Keyword("break")); - if let Some(expr) = &e.expr { - self.visit_expr(expr); - } - } - syn::Expr::Continue(_) => { - self.tokens.push(NormalizedToken::Keyword("continue")); - } - - // ── Compound expressions ──────────────────────── - syn::Expr::Reference(e) => { - self.tokens.push(NormalizedToken::Operator("&")); - if e.mutability.is_some() { - self.tokens.push(NormalizedToken::Keyword("mut")); - } - self.visit_expr(&e.expr); - } - syn::Expr::Index(e) => { - self.visit_expr(&e.expr); - self.tokens.push(NormalizedToken::Operator("[]")); - self.visit_expr(&e.index); - } - syn::Expr::Tuple(e) => { - self.tokens.push(NormalizedToken::Keyword("tuple")); - for elem in &e.elems { - self.visit_expr(elem); - } - } - syn::Expr::Array(e) => { - self.tokens.push(NormalizedToken::Keyword("array")); - for elem in &e.elems { - self.visit_expr(elem); - } - } - syn::Expr::Closure(e) => { - self.tokens.push(NormalizedToken::Keyword("closure")); - for input in &e.inputs { - self.visit_pat(input); - } - self.visit_expr(&e.body); - } - syn::Expr::Try(e) => { - self.visit_expr(&e.expr); - self.tokens.push(NormalizedToken::Operator("?")); - } - syn::Expr::Await(e) => { - self.visit_expr(&e.base); - self.tokens.push(NormalizedToken::Keyword("await")); - } - syn::Expr::Range(e) => { - if let Some(start) = &e.start { - self.visit_expr(start); - } - self.tokens.push(NormalizedToken::Operator("..")); - if let Some(end) = &e.end { - self.visit_expr(end); - } - } - syn::Expr::Cast(e) => { - self.visit_expr(&e.expr); - self.tokens.push(NormalizedToken::Keyword("as")); - } - syn::Expr::Paren(e) => { - // Skip parentheses — they're structural noise - self.visit_expr(&e.expr); - } - syn::Expr::Repeat(e) => { - self.tokens.push(NormalizedToken::Keyword("array")); - self.visit_expr(&e.expr); - self.visit_expr(&e.len); - } - syn::Expr::Let(e) => { - self.tokens.push(NormalizedToken::Keyword("let")); - self.visit_pat(&e.pat); - self.tokens.push(NormalizedToken::Operator("=")); - self.visit_expr(&e.expr); - } - syn::Expr::Struct(e) => { - self.tokens.push(NormalizedToken::Keyword("struct")); - for field in &e.fields { - if let syn::Member::Named(ident) = &field.member { - self.tokens - .push(NormalizedToken::FieldAccess(ident.to_string())); - } - self.visit_expr(&field.expr); - } - if let Some(rest) = &e.rest { - self.tokens.push(NormalizedToken::Operator("..")); - self.visit_expr(rest); - } - } - syn::Expr::Yield(e) => { - self.tokens.push(NormalizedToken::Keyword("yield")); - if let Some(expr) = &e.expr { - self.visit_expr(expr); - } - } - syn::Expr::Macro(m) => { - let name = m - .mac - .path - .segments - .last() - .map(|s| s.ident.to_string()) - .unwrap_or_default(); - self.tokens.push(NormalizedToken::MacroCall(name)); - } - - // ── Fallback: let syn's default visitor recurse ─ - _ => { - syn::visit::visit_expr(self, expr); - } - } - } - - fn visit_pat(&mut self, pat: &'ast syn::Pat) { - match pat { - syn::Pat::Ident(p) => { - if p.mutability.is_some() { - self.tokens.push(NormalizedToken::Keyword("mut")); - } - let id = self.resolve_ident(&p.ident.to_string()); - self.tokens.push(NormalizedToken::Ident(id)); - if let Some((_, sub)) = &p.subpat { - self.tokens.push(NormalizedToken::Operator("@")); - self.visit_pat(sub); - } - } - syn::Pat::Wild(_) => { - self.tokens.push(NormalizedToken::Keyword("_")); - } - syn::Pat::Tuple(t) => { - self.tokens.push(NormalizedToken::Keyword("tuple")); - for elem in &t.elems { - self.visit_pat(elem); - } - } - syn::Pat::TupleStruct(ts) => { - self.tokens.push(NormalizedToken::Keyword("tuple")); - for elem in &ts.elems { - self.visit_pat(elem); - } - } - syn::Pat::Struct(s) => { - self.tokens.push(NormalizedToken::Keyword("struct")); - for field in &s.fields { - if let syn::Member::Named(ident) = &field.member { - self.tokens - .push(NormalizedToken::FieldAccess(ident.to_string())); - } - self.visit_pat(&field.pat); - } - } - syn::Pat::Lit(l) => { - // PatLit is ExprLit — handle the literal directly - match &l.lit { - syn::Lit::Int(_) => self.tokens.push(NormalizedToken::IntLit), - syn::Lit::Float(_) => self.tokens.push(NormalizedToken::FloatLit), - syn::Lit::Str(_) | syn::Lit::ByteStr(_) => { - self.tokens.push(NormalizedToken::StrLit); - } - syn::Lit::Bool(b) => { - self.tokens.push(NormalizedToken::BoolLit(b.value)); - } - syn::Lit::Char(_) | syn::Lit::Byte(_) => { - self.tokens.push(NormalizedToken::CharLit); - } - _ => {} - } - } - syn::Pat::Reference(r) => { - self.tokens.push(NormalizedToken::Operator("&")); - if r.mutability.is_some() { - self.tokens.push(NormalizedToken::Keyword("mut")); - } - self.visit_pat(&r.pat); - } - syn::Pat::Or(o) => { - for (i, case) in o.cases.iter().enumerate() { - if i > 0 { - self.tokens.push(NormalizedToken::Operator("|")); - } - self.visit_pat(case); - } - } - syn::Pat::Slice(s) => { - self.tokens.push(NormalizedToken::Keyword("array")); - for elem in &s.elems { - self.visit_pat(elem); - } - } - syn::Pat::Rest(_) => { - self.tokens.push(NormalizedToken::Operator("..")); - } - syn::Pat::Range(r) => { - if let Some(start) = &r.start { - self.visit_expr(start); - } - self.tokens.push(NormalizedToken::Operator("..")); - if let Some(end) = &r.end { - self.visit_expr(end); - } - } - _ => { - syn::visit::visit_pat(self, pat); - } - } - } -} diff --git a/src/adapters/shared/normalize/compound.rs b/src/adapters/shared/normalize/compound.rs new file mode 100644 index 00000000..4b2eacad --- /dev/null +++ b/src/adapters/shared/normalize/compound.rs @@ -0,0 +1,131 @@ +//! Expression-level normalization: compound expressions (references, ranges, +//! struct literals, closures, macros, …). + +use super::{NormalizedToken, Normalizer}; +use syn::visit::Visit; + +impl Normalizer { + pub(super) fn norm_compound_a(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Reference(e) => { + self.tokens.push(NormalizedToken::Operator("&")); + if e.mutability.is_some() { + self.tokens.push(NormalizedToken::Keyword("mut")); + } + self.visit_expr(&e.expr); + } + syn::Expr::Index(e) => { + self.visit_expr(&e.expr); + self.tokens.push(NormalizedToken::Operator("[]")); + self.visit_expr(&e.index); + } + syn::Expr::Tuple(e) => { + self.tokens.push(NormalizedToken::Keyword("tuple")); + for elem in &e.elems { + self.visit_expr(elem); + } + } + syn::Expr::Try(e) => { + self.visit_expr(&e.expr); + self.tokens.push(NormalizedToken::Operator("?")); + } + _ => {} + } + } + + /// Arrays, closures, await. Operation: per-variant emission. + pub(super) fn norm_compound_a2(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Array(e) => { + self.tokens.push(NormalizedToken::Keyword("array")); + for elem in &e.elems { + self.visit_expr(elem); + } + } + syn::Expr::Closure(e) => { + self.tokens.push(NormalizedToken::Keyword("closure")); + for input in &e.inputs { + self.visit_pat(input); + } + self.visit_expr(&e.body); + } + syn::Expr::Await(e) => { + self.visit_expr(&e.base); + self.tokens.push(NormalizedToken::Keyword("await")); + } + _ => {} + } + } + + /// Ranges, casts, parens, repeats. Operation: per-variant emission. + pub(super) fn norm_compound_b(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Range(e) => { + if let Some(start) = &e.start { + self.visit_expr(start); + } + self.tokens.push(NormalizedToken::Operator("..")); + if let Some(end) = &e.end { + self.visit_expr(end); + } + } + syn::Expr::Cast(e) => { + self.visit_expr(&e.expr); + self.tokens.push(NormalizedToken::Keyword("as")); + } + syn::Expr::Paren(e) => { + // Skip parentheses — they're structural noise + self.visit_expr(&e.expr); + } + syn::Expr::Repeat(e) => { + self.tokens.push(NormalizedToken::Keyword("array")); + self.visit_expr(&e.expr); + self.visit_expr(&e.len); + } + _ => {} + } + } + + /// Let-exprs, struct literals, yield, macros. Operation: per-variant emission. + pub(super) fn norm_compound_b2(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Let(e) => { + self.tokens.push(NormalizedToken::Keyword("let")); + self.visit_pat(&e.pat); + self.tokens.push(NormalizedToken::Operator("=")); + self.visit_expr(&e.expr); + } + syn::Expr::Struct(e) => { + self.tokens.push(NormalizedToken::Keyword("struct")); + for field in &e.fields { + if let syn::Member::Named(ident) = &field.member { + self.tokens + .push(NormalizedToken::FieldAccess(ident.to_string())); + } + self.visit_expr(&field.expr); + } + if let Some(rest) = &e.rest { + self.tokens.push(NormalizedToken::Operator("..")); + self.visit_expr(rest); + } + } + syn::Expr::Yield(e) => { + self.tokens.push(NormalizedToken::Keyword("yield")); + if let Some(expr) = &e.expr { + self.visit_expr(expr); + } + } + syn::Expr::Macro(m) => { + let name = m + .mac + .path + .segments + .last() + .map(|s| s.ident.to_string()) + .unwrap_or_default(); + self.tokens.push(NormalizedToken::MacroCall(name)); + } + _ => {} + } + } +} diff --git a/src/adapters/shared/normalize/expr.rs b/src/adapters/shared/normalize/expr.rs new file mode 100644 index 00000000..a39cc939 --- /dev/null +++ b/src/adapters/shared/normalize/expr.rs @@ -0,0 +1,176 @@ +//! Expression-level normalization: literals, operators, calls, control flow. + +use super::operators::{bin_op_str, un_op_str}; +use super::{NormalizedToken, Normalizer}; +use syn::visit::Visit; + +impl Normalizer { + // ── Expression category handlers ──────────────────────────── + // + // `visit_expr` is a pure dispatch table; each handler normalizes one + // related group of `syn::Expr` variants. Splitting by category keeps every + // handler well under the complexity threshold while the visitor stays a flat + // routing match. + + /// Emit the token for a literal's kind (shared by expression and pattern + /// literals). Operation: literal-kind match, no own calls. + pub(super) fn norm_lit_kind(&mut self, lit: &syn::Lit) { + match lit { + syn::Lit::Int(_) => self.tokens.push(NormalizedToken::IntLit), + syn::Lit::Float(_) => self.tokens.push(NormalizedToken::FloatLit), + syn::Lit::Str(_) | syn::Lit::ByteStr(_) => self.tokens.push(NormalizedToken::StrLit), + syn::Lit::Bool(b) => self.tokens.push(NormalizedToken::BoolLit(b.value)), + syn::Lit::Char(_) | syn::Lit::Byte(_) => self.tokens.push(NormalizedToken::CharLit), + _ => {} + } + } + + /// Single-segment paths normalize to positional identifiers; multi-segment + /// paths (external references) are dropped. Operation: ident resolution. + pub(super) fn norm_path(&mut self, p: &syn::ExprPath) { + if p.path.segments.len() == 1 { + let name = p.path.segments[0].ident.to_string(); + let id = self.resolve_ident(&name); + self.tokens.push(NormalizedToken::Ident(id)); + } + } + + /// Binary, unary, and assignment operators. Operation: per-variant emission. + pub(super) fn norm_operator(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Binary(e) => { + self.visit_expr(&e.left); + self.tokens + .push(NormalizedToken::Operator(bin_op_str(&e.op))); + self.visit_expr(&e.right); + } + syn::Expr::Unary(e) => { + self.tokens + .push(NormalizedToken::Operator(un_op_str(&e.op))); + self.visit_expr(&e.expr); + } + syn::Expr::Assign(e) => { + self.visit_expr(&e.left); + self.tokens.push(NormalizedToken::Operator("=")); + self.visit_expr(&e.right); + } + _ => {} + } + } + + /// Calls, method calls, and field access. Operation: per-variant emission. + pub(super) fn norm_call_field(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Call(e) => { + self.visit_expr(&e.func); + for arg in &e.args { + self.visit_expr(arg); + } + } + syn::Expr::MethodCall(e) => { + self.visit_expr(&e.receiver); + self.tokens + .push(NormalizedToken::MethodCall(e.method.to_string())); + for arg in &e.args { + self.visit_expr(arg); + } + } + syn::Expr::Field(e) => { + self.visit_expr(&e.base); + let field_name = match &e.member { + syn::Member::Named(ident) => ident.to_string(), + syn::Member::Unnamed(idx) => idx.index.to_string(), + }; + self.tokens.push(NormalizedToken::FieldAccess(field_name)); + } + _ => {} + } + } + + /// `if` / `match` branching constructs. Operation: per-variant emission. + pub(super) fn norm_branch(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::If(e) => { + self.tokens.push(NormalizedToken::Keyword("if")); + self.visit_expr(&e.cond); + for stmt in &e.then_branch.stmts { + self.visit_stmt(stmt); + } + if let Some((_, else_branch)) = &e.else_branch { + self.tokens.push(NormalizedToken::Keyword("else")); + self.visit_expr(else_branch); + } + } + syn::Expr::Match(e) => { + self.tokens.push(NormalizedToken::Keyword("match")); + self.visit_expr(&e.expr); + for arm in &e.arms { + self.visit_pat(&arm.pat); + if let Some((_, guard)) = &arm.guard { + self.tokens.push(NormalizedToken::Keyword("if")); + self.visit_expr(guard); + } + self.tokens.push(NormalizedToken::Operator("=>")); + self.visit_expr(&arm.body); + } + } + _ => {} + } + } + + /// `for` / `while` / `loop` / block loop constructs. Operation: emission. + pub(super) fn norm_loop(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::ForLoop(e) => { + self.tokens.push(NormalizedToken::Keyword("for")); + self.visit_pat(&e.pat); + self.tokens.push(NormalizedToken::Keyword("in")); + self.visit_expr(&e.expr); + for stmt in &e.body.stmts { + self.visit_stmt(stmt); + } + } + syn::Expr::While(e) => { + self.tokens.push(NormalizedToken::Keyword("while")); + self.visit_expr(&e.cond); + for stmt in &e.body.stmts { + self.visit_stmt(stmt); + } + } + syn::Expr::Loop(e) => { + self.tokens.push(NormalizedToken::Keyword("loop")); + for stmt in &e.body.stmts { + self.visit_stmt(stmt); + } + } + syn::Expr::Block(e) => { + for stmt in &e.block.stmts { + self.visit_stmt(stmt); + } + } + _ => {} + } + } + + /// `return` / `break` / `continue` jumps. Operation: per-variant emission. + pub(super) fn norm_jump(&mut self, expr: &syn::Expr) { + match expr { + syn::Expr::Return(e) => { + self.tokens.push(NormalizedToken::Keyword("return")); + if let Some(expr) = &e.expr { + self.visit_expr(expr); + } + } + syn::Expr::Break(e) => { + self.tokens.push(NormalizedToken::Keyword("break")); + if let Some(expr) = &e.expr { + self.visit_expr(expr); + } + } + syn::Expr::Continue(_) => { + self.tokens.push(NormalizedToken::Keyword("continue")); + } + _ => {} + } + } +} diff --git a/src/adapters/shared/normalize/mod.rs b/src/adapters/shared/normalize/mod.rs new file mode 100644 index 00000000..a4a8c094 --- /dev/null +++ b/src/adapters/shared/normalize/mod.rs @@ -0,0 +1,207 @@ +//! Structural normalization of Rust function bodies into comparable token +//! streams, used by DRY fragment/duplicate detection. Split by concern: the +//! token vocabulary (`token`), operator lookup tables (`operators`), and the +//! expression (`expr` + `compound`) and pattern (`pat`) walkers. This module +//! holds the public API, the `Normalizer` state, statement-level walking, and +//! the `syn::Visit` dispatch table that routes to the per-category handlers. + +use std::collections::{HashMap, HashSet}; +use std::hash::{Hash, Hasher}; + +use syn::visit::Visit; + +mod compound; +mod expr; +mod operators; +mod pat; +mod token; + +pub use token::NormalizedToken; + +// ── Public API ────────────────────────────────────────────────── + +/// Normalize a function body into a flat token stream. +/// Operation: creates normalizer inline (no own calls), delegates to syn visitor. +pub fn normalize_body(body: &syn::Block) -> Vec { + let mut n = Normalizer { + tokens: Vec::new(), + ident_map: HashMap::new(), + next_ident_id: 0, + }; + syn::visit::visit_block(&mut n, body); + n.tokens +} + +/// Normalize a slice of statements with a fresh identifier mapping. +/// Operation: creates normalizer inline, iterates statements. +/// Used for sliding-window fragment detection (Phase 5). +pub fn normalize_stmts(stmts: &[syn::Stmt]) -> Vec { + let mut n = Normalizer { + tokens: Vec::new(), + ident_map: HashMap::new(), + next_ident_id: 0, + }; + stmts.iter().for_each(|stmt| n.visit_stmt(stmt)); + n.tokens +} + +/// Compute a structural hash from a normalized token stream. +/// Operation: hashing logic, no own calls. +pub fn structural_hash(tokens: &[NormalizedToken]) -> u64 { + let mut hasher = std::collections::hash_map::DefaultHasher::new(); + tokens.hash(&mut hasher); + hasher.finish() +} + +/// Compute multiset Jaccard similarity between two token streams. +/// Operation: counting + arithmetic logic, no own calls. +/// Returns 1.0 for identical streams, 0.0 for completely disjoint. +pub fn jaccard_similarity(a: &[NormalizedToken], b: &[NormalizedToken]) -> f64 { + if a.is_empty() && b.is_empty() { + return 1.0; + } + if a.is_empty() || b.is_empty() { + return 0.0; + } + + let mut counts_a: HashMap<&NormalizedToken, usize> = HashMap::new(); + for t in a { + *counts_a.entry(t).or_insert(0) += 1; + } + let mut counts_b: HashMap<&NormalizedToken, usize> = HashMap::new(); + for t in b { + *counts_b.entry(t).or_insert(0) += 1; + } + + let all_keys: HashSet<&NormalizedToken> = + counts_a.keys().chain(counts_b.keys()).copied().collect(); + + let mut intersection = 0usize; + let mut union = 0usize; + for key in all_keys { + let ca = counts_a.get(key).copied().unwrap_or(0); + let cb = counts_b.get(key).copied().unwrap_or(0); + intersection += ca.min(cb); + union += ca.max(cb); + } + + if union == 0 { + 1.0 + } else { + intersection as f64 / union as f64 + } +} + +// ── Normalizer (private) ──────────────────────────────────────── + +/// AST walker that produces normalized tokens. +struct Normalizer { + tokens: Vec, + ident_map: HashMap, + next_ident_id: usize, +} + +impl Normalizer { + /// Resolve an identifier name to a positional index (assign on first encounter). + fn resolve_ident(&mut self, name: &str) -> usize { + if let Some(&id) = self.ident_map.get(name) { + id + } else { + let id = self.next_ident_id; + self.next_ident_id += 1; + self.ident_map.insert(name.to_string(), id); + id + } + } +} + +// ── syn::visit::Visit implementation ──────────────────────────── + +impl<'ast> Visit<'ast> for Normalizer { + fn visit_stmt(&mut self, stmt: &'ast syn::Stmt) { + match stmt { + syn::Stmt::Local(local) => { + self.tokens.push(NormalizedToken::Keyword("let")); + self.visit_pat(&local.pat); + if let Some(init) = &local.init { + self.tokens.push(NormalizedToken::Operator("=")); + self.visit_expr(&init.expr); + if let Some((_, diverge)) = &init.diverge { + self.tokens.push(NormalizedToken::Keyword("else")); + self.visit_expr(diverge); + } + } + self.tokens.push(NormalizedToken::Semi); + } + syn::Stmt::Expr(expr, semi) => { + self.visit_expr(expr); + if semi.is_some() { + self.tokens.push(NormalizedToken::Semi); + } + } + syn::Stmt::Macro(m) => { + let name = m + .mac + .path + .segments + .last() + .map(|s| s.ident.to_string()) + .unwrap_or_default(); + self.tokens.push(NormalizedToken::MacroCall(name)); + self.tokens.push(NormalizedToken::Semi); + } + syn::Stmt::Item(_) => { /* skip items in function bodies */ } + } + } + + fn visit_expr(&mut self, expr: &'ast syn::Expr) { + match expr { + syn::Expr::Lit(lit) => self.norm_lit_kind(&lit.lit), + syn::Expr::Path(p) => self.norm_path(p), + syn::Expr::Binary(_) | syn::Expr::Unary(_) | syn::Expr::Assign(_) => { + self.norm_operator(expr) + } + syn::Expr::Call(_) | syn::Expr::MethodCall(_) | syn::Expr::Field(_) => { + self.norm_call_field(expr) + } + syn::Expr::If(_) | syn::Expr::Match(_) => self.norm_branch(expr), + syn::Expr::ForLoop(_) + | syn::Expr::While(_) + | syn::Expr::Loop(_) + | syn::Expr::Block(_) => self.norm_loop(expr), + syn::Expr::Return(_) | syn::Expr::Break(_) | syn::Expr::Continue(_) => { + self.norm_jump(expr) + } + syn::Expr::Reference(_) + | syn::Expr::Index(_) + | syn::Expr::Tuple(_) + | syn::Expr::Try(_) => self.norm_compound_a(expr), + syn::Expr::Array(_) | syn::Expr::Closure(_) | syn::Expr::Await(_) => { + self.norm_compound_a2(expr) + } + syn::Expr::Range(_) + | syn::Expr::Cast(_) + | syn::Expr::Paren(_) + | syn::Expr::Repeat(_) => self.norm_compound_b(expr), + syn::Expr::Let(_) + | syn::Expr::Struct(_) + | syn::Expr::Yield(_) + | syn::Expr::Macro(_) => self.norm_compound_b2(expr), + _ => syn::visit::visit_expr(self, expr), + } + } + + fn visit_pat(&mut self, pat: &'ast syn::Pat) { + match pat { + syn::Pat::Ident(_) | syn::Pat::Wild(_) => self.norm_pat_bind(pat), + syn::Pat::Tuple(_) | syn::Pat::TupleStruct(_) | syn::Pat::Slice(_) => { + self.norm_pat_seq(pat) + } + syn::Pat::Struct(_) | syn::Pat::Reference(_) | syn::Pat::Or(_) => { + self.norm_pat_compound(pat) + } + syn::Pat::Lit(_) | syn::Pat::Range(_) | syn::Pat::Rest(_) => self.norm_pat_leaf(pat), + _ => syn::visit::visit_pat(self, pat), + } + } +} diff --git a/src/adapters/shared/normalize/operators.rs b/src/adapters/shared/normalize/operators.rs new file mode 100644 index 00000000..05682517 --- /dev/null +++ b/src/adapters/shared/normalize/operators.rs @@ -0,0 +1,48 @@ +//! Operator -> token-string lookup tables for the normalizer. + +/// Convert a binary operator to its string representation. +/// Operation: pure lookup table. +pub(super) fn bin_op_str(op: &syn::BinOp) -> &'static str { + match op { + syn::BinOp::Add(_) => "+", + syn::BinOp::Sub(_) => "-", + syn::BinOp::Mul(_) => "*", + syn::BinOp::Div(_) => "/", + syn::BinOp::Rem(_) => "%", + syn::BinOp::And(_) => "&&", + syn::BinOp::Or(_) => "||", + syn::BinOp::BitXor(_) => "^", + syn::BinOp::BitAnd(_) => "&", + syn::BinOp::BitOr(_) => "|", + syn::BinOp::Shl(_) => "<<", + syn::BinOp::Shr(_) => ">>", + syn::BinOp::Eq(_) => "==", + syn::BinOp::Lt(_) => "<", + syn::BinOp::Le(_) => "<=", + syn::BinOp::Ne(_) => "!=", + syn::BinOp::Ge(_) => ">=", + syn::BinOp::Gt(_) => ">", + syn::BinOp::AddAssign(_) => "+=", + syn::BinOp::SubAssign(_) => "-=", + syn::BinOp::MulAssign(_) => "*=", + syn::BinOp::DivAssign(_) => "/=", + syn::BinOp::RemAssign(_) => "%=", + syn::BinOp::BitXorAssign(_) => "^=", + syn::BinOp::BitAndAssign(_) => "&=", + syn::BinOp::BitOrAssign(_) => "|=", + syn::BinOp::ShlAssign(_) => "<<=", + syn::BinOp::ShrAssign(_) => ">>=", + _ => "?op", + } +} + +/// Convert a unary operator to its string representation. +/// Operation: pure lookup table. +pub(super) fn un_op_str(op: &syn::UnOp) -> &'static str { + match op { + syn::UnOp::Deref(_) => "*", + syn::UnOp::Not(_) => "!", + syn::UnOp::Neg(_) => "-", + _ => "?un", + } +} diff --git a/src/adapters/shared/normalize/pat.rs b/src/adapters/shared/normalize/pat.rs new file mode 100644 index 00000000..65f1bda9 --- /dev/null +++ b/src/adapters/shared/normalize/pat.rs @@ -0,0 +1,101 @@ +//! Pattern-level normalization: per-category `syn::Pat` handlers. + +use super::{NormalizedToken, Normalizer}; +use syn::visit::Visit; + +impl Normalizer { + /// Binding patterns: `ident` (with optional `mut` / `@` subpattern) and `_`. + /// Operation: per-variant emission. + pub(super) fn norm_pat_bind(&mut self, pat: &syn::Pat) { + match pat { + syn::Pat::Ident(p) => { + if p.mutability.is_some() { + self.tokens.push(NormalizedToken::Keyword("mut")); + } + let id = self.resolve_ident(&p.ident.to_string()); + self.tokens.push(NormalizedToken::Ident(id)); + if let Some((_, sub)) = &p.subpat { + self.tokens.push(NormalizedToken::Operator("@")); + self.visit_pat(sub); + } + } + syn::Pat::Wild(_) => self.tokens.push(NormalizedToken::Keyword("_")), + _ => {} + } + } + + /// Sequence patterns: tuples, tuple structs, slices. Operation: emission. + pub(super) fn norm_pat_seq(&mut self, pat: &syn::Pat) { + match pat { + syn::Pat::Tuple(t) => { + self.tokens.push(NormalizedToken::Keyword("tuple")); + for elem in &t.elems { + self.visit_pat(elem); + } + } + syn::Pat::TupleStruct(ts) => { + self.tokens.push(NormalizedToken::Keyword("tuple")); + for elem in &ts.elems { + self.visit_pat(elem); + } + } + syn::Pat::Slice(s) => { + self.tokens.push(NormalizedToken::Keyword("array")); + for elem in &s.elems { + self.visit_pat(elem); + } + } + _ => {} + } + } + + /// Struct, reference, and or-patterns. Operation: per-variant emission. + pub(super) fn norm_pat_compound(&mut self, pat: &syn::Pat) { + match pat { + syn::Pat::Struct(s) => { + self.tokens.push(NormalizedToken::Keyword("struct")); + for field in &s.fields { + if let syn::Member::Named(ident) = &field.member { + self.tokens + .push(NormalizedToken::FieldAccess(ident.to_string())); + } + self.visit_pat(&field.pat); + } + } + syn::Pat::Reference(r) => { + self.tokens.push(NormalizedToken::Operator("&")); + if r.mutability.is_some() { + self.tokens.push(NormalizedToken::Keyword("mut")); + } + self.visit_pat(&r.pat); + } + syn::Pat::Or(o) => { + for (i, case) in o.cases.iter().enumerate() { + if i > 0 { + self.tokens.push(NormalizedToken::Operator("|")); + } + self.visit_pat(case); + } + } + _ => {} + } + } + + /// Leaf patterns: literals, ranges, rest (`..`). Operation: per-variant emission. + pub(super) fn norm_pat_leaf(&mut self, pat: &syn::Pat) { + match pat { + syn::Pat::Lit(l) => self.norm_lit_kind(&l.lit), + syn::Pat::Range(r) => { + if let Some(start) = &r.start { + self.visit_expr(start); + } + self.tokens.push(NormalizedToken::Operator("..")); + if let Some(end) = &r.end { + self.visit_expr(end); + } + } + syn::Pat::Rest(_) => self.tokens.push(NormalizedToken::Operator("..")), + _ => {} + } + } +} diff --git a/src/adapters/shared/normalize/token.rs b/src/adapters/shared/normalize/token.rs new file mode 100644 index 00000000..69432395 --- /dev/null +++ b/src/adapters/shared/normalize/token.rs @@ -0,0 +1,31 @@ +//! The normalized token vocabulary produced by the AST walk. + +/// A normalized AST token with variable names replaced by positional indices, +/// literal values erased to type placeholders, and structural tokens preserved. +#[derive(Debug, Clone, PartialEq, Eq, Hash)] +pub enum NormalizedToken { + /// Control flow keyword (if, for, while, match, loop, return, break, continue, let, else, etc.) + Keyword(&'static str), + /// Binary/unary/assignment operator as its token string. + Operator(&'static str), + /// Variable/parameter name replaced with first-seen positional index. + Ident(usize), + /// Method call — name preserved (structurally significant). + MethodCall(String), + /// Field access (e.g. self.field_name) — name preserved. + FieldAccess(String), + /// Integer literal (value erased). + IntLit, + /// Float literal (value erased). + FloatLit, + /// String/byte-string literal (value erased). + StrLit, + /// Boolean literal — value preserved (semantically significant). + BoolLit(bool), + /// Char/byte literal (value erased). + CharLit, + /// Macro invocation — name preserved. + MacroCall(String), + /// Statement terminator. + Semi, +} diff --git a/src/adapters/analyzers/iosp/scope.rs b/src/adapters/shared/project_scope.rs similarity index 100% rename from src/adapters/analyzers/iosp/scope.rs rename to src/adapters/shared/project_scope.rs diff --git a/src/adapters/shared/test_references.rs b/src/adapters/shared/test_references.rs new file mode 100644 index 00000000..0317a7fe --- /dev/null +++ b/src/adapters/shared/test_references.rs @@ -0,0 +1,140 @@ +//! Per-test reference collection, shared across analyzers. +//! +//! Walks `#[test]` functions and records what each one *references* — the +//! functions/methods it calls and the type names it mentions (via +//! `Type::method()`, struct construction, or enum-variant paths). Both TQ +//! (no-SUT detection, TQ-002) and SRP (test-SUT-cohesion) need exactly this, so +//! it lives in `shared/` rather than inside one analyzer that the other reaches +//! into. + +use syn::visit::Visit; + +use crate::adapters::shared::cfg_test::has_test_attr; + +/// What a single `#[test]` function references. +pub(crate) struct TestFnReferences { + pub name: String, + pub line: usize, + /// Names called: free functions, methods (`.foo()`), `Type::assoc()`. Note + /// method-call names are receiver-type-agnostic (ambiguous). + pub call_targets: Vec, + /// Type names mentioned explicitly: `Type::method()`, `Type { .. }`, + /// `Enum::Variant`. These are reliable references to a named type. + pub type_qualified_calls: Vec, +} + +/// Collect the references of every `#[test]` function in one parsed file. +/// Operation: runs the collector over the file. +pub(crate) fn collect_test_references(file: &syn::File) -> Vec { + let mut collector = TestReferenceCollector::default(); + collector.visit_file(file); + collector.test_fns +} + +/// Collects `#[test]` functions and what each references. +#[derive(Default)] +struct TestReferenceCollector { + test_fns: Vec, + in_test_fn: bool, + current_calls: Vec, + current_type_calls: Vec, +} + +impl<'ast> Visit<'ast> for TestReferenceCollector { + fn visit_macro(&mut self, node: &'ast syn::Macro) { + if self.in_test_fn { + // Parse macro arguments (assert!, assert_eq!, vec!, etc.) as expressions + // to find references embedded inside macros. + use syn::punctuated::Punctuated; + if let Ok(args) = syn::parse::Parser::parse2( + Punctuated::::parse_terminated, + node.tokens.clone(), + ) { + args.iter() + .for_each(|expr| syn::visit::visit_expr(self, expr)); + } + } + syn::visit::visit_macro(self, node); + } + + fn visit_item_fn(&mut self, node: &'ast syn::ItemFn) { + if has_test_attr(&node.attrs) { + self.in_test_fn = true; + self.current_calls.clear(); + self.current_type_calls.clear(); + syn::visit::visit_item_fn(self, node); + self.in_test_fn = false; + let line = node.sig.ident.span().start().line; + self.test_fns.push(TestFnReferences { + name: node.sig.ident.to_string(), + line, + call_targets: std::mem::take(&mut self.current_calls), + type_qualified_calls: std::mem::take(&mut self.current_type_calls), + }); + } else { + syn::visit::visit_item_fn(self, node); + } + } + + fn visit_expr_call(&mut self, node: &'ast syn::ExprCall) { + if self.in_test_fn { + if let syn::Expr::Path(ref p) = *node.func { + let name = path_to_name(&p.path); + self.current_calls.push(name); + if let Some(type_name) = path_type_prefix(&p.path) { + self.current_type_calls.push(type_name); + } + } + } + syn::visit::visit_expr_call(self, node); + } + + fn visit_expr_method_call(&mut self, node: &'ast syn::ExprMethodCall) { + if self.in_test_fn { + self.current_calls.push(node.method.to_string()); + } + syn::visit::visit_expr_method_call(self, node); + } + + fn visit_expr_struct(&mut self, node: &'ast syn::ExprStruct) { + // Recognize struct construction as referencing the type. + if self.in_test_fn { + if let Some(last) = node.path.segments.last() { + self.current_type_calls.push(last.ident.to_string()); + } + } + syn::visit::visit_expr_struct(self, node); + } + + fn visit_expr_path(&mut self, node: &'ast syn::ExprPath) { + // Recognize enum variant paths (e.g. Dimension::Iosp → type "Dimension"). + if self.in_test_fn && node.path.segments.len() >= 2 { + let type_seg = &node.path.segments[node.path.segments.len() - 2]; + self.current_type_calls.push(type_seg.ident.to_string()); + } + syn::visit::visit_expr_path(self, node); + } +} + +/// Extract the final segment name from a path. +/// Operation: path segment extraction. +fn path_to_name(path: &syn::Path) -> String { + path.segments + .last() + .map(|s| s.ident.to_string()) + .unwrap_or_default() +} + +/// Extract the type prefix from a 2+-segment path (e.g. "Config" from "Config::load"). +/// Operation: path prefix extraction. +fn path_type_prefix(path: &syn::Path) -> Option { + let len = path.segments.len(); + if len >= 2 { + path.segments + .iter() + .nth(len - 2) + .map(|s| s.ident.to_string()) + } else { + None + } +} diff --git a/src/adapters/shared/tests/mod.rs b/src/adapters/shared/tests/mod.rs index 642cab00..f87e93a3 100644 --- a/src/adapters/shared/tests/mod.rs +++ b/src/adapters/shared/tests/mod.rs @@ -4,4 +4,5 @@ mod file_to_module; mod macro_expansion; mod normalize; mod normalize_coverage; +mod scope; mod use_tree; diff --git a/src/adapters/analyzers/iosp/tests/scope/collection_and_ownership.rs b/src/adapters/shared/tests/scope/collection_and_ownership.rs similarity index 100% rename from src/adapters/analyzers/iosp/tests/scope/collection_and_ownership.rs rename to src/adapters/shared/tests/scope/collection_and_ownership.rs diff --git a/src/adapters/analyzers/iosp/tests/scope/mod.rs b/src/adapters/shared/tests/scope/mod.rs similarity index 91% rename from src/adapters/analyzers/iosp/tests/scope/mod.rs rename to src/adapters/shared/tests/scope/mod.rs index 4b28b7f2..cd485344 100644 --- a/src/adapters/analyzers/iosp/tests/scope/mod.rs +++ b/src/adapters/shared/tests/scope/mod.rs @@ -2,7 +2,7 @@ //! (each ≤ the SRP file-length cap); shared imports + the `build_scope` helper //! live here and reach the sub-modules via `use super::*`. -pub(super) use crate::adapters::analyzers::iosp::scope::*; +pub(super) use crate::adapters::shared::project_scope::*; pub(super) use std::collections::{HashMap, HashSet}; pub(super) use syn::visit::Visit; pub(super) use syn::{File, ImplItem, TraitItem}; diff --git a/src/adapters/analyzers/iosp/tests/scope/trivial_and_edge_cases.rs b/src/adapters/shared/tests/scope/trivial_and_edge_cases.rs similarity index 100% rename from src/adapters/analyzers/iosp/tests/scope/trivial_and_edge_cases.rs rename to src/adapters/shared/tests/scope/trivial_and_edge_cases.rs diff --git a/src/adapters/source/tests/filesystem.rs b/src/adapters/source/tests/filesystem.rs index afc7ac2c..0e7f93e2 100644 --- a/src/adapters/source/tests/filesystem.rs +++ b/src/adapters/source/tests/filesystem.rs @@ -121,7 +121,7 @@ fn qual_allow_marker_line_follows_contiguous_comment_block() { let cases: &[(&str, &str, usize)] = &[ ( "contiguous 3-line block shifts to line 3", - "// qual:allow(srp) — rustqual false-positive LCOM4=2\n\ + "// qual:allow(srp, god_struct) reason: \"rustqual false-positive LCOM4=2\"\n\ // The struct's methods form one coherent data layer.\n\ // See docs/rustqual-bugs.md.\n\ #[derive(Default)]\n\ @@ -130,7 +130,7 @@ fn qual_allow_marker_line_follows_contiguous_comment_block() { ), ( "blank line breaks the block; marker stays at line 1", - "// qual:allow(srp)\n\ + "// qual:allow(srp, god_struct) reason: \"x\"\n\ \n\ #[derive(Default)]\n\ pub struct Foo { x: i32 }\n", diff --git a/src/adapters/suppression/qual_allow.rs b/src/adapters/suppression/qual_allow.rs index 8bfb00ad..b146f544 100644 --- a/src/adapters/suppression/qual_allow.rs +++ b/src/adapters/suppression/qual_allow.rs @@ -1,6 +1,6 @@ // Re-export Domain types so existing `crate::findings::{Dimension, Suppression}` -// call sites keep working. The canonical location is `crate::domain`; -// subsequent phases will migrate call sites to import from there directly. +// call sites keep working. The canonical definitions live in `crate::domain`. +use crate::domain::{target_kind, target_names, SuppressionTarget, TargetKind}; pub use crate::domain::{Dimension, Suppression}; /// Maximum number of lines between an annotation comment and the function/struct it applies to. @@ -33,8 +33,8 @@ pub fn is_api_marker(trimmed: &str) -> bool { /// The annotation narrowly suppresses DRY-002 (`testonly` dead code) /// and TQ-003 (untested) on a function that is only called from test /// code — without silencing complexity, SRP, coupling, or DRY -/// duplicate checks the way `ignore_functions` would. It does not -/// count against `max_suppression_ratio`. +/// duplicate checks, which stay active. It does not count against +/// `max_suppression_ratio`. /// Operation: string prefix check. pub fn is_test_helper_marker(trimmed: &str) -> bool { trimmed == "// qual:test_helper" || trimmed.starts_with("// qual:test_helper ") @@ -83,11 +83,11 @@ fn parse_iosp_legacy(line_number: usize, trimmed: &str) -> Option { let reason = trimmed .strip_prefix("// iosp:allow ") .map(|s| s.to_string()); - Some(Suppression { - line: line_number, - dimensions: vec![Dimension::Iosp], + Some(Suppression::blanket( + line_number, + vec![Dimension::Iosp], reason, - }) + )) } else { None } @@ -101,25 +101,64 @@ fn parse_iosp_legacy(line_number: usize, trimmed: &str) -> Option { /// unclosed-with-valid-dim case (`// qual:allow(iosp`). #[derive(Debug, Clone, PartialEq, Eq)] pub enum InvalidQualAllow { - /// Parens closed, but no comma-separated entry resolves to a - /// known dimension (`srp_params`, removed dim, stray text). + /// Parens closed, but the first comma-separated entry does not resolve + /// to a known dimension (removed dim, stray text). UnknownDimensions(String), /// Opening `(` present but no closing `)`. Surfaced regardless /// of whether the tail spells a valid dim — the marker's shape /// is broken and the parser rejects it, so it must surface. UnclosedParens(String), + /// A `allow(dim, name)` whose `name` is not a known target of `dim`. + /// Carries the valid target list so the author sees what to write. + UnknownTarget { + dim: String, + target: String, + valid: Vec, + }, + /// A threshold-metric target used without its mandatory `=value`. + MetricNeedsValue { dim: String, target: String }, + /// A boolean target given a `=value` it does not accept. + BooleanTakesNoValue { dim: String, target: String }, + /// A metric pin value that did not parse as a number. + BadPinValue { target: String, value: String }, + /// A targeted suppression without the mandatory `reason:`. + TargetNeedsReason { dim: String, target: String }, + /// A bare `allow(dim)` (no target) for a multi-kind dimension. The + /// targeted form is required so the suppression names what it silences. + BlanketNotAllowed { dim: String, valid: Vec }, } impl InvalidQualAllow { /// Renderable reason for the orphan-finding's `reason` field. + /// Operation: per-variant message formatting (dispatch, no own calls). pub fn reason(&self) -> String { match self { - Self::UnknownDimensions(spec) => format!( - "invalid qual:allow — '{spec}' did not parse to any known dimension" - ), + Self::UnknownDimensions(spec) => { + format!("invalid qual:allow — '{spec}' did not parse to any known dimension") + } Self::UnclosedParens(spec) => format!( "invalid qual:allow — marker has unclosed parens (missing `)`); content was '{spec}'" ), + Self::UnknownTarget { dim, target, valid } => format!( + "invalid qual:allow — '{target}' is not a known target of {dim}; valid targets: {}", + valid.join(", ") + ), + Self::MetricNeedsValue { dim, target } => format!( + "invalid qual:allow — {dim} target '{target}' is a threshold metric and needs a value, e.g. {target}=" + ), + Self::BooleanTakesNoValue { dim, target } => format!( + "invalid qual:allow — {dim} target '{target}' is a boolean finding and takes no value" + ), + Self::BadPinValue { target, value } => format!( + "invalid qual:allow — pin value '{value}' for '{target}' must be a finite, non-negative number" + ), + Self::TargetNeedsReason { dim, target } => format!( + "invalid qual:allow — targeted suppression ({dim}, {target}) requires a reason: \"…\"" + ), + Self::BlanketNotAllowed { dim, valid } => format!( + "invalid qual:allow — bare ({dim}) would silence every {dim} finding; name what you mean: allow({dim}, ). Targets: {}", + valid.join(", ") + ), } } } @@ -139,77 +178,204 @@ pub fn detect_invalid_qual_allow(trimmed: &str) -> Option { if is_unsafe_allow_marker(trimmed) { return None; } - let rest = trimmed.strip_prefix("// qual:allow")?.trim_start(); - if !rest.starts_with('(') { - return None; - } - let (dims_str, malformed_parens) = match rest.find(')') { - Some(close_paren) => (rest[1..close_paren].trim().to_string(), false), - // Missing close paren: treat the whole tail (after `(`) as - // the bad spec so the orphan finding is visible. - None => (rest[1..].trim().to_string(), true), - }; - if dims_str.is_empty() { - return None; - } - if malformed_parens { - // Structural malformation — surface even if the tail happens - // to spell a valid dim. Mirrors the parser's reject path so a - // user typing `// qual:allow(iosp` (no `)`) doesn't get - // silently zero suppression and zero orphan. - return Some(InvalidQualAllow::UnclosedParens(dims_str)); - } - let any_recognized = dims_str - .split(',') - .any(|s| Dimension::from_str_opt(s.trim()).is_some()); - if any_recognized { - return None; + let rest = trimmed.strip_prefix("// qual:allow")?; + match classify_qual_allow(0, rest) { + AllowParse::Invalid(invalid) => Some(invalid), + _ => None, } - Some(InvalidQualAllow::UnknownDimensions(dims_str)) } -/// Parse the part after "// qual:allow". -/// Returns `None` for any form that produces an empty dimensions list: -/// bare allow, empty parens, all-args unrecognized, or unclosed parens -/// (missing the closing `)`) — none of those can act as suppressions. -/// Typos like `// qual:allow(srp_params)` and unclosed forms like -/// `// qual:allow(srp_params` are also surfaced as invalid markers -/// via `detect_invalid_qual_allow` so the author still sees a -/// stale-suppression finding. -/// Operation: string parsing for dimensions and reason (no own calls; -/// extract_reason is called via closures for IOSP compliance). +/// Parse the part after "// qual:allow" into a usable suppression, or `None` +/// for the no-intent forms (bare `allow`, `allow()`) and every invalid form +/// — the latter surface separately via `detect_invalid_qual_allow`. Both +/// route through the single `classify_qual_allow` so they cannot disagree. +/// Operation: keeps the `Valid` outcome (dispatch, own call reclassified). fn parse_qual_allow(line_number: usize, rest: &str) -> Option { + match classify_qual_allow(line_number, rest) { + AllowParse::Valid(suppression) => Some(suppression), + _ => None, + } +} + +/// Outcome of classifying the text after `// qual:allow`. +enum AllowParse { + /// A usable suppression — blanket `allow(dim)` or targeted `allow(dim, t)`. + Valid(Suppression), + /// No intent: bare `allow` / `allow()`. Neither suppresses nor surfaces. + Bare, + /// Malformed or unknown — surfaced as `ORPHAN_SUPPRESSION`. + Invalid(InvalidQualAllow), +} + +/// Single source of truth for `parse_qual_allow` (keeps `Valid`) and +/// `detect_invalid_qual_allow` (keeps `Invalid`), so they can never diverge. +/// Splits off the parens, extracts the reason, and delegates the comma +/// entries. +/// Operation: paren/shape dispatch; entry classification + reason extraction +/// reach non-violation helpers. +fn classify_qual_allow(line: usize, rest: &str) -> AllowParse { let rest = rest.trim(); + if rest.is_empty() || !rest.starts_with('(') { + return AllowParse::Bare; + } + let Some(close) = rest.find(')') else { + return AllowParse::Invalid(InvalidQualAllow::UnclosedParens( + rest[1..].trim().to_string(), + )); + }; + let inner = rest[1..close].trim(); + if inner.is_empty() { + return AllowParse::Bare; + } + let after = rest.get(close + 1..).map(str::trim).unwrap_or(""); + let reason = (!after.is_empty()).then(|| extract_reason(after)).flatten(); + classify_entries(line, inner, reason) +} - let (dimensions, reason_text) = if rest.is_empty() || !rest.starts_with('(') { - (vec![], rest) - } else { - // Require a closing paren — `qual:allow(iosp` (no close) is - // malformed; falling back to `rest.len()` would treat the - // tail as a valid dim list. Such markers route through - // `detect_invalid_qual_allow` instead. - let close_paren = rest.find(')')?; - let dims_str = &rest[1..close_paren]; - let dimensions: Vec = dims_str - .split(',') - .filter_map(|s| Dimension::from_str_opt(s.trim())) - .collect(); - let after_parens = rest.get(close_paren + 1..).map(str::trim).unwrap_or(""); - (dimensions, after_parens) +/// Classify the comma-separated entries. The first must be a dimension; the +/// rest are either more dimensions (bare multi-dim) or a single target. +/// Operation: entry dispatch reaching non-violation helpers. +fn classify_entries(line: usize, inner: &str, reason: Option) -> AllowParse { + let entries: Vec<&str> = inner.split(',').map(str::trim).collect(); + let Some(dim0) = Dimension::from_str_opt(entries[0]) else { + return AllowParse::Invalid(InvalidQualAllow::UnknownDimensions(inner.to_string())); }; + let extra = &entries[1..]; + if extra.is_empty() { + return blanket_or_invalid(line, vec![dim0], reason); + } + // An entry is "target-like" if it pins a value or is not a dimension. + let target_like = |e: &&str| e.contains('=') || Dimension::from_str_opt(e).is_none(); + if !extra.iter().any(target_like) { + let dims = std::iter::once(dim0) + .chain(extra.iter().filter_map(|e| Dimension::from_str_opt(e))) + .collect(); + return blanket_or_invalid(line, dims, reason); + } + classify_target(line, dim0, extra, reason) +} - if dimensions.is_empty() { - return None; +/// A bare (untargeted) `allow(dim)` is valid only for dimensions with no +/// targets (`iosp`). For a multi-kind dimension it must name a target, so the +/// suppression says what it silences — otherwise it is rejected. +/// Operation: target-vocabulary check, no own calls. +fn blanket_or_invalid(line: usize, dims: Vec, reason: Option) -> AllowParse { + if let Some(dim) = dims.iter().copied().find(|d| !target_names(*d).is_empty()) { + return AllowParse::Invalid(InvalidQualAllow::BlanketNotAllowed { + dim: dim.to_string(), + valid: target_names(dim).iter().map(|s| s.to_string()).collect(), + }); } + AllowParse::Valid(Suppression::blanket(line, dims, reason)) +} - let reason = (!reason_text.is_empty()) - .then(|| extract_reason(reason_text)) - .flatten(); +/// Classify a single `name` or `name=value` target against the dimension's +/// vocabulary. Enforces metric⇒value, boolean⇒no-value, and a mandatory +/// reason. More than one extra entry alongside a target is an unknown-target +/// error (dimensions and a target cannot be mixed). The dimension's canonical +/// name (via `Display`) is used in error text, so no raw string is threaded. +/// Operation: vocabulary dispatch reaching non-violation helpers. +fn classify_target( + line: usize, + dim: Dimension, + extra: &[&str], + reason: Option, +) -> AllowParse { + let unknown = |target: String| { + AllowParse::Invalid(InvalidQualAllow::UnknownTarget { + dim: dim.to_string(), + target, + valid: target_names(dim).iter().map(|s| s.to_string()).collect(), + }) + }; + if extra.len() != 1 { + return unknown(extra.join(", ")); + } + let (name, value) = match extra[0].split_once('=') { + Some((n, v)) => (n.trim(), Some(v.trim())), + None => (extra[0], None), + }; + match target_kind(dim, name) { + None => unknown(name.to_string()), + Some(TargetKind::Metric) => classify_metric(line, dim, name, value, reason), + Some(TargetKind::Boolean) => classify_boolean(line, dim, name, value, reason), + } +} - Some(Suppression { - line: line_number, - dimensions, +/// Build a metric (pinned) target: value mandatory + parseable, reason +/// mandatory. +/// Operation: value/reason validation, no own calls. +fn classify_metric( + line: usize, + dim: Dimension, + name: &str, + value: Option<&str>, + reason: Option, +) -> AllowParse { + let Some(value) = value else { + return AllowParse::Invalid(InvalidQualAllow::MetricNeedsValue { + dim: dim.to_string(), + target: name.to_string(), + }); + }; + // A pin must be a finite, non-negative number. `inf` parses but makes + // `value <= pin` always true (the pin would never re-fire — its whole + // point); `NaN` silences nothing; a negative pin is meaningless for the + // non-negative metrics. All rejected as a bad pin value. + let pin = match value.parse::() { + Ok(p) if p.is_finite() && p >= 0.0 => p, + _ => { + return AllowParse::Invalid(InvalidQualAllow::BadPinValue { + target: name.to_string(), + value: value.to_string(), + }); + } + }; + if reason.is_none() { + return AllowParse::Invalid(InvalidQualAllow::TargetNeedsReason { + dim: dim.to_string(), + target: name.to_string(), + }); + } + AllowParse::Valid(Suppression { + line, + dimensions: vec![dim], + reason, + target: Some(SuppressionTarget::Metric { + name: name.to_string(), + pin, + }), + }) +} + +/// Build a boolean target: value rejected, reason mandatory. +/// Operation: value/reason validation, no own calls. +fn classify_boolean( + line: usize, + dim: Dimension, + name: &str, + value: Option<&str>, + reason: Option, +) -> AllowParse { + if value.is_some() { + return AllowParse::Invalid(InvalidQualAllow::BooleanTakesNoValue { + dim: dim.to_string(), + target: name.to_string(), + }); + } + if reason.is_none() { + return AllowParse::Invalid(InvalidQualAllow::TargetNeedsReason { + dim: dim.to_string(), + target: name.to_string(), + }); + } + AllowParse::Valid(Suppression { + line, + dimensions: vec![dim], reason, + target: Some(SuppressionTarget::Boolean { + name: name.to_string(), + }), }) } diff --git a/src/adapters/suppression/tests/mod.rs b/src/adapters/suppression/tests/mod.rs index 315290c7..77d40e59 100644 --- a/src/adapters/suppression/tests/mod.rs +++ b/src/adapters/suppression/tests/mod.rs @@ -1 +1,2 @@ mod qual_allow; +mod targeted; diff --git a/src/adapters/suppression/tests/qual_allow.rs b/src/adapters/suppression/tests/qual_allow.rs index 75f91734..47cb86d3 100644 --- a/src/adapters/suppression/tests/qual_allow.rs +++ b/src/adapters/suppression/tests/qual_allow.rs @@ -101,11 +101,19 @@ fn test_invalid_qual_allow_reason_distinguishes_kinds() { } #[test] -fn test_detect_invalid_qual_allow_passes_partial_recognized_dims() { - // At least one recognized dim → partially valid → not flagged - // here (the parser keeps the recognized parts as a real - // Suppression). - assert!(detect_invalid_qual_allow("// qual:allow(srp, srp_params)").is_none()); +fn test_detect_invalid_qual_allow_flags_unknown_target() { + // `srp` is a valid dim, but the second entry is no longer silently + // dropped — it is read as a *target*, and `srp_params` is not a known + // srp target, so the marker surfaces as invalid with the valid list. + // This is exactly what stops an agent inventing a non-existent target. + match detect_invalid_qual_allow("// qual:allow(srp, srp_params)") { + Some(InvalidQualAllow::UnknownTarget { dim, target, valid }) => { + assert_eq!(dim, "srp"); + assert_eq!(target, "srp_params"); + assert!(valid.contains(&"file_length".to_string())); + } + other => panic!("expected UnknownTarget, got {other:?}"), + } } #[test] @@ -116,9 +124,10 @@ fn test_parse_qual_allow_iosp() { } #[test] -fn test_parse_qual_allow_multiple_dims() { - let s = parse_suppression(1, "// qual:allow(iosp, complexity)").unwrap(); - assert_eq!(s.dimensions, vec![Dimension::Iosp, Dimension::Complexity]); +fn test_multi_dim_blanket_rejected() { + // Bare multi-dimension allow is gone: a multi-kind dim must name a target, + // and one marker cannot target two dimensions. Use separate markers. + assert!(parse_suppression(1, "// qual:allow(iosp, complexity)").is_none()); } #[test] diff --git a/src/adapters/suppression/tests/targeted.rs b/src/adapters/suppression/tests/targeted.rs new file mode 100644 index 00000000..21c499d8 --- /dev/null +++ b/src/adapters/suppression/tests/targeted.rs @@ -0,0 +1,165 @@ +//! Tests for the targeted-suppression grammar: `allow(dim, target[, =N])`. +//! Metric targets require a value (no blind threshold suppression); boolean +//! targets reject a value; every targeted form requires a reason. + +use crate::adapters::suppression::qual_allow::*; + +#[test] +fn test_parse_targeted_metric_pin() { + let s = parse_suppression( + 7, + "// qual:allow(srp, file_length=400) reason: \"long but cohesive\"", + ) + .unwrap(); + assert_eq!(s.dimensions, vec![Dimension::Srp]); + let target = s.target.expect("should be targeted"); + assert!(matches!( + target, + crate::domain::SuppressionTarget::Metric { .. } + )); + assert_eq!(target.name(), "file_length"); + assert_eq!(target.pin(), Some(400.0)); + assert_eq!(s.reason.as_deref(), Some("long but cohesive")); +} + +#[test] +fn test_parse_targeted_boolean() { + let s = parse_suppression(1, "// qual:allow(complexity, unsafe) reason: \"ffi\"").unwrap(); + assert_eq!(s.dimensions, vec![Dimension::Complexity]); + let target = s.target.expect("should be targeted"); + assert!(matches!( + target, + crate::domain::SuppressionTarget::Boolean { .. } + )); + assert_eq!(target.name(), "unsafe"); + assert_eq!(target.pin(), None); +} + +#[test] +fn test_blanket_allow_has_no_target() { + // `iosp` is the only dimension whose bare (untargeted) form is valid. + let s = parse_suppression(1, "// qual:allow(iosp)").unwrap(); + assert!(s.target.is_none()); +} + +#[test] +fn test_targeted_suppression_has_exactly_one_dimension() { + // Invariant: a target pins a finding-kind WITHIN one dimension, so any + // valid targeted parse must carry exactly one dimension (a target across + // several dimensions is meaningless). Pins the convention the type does + // not yet enforce structurally. + for line in [ + "// qual:allow(srp, file_length=400) reason: \"x\"", + "// qual:allow(complexity, unsafe) reason: \"x\"", + "// qual:allow(test_quality, no_sut) reason: \"x\"", + ] { + let s = parse_suppression(1, line).unwrap(); + assert!(s.target.is_some(), "{line} should be targeted"); + assert_eq!( + s.dimensions.len(), + 1, + "targeted marker must have one dim: {line}" + ); + } +} + +#[test] +fn test_metric_target_requires_value() { + // A value-less metric suppression would be blind forever — rejected. + assert!(parse_suppression(1, "// qual:allow(srp, file_length) reason: \"x\"").is_none()); + assert_eq!( + detect_invalid_qual_allow("// qual:allow(srp, file_length) reason: \"x\""), + Some(InvalidQualAllow::MetricNeedsValue { + dim: "srp".into(), + target: "file_length".into(), + }) + ); +} + +#[test] +fn test_bare_multikind_dim_rejected() { + // A bare allow() would silence every finding of that + // dimension — rejected in favour of a named target. + assert!(parse_suppression(1, "// qual:allow(srp)").is_none()); + match detect_invalid_qual_allow("// qual:allow(srp)") { + Some(InvalidQualAllow::BlanketNotAllowed { dim, valid }) => { + assert_eq!(dim, "srp"); + assert!(valid.contains(&"god_struct".to_string()), "got {valid:?}"); + } + other => panic!("expected BlanketNotAllowed, got {other:?}"), + } + // `iosp` has no targets, so its bare form stays valid. + assert!(parse_suppression(1, "// qual:allow(iosp)").is_some()); +} + +#[test] +fn test_boolean_target_rejects_value() { + assert!(parse_suppression(1, "// qual:allow(complexity, unsafe=5) reason: \"x\"").is_none()); + assert_eq!( + detect_invalid_qual_allow("// qual:allow(complexity, unsafe=5) reason: \"x\""), + Some(InvalidQualAllow::BooleanTakesNoValue { + dim: "complexity".into(), + target: "unsafe".into(), + }) + ); +} + +#[test] +fn test_targeted_requires_reason() { + // A pin without a reason is rejected — the reason is mandatory friction. + assert!(parse_suppression(1, "// qual:allow(srp, file_length=400)").is_none()); + assert_eq!( + detect_invalid_qual_allow("// qual:allow(srp, file_length=400)"), + Some(InvalidQualAllow::TargetNeedsReason { + dim: "srp".into(), + target: "file_length".into(), + }) + ); +} + +#[test] +fn test_bad_pin_value() { + assert_eq!( + detect_invalid_qual_allow("// qual:allow(srp, file_length=abc) reason: \"x\""), + Some(InvalidQualAllow::BadPinValue { + target: "file_length".into(), + value: "abc".into(), + }) + ); +} + +#[test] +fn test_non_finite_and_negative_pins_rejected() { + // `inf` parses as f64 but `v <= inf` is always true → the pin would never + // re-fire, breaking its core promise. `NaN` silences nothing, and a + // negative pin is meaningless for a non-negative metric. All rejected. + for bad in ["inf", "-inf", "NaN", "-1", "-0.5"] { + let line = format!("// qual:allow(srp, file_length={bad}) reason: \"x\""); + assert!( + parse_suppression(1, &line).is_none(), + "pin {bad} must be rejected" + ); + assert_eq!( + detect_invalid_qual_allow(&line), + Some(InvalidQualAllow::BadPinValue { + target: "file_length".into(), + value: bad.into(), + }), + "pin {bad}" + ); + } + // a finite, non-negative pin still parses + assert!(parse_suppression(1, "// qual:allow(srp, file_length=0) reason: \"x\"").is_some()); +} + +#[test] +fn test_unknown_target_lists_valid_targets() { + match detect_invalid_qual_allow("// qual:allow(complexity, max_lines=5) reason: \"x\"") { + Some(InvalidQualAllow::UnknownTarget { dim, target, valid }) => { + assert_eq!(dim, "complexity"); + assert_eq!(target, "max_lines"); + assert!(valid.contains(&"max_function_lines".to_string())); + } + other => panic!("expected UnknownTarget, got {other:?}"), + } +} diff --git a/src/app/architecture.rs b/src/app/architecture.rs index fee1c29e..b67d6647 100644 --- a/src/app/architecture.rs +++ b/src/app/architecture.rs @@ -70,25 +70,29 @@ fn run_architecture_dimension( findings } -/// Mark findings whose annotation window contains a -/// `// qual:allow(architecture)` suppression. +/// Mark findings whose annotation window contains a matching +/// `// qual:allow(architecture[, family])` suppression. /// /// Window-scoped (not file-scoped): a suppression at line N covers /// findings at lines `N..=N+ANNOTATION_WINDOW`. Otherwise a single /// `qual:allow(architecture)` for one helper would silence unrelated /// call-parity, layer, or forbidden-edge findings elsewhere in the -/// same file. Operation: per-finding lookup over the suppression map. +/// same file. A blanket `allow(architecture)` silences any family; a +/// targeted `allow(architecture, layer)` silences only that family (the +/// `architecture//…` segment of the finding's rule id). +/// Operation: per-finding lookup over the suppression map. pub(super) fn mark_architecture_suppressions( findings: &mut [Finding], suppression_lines: &HashMap>, ) { findings.iter_mut().for_each(|f| { + let family = arch_family(&f.rule_id); let suppressed = suppression_lines .get(&f.file) .map(|sups| { sups.iter().any(|s| { - s.covers(Dimension::Architecture) - && crate::findings::is_within_window(s.line, f.line) + crate::findings::is_within_window(s.line, f.line) + && s.suppresses(Dimension::Architecture, family, None) }) }) .unwrap_or(false); @@ -97,3 +101,17 @@ pub(super) fn mark_architecture_suppressions( } }); } + +/// Top-level rule family of an architecture finding: the first segment after +/// `architecture/` (`architecture/layer/unmatched` → `layer`). Empty when the +/// id has no family — then only a blanket marker could silence it, but a bare +/// `allow(architecture)` is no longer constructible via the parser (the flip), +/// so such a finding is effectively unsuppressible. Shared with the orphan +/// detector so marking and orphan-matching read the same segment. +/// Operation: prefix strip + first segment. +pub(crate) fn arch_family(rule_id: &str) -> &str { + rule_id + .strip_prefix("architecture/") + .and_then(|rest| rest.split('/').next()) + .unwrap_or("") +} diff --git a/src/app/complexity_suppressions.rs b/src/app/complexity_suppressions.rs new file mode 100644 index 00000000..d688a2b8 --- /dev/null +++ b/src/app/complexity_suppressions.rs @@ -0,0 +1,60 @@ +//! Per-kind targeted suppression for the complexity dimension. +//! +//! A blanket `allow(complexity)` is handled by +//! `FunctionAnalysis::complexity_suppressed` (set in +//! `warnings::apply_file_suppressions`, blanket-only). This module decides +//! whether a *targeted* `allow(complexity, [=N])` silences one specific +//! kind: `max_cognitive` / `max_cyclomatic` / `max_nesting_depth` / +//! `max_function_lines` (metric pins) or `magic_numbers` / `error_handling` / +//! `unsafe` (boolean). Keeping it separate keeps `warnings.rs` focused. + +use std::collections::HashMap; + +use crate::adapters::analyzers::iosp::FunctionAnalysis; +use crate::findings::{Dimension, Suppression}; + +/// True when a targeted complexity suppression adjacent to `fa` silences the +/// `target` kind at metric `value` (`None` for boolean kinds). Blanket +/// suppressions are excluded here — they are handled upstream via +/// `complexity_suppressed`. +/// Operation: file lookup + adjacency/pin check via closures. +pub(crate) fn cx_target_suppressed( + suppression_lines: &HashMap>, + fa: &FunctionAnalysis, + target: &str, + value: Option, +) -> bool { + let window = crate::findings::ANNOTATION_WINDOW; + suppression_lines.get(&fa.file).is_some_and(|sups| { + sups.iter().any(|s| { + let adjacent = s.line <= fa.line && fa.line - s.line <= window; + adjacent && s.target.is_some() && s.suppresses(Dimension::Complexity, target, value) + }) + }) +} + +/// Whether a metric kind warns: it `exceeds` its threshold and is not silenced +/// by a targeted pin honouring `value`. Keeps the `&&` and the lookup out of +/// the warning passes so those stay simple. +/// Operation: boolean combination, own call hidden behind the `&&`. +pub(crate) fn metric_warns( + suppression_lines: &HashMap>, + fa: &FunctionAnalysis, + exceeds: bool, + value: f64, + target: &str, +) -> bool { + exceeds && !cx_target_suppressed(suppression_lines, fa, target, Some(value)) +} + +/// Whether a boolean kind warns: the issue is `present` and not silenced by a +/// targeted `allow(complexity, )`. +/// Operation: boolean combination. +pub(crate) fn bool_warns( + suppression_lines: &HashMap>, + fa: &FunctionAnalysis, + present: bool, + target: &str, +) -> bool { + present && !cx_target_suppressed(suppression_lines, fa, target, None) +} diff --git a/src/app/coupling_suppressions.rs b/src/app/coupling_suppressions.rs new file mode 100644 index 00000000..657c6855 --- /dev/null +++ b/src/app/coupling_suppressions.rs @@ -0,0 +1,86 @@ +//! Module-keyed, target-aware coupling suppression. +//! +//! Coupling markers are MODULE-GLOBAL: `// qual:allow(coupling[, target])` in +//! any file of a module applies to that whole module. A blanket allow(coupling) +//! silences every coupling finding for the module; targeted forms silence one +//! kind: `max_fan_in` / `max_fan_out` / `max_instability` (metric pins) or +//! `sdp` (boolean). Cycles are never suppressible. + +use std::collections::HashMap; + +use crate::adapters::analyzers::coupling::CouplingAnalysis; +use crate::adapters::shared::file_to_module::file_to_module; +use crate::findings::{Dimension, Suppression}; + +/// Coupling suppressions grouped by the module they apply to. +pub(crate) struct ModuleCouplingSuppressions { + by_module: HashMap>, +} + +impl ModuleCouplingSuppressions { + /// Build from per-file suppression lines, keeping only coupling markers and + /// mapping each file to its module. + /// Operation: grouping via closures. + pub(crate) fn build(suppression_lines: &HashMap>) -> Self { + let mut by_module: HashMap> = HashMap::new(); + suppression_lines.iter().for_each(|(path, sups)| { + let module = file_to_module(path); + sups.iter() + .filter(|s| s.covers(Dimension::Coupling)) + .for_each(|s| { + by_module.entry(module.clone()).or_default().push(s.clone()); + }); + }); + Self { by_module } + } + + /// Whether `module` has a blanket (untargeted) coupling suppression. + /// Operation: lookup + any. + pub(crate) fn blanket(&self, module: &str) -> bool { + self.by_module + .get(module) + .is_some_and(|v| v.iter().any(|s| s.target.is_none())) + } + + /// Whether `module`'s `target` finding at `value` is silenced (blanket or a + /// matching targeted pin). + /// Operation: lookup + any. + pub(crate) fn suppresses(&self, module: &str, target: &str, value: Option) -> bool { + self.by_module.get(module).is_some_and(|v| { + v.iter() + .any(|s| s.suppresses(Dimension::Coupling, target, value)) + }) + } +} + +/// Mark each module's blanket suppression flag (used for SDP inheritance and +/// leaf handling). Targeted metric/sdp suppression is applied at count time. +/// Operation: iterates metrics setting the blanket flag. +pub(crate) fn mark_coupling_blanket( + analysis: Option<&mut CouplingAnalysis>, + sups: &ModuleCouplingSuppressions, +) { + let Some(analysis) = analysis else { return }; + analysis.metrics.iter_mut().for_each(|m| { + if sups.blanket(&m.module_name) { + m.suppressed = true; + } + }); +} + +/// Suppress SDP violations whose source/target module carries a targeted +/// `allow(coupling, sdp)` (blanket suppression is already inherited in +/// `populate_sdp_violations`). +/// Operation: iterates violations applying the sdp target. +pub(crate) fn mark_sdp_target_suppressions( + analysis: &mut CouplingAnalysis, + sups: &ModuleCouplingSuppressions, +) { + analysis.sdp_violations.iter_mut().for_each(|v| { + if sups.suppresses(&v.from_module, "sdp", None) + || sups.suppresses(&v.to_module, "sdp", None) + { + v.suppressed = true; + } + }); +} diff --git a/src/app/dry_suppressions.rs b/src/app/dry_suppressions.rs index a5d10c13..41e7b6ae 100644 --- a/src/app/dry_suppressions.rs +++ b/src/app/dry_suppressions.rs @@ -2,11 +2,14 @@ use crate::findings::Suppression; /// Trait for DRY finding groups that can be suppressed. pub(crate) trait DrySuppressible { + /// The `allow(dry, )` name that silences this finding-kind. + const TARGET: &'static str; fn set_suppressed(&mut self, val: bool); fn entry_locations(&self) -> Vec<(&str, usize)>; } impl DrySuppressible for crate::adapters::analyzers::dry::functions::DuplicateGroup { + const TARGET: &'static str = "duplicate"; fn set_suppressed(&mut self, val: bool) { self.suppressed = val; } @@ -19,6 +22,7 @@ impl DrySuppressible for crate::adapters::analyzers::dry::functions::DuplicateGr } impl DrySuppressible for crate::adapters::analyzers::dry::match_patterns::RepeatedMatchGroup { + const TARGET: &'static str = "repeated_matches"; fn set_suppressed(&mut self, val: bool) { self.suppressed = val; } @@ -31,6 +35,7 @@ impl DrySuppressible for crate::adapters::analyzers::dry::match_patterns::Repeat } impl DrySuppressible for crate::adapters::analyzers::dry::fragments::FragmentGroup { + const TARGET: &'static str = "fragment"; fn set_suppressed(&mut self, val: bool) { self.suppressed = val; } @@ -43,6 +48,7 @@ impl DrySuppressible for crate::adapters::analyzers::dry::fragments::FragmentGro } impl DrySuppressible for crate::adapters::analyzers::dry::boilerplate::BoilerplateFind { + const TARGET: &'static str = "boilerplate"; fn set_suppressed(&mut self, val: bool) { self.suppressed = val; } @@ -64,7 +70,8 @@ pub(crate) fn mark_dry_suppressions( .get(*file) .map(|sups| { sups.iter().any(|sup| { - crate::findings::is_within_window(sup.line, *line) && sup.covers(dry_dim) + crate::findings::is_within_window(sup.line, *line) + && sup.suppresses(dry_dim, T::TARGET, None) }) }) .unwrap_or(false) diff --git a/src/app/metrics.rs b/src/app/metrics.rs index ea279bbc..22a82ef3 100644 --- a/src/app/metrics.rs +++ b/src/app/metrics.rs @@ -19,58 +19,43 @@ pub(super) fn compute_coupling( )) } -/// Mark coupling metrics as suppressed based on `// qual:allow(coupling)` comments. -/// Operation: iteration + suppression check logic, no own calls. -/// A module is suppressed if ANY of its files contains a coupling suppression. -pub(super) fn mark_coupling_suppressions( - analysis: Option<&mut crate::adapters::analyzers::coupling::CouplingAnalysis>, - suppression_lines: &std::collections::HashMap>, -) { - let Some(analysis) = analysis else { return }; - - // Collect module names that have coupling suppressions in any of their files - let suppressed_modules: std::collections::HashSet = suppression_lines - .iter() - .filter(|(_, sups)| { - sups.iter() - .any(|s| s.covers(crate::findings::Dimension::Coupling)) - }) - .map(|(path, _)| crate::adapters::shared::file_to_module::file_to_module(path)) - .collect(); - - for m in &mut analysis.metrics { - if suppressed_modules.contains(&m.module_name) { - m.suppressed = true; - } - } -} - -/// Count coupling warnings and update summary. -/// Operation: iteration + threshold comparison logic, no own calls. -/// Leaf modules (afferent=0) are excluded from instability warnings -/// because I=1.0 is the natural, harmless state for leaf modules. -/// Suppressed modules are excluded from all coupling warnings. +/// Count coupling warnings and update summary. Each module-level metric +/// (instability / fan-in / fan-out) is gated by a blanket or targeted +/// `allow(coupling, …)`; leaf modules (afferent=0) are instability-exempt. +/// Operation: iterates metrics, delegating the per-module decision. pub(super) fn count_coupling_warnings( analysis: Option<&mut crate::adapters::analyzers::coupling::CouplingAnalysis>, config: &crate::config::sections::CouplingConfig, + sups: &crate::app::coupling_suppressions::ModuleCouplingSuppressions, summary: &mut Summary, ) { let Some(analysis) = analysis else { return }; for m in &mut analysis.metrics { - m.warning = false; - if m.suppressed { - continue; - } - let instability_exceeded = m.afferent > 0 && m.instability > config.max_instability; - if instability_exceeded || m.afferent > config.max_fan_in || m.efferent > config.max_fan_out - { - m.warning = true; + m.warning = module_coupling_warns(m, config, sups); + if m.warning { summary.coupling_warnings += 1; } } summary.coupling_cycles = analysis.cycles.len(); } +/// Whether a module has any unsuppressed coupling metric breach. +/// Operation: per-metric checks reaching the suppression helper. +fn module_coupling_warns( + m: &crate::adapters::analyzers::coupling::CouplingMetrics, + config: &crate::config::sections::CouplingConfig, + sups: &crate::app::coupling_suppressions::ModuleCouplingSuppressions, +) -> bool { + let inst = m.afferent > 0 + && m.instability > config.max_instability + && !sups.suppresses(&m.module_name, "max_instability", Some(m.instability)); + let fan_in = m.afferent > config.max_fan_in + && !sups.suppresses(&m.module_name, "max_fan_in", Some(m.afferent as f64)); + let fan_out = m.efferent > config.max_fan_out + && !sups.suppresses(&m.module_name, "max_fan_out", Some(m.efferent as f64)); + inst || fan_in || fan_out +} + /// Run a detection pass if enabled, returning empty vec when disabled. /// Operation: conditional guard + closure invocation (lenient). pub(super) fn run_guarded_detection( @@ -126,7 +111,6 @@ pub(super) fn run_dry_detection( } crate::adapters::analyzers::dry::dead_code::detect_dead_code( p, - c, annotation_lines.api, annotation_lines.test_helper, cfg_test_files, @@ -202,48 +186,6 @@ pub(super) fn count_dry_findings( .sum(); } -/// Mark SRP warnings as suppressed based on `// qual:allow(srp)` comments. -/// Operation: iteration + suppression matching via closures (no own calls). -pub(super) fn mark_srp_suppressions( - srp: Option<&mut crate::adapters::analyzers::srp::SrpAnalysis>, - suppression_lines: &std::collections::HashMap>, -) { - let Some(srp) = srp else { return }; - - // Struct suppressions: comment may be several lines above due to #[derive(...)] attributes - // Window width shared with the orphan detector, see - // `app::suppression_windows::SRP_STRUCT_PARAM`. - const SRP_STRUCT_SUPPRESSION_WINDOW: usize = super::suppression_windows::SRP_STRUCT_PARAM; - let srp_dim = crate::findings::Dimension::Srp; - - srp.struct_warnings.iter_mut().for_each(|w| { - if let Some(sups) = suppression_lines.get(&w.file) { - w.suppressed = sups.iter().any(|sup| { - let in_window = - sup.line <= w.line && w.line - sup.line <= SRP_STRUCT_SUPPRESSION_WINDOW; - in_window && sup.covers(srp_dim) - }); - } - }); - - srp.module_warnings.iter_mut().for_each(|w| { - if let Some(sups) = suppression_lines.get(&w.file) { - w.suppressed = sups.iter().any(|sup| sup.covers(srp_dim)); - } - }); - - // Param suppressions: proximity-based like struct warnings (attributes above fn) - srp.param_warnings.iter_mut().for_each(|w| { - if let Some(sups) = suppression_lines.get(&w.file) { - w.suppressed = sups.iter().any(|sup| { - let in_window = - sup.line <= w.line && w.line - sup.line <= SRP_STRUCT_SUPPRESSION_WINDOW; - in_window && sup.covers(srp_dim) - }); - } - }); -} - /// Mark wildcard import warnings as suppressed based on `// qual:allow(dry)` comments. /// Operation: iteration + suppression check, no own calls. pub(super) fn mark_wildcard_suppressions( @@ -257,7 +199,9 @@ pub(super) fn mark_wildcard_suppressions( warnings.iter_mut().for_each(|w| { if let Some(sups) = suppression_lines.get(&w.file) { w.suppressed = sups.iter().any(|sup| { - sup.line <= w.line && w.line - sup.line <= window && sup.covers(dry_dim) + sup.line <= w.line + && w.line - sup.line <= window + && sup.suppresses(dry_dim, "wildcard_imports", None) }); } }); @@ -305,21 +249,12 @@ pub(super) fn compute_srp( if !config.srp.enabled { return None; } - let test_length_thresholds = ( - config - .tests - .file_length_baseline - .unwrap_or(config.srp.file_length_baseline), - config - .tests - .file_length_ceiling - .unwrap_or(config.srp.file_length_ceiling), - ); + let test_file_length = config.tests.file_length.unwrap_or(config.srp.file_length); Some(crate::adapters::analyzers::srp::analyze_srp( parsed, &config.srp, file_call_graph, - test_length_thresholds, + test_file_length, )) } diff --git a/src/app/mod.rs b/src/app/mod.rs index 1a2f0435..353744eb 100644 --- a/src/app/mod.rs +++ b/src/app/mod.rs @@ -1,4 +1,3 @@ -// qual:allow(coupling) reason: "application layer orchestrates adapters + ports — high instability is expected" //! Application layer — use-cases that orchestrate adapters through ports. //! //! The Application layer is rustqual's business-logic tier. Each use-case @@ -9,6 +8,8 @@ pub mod analyze_codebase; mod architecture; +pub(crate) mod complexity_suppressions; +pub(crate) mod coupling_suppressions; pub(crate) mod dry_suppressions; pub(crate) mod exit_gates; pub(crate) mod metrics; @@ -17,6 +18,7 @@ pub(crate) mod pipeline; pub(crate) mod projection; pub(crate) mod secondary; pub(crate) mod setup; +pub(crate) mod srp_suppressions; pub(crate) mod structural_metrics; pub(crate) mod suppression_windows; pub(crate) mod tq_metrics; diff --git a/src/app/orphan_suppressions/complexity_predicates.rs b/src/app/orphan_suppressions/complexity_predicates.rs index 5faffbc0..c589fefe 100644 --- a/src/app/orphan_suppressions/complexity_predicates.rs +++ b/src/app/orphan_suppressions/complexity_predicates.rs @@ -1,36 +1,49 @@ //! Config-gated predicates mirroring `apply_extended_warnings`. //! -//! These helpers tell the orphan checker whether a function's raw -//! complexity metrics would trigger a warning under the active -//! config — needed because a `// qual:allow(complexity)` marker -//! clears the `*_warning` flags on the `FunctionAnalysis` before the -//! orphan pass sees it. Reading raw metrics + config lets us -//! recognize those markers as non-orphan. +//! These helpers tell the orphan checker which suppression-targets a +//! function's raw complexity metrics trip under the active config — needed +//! because a `// qual:allow(complexity, …)` marker clears the `*_warning` +//! flags on the `FunctionAnalysis` before the orphan pass sees it. Reading +//! raw metrics + config lets us recognize those markers as non-orphan, and +//! lets the too-loose-pin check compare a pin against the actual value. use crate::adapters::analyzers::iosp::{ComplexityMetrics, FunctionAnalysis}; use crate::config::sections::ComplexityConfig; -/// True if the raw complexity metrics of a function would trigger any -/// complexity warning under the active config. -/// Integration: delegates to per-aspect predicates. -pub(super) fn would_trigger( +/// The complexity suppression-targets a function trips under the active +/// config, each paired with its raw value (`None` for the boolean targets +/// `unsafe` / `error_handling`). Drives orphan target-matching and the +/// too-loose-pin check: a `allow(complexity, max_cognitive=…)` marker is +/// non-stale only when `max_cognitive` is in this list, and its pin is +/// judged against the paired value. Magic numbers are handled separately +/// (per-occurrence lines), not here. +/// Operation: per-aspect threshold checks collecting (target, value) pairs. +pub(super) fn triggered_targets( f: &FunctionAnalysis, c: &ComplexityMetrics, cx: &ComplexityConfig, test_max_lines: usize, -) -> bool { - exceeds_basic_thresholds(c, cx) - || exceeds_length(f, c, cx, test_max_lines) - || exceeds_unsafe(c, cx) - || exceeds_error_handling(f, c, cx) -} - -/// True if cognitive / cyclomatic / nesting exceed their thresholds. -/// Operation: comparison logic. -fn exceeds_basic_thresholds(c: &ComplexityMetrics, cx: &ComplexityConfig) -> bool { - c.cognitive_complexity > cx.max_cognitive - || c.cyclomatic_complexity > cx.max_cyclomatic - || c.max_nesting > cx.max_nesting_depth +) -> Vec<(&'static str, Option)> { + let mut out = Vec::new(); + if c.cognitive_complexity > cx.max_cognitive { + out.push(("max_cognitive", Some(c.cognitive_complexity as f64))); + } + if c.cyclomatic_complexity > cx.max_cyclomatic { + out.push(("max_cyclomatic", Some(c.cyclomatic_complexity as f64))); + } + if c.max_nesting > cx.max_nesting_depth { + out.push(("max_nesting_depth", Some(c.max_nesting as f64))); + } + if exceeds_length(f, c, cx, test_max_lines) { + out.push(("max_function_lines", Some(c.function_lines as f64))); + } + if exceeds_unsafe(c, cx) { + out.push(("unsafe", None)); + } + if exceeds_error_handling(f, c, cx) { + out.push(("error_handling", None)); + } + out } /// True if the function exceeds its length cap — test fns use `test_max_lines` diff --git a/src/app/orphan_suppressions/mod.rs b/src/app/orphan_suppressions/mod.rs index da9c05b8..5504e063 100644 --- a/src/app/orphan_suppressions/mod.rs +++ b/src/app/orphan_suppressions/mod.rs @@ -1,45 +1,29 @@ //! Orphan-suppression detector. //! -//! An orphan `// qual:allow(...)` marker is one that doesn't match any -//! finding within its annotation window — typically a stale -//! suppression (the underlying finding was fixed or moved) or a -//! misplaced annotation. Orphans are emitted as a distinct finding -//! category (`ORPHAN_SUPPRESSION`) so they show up in every output -//! format (text, JSON, AI, SARIF, ...) just like any other finding — -//! one-shot `--format ai` invocations don't miss them. +//! An orphan `// qual:allow(...)` marker is one worth reporting: either +//! *stale* — it matches no finding within its annotation window (the +//! underlying finding was fixed or moved, or the annotation is misplaced) — +//! or *too-loose* — a metric pin that does match a finding but sits further +//! above the value it covers than `pin_headroom` allows. Orphans are emitted +//! as a distinct finding category (`ORPHAN_SUPPRESSION`) so they show up in +//! every output format (text, JSON, AI, SARIF, ...) just like any other +//! finding — one-shot `--format ai` invocations don't miss them. mod complexity_predicates; +mod positions; use std::collections::HashMap; -use crate::adapters::analyzers::iosp::Classification; use crate::adapters::suppression::qual_allow::InvalidQualAllow; -use crate::domain::findings::OrphanSuppression; +use crate::domain::findings::{OrphanKind, OrphanSuppression}; use crate::findings::Suppression; -// Window widths come from the shared `app::suppression_windows` -// module so the orphan detector and the `mark_*_suppressions` -// passes can't silently diverge. -use super::suppression_windows as windows; +use positions::{enumerate_finding_positions, FindingPosition, MatchMode}; -/// How a finding position is matched against a suppression marker. -/// Mirrors the actual semantics of the per-dimension `mark_*` -/// functions so an orphan marker is only reported when no real -/// suppression site would accept it. -#[derive(Debug, Clone, Copy, PartialEq, Eq)] -enum MatchMode { - /// Line-proximity match: the finding's line must satisfy - /// `sup.line <= line && line - sup.line <= n`. - LineWindow(usize), - /// File-global match: any marker anywhere in the file accepts. - /// Used for SRP module warnings (line 1, file-level marker) — the - /// remaining dimensions, including Architecture, use line-window - /// matching that mirrors their `mark_*_suppressions` semantics. - FileScope, -} - -/// Detect `// qual:allow(...)` markers that do not match any finding -/// within their annotation window. Two input streams: +/// Detect `// qual:allow(...)` markers worth reporting — *stale* (no matching +/// finding in their annotation window) or *too-loose* (a metric pin sitting +/// further above the value it covers than `pin_headroom` allows). Two input +/// streams: /// /// - `suppression_lines`: real `Suppression` entries from the parser. /// Always carry at least one recognised dimension since 1.2.3 (bare @@ -55,7 +39,7 @@ enum MatchMode { /// only pure module-global coupling / cycle / SDP reports — the /// marker is skipped (not reported as orphan), because we cannot /// verify line-scoped match against a module-scoped finding. -/// Integration: collects finding positions, then filters unmatched markers. +/// Integration: collects finding positions, then classifies each marker. pub(crate) fn detect_orphan_suppressions( suppression_lines: &HashMap>, invalid_qual_allow_lines: &HashMap>, @@ -63,18 +47,12 @@ pub(crate) fn detect_orphan_suppressions( config: &crate::config::Config, ) -> Vec { let positions = enumerate_finding_positions(analysis, config); + let headroom = config.suppression.pin_headroom; let mut orphans: Vec = suppression_lines .iter() .flat_map(|(file, sups)| { sups.iter() - .filter(|sup| is_verifiable(sup, file, &positions)) - .filter(|sup| !has_matching_finding(file, sup, &positions)) - .map(|sup| OrphanSuppression { - file: file.clone(), - line: sup.line, - dimensions: sup.dimensions.clone(), - reason: sup.reason.clone(), - }) + .filter_map(|sup| classify_marker(file, sup, &positions, headroom)) .collect::>() }) .collect(); @@ -83,6 +61,97 @@ pub(crate) fn detect_orphan_suppressions( orphans } +/// Classify a single marker into an orphan finding, or `None` when it is a +/// healthy suppression. A marker is reported when it is verifiable and +/// either (a) matches no finding of its (dimension, target) — *stale*, or +/// (b) is a metric pin sitting more than `headroom` above the value it +/// covers — *too-loose*. A too-tight pin (its finding re-fires above it) is +/// healthy, not orphan. +/// Operation: verifiability + match/too-loose dispatch reaching helpers. +fn classify_marker( + file: &str, + sup: &Suppression, + positions: &HashMap>, + headroom: f64, +) -> Option { + if !is_verifiable(sup, file, positions) { + return None; + } + if !has_matching_finding(file, sup, positions) { + return Some(orphan(file, sup, OrphanKind::Stale, sup.reason.clone())); + } + let value = too_loose_value(file, sup, positions, headroom)?; + let pin = sup + .target + .as_ref() + .and_then(|t| t.pin()) + .unwrap_or_default(); + let reason = format!( + "pin {} sits >{:.0}% above the actual value {} — tighten to ~{} or remove", + fmt_num(pin), + headroom * 100.0, + fmt_num(value), + fmt_num(value), + ); + Some(orphan(file, sup, OrphanKind::PinTooLoose, Some(reason))) +} + +/// Build an `OrphanSuppression` for `sup` at its marker line. +/// Operation: struct construction, no own calls. +fn orphan( + file: &str, + sup: &Suppression, + kind: OrphanKind, + reason: Option, +) -> OrphanSuppression { + OrphanSuppression { + file: file.to_string(), + line: sup.line, + dimensions: sup.dimensions.clone(), + target: sup.target.clone(), + reason, + kind, + } +} + +/// Render a metric value without a trailing `.0` for whole numbers (metric +/// thresholds are integers; only `max_instability` is fractional). +/// Operation: float formatting branch, no own calls. +fn fmt_num(v: f64) -> String { + if v.fract() == 0.0 { + // `{:.0}` not `as i64`: a large finite value would saturate the cast. + format!("{v:.0}") + } else { + format!("{v}") + } +} + +/// For a metric pin that matches a finding, the largest covered value that +/// the pin sits too far above (`pin > value × (1 + headroom)`), or `None` +/// when the pin is healthy (within headroom, or too tight so nothing is +/// covered). The *largest* covered value is used: a pin must be tight to +/// whatever it actually silences, and a finding above the pin re-fires and +/// does not constrain looseness. +/// Operation: filter/fold over matching positions, no own calls. +fn too_loose_value( + file: &str, + sup: &Suppression, + positions: &HashMap>, + headroom: f64, +) -> Option { + let pin = sup.target.as_ref()?.pin()?; + let covered_max = positions + .get(file)? + .iter() + .filter(|p| position_matches(sup, p)) + .filter_map(|p| p.value) + .filter(|&v| v <= pin) + .fold(None, |acc: Option, v| { + Some(acc.map_or(v, |a| a.max(v))) + })?; + (pin > covered_max * (1.0 + headroom)).then_some(covered_max) +} + /// Project the `// qual:allow()` side-channel into orphan /// findings. These markers don't suppress anything (they're stored /// in a separate map, never reach `Suppression::covers`), but the @@ -98,7 +167,9 @@ fn invalid_marker_orphans( file: file.clone(), line: *line, dimensions: Vec::new(), + target: None, reason: Some(kind.reason()), + kind: OrphanKind::Stale, }) }) .collect() @@ -132,13 +203,38 @@ fn is_verifiable( if sup.dimensions.iter().any(|d| *d != Dimension::Coupling) { return true; } - // Coupling-only marker: verifiable iff the file has a line-anchored - // Coupling finding. + // Coupling-only marker for a *module-global* target (the fan-in/out and + // instability metrics, or the boolean sdp check) has no line-anchored + // position, so it can never match and must not be reported — unverifiable, + // not stale. (Were it verifiable, a coexisting structural finding would + // satisfy the line-anchor check below and then fail target matching, a + // false orphan.) The structural coupling targets (oi/sit/deh/iet) ARE + // line-anchored and fall through to normal verification. + if sup + .target + .as_ref() + .is_some_and(|t| is_module_global_coupling(t.name())) + { + return false; + } + // Otherwise verifiable iff the file has a line-anchored Coupling finding + // (a blanket marker, or a structural oi/sit/deh/iet target). positions .get(file) .is_some_and(|ps| ps.iter().any(|p| p.dim == Dimension::Coupling)) } +/// True if `target` is a module-global coupling target (the fan-in/out and +/// instability metrics, or the boolean sdp check — none line-anchored), as +/// opposed to a structural coupling target. +/// Operation: name membership test, no own calls. +fn is_module_global_coupling(target: &str) -> bool { + matches!( + target, + "max_fan_in" | "max_fan_out" | "max_instability" | "sdp" + ) +} + /// True if some finding in `file` matches the suppression under its /// dimension-specific match mode (line window of the right width, or /// file-global scope). @@ -148,12 +244,28 @@ fn has_matching_finding( sup: &Suppression, positions: &HashMap>, ) -> bool { - let Some(file_positions) = positions.get(file) else { + positions + .get(file) + .is_some_and(|ps| ps.iter().any(|p| position_matches(sup, p))) +} + +/// True if a finding position is what `sup` is allowed to silence: same +/// dimension and within the match window, and — for a *targeted* marker — +/// the same finding-kind (`target`). A blanket marker matches any covered +/// finding-kind of the dimension; a targeted marker matches only its own +/// kind, so a `file_length` pin no longer counts a god-struct finding as a +/// match. The pin *value* is intentionally not consulted here: presence of +/// the kind makes the marker non-stale; whether the pin is too loose/tight +/// is decided separately by `too_loose_value`. +/// Operation: dimension + target + window predicate, no own calls. +fn position_matches(sup: &Suppression, p: &FindingPosition) -> bool { + if !sup.covers(p.dim) || !mode_accepts(sup.line, p.line, p.mode) { return false; - }; - file_positions - .iter() - .any(|p| sup.covers(p.dim) && mode_accepts(sup.line, p.line, p.mode)) + } + match &sup.target { + None => true, + Some(t) => p.target == Some(t.name()), + } } /// True if a suppression at `sup_line` accepts a finding at @@ -165,260 +277,3 @@ fn mode_accepts(sup_line: usize, finding_line: usize, mode: MatchMode) -> bool { MatchMode::LineWindow(n) => finding_line >= sup_line && finding_line - sup_line <= n, } } - -/// One finding's position for orphan matching. -#[derive(Debug, Clone, Copy)] -struct FindingPosition { - line: usize, - dim: crate::findings::Dimension, - mode: MatchMode, -} - -/// Enumerate every finding's position across all seven dimensions. -/// Findings with empty `file` (global coupling / SDP / cycle reports) -/// are skipped — they have no point-location a line-scoped -/// suppression could target. Coupling is handled at the is_verifiable -/// layer, not here. -/// Integration: delegates per-dimension collection to small helpers. -fn enumerate_finding_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, -) -> HashMap> { - let mut out: HashMap> = HashMap::new(); - let mut push = |file: &str, line: usize, dim: crate::findings::Dimension, mode: MatchMode| { - if !file.is_empty() { - out.entry(file.to_string()) - .or_default() - .push(FindingPosition { line, dim, mode }); - } - }; - collect_iosp_complexity_positions(analysis, config, &mut push); - collect_dry_positions(analysis, config, &mut push); - collect_srp_positions(analysis, config, &mut push); - collect_tq_positions(analysis, config, &mut push); - collect_structural_positions(analysis, config, &mut push); - collect_architecture_positions(analysis, config, &mut push); - out -} - -/// Positions for IOSP violations + Complexity warnings. Reads the raw -/// complexity metrics against config thresholds (not the -/// `*_warning` flags), so a suppressed `// qual:allow(complexity)` -/// marker — which clears those flags — still registers as a matching -/// target for the orphan checker. Mirrors the same config-gated -/// predicates that `apply_extended_warnings` uses (`detect_unsafe`, -/// `detect_error_handling`, `allow_expect`, `detect_magic_numbers`, -/// `is_test` skip for length / error-handling / magic numbers), so a -/// marker is only counted as non-orphan if the corresponding check is -/// actually enabled in the active config. -/// Operation: threshold checks pushing per-flag positions. -fn collect_iosp_complexity_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - use crate::findings::Dimension; - let mode = MatchMode::LineWindow(windows::DEFAULT); - let complexity_enabled = config.complexity.enabled; - let test_max_lines = config - .tests - .max_function_lines - .unwrap_or(config.complexity.max_function_lines); - analysis.results.iter().for_each(|f| { - if matches!(f.classification, Classification::Violation { .. }) { - push(&f.file, f.line, Dimension::Iosp, mode); - } - if !complexity_enabled { - return; - } - if let Some(c) = &f.complexity { - if complexity_predicates::would_trigger(f, c, &config.complexity, test_max_lines) { - push(&f.file, f.line, Dimension::Complexity, mode); - } - push_magic_numbers(f, c, &config.complexity, push); - } - }); -} - -/// Push complexity positions for every magic-number occurrence on the -/// function, honoring `detect_magic_numbers` and the test-function skip. -/// Operation: iteration + conditional push. -fn push_magic_numbers( - f: &crate::adapters::analyzers::iosp::FunctionAnalysis, - c: &crate::adapters::analyzers::iosp::ComplexityMetrics, - cx: &crate::config::sections::ComplexityConfig, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - if f.is_test || !cx.detect_magic_numbers { - return; - } - let mode = MatchMode::LineWindow(windows::DEFAULT); - c.magic_numbers.iter().for_each(|m| { - push( - &f.file, - m.line, - crate::findings::Dimension::Complexity, - mode, - ) - }); -} - -/// Positions for DRY findings (duplicates, dead code, fragments, -/// boilerplate, wildcards, repeated matches). -/// Operation: iterates DRY finding arrays pushing each entry. -fn collect_dry_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - use crate::findings::Dimension; - // DRY findings come from two top-level config toggles: - // `duplicates.enabled` (DRY-001 duplicates, DRY-002 dead code, - // DRY-003 fragments, DRY-004 wildcard imports, DRY-005 repeated - // match patterns) and `boilerplate.enabled` (BP-001..BP-010 - // pattern family). If both are off, suppressing DRY is a no-op - // and any qual:allow(dry) marker SHOULD surface as orphan. - if !config.duplicates.enabled && !config.boilerplate.enabled { - return; - } - // Default DRY window (duplicates, fragments, boilerplate, - // repeated matches). Dead-code findings are intentionally *not* - // included: they are not suppressible via `qual:allow(dry)` — - // exclusions happen via `qual:api`, `qual:test_helper`, - // `#[allow(dead_code)]`, or being a test function, all handled - // at the declaration-collection layer. Including them here - // would let an unrelated `qual:allow(dry)` marker falsely mask - // a stale suppression as non-orphan. - use crate::domain::findings::DryFindingKind; - let mode = MatchMode::LineWindow(windows::DEFAULT); - // Wildcards use a tighter window: `mark_wildcard_suppressions` - // only accepts the marker on the same line or immediately above. - let wildcard_mode = MatchMode::LineWindow(windows::WILDCARD); - analysis.findings.dry.iter().for_each(|f| { - let m = match f.kind { - DryFindingKind::DuplicateExact - | DryFindingKind::DuplicateSimilar - | DryFindingKind::Fragment - | DryFindingKind::Boilerplate - | DryFindingKind::RepeatedMatch => mode, - DryFindingKind::Wildcard => wildcard_mode, - // Dead-code findings are intentionally *not* included: they are - // not suppressible via `qual:allow(dry)` (see comment above). - DryFindingKind::DeadCodeUncalled | DryFindingKind::DeadCodeTestOnly => return, - }; - push(&f.common.file, f.common.line, Dimension::Dry, m); - }); -} - -/// Positions for SRP struct/module/param warnings. Struct and param -/// warnings use the 5-line SRP suppression window; module warnings -/// are file-scoped because `mark_srp_suppressions` accepts any -/// `qual:allow(srp)` in the file as a module-level suppression. -/// Operation: iterates SRP warning arrays pushing each entry. -fn collect_srp_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - use crate::domain::findings::SrpFindingKind; - use crate::findings::Dimension; - if !config.srp.enabled { - return; - } - let line_mode = MatchMode::LineWindow(windows::SRP_STRUCT_PARAM); - analysis.findings.srp.iter().for_each(|f| match f.kind { - SrpFindingKind::StructCohesion | SrpFindingKind::ParameterCount => { - push(&f.common.file, f.common.line, Dimension::Srp, line_mode); - } - SrpFindingKind::ModuleLength => { - push(&f.common.file, 1, Dimension::Srp, MatchMode::FileScope); - } - // Structural findings are handled by collect_structural_positions. - SrpFindingKind::Structural => {} - }); -} - -/// Positions for Test-Quality warnings. TQ suppressions use a 5-line -/// window (mark_tq_suppressions). -/// Operation: iterates TQ warnings pushing each entry. -fn collect_tq_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - use crate::findings::Dimension; - if !config.test_quality.enabled { - return; - } - let mode = MatchMode::LineWindow(windows::TQ); - analysis.findings.test_quality.iter().for_each(|f| { - push(&f.common.file, f.common.line, Dimension::TestQuality, mode); - }); -} - -/// Positions for Structural binary-check warnings; each carries its -/// own mapped dimension (SRP or Coupling). Structural suppressions -/// use a 5-line window (mark_structural_suppressions). -/// Operation: iterates structural warnings pushing each entry. -fn collect_structural_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - use crate::domain::findings::{CouplingFindingKind, SrpFindingKind}; - use crate::findings::Dimension; - if !config.structural.enabled { - return; - } - let mode = MatchMode::LineWindow(windows::STRUCTURAL); - analysis - .findings - .srp - .iter() - .filter(|f| matches!(f.kind, SrpFindingKind::Structural)) - .for_each(|f| push(&f.common.file, f.common.line, Dimension::Srp, mode)); - analysis - .findings - .coupling - .iter() - .filter(|f| matches!(f.kind, CouplingFindingKind::Structural)) - .for_each(|f| push(&f.common.file, f.common.line, Dimension::Coupling, mode)); -} - -/// Positions for Architecture-dimension findings. Architecture -/// suppressions are window-scoped (mark_architecture_suppressions -/// accepts a `qual:allow(architecture)` only within the marker's -/// annotation window above the finding) — orphan detection mirrors -/// that semantic so a marker for one helper is reported as stale -/// when the only architecture finding in the file lives elsewhere. -/// Operation: iterates architecture findings pushing each entry. -fn collect_architecture_positions( - analysis: &crate::report::AnalysisResult, - config: &crate::config::Config, - push: &mut F, -) where - F: FnMut(&str, usize, crate::findings::Dimension, MatchMode), -{ - use crate::findings::Dimension; - if !config.architecture.enabled { - return; - } - let mode = MatchMode::LineWindow(windows::DEFAULT); - analysis - .findings - .architecture - .iter() - .for_each(|f| push(&f.common.file, f.common.line, Dimension::Architecture, mode)); -} diff --git a/src/app/orphan_suppressions/positions.rs b/src/app/orphan_suppressions/positions.rs new file mode 100644 index 00000000..c5818e40 --- /dev/null +++ b/src/app/orphan_suppressions/positions.rs @@ -0,0 +1,421 @@ +//! Finding-position enumeration for the orphan detector. +//! +//! Walks the seven dimensions' findings (and the raw complexity metrics) and +//! emits one [`FindingPosition`] per suppressible finding-kind, tagged with +//! its suppression target and — for pinnable metrics — its value. The +//! decision layer in the parent module matches markers against these +//! positions and judges pin headroom; this module only *enumerates*. + +use std::collections::HashMap; + +use crate::adapters::analyzers::iosp::Classification; +use crate::app::suppression_windows as windows; + +use super::complexity_predicates; + +/// How a finding position is matched against a suppression marker. +/// Mirrors the actual semantics of the per-dimension `mark_*` +/// functions so an orphan marker is only reported when no real +/// suppression site would accept it. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub(super) enum MatchMode { + /// Line-proximity match: the finding's line must satisfy + /// `sup.line <= line && line - sup.line <= n`. + LineWindow(usize), + /// File-global match: any marker anywhere in the file accepts. + /// Used for SRP module warnings (line 1, file-level marker) — the + /// remaining dimensions, including Architecture, use line-window + /// matching that mirrors their `mark_*_suppressions` semantics. + FileScope, +} + +/// One finding's position for orphan matching. +#[derive(Debug, Clone, Copy)] +pub(super) struct FindingPosition { + pub(super) line: usize, + pub(super) dim: crate::findings::Dimension, + pub(super) mode: MatchMode, + /// The suppression-target name this finding is silenced by (e.g. + /// `"max_cognitive"`, `"file_length"`, `"god_struct"`, the structural + /// codes `"oi"`/`"sit"`/…), so a targeted marker only matches findings of + /// its own kind. `None` for findings with no suppressible target (e.g. + /// IOSP violations) — those are matched only by a blanket marker. + pub(super) target: Option<&'static str>, + /// The metric value for a pinnable target (cognitive count, line count, + /// parameter count, …), used by the too-loose-pin check. `None` for + /// boolean targets and untargeted positions. + pub(super) value: Option, +} + +/// Enumerate every finding's position across all seven dimensions. +/// Findings with empty `file` (global coupling / SDP / cycle reports) +/// are skipped — they have no point-location a line-scoped +/// suppression could target. Coupling is handled at the is_verifiable +/// layer, not here. +/// Integration: delegates per-dimension collection to small helpers. +pub(super) fn enumerate_finding_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, +) -> HashMap> { + let mut out: HashMap> = HashMap::new(); + let mut push = |file: &str, pos: FindingPosition| { + if !file.is_empty() { + out.entry(file.to_string()).or_default().push(pos); + } + }; + collect_iosp_complexity_positions(analysis, config, &mut push); + collect_dry_positions(analysis, config, &mut push); + collect_srp_positions(analysis, config, &mut push); + collect_tq_positions(analysis, config, &mut push); + collect_structural_positions(analysis, config, &mut push); + collect_architecture_positions(analysis, config, &mut push); + out +} + +/// Positions for IOSP violations + Complexity warnings. Reads the raw +/// complexity metrics against config thresholds (not the +/// `*_warning` flags), so a suppressed `// qual:allow(complexity)` +/// marker — which clears those flags — still registers as a matching +/// target for the orphan checker. Mirrors the same config-gated +/// predicates that `apply_extended_warnings` uses (`detect_unsafe`, +/// `detect_error_handling`, `allow_expect`, `detect_magic_numbers`, +/// `is_test` skip for length / error-handling / magic numbers), so a +/// marker is only counted as non-orphan if the corresponding check is +/// actually enabled in the active config. +/// Operation: threshold checks pushing per-flag positions. +fn collect_iosp_complexity_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, + push: &mut F, +) where + F: FnMut(&str, FindingPosition), +{ + use crate::findings::Dimension; + let mode = MatchMode::LineWindow(windows::DEFAULT); + let mk = |line, dim, target, value| FindingPosition { + line, + dim, + mode, + target, + value, + }; + let complexity_enabled = config.complexity.enabled; + let test_max_lines = config + .tests + .max_function_lines + .unwrap_or(config.complexity.max_function_lines); + analysis.results.iter().for_each(|f| { + if matches!(f.classification, Classification::Violation { .. }) { + push(&f.file, mk(f.line, Dimension::Iosp, None, None)); + } + if !complexity_enabled { + return; + } + if let Some(c) = &f.complexity { + for (target, value) in + complexity_predicates::triggered_targets(f, c, &config.complexity, test_max_lines) + { + push( + &f.file, + mk(f.line, Dimension::Complexity, Some(target), value), + ); + } + // One `magic_numbers` position per function (a boolean target), + // anchored at the *function* line — a literal deep in the body + // would otherwise fall outside a marker's window and make a valid + // suppression look stale. Honors `detect_magic_numbers` + is_test. + let cx = &config.complexity; + if cx.detect_magic_numbers && !f.is_test && !c.magic_numbers.is_empty() { + push( + &f.file, + mk(f.line, Dimension::Complexity, Some("magic_numbers"), None), + ); + } + } + }); +} + +/// Positions for DRY findings (duplicates, dead code, fragments, +/// boilerplate, wildcards, repeated matches). +/// Operation: iterates DRY finding arrays pushing each entry. +fn collect_dry_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, + push: &mut F, +) where + F: FnMut(&str, FindingPosition), +{ + use crate::findings::Dimension; + // DRY findings come from two top-level config toggles: + // `duplicates.enabled` (DRY-001 duplicates, DRY-002 dead code, + // DRY-003 fragments, DRY-004 wildcard imports, DRY-005 repeated + // match patterns) and `boilerplate.enabled` (BP-001..BP-010 + // pattern family). If both are off, suppressing DRY is a no-op + // and any qual:allow(dry) marker SHOULD surface as orphan. + if !config.duplicates.enabled && !config.boilerplate.enabled { + return; + } + // Default DRY window (duplicates, fragments, boilerplate, + // repeated matches). Dead-code findings are intentionally *not* + // included: they are not suppressible via `qual:allow(dry)` — + // exclusions happen via `qual:api`, `qual:test_helper`, + // `#[allow(dead_code)]`, or being a test function, all handled + // at the declaration-collection layer. Including them here + // would let an unrelated `qual:allow(dry)` marker falsely mask + // a stale suppression as non-orphan. + use crate::domain::findings::DryFindingKind; + let mode = MatchMode::LineWindow(windows::DEFAULT); + // Wildcards use a tighter window: `mark_wildcard_suppressions` + // only accepts the marker on the same line or immediately above. + let wildcard_mode = MatchMode::LineWindow(windows::WILDCARD); + analysis.findings.dry.iter().for_each(|f| { + let (m, target) = match f.kind { + DryFindingKind::DuplicateExact | DryFindingKind::DuplicateSimilar => { + (mode, "duplicate") + } + DryFindingKind::Fragment => (mode, "fragment"), + DryFindingKind::Boilerplate => (mode, "boilerplate"), + DryFindingKind::RepeatedMatch => (mode, "repeated_matches"), + DryFindingKind::Wildcard => (wildcard_mode, "wildcard_imports"), + // Dead-code findings are intentionally *not* included: they are + // not suppressible via `qual:allow(dry)` (see comment above). + DryFindingKind::DeadCodeUncalled | DryFindingKind::DeadCodeTestOnly => return, + }; + push( + &f.common.file, + FindingPosition { + line: f.common.line, + dim: Dimension::Dry, + mode: m, + target: Some(target), + value: None, + }, + ); + }); +} + +/// Positions for SRP struct/module/param warnings. Struct and param +/// warnings use the 5-line SRP suppression window; module warnings +/// are file-scoped because `mark_srp_suppressions` accepts any +/// `qual:allow(srp)` in the file as a module-level suppression. +/// Operation: iterates SRP warning arrays pushing each entry. +fn collect_srp_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, + push: &mut F, +) where + F: FnMut(&str, FindingPosition), +{ + use crate::findings::Dimension; + if !config.srp.enabled { + return; + } + let line_mode = MatchMode::LineWindow(windows::SRP_STRUCT_PARAM); + let max_clusters = config.srp.max_independent_clusters; + analysis.findings.srp.iter().for_each(|f| { + for (line, mode, target, value) in srp_finding_targets(f, line_mode, max_clusters) { + push( + &f.common.file, + FindingPosition { + line, + dim: Dimension::Srp, + mode, + target: Some(target), + value, + }, + ); + } + }); +} + +/// The `(line, mode, target, value)` positions a single SRP finding +/// contributes: `god_struct` (cohesion), `max_parameters` (params), or the +/// module-length targets `file_length` / `max_independent_clusters` — the +/// latter **only for the component that actually fired** (`length_score > +/// 1.0` and/or `clusters > max_clusters`), mirroring +/// `srp_suppressions::module_warning_suppressed`; a position for an inactive +/// component would let a pin that silences nothing escape stale detection or +/// mis-fire as too-loose. Structural findings are handled elsewhere. +/// Operation: kind/details dispatch producing position tuples. +fn srp_finding_targets( + f: &crate::domain::findings::SrpFinding, + line_mode: MatchMode, + max_clusters: usize, +) -> Vec<(usize, MatchMode, &'static str, Option)> { + use crate::domain::findings::{SrpFindingDetails, SrpFindingKind}; + let scope = MatchMode::FileScope; + match (&f.kind, &f.details) { + (SrpFindingKind::StructCohesion, _) => { + vec![(f.common.line, line_mode, "god_struct", None)] + } + ( + SrpFindingKind::ParameterCount, + SrpFindingDetails::ParameterCount { + parameter_count, .. + }, + ) => vec![( + f.common.line, + line_mode, + "max_parameters", + Some(*parameter_count as f64), + )], + ( + SrpFindingKind::ModuleLength, + SrpFindingDetails::ModuleLength { + production_lines, + independent_clusters, + length_score, + .. + }, + ) => [ + (*length_score > 1.0).then_some(( + 1, + scope, + "file_length", + Some(*production_lines as f64), + )), + (*independent_clusters > max_clusters).then_some(( + 1, + scope, + "max_independent_clusters", + Some(*independent_clusters as f64), + )), + ] + .into_iter() + .flatten() + .collect(), + // Structural BTC/SLM/NMS findings are handled by + // `collect_structural_positions` and contribute nothing here. + (SrpFindingKind::Structural, _) => vec![], + // kind and details are paired atomically by the projection layer; a + // mismatch is an internal bug, so fail loudly in debug rather than + // silently dropping the position (which would become a false orphan). + (kind, _) => { + debug_assert!(false, "SRP kind/details mismatch for {kind:?}"); + vec![] + } + } +} + +/// Positions for Test-Quality warnings. TQ suppressions use a 5-line +/// window (mark_tq_suppressions). +/// Operation: iterates TQ warnings pushing each entry. +fn collect_tq_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, + push: &mut F, +) where + F: FnMut(&str, FindingPosition), +{ + use crate::findings::Dimension; + if !config.test_quality.enabled { + return; + } + let mode = MatchMode::LineWindow(windows::TQ); + analysis.findings.test_quality.iter().for_each(|f| { + // `json_kind` (no_assertion/no_sut/untested/uncovered/untested_logic) + // is exactly the TQ target vocabulary, so it doubles as the target. + push( + &f.common.file, + FindingPosition { + line: f.common.line, + dim: Dimension::TestQuality, + mode, + target: Some(f.kind.meta().json_kind), + value: None, + }, + ); + }); +} + +/// Positions for Structural binary-check warnings; each carries its +/// own mapped dimension (SRP or Coupling). Structural suppressions +/// use a 5-line window (mark_structural_suppressions). +/// Operation: iterates structural warnings pushing each entry. +fn collect_structural_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, + push: &mut F, +) where + F: FnMut(&str, FindingPosition), +{ + use crate::adapters::analyzers::structural::target_name_for_code; + use crate::domain::findings::{ + CouplingFindingDetails, CouplingFindingKind, SrpFindingDetails, SrpFindingKind, + }; + use crate::findings::Dimension; + if !config.structural.enabled { + return; + } + let mode = MatchMode::LineWindow(windows::STRUCTURAL); + // Each structural binary check (BTC/SLM/NMS on the SRP side, OI/SIT/DEH/IET + // on the coupling side) is tagged with its own boolean target (the + // lowercased code), so a targeted `allow(coupling, oi)` matches its own + // finding and a stale one surfaces as an orphan. + let pos = |line, dim, code: &str| FindingPosition { + line, + dim, + mode, + target: target_name_for_code(code), + value: None, + }; + analysis.findings.srp.iter().for_each(|f| { + if let (SrpFindingKind::Structural, SrpFindingDetails::Structural { code, .. }) = + (&f.kind, &f.details) + { + push(&f.common.file, pos(f.common.line, Dimension::Srp, code)); + } + }); + analysis.findings.coupling.iter().for_each(|f| { + if let (CouplingFindingKind::Structural, CouplingFindingDetails::Structural { code, .. }) = + (&f.kind, &f.details) + { + push( + &f.common.file, + pos(f.common.line, Dimension::Coupling, code), + ); + } + }); +} + +/// Positions for Architecture-dimension findings. Architecture +/// suppressions are window-scoped (mark_architecture_suppressions +/// accepts a `qual:allow(architecture)` only within the marker's +/// annotation window above the finding) — orphan detection mirrors +/// that semantic so a marker for one helper is reported as stale +/// when the only architecture finding in the file lives elsewhere. +/// Operation: iterates architecture findings pushing each entry. +fn collect_architecture_positions( + analysis: &crate::report::AnalysisResult, + config: &crate::config::Config, + push: &mut F, +) where + F: FnMut(&str, FindingPosition), +{ + use crate::findings::Dimension; + if !config.architecture.enabled { + return; + } + let mode = MatchMode::LineWindow(windows::DEFAULT); + analysis.findings.architecture.iter().for_each(|f| { + // Resolve the finding's `architecture//…` segment to the + // canonical (`'static`) target name, so a targeted `allow( + // architecture, layer)` matches only layer findings. A family with + // no vocabulary entry leaves `target = None` (blanket-only). + let family = crate::app::architecture::arch_family(&f.common.rule_id); + let target = crate::domain::target_names(Dimension::Architecture) + .iter() + .copied() + .find(|n| *n == family); + push( + &f.common.file, + FindingPosition { + line: f.common.line, + dim: Dimension::Architecture, + mode, + target, + value: None, + }, + ); + }); +} diff --git a/src/app/pipeline.rs b/src/app/pipeline.rs index e462c94c..86948e98 100644 --- a/src/app/pipeline.rs +++ b/src/app/pipeline.rs @@ -1,4 +1,3 @@ -// qual:allow(coupling) reason: "orchestrator module — high instability is expected" use super::architecture::collect_architecture_findings; use super::secondary::{run_secondary_analysis, SecondaryContext, SecondaryResults}; use super::warnings; @@ -10,8 +9,8 @@ use crate::adapters::source::filesystem::{ use std::path::Path; -use crate::adapters::analyzers::iosp::scope::ProjectScope; use crate::adapters::analyzers::iosp::{Analyzer, FunctionAnalysis}; +use crate::adapters::shared::project_scope::ProjectScope; use crate::config::Config; use crate::report::{AnalysisResult, Summary}; @@ -61,9 +60,15 @@ fn run_primary_analysis( warnings::apply_recursive_annotations(&mut all_results, &recursive_lines); warnings::apply_leaf_reclassification(&mut all_results); let mut summary = Summary::from_results(&all_results); - apply_complexity_warnings(&mut all_results, config, &mut summary); + apply_complexity_warnings(&mut all_results, config, &mut summary, &suppression_lines); let unsafe_allow_lines = discovery::collect_unsafe_allow_lines(parsed); - apply_extended_warnings(&mut all_results, config, &mut summary, &unsafe_allow_lines); + apply_extended_warnings( + &mut all_results, + config, + &mut summary, + &unsafe_allow_lines, + &suppression_lines, + ); PrimaryResults { all_results, summary, diff --git a/src/app/projection/complexity.rs b/src/app/projection/complexity.rs index 7140297a..8c03a146 100644 --- a/src/app/projection/complexity.rs +++ b/src/app/projection/complexity.rs @@ -36,72 +36,73 @@ fn push_threshold_findings( config: &Config, ) { let metrics = f.complexity.as_ref(); - push_metric_threshold( - out, - f, - f.cognitive_warning, - ComplexityFindingKind::Cognitive, - metrics.map_or(0, |m| m.cognitive_complexity), - config.complexity.max_cognitive, - None, - ); - push_metric_threshold( - out, - f, - f.cyclomatic_warning, - ComplexityFindingKind::Cyclomatic, - metrics.map_or(0, |m| m.cyclomatic_complexity), - config.complexity.max_cyclomatic, - None, - ); - push_metric_threshold( - out, - f, - f.nesting_depth_warning, - ComplexityFindingKind::NestingDepth, - metrics.map_or(0, |m| m.max_nesting), - config.complexity.max_nesting_depth, - nesting_hotspot(metrics), - ); - push_metric_threshold( - out, - f, - f.function_length_warning, - ComplexityFindingKind::FunctionLength, - metrics.map_or(0, |m| m.function_lines), - config.complexity.max_function_lines, - None, - ); - push_metric_threshold( - out, - f, - f.unsafe_warning, - ComplexityFindingKind::Unsafe, - metrics.map_or(0, |m| m.unsafe_blocks), - 0, - None, - ); - push_metric_threshold( - out, - f, - f.error_handling_warning, - ComplexityFindingKind::ErrorHandling, - metrics.map_or(0, error_handling_count), - 0, - None, - ); + let cx = &config.complexity; + let specs = [ + ( + f.cognitive_warning, + ComplexityFindingKind::Cognitive, + metrics.map_or(0, |m| m.cognitive_complexity), + cx.max_cognitive, + None, + ), + ( + f.cyclomatic_warning, + ComplexityFindingKind::Cyclomatic, + metrics.map_or(0, |m| m.cyclomatic_complexity), + cx.max_cyclomatic, + None, + ), + ( + f.nesting_depth_warning, + ComplexityFindingKind::NestingDepth, + metrics.map_or(0, |m| m.max_nesting), + cx.max_nesting_depth, + nesting_hotspot(metrics), + ), + ( + f.function_length_warning, + ComplexityFindingKind::FunctionLength, + metrics.map_or(0, |m| m.function_lines), + cx.max_function_lines, + None, + ), + ( + f.unsafe_warning, + ComplexityFindingKind::Unsafe, + metrics.map_or(0, |m| m.unsafe_blocks), + 0, + None, + ), + ( + f.error_handling_warning, + ComplexityFindingKind::ErrorHandling, + metrics.map_or(0, error_handling_count), + 0, + None, + ), + ]; + for spec in specs { + push_metric_threshold(out, f, spec); + } } -// qual:allow(srp) reason: "single-purpose accumulator: gate-test + push the typed finding; parameters are inherent to the per-metric uniform pattern" +/// One metric's threshold-finding spec: `(flag, kind, metric_value, +/// threshold_value, hotspot)`. A tuple (not a struct) keeps this uniform +/// per-metric data table clear of BP-009 (same-type struct-update boilerplate). +type MetricThreshold = ( + bool, + ComplexityFindingKind, + usize, + usize, + Option, +); + fn push_metric_threshold( out: &mut Vec, f: &FunctionAnalysis, - flag: bool, - kind: ComplexityFindingKind, - metric_value: usize, - threshold_value: usize, - hotspot: Option, + spec: MetricThreshold, ) { + let (flag, kind, metric_value, threshold_value, hotspot) = spec; if flag { out.push(threshold(f, kind, metric_value, threshold_value, hotspot)); } diff --git a/src/app/projection/data.rs b/src/app/projection/data.rs index e50bcbcb..2d3f7d26 100644 --- a/src/app/projection/data.rs +++ b/src/app/projection/data.rs @@ -28,7 +28,7 @@ pub(crate) fn project_data( } } -// qual:allow(dry) reason: "BP-008 clone-heavy conversion is intrinsic to the legacy→typed projection. FunctionAnalysis (analyzer output) and FunctionRecord (typed domain record) need full-field copy because the layers are intentionally decoupled — domain cannot import the adapter type." +// qual:allow(dry, boilerplate) reason: "BP-008 clone-heavy conversion is intrinsic to the legacy→typed projection. FunctionAnalysis (analyzer output) and FunctionRecord (typed domain record) need full-field copy because the layers are intentionally decoupled — domain cannot import the adapter type." fn project_function(f: &FunctionAnalysis) -> FunctionRecord { FunctionRecord { name: f.name.clone(), @@ -49,7 +49,7 @@ fn project_function(f: &FunctionAnalysis) -> FunctionRecord { } } -// qual:allow(dry) reason: "BP-006 repetitive match mapping — this is the canonical enum-to-enum bridge between adapter and domain. A `From` impl would still need a 4-arm match on either side; relocating it doesn't reduce the lines, only their location." +// qual:allow(dry, boilerplate) reason: "BP-006 repetitive match mapping — this is the canonical enum-to-enum bridge between adapter and domain. A `From` impl would still need a 4-arm match on either side; relocating it doesn't reduce the lines, only their location." fn classify(c: &LegacyClassification) -> FunctionClassification { match c { LegacyClassification::Integration => FunctionClassification::Integration, diff --git a/src/app/secondary.rs b/src/app/secondary.rs index 0126ab2f..1a291d27 100644 --- a/src/app/secondary.rs +++ b/src/app/secondary.rs @@ -9,12 +9,16 @@ use crate::adapters::analyzers::iosp::FunctionAnalysis; use crate::config::Config; use crate::report::Summary; +use super::coupling_suppressions::{ + mark_coupling_blanket, mark_sdp_target_suppressions, ModuleCouplingSuppressions, +}; use super::dry_suppressions; use super::metrics::{ self, apply_parameter_warnings, build_file_call_graph, compute_coupling, compute_srp, - count_coupling_warnings, count_dry_findings, count_srp_warnings, mark_coupling_suppressions, - mark_srp_suppressions, run_dry_detection, run_guarded_detection, + count_coupling_warnings, count_dry_findings, count_srp_warnings, run_dry_detection, + run_guarded_detection, }; +use super::srp_suppressions::mark_srp_suppressions; use super::structural_metrics::{ compute_structural, count_structural_warnings, mark_structural_suppressions, }; @@ -91,14 +95,16 @@ fn run_coupling_pass( summary: &mut Summary, ) -> Option { let mut coupling = compute_coupling(ctx.parsed, ctx.config); - mark_coupling_suppressions(coupling.as_mut(), ctx.suppression_lines); - // Populate SDP violations AFTER suppressions are marked on metrics - // so each violation inherits the correct `suppressed` state at - // creation time (no separate mark pass needed). + let sups = ModuleCouplingSuppressions::build(ctx.suppression_lines); + // Blanket flag first (drives leaf handling + SDP inheritance), then + // populate SDP (inherits the blanket state), then add the targeted-sdp + // suppressions on top. + mark_coupling_blanket(coupling.as_mut(), &sups); if let Some(ca) = coupling.as_mut() { crate::adapters::analyzers::coupling::populate_sdp_violations(ca); + mark_sdp_target_suppressions(ca, &sups); } - count_coupling_warnings(coupling.as_mut(), &ctx.config.coupling, summary); + count_coupling_warnings(coupling.as_mut(), &ctx.config.coupling, &sups, summary); coupling } @@ -145,7 +151,7 @@ fn run_srp_pass( let file_call_graph = build_file_call_graph(ctx.all_results); let mut srp = compute_srp(ctx.parsed, ctx.config, &file_call_graph); apply_parameter_warnings(ctx.all_results, srp.as_mut(), &ctx.config.srp); - mark_srp_suppressions(srp.as_mut(), ctx.suppression_lines); + mark_srp_suppressions(srp.as_mut(), ctx.suppression_lines, &ctx.config.srp); count_srp_warnings(srp.as_ref(), summary); srp } diff --git a/src/app/setup.rs b/src/app/setup.rs index 47be074c..7d04e1a4 100644 --- a/src/app/setup.rs +++ b/src/app/setup.rs @@ -16,7 +16,7 @@ pub(crate) fn setup_config(cli: &Cli) -> Result { let mut config = load_config(cli)?; config.compile(); apply_cli_overrides(&mut config, cli); - validate_config_weights(&config)?; + validate_config(&config)?; Ok(config) } @@ -48,10 +48,12 @@ fn load_auto_config(path: &Path) -> Result { Config::load(path).map_err(report_config_error) } -/// Validate config settings that require cross-field checks. -/// Trivial: single delegation to validate_weights. -fn validate_config_weights(config: &Config) -> Result<(), i32> { - config::validate_weights(config).map_err(report_config_error) +/// Validate config invariants (weight sum, suppression headroom). +/// Integration: delegates to the per-section validators. +fn validate_config(config: &Config) -> Result<(), i32> { + config::validate_weights(config) + .and_then(|()| config::validate_suppression(config)) + .map_err(report_config_error) } /// Apply CLI flag overrides to config. diff --git a/src/app/srp_suppressions.rs b/src/app/srp_suppressions.rs new file mode 100644 index 00000000..f9ed9af8 --- /dev/null +++ b/src/app/srp_suppressions.rs @@ -0,0 +1,78 @@ +//! Target-aware suppression marking for the SRP dimension. +//! +//! A blanket `// qual:allow(srp)` silences every srp finding; a targeted +//! `allow(srp, [=N])` silences exactly one finding-kind: `god_struct` +//! (struct), `file_length` / `max_independent_clusters` (module), or +//! `max_parameters` (param). Metric targets honour their pin value, so a +//! `file_length` pin can never hide a co-occurring cohesion finding. + +use crate::findings::Suppression; + +/// Mark SRP warnings as suppressed based on `// qual:allow(srp[, target])` +/// comments. +/// Operation: iteration + suppression matching via closures (no own calls). +pub(crate) fn mark_srp_suppressions( + srp: Option<&mut crate::adapters::analyzers::srp::SrpAnalysis>, + suppression_lines: &std::collections::HashMap>, + srp_config: &crate::config::sections::SrpConfig, +) { + let Some(srp) = srp else { return }; + + // Struct/param windows match the orphan detector, see + // `app::suppression_windows::SRP_STRUCT_PARAM`. + const WINDOW: usize = crate::app::suppression_windows::SRP_STRUCT_PARAM; + let srp_dim = crate::findings::Dimension::Srp; + let max_clusters = srp_config.max_independent_clusters; + + srp.struct_warnings.iter_mut().for_each(|w| { + if let Some(sups) = suppression_lines.get(&w.file) { + w.suppressed = sups.iter().any(|sup| { + let in_window = sup.line <= w.line && w.line - sup.line <= WINDOW; + in_window && sup.suppresses(srp_dim, "god_struct", None) + }); + } + }); + + srp.module_warnings.iter_mut().for_each(|w| { + if let Some(sups) = suppression_lines.get(&w.file) { + w.suppressed = module_warning_suppressed(w, sups, srp_dim, max_clusters); + } + }); + + srp.param_warnings.iter_mut().for_each(|w| { + if let Some(sups) = suppression_lines.get(&w.file) { + let count = Some(w.parameter_count as f64); + w.suppressed = sups.iter().any(|sup| { + let in_window = sup.line <= w.line && w.line - sup.line <= WINDOW; + in_window && sup.suppresses(srp_dim, "max_parameters", count) + }); + } + }); +} + +/// Decide whether a module SRP warning is fully suppressed. The warning can +/// have a length component (`production_lines > threshold`, recoverable from +/// `length_score > 1.0`) and/or a cohesion component (`clusters > max`); each +/// active component must be covered by a matching suppression, so a +/// `file_length` pin can never hide a co-occurring cohesion finding. +/// Operation: per-component coverage check via closures. +fn module_warning_suppressed( + w: &crate::adapters::analyzers::srp::ModuleSrpWarning, + sups: &[Suppression], + srp_dim: crate::findings::Dimension, + max_clusters: usize, +) -> bool { + let has_length = w.length_score > 1.0; + let has_cluster = w.independent_clusters > max_clusters; + let lines = Some(w.production_lines as f64); + let clusters = Some(w.independent_clusters as f64); + let length_ok = !has_length + || sups + .iter() + .any(|s| s.suppresses(srp_dim, "file_length", lines)); + let cluster_ok = !has_cluster + || sups + .iter() + .any(|s| s.suppresses(srp_dim, "max_independent_clusters", clusters)); + length_ok && cluster_ok +} diff --git a/src/app/structural_metrics.rs b/src/app/structural_metrics.rs index 615b1749..46af1257 100644 --- a/src/app/structural_metrics.rs +++ b/src/app/structural_metrics.rs @@ -20,6 +20,16 @@ pub(super) fn compute_structural( /// Mark structural warnings as suppressed based on suppression comments. /// Operation: iteration + suppression matching, no own calls. /// Uses the warning's dimension (SRP or Coupling) to match suppressions. +/// +/// Each structural check has its own boolean suppression target named by its +/// lowercased code (`oi`/`sit`/`deh`/`iet` on the coupling side, +/// `btc`/`slm`/`nms` on the SRP side), so a genuinely-unfixable finding (an +/// orphan-rule-forced impl, a single-impl API boundary, a `downcast` plugin +/// seam) can be silenced by name: `// qual:allow(coupling, oi) reason: "…"`. +/// A targeted marker silences only its own kind — `allow(coupling, sdp)` does +/// not touch an `OI` finding — and a metric coupling pin never silences a +/// structural one (its `value` is `None`). This goes through `suppresses` so +/// the marking and orphan-detection layers stay in lockstep. pub(super) fn mark_structural_suppressions( structural: Option<&mut crate::adapters::analyzers::structural::StructuralAnalysis>, suppression_lines: &std::collections::HashMap>, @@ -32,7 +42,7 @@ pub(super) fn mark_structural_suppressions( if let Some(sups) = suppression_lines.get(&w.file) { w.suppressed = sups.iter().any(|sup| { let in_window = sup.line <= w.line && w.line - sup.line <= window; - in_window && sup.covers(w.dimension) + in_window && sup.suppresses(w.dimension, w.kind.target_name(), None) }); } }); diff --git a/src/app/tests/architecture.rs b/src/app/tests/architecture.rs index d955ecff..39613438 100644 --- a/src/app/tests/architecture.rs +++ b/src/app/tests/architecture.rs @@ -25,6 +25,7 @@ fn marker(line: usize, dim: Dimension) -> HashMap HashMap> { + [( + "src/x.rs".to_string(), + vec![crate::findings::Suppression { + line, + dimensions: vec![Dimension::Architecture], + reason: Some("r".to_string()), + target: Some(crate::domain::SuppressionTarget::Boolean { + name: target.to_string(), + }), + }], + )] + .into() +} + +fn arch_finding_with(line: usize, rule_id: &str) -> Finding { + Finding { + rule_id: rule_id.into(), + ..arch_finding(line, false) + } +} + +#[test] +fn architecture_targeted_marker_matches_only_its_family() { + // The finding family is `layer` (rule id `architecture/layer`). + let mut layer = vec![arch_finding(6, false)]; + mark_architecture_suppressions(&mut layer, &targeted_marker(5, "layer")); + assert!(layer[0].suppressed, "layer target silences a layer finding"); + + let mut layer2 = vec![arch_finding(6, false)]; + mark_architecture_suppressions(&mut layer2, &targeted_marker(5, "forbidden")); + assert!( + !layer2[0].suppressed, + "a forbidden target must not silence a layer finding" + ); +} + +#[test] +fn architecture_family_is_first_segment_after_prefix() { + // `architecture/layer/unmatched` still has family `layer`. + let mut sub = vec![arch_finding_with(6, "architecture/layer/unmatched")]; + mark_architecture_suppressions(&mut sub, &targeted_marker(5, "layer")); + assert!(sub[0].suppressed, "sub-rule inherits the `layer` family"); +} + #[test] fn count_architecture_warnings_excludes_suppressed() { // Two active + one suppressed → 2. The asymmetric counts pin the diff --git a/src/app/tests/coupling_targeted.rs b/src/app/tests/coupling_targeted.rs new file mode 100644 index 00000000..3548f7ba --- /dev/null +++ b/src/app/tests/coupling_targeted.rs @@ -0,0 +1,116 @@ +//! Per-kind, module-global coupling suppression: `allow(coupling, [=N])` +//! silences one finding-kind (metric pins honour their value), leaving the +//! other coupling findings of the module active. Blanket `allow(coupling)` +//! silences everything for the module. +use crate::adapters::analyzers::coupling::sdp::SdpViolation; +use crate::adapters::analyzers::coupling::{CouplingAnalysis, CouplingMetrics, ModuleGraph}; +use crate::app::coupling_suppressions::{mark_sdp_target_suppressions, ModuleCouplingSuppressions}; +use crate::app::metrics::count_coupling_warnings; +use crate::config::sections::CouplingConfig; +use crate::domain::SuppressionTarget; +use crate::findings::{Dimension, Suppression}; +use crate::report::Summary; +use std::collections::HashMap; + +/// One `foo` module that breaches instability (afferent>0, I=0.83 > 0.8). +fn analysis() -> CouplingAnalysis { + CouplingAnalysis { + metrics: vec![CouplingMetrics { + module_name: "foo".to_string(), + afferent: 1, + efferent: 5, + instability: 0.83, + incoming: vec![], + outgoing: vec![], + suppressed: false, + warning: false, + }], + cycles: vec![], + sdp_violations: vec![], + graph: ModuleGraph::default(), + } +} + +fn sups(target: Option) -> ModuleCouplingSuppressions { + let mut sl = HashMap::new(); + sl.insert( + "foo.rs".to_string(), + vec![Suppression { + line: 1, + dimensions: vec![Dimension::Coupling], + reason: Some("r".to_string()), + target, + }], + ); + ModuleCouplingSuppressions::build(&sl) +} + +fn pin(name: &str, value: Option) -> ModuleCouplingSuppressions { + let target = match value { + Some(pin) => SuppressionTarget::Metric { + name: name.to_string(), + pin, + }, + None => SuppressionTarget::Boolean { + name: name.to_string(), + }, + }; + sups(Some(target)) +} + +fn warnings(s: &ModuleCouplingSuppressions) -> usize { + let mut a = analysis(); + let mut summary = Summary::from_results(&[]); + count_coupling_warnings(Some(&mut a), &CouplingConfig::default(), s, &mut summary); + summary.coupling_warnings +} + +#[test] +fn instability_pin_suppresses_within_and_refires() { + assert_eq!( + warnings(&pin("max_instability", Some(0.9))), + 0, + "0.83 <= 0.9" + ); + assert_eq!( + warnings(&pin("max_instability", Some(0.82))), + 1, + "0.83 > 0.82 → re-fires" + ); +} + +#[test] +fn wrong_metric_target_leaves_instability_firing() { + assert_eq!( + warnings(&pin("max_fan_out", Some(99.0))), + 1, + "a fan_out pin must not silence the instability warning" + ); +} + +#[test] +fn blanket_allow_coupling_suppresses_module() { + assert_eq!(warnings(&sups(None)), 0, "blanket silences the module"); +} + +#[test] +fn sdp_target_suppresses_sdp_not_metric() { + let mut a = analysis(); + a.sdp_violations = vec![SdpViolation { + from_module: "foo".to_string(), + to_module: "bar".to_string(), + from_instability: 0.83, + to_instability: 0.1, + suppressed: false, + }]; + let s = pin("sdp", None); + mark_sdp_target_suppressions(&mut a, &s); + assert!(a.sdp_violations[0].suppressed, "sdp target silences SDP"); + // The metric warning is untouched by an sdp target. + let mut summary = Summary::from_results(&[]); + count_coupling_warnings(Some(&mut a), &CouplingConfig::default(), &s, &mut summary); + assert_eq!( + summary.coupling_warnings, 1, + "sdp target leaves instability" + ); +} diff --git a/src/app/tests/metrics/counters.rs b/src/app/tests/metrics/counters.rs index 12d2d789..91607638 100644 --- a/src/app/tests/metrics/counters.rs +++ b/src/app/tests/metrics/counters.rs @@ -4,6 +4,7 @@ //! asserted total. use super::*; use crate::adapters::analyzers::coupling::{CouplingAnalysis, CouplingMetrics, ModuleGraph}; +use crate::app::coupling_suppressions::ModuleCouplingSuppressions; use crate::config::sections::CouplingConfig; fn coupling_config() -> CouplingConfig { @@ -37,7 +38,12 @@ fn coupling_warnings(metrics: Vec) -> usize { }; let config = coupling_config(); let mut summary = Summary::from_results(&[]); - count_coupling_warnings(Some(&mut analysis), &config, &mut summary); + count_coupling_warnings( + Some(&mut analysis), + &config, + &ModuleCouplingSuppressions::build(&std::collections::HashMap::new()), + &mut summary, + ); summary.coupling_warnings } @@ -149,6 +155,7 @@ fn sups_at(line: usize, dim: Dimension) -> HashMap> { line, dimensions: vec![dim], reason: None, + target: None, }], )] .into() diff --git a/src/app/tests/metrics/mod.rs b/src/app/tests/metrics/mod.rs index 61a0a2a4..236115be 100644 --- a/src/app/tests/metrics/mod.rs +++ b/src/app/tests/metrics/mod.rs @@ -17,6 +17,7 @@ pub(super) use crate::adapters::analyzers::iosp::{ }; pub(super) use crate::app::dry_suppressions::{mark_dry_suppressions, mark_inverse_suppressions}; pub(super) use crate::app::metrics::*; +pub(super) use crate::app::srp_suppressions::mark_srp_suppressions; pub(super) use crate::config::sections::SrpConfig; pub(super) use crate::findings::Suppression; pub(super) use crate::report::Summary; @@ -25,6 +26,7 @@ mod counters; mod dry_detection; mod param_warnings; mod srp_suppression; +mod srp_targeted; mod suppression; pub(super) fn make_func(name: &str, param_count: usize, trait_impl: bool) -> FunctionAnalysis { @@ -72,6 +74,7 @@ pub(super) fn dry_suppression_at( line, dimensions: vec![crate::findings::Dimension::Dry], reason: None, + target: None, }], )] .into() diff --git a/src/app/tests/metrics/srp_suppression.rs b/src/app/tests/metrics/srp_suppression.rs index b10fcbec..47de544a 100644 --- a/src/app/tests/metrics/srp_suppression.rs +++ b/src/app/tests/metrics/srp_suppression.rs @@ -14,6 +14,7 @@ fn srp_sups(line: usize, dim: Dimension) -> HashMap> { line, dimensions: vec![dim], reason: None, + target: None, }], )] .into() @@ -37,7 +38,11 @@ fn struct_warning(line: usize) -> SrpWarning { fn srp_struct_suppressed(w_line: usize, sup_line: usize, dim: Dimension) -> bool { let mut srp = make_srp(); srp.struct_warnings.push(struct_warning(w_line)); - mark_srp_suppressions(Some(&mut srp), &srp_sups(sup_line, dim)); + mark_srp_suppressions( + Some(&mut srp), + &srp_sups(sup_line, dim), + &crate::config::sections::SrpConfig::default(), + ); srp.struct_warnings[0].suppressed } @@ -50,7 +55,11 @@ fn srp_param_suppressed(w_line: usize, sup_line: usize, dim: Dimension) -> bool parameter_count: 6, suppressed: false, }); - mark_srp_suppressions(Some(&mut srp), &srp_sups(sup_line, dim)); + mark_srp_suppressions( + Some(&mut srp), + &srp_sups(sup_line, dim), + &crate::config::sections::SrpConfig::default(), + ); srp.param_warnings[0].suppressed } diff --git a/src/app/tests/metrics/srp_targeted.rs b/src/app/tests/metrics/srp_targeted.rs new file mode 100644 index 00000000..91085bc5 --- /dev/null +++ b/src/app/tests/metrics/srp_targeted.rs @@ -0,0 +1,99 @@ +//! Target-aware SRP module suppression: a `file_length` pin silences the +//! length warning only while `production_lines <= pin` (re-firing above), and +//! never hides a co-occurring cohesion finding. Blanket `allow(srp)` still +//! silences everything. +use super::*; +use crate::adapters::analyzers::srp::{ModuleSrpWarning, SrpAnalysis}; +use crate::domain::SuppressionTarget; +use crate::findings::Dimension; +use std::collections::HashMap; + +fn module_warning(production_lines: usize, length_score: f64, clusters: usize) -> ModuleSrpWarning { + ModuleSrpWarning { + module: "m.rs".to_string(), + file: "m.rs".to_string(), + production_lines, + length_score, + independent_clusters: clusters, + cluster_names: vec![], + suppressed: false, + } +} + +fn sups(target: Option) -> HashMap> { + [( + "m.rs".to_string(), + vec![Suppression { + line: 1, + dimensions: vec![Dimension::Srp], + reason: Some("r".to_string()), + target, + }], + )] + .into() +} + +fn pin(name: &str, pin: Option) -> HashMap> { + let target = match pin { + Some(pin) => SuppressionTarget::Metric { + name: name.to_string(), + pin, + }, + None => SuppressionTarget::Boolean { + name: name.to_string(), + }, + }; + sups(Some(target)) +} + +fn suppressed(w: ModuleSrpWarning, s: &HashMap>) -> bool { + let mut srp = SrpAnalysis { + struct_warnings: vec![], + module_warnings: vec![w], + param_warnings: vec![], + }; + mark_srp_suppressions(Some(&mut srp), s, &SrpConfig::default()); + srp.module_warnings[0].suppressed +} + +#[test] +fn file_length_pin_suppresses_within_pin() { + // 350 lines (threshold 300 → score 1.167), pin 400 → 350 <= 400 → silenced. + let w = module_warning(350, 350.0 / 300.0, 0); + assert!(suppressed(w, &pin("file_length", Some(400.0)))); +} + +#[test] +fn file_length_pin_refires_above_pin() { + // 450 lines, pin 400 → 450 > 400 → the warning re-fires (not suppressed). + let w = module_warning(450, 450.0 / 300.0, 0); + assert!(!suppressed(w, &pin("file_length", Some(400.0)))); +} + +#[test] +fn file_length_pin_does_not_hide_cohesion() { + // Length fires (350 lines) AND cohesion fires (5 clusters > max 2). A + // file_length pin covers only the length component, so the warning stays. + let w = module_warning(350, 350.0 / 300.0, 5); + assert!(!suppressed(w, &pin("file_length", Some(400.0)))); +} + +#[test] +fn blanket_allow_srp_suppresses_module() { + let w = module_warning(350, 350.0 / 300.0, 5); + assert!(suppressed(w, &sups(None))); +} + +#[test] +fn cluster_pin_suppresses_cohesion_only_warning() { + // Length under threshold (score 0.5), 3 clusters > max 2, pin clusters=4. + let w = module_warning(150, 0.5, 3); + assert!(suppressed(w, &pin("max_independent_clusters", Some(4.0)))); +} + +#[test] +fn wrong_target_does_not_suppress() { + // A max_parameters pin must not touch a module length warning. + let w = module_warning(450, 450.0 / 300.0, 0); + assert!(!suppressed(w, &pin("max_parameters", Some(999.0)))); +} diff --git a/src/app/tests/metrics/suppression.rs b/src/app/tests/metrics/suppression.rs index b15be876..4076a50a 100644 --- a/src/app/tests/metrics/suppression.rs +++ b/src/app/tests/metrics/suppression.rs @@ -54,6 +54,53 @@ fn dry_suppression_marks_every_group_kind() { assert!(bp.suppressed, "boilerplate find suppressed"); } +#[test] +fn dry_targeted_suppression_is_per_kind() { + use crate::domain::SuppressionTarget; + let targeted = |target: &str| -> std::collections::HashMap> { + [( + "test.rs".to_string(), + vec![Suppression { + line: 4, + dimensions: vec![crate::findings::Dimension::Dry], + reason: Some("r".to_string()), + target: Some(SuppressionTarget::Boolean { + name: target.to_string(), + }), + }], + )] + .into() + }; + // allow(dry, duplicate) silences ONLY the duplicate group. + let (mut dup, mut rep, mut frag, mut bp) = dry_group_fixtures(); + let dup_only = targeted("duplicate"); + mark_dry_suppressions(std::slice::from_mut(&mut dup), &dup_only); + mark_dry_suppressions(std::slice::from_mut(&mut rep), &dup_only); + mark_dry_suppressions(std::slice::from_mut(&mut frag), &dup_only); + mark_dry_suppressions(std::slice::from_mut(&mut bp), &dup_only); + assert!( + dup.suppressed, + "duplicate silenced by allow(dry, duplicate)" + ); + assert!(!rep.suppressed, "repeated-match must NOT be silenced"); + assert!(!frag.suppressed, "fragment must NOT be silenced"); + assert!(!bp.suppressed, "boilerplate must NOT be silenced"); + + // A different target (fragment) leaves the duplicate group active. + let (mut dup2, _, mut frag2, _) = dry_group_fixtures(); + let frag_only = targeted("fragment"); + mark_dry_suppressions(std::slice::from_mut(&mut dup2), &frag_only); + mark_dry_suppressions(std::slice::from_mut(&mut frag2), &frag_only); + assert!( + !dup2.suppressed, + "duplicate NOT silenced by fragment target" + ); + assert!( + frag2.suppressed, + "fragment silenced by allow(dry, fragment)" + ); +} + #[test] fn test_duplicate_without_suppression_not_marked() { use crate::adapters::analyzers::dry::functions::{ @@ -150,6 +197,7 @@ fn dry_suppression_must_cover_the_dry_dimension() { line: 4, dimensions: vec![crate::findings::Dimension::Complexity], reason: None, + target: None, }], )] .into(); diff --git a/src/app/tests/mod.rs b/src/app/tests/mod.rs index e77816b8..0fd2aa5d 100644 --- a/src/app/tests/mod.rs +++ b/src/app/tests/mod.rs @@ -1,5 +1,6 @@ mod analyze_codebase; mod architecture; +mod coupling_targeted; mod gates; mod metrics; mod pipeline; @@ -23,6 +24,7 @@ pub(super) fn one_suppression( line, dimensions: vec![dim], reason: None, + target: None, }], )] .into() diff --git a/src/app/tests/pipeline.rs b/src/app/tests/pipeline.rs index 766fa15d..2a65f3b3 100644 --- a/src/app/tests/pipeline.rs +++ b/src/app/tests/pipeline.rs @@ -2,7 +2,8 @@ use crate::adapters::analyzers::iosp::Classification; use crate::adapters::source::filesystem::{ collect_filtered_files, collect_rust_files, collect_suppression_lines, read_and_parse_files, }; -use crate::app::metrics::{count_coupling_warnings, mark_coupling_suppressions}; +use crate::app::coupling_suppressions::{mark_coupling_blanket, ModuleCouplingSuppressions}; +use crate::app::metrics::count_coupling_warnings; use crate::app::pipeline::{analyze_and_output, output_results, run_analysis}; use crate::app::warnings::{check_suppression_ratio, count_all_suppressions}; use crate::config::Config; @@ -173,7 +174,7 @@ fn test_collect_suppression_no_match() { #[test] fn test_collect_suppression_multiple() { - let source = "// qual:allow(srp)\nfn foo() {}\n// qual:allow(iosp)\nfn bar() {}"; + let source = "// qual:allow(srp, god_struct) reason: \"x\"\nfn foo() {}\n// qual:allow(iosp)\nfn bar() {}"; let syntax = syn::parse_file(source).unwrap(); let parsed = vec![("test.rs".to_string(), source.to_string(), syntax)]; let result = collect_suppression_lines(&parsed); @@ -312,11 +313,15 @@ fn test_mark_coupling_suppressions_marks_module() { line: 1, dimensions: vec![crate::findings::Dimension::Coupling], reason: Some("orchestrator module".to_string()), + target: None, }; let mut suppression_lines = std::collections::HashMap::new(); suppression_lines.insert("pipeline.rs".to_string(), vec![sup]); - mark_coupling_suppressions(Some(&mut analysis), &suppression_lines); + mark_coupling_blanket( + Some(&mut analysis), + &ModuleCouplingSuppressions::build(&suppression_lines), + ); assert!(analysis.metrics[0].suppressed); // pipeline assert!(!analysis.metrics[1].suppressed); // config @@ -333,9 +338,13 @@ fn coupling_metric0_suppressed_by(dims: Vec) -> bool line: 1, dimensions: dims, reason: None, + target: None, }], ); - mark_coupling_suppressions(Some(&mut analysis), &suppression_lines); + mark_coupling_blanket( + Some(&mut analysis), + &ModuleCouplingSuppressions::build(&suppression_lines), + ); analysis.metrics[0].suppressed } @@ -382,12 +391,16 @@ fn test_mark_coupling_suppressions_submodule_file() { line: 1, dimensions: vec![crate::findings::Dimension::Coupling], reason: None, + target: None, }; let mut suppression_lines = std::collections::HashMap::new(); // Suppression in a submodule file maps to the top-level module suppression_lines.insert("analyzer/visitor.rs".to_string(), vec![sup]); - mark_coupling_suppressions(Some(&mut analysis), &suppression_lines); + mark_coupling_blanket( + Some(&mut analysis), + &ModuleCouplingSuppressions::build(&suppression_lines), + ); assert!(analysis.metrics[0].suppressed); // analyzer suppressed } @@ -396,18 +409,33 @@ fn test_mark_coupling_suppressions_submodule_file() { fn test_mark_coupling_suppressions_none_analysis() { let suppression_lines = std::collections::HashMap::new(); // Should not panic - mark_coupling_suppressions(None, &suppression_lines); + mark_coupling_blanket(None, &ModuleCouplingSuppressions::build(&suppression_lines)); } #[test] fn test_count_coupling_warnings_skips_suppressed() { let mut analysis = make_coupling_analysis(); - analysis.metrics[0].suppressed = true; // pipeline suppressed + // A blanket allow(coupling) in a file of the `pipeline` module silences it. + let mut suppression_lines = std::collections::HashMap::new(); + suppression_lines.insert( + "pipeline.rs".to_string(), + vec![Suppression { + line: 1, + dimensions: vec![crate::findings::Dimension::Coupling], + reason: Some("orchestrator".to_string()), + target: None, + }], + ); let config = crate::config::sections::CouplingConfig::default(); let mut summary = Summary::from_results(&[]); - count_coupling_warnings(Some(&mut analysis), &config, &mut summary); + count_coupling_warnings( + Some(&mut analysis), + &config, + &ModuleCouplingSuppressions::build(&suppression_lines), + &mut summary, + ); assert_eq!(summary.coupling_warnings, 0); // pipeline warning suppressed } @@ -419,7 +447,12 @@ fn test_count_coupling_warnings_counts_unsuppressed() { let config = crate::config::sections::CouplingConfig::default(); let mut summary = Summary::from_results(&[]); - count_coupling_warnings(Some(&mut analysis), &config, &mut summary); + count_coupling_warnings( + Some(&mut analysis), + &config, + &ModuleCouplingSuppressions::build(&std::collections::HashMap::new()), + &mut summary, + ); assert_eq!(summary.coupling_warnings, 1); // pipeline exceeds threshold } @@ -445,7 +478,12 @@ fn test_count_coupling_warnings_leaf_module_excluded() { let config = crate::config::sections::CouplingConfig::default(); let mut summary = Summary::from_results(&[]); - count_coupling_warnings(Some(&mut analysis), &config, &mut summary); + count_coupling_warnings( + Some(&mut analysis), + &config, + &ModuleCouplingSuppressions::build(&std::collections::HashMap::new()), + &mut summary, + ); assert_eq!(summary.coupling_warnings, 0); // leaf excluded } @@ -494,11 +532,13 @@ fn test_count_all_suppressions_qual_only() { line: 1, dimensions: vec![], reason: None, + target: None, }, crate::findings::Suppression { line: 3, dimensions: vec![crate::findings::Dimension::Iosp], reason: None, + target: None, }, ], ); @@ -526,6 +566,7 @@ fn test_count_all_suppressions_both_types() { line: 3, dimensions: vec![crate::findings::Dimension::Iosp], reason: None, + target: None, }], ); assert_eq!(count_all_suppressions(&supp, &parsed), 2); diff --git a/src/app/tests/structural_metrics.rs b/src/app/tests/structural_metrics.rs index 1eb8403b..33cc329f 100644 --- a/src/app/tests/structural_metrics.rs +++ b/src/app/tests/structural_metrics.rs @@ -51,6 +51,78 @@ fn structural_suppression_window_and_dimension() { assert!(!struct_suppressed(2, 5, s, s)); } +#[test] +fn unrelated_targeted_marker_does_not_suppress_structural_warning() { + // A targeted marker silences only its OWN target. The warning is an SLM + // finding (target `slm`); an `allow(coupling, sdp)` marker — valid, covering + // the dimension, in-window — names a different target, so it must not + // silence it. (Before the fix, the dimension-only `covers()` check let any + // targeted marker hide structural findings.) + let mut analysis = StructuralAnalysis { + warnings: vec![warning(5, Dimension::Coupling, false)], + }; + let sups = [( + "test.rs".to_string(), + vec![crate::findings::Suppression { + line: 5, + dimensions: vec![Dimension::Coupling], + reason: Some("r".into()), + target: Some(crate::domain::SuppressionTarget::Boolean { name: "sdp".into() }), + }], + )] + .into(); + mark_structural_suppressions(Some(&mut analysis), &sups); + assert!( + !analysis.warnings[0].suppressed, + "a targeted coupling marker for a different target must not hide a structural finding" + ); +} + +fn structural_target( + line: usize, + dim: Dimension, + target: &str, +) -> std::collections::HashMap> { + [( + "test.rs".to_string(), + vec![crate::findings::Suppression { + line, + dimensions: vec![dim], + reason: Some("r".into()), + target: Some(crate::domain::SuppressionTarget::Boolean { + name: target.into(), + }), + }], + )] + .into() +} + +#[test] +fn structural_target_suppresses_its_own_kind() { + // `warning(..)` is an SLM finding → `allow(srp, slm)` silences it. + let mut a = StructuralAnalysis { + warnings: vec![warning(5, Dimension::Srp, false)], + }; + mark_structural_suppressions(Some(&mut a), &structural_target(5, Dimension::Srp, "slm")); + assert!( + a.warnings[0].suppressed, + "allow(srp, slm) must silence an SLM finding" + ); +} + +#[test] +fn structural_target_does_not_suppress_a_different_kind() { + // `allow(srp, btc)` must NOT silence an SLM finding. + let mut a = StructuralAnalysis { + warnings: vec![warning(5, Dimension::Srp, false)], + }; + mark_structural_suppressions(Some(&mut a), &structural_target(5, Dimension::Srp, "btc")); + assert!( + !a.warnings[0].suppressed, + "allow(srp, btc) must not silence an SLM finding" + ); +} + #[test] fn count_structural_warnings_splits_by_dimension() { // SRP: 2 unsuppressed + 1 suppressed → 2. Coupling: 1 unsuppressed + 1 diff --git a/src/app/tests/tq_metrics.rs b/src/app/tests/tq_metrics.rs index 93c22abb..ce3999c4 100644 --- a/src/app/tests/tq_metrics.rs +++ b/src/app/tests/tq_metrics.rs @@ -34,6 +34,35 @@ fn tq_suppression_window_and_dimension() { assert!(!tq_suppressed(2, 5, t)); // below the warning } +fn tq_targeted(w_line: usize, kind: TqWarningKind, target: &str) -> bool { + let mut tq = TqAnalysis { + warnings: vec![warning(w_line, kind, false)], + }; + let sups: std::collections::HashMap> = [( + "test.rs".to_string(), + vec![crate::findings::Suppression { + line: w_line, + dimensions: vec![Dimension::TestQuality], + reason: Some("r".to_string()), + target: Some(crate::domain::SuppressionTarget::Boolean { + name: target.to_string(), + }), + }], + )] + .into(); + mark_tq_suppressions(Some(&mut tq), &sups); + tq.warnings[0].suppressed +} + +#[test] +fn tq_targeted_suppression_is_per_kind() { + // A no_assertion target silences a NoAssertion warning, but not another kind. + assert!(tq_targeted(5, TqWarningKind::NoAssertion, "no_assertion")); + assert!(!tq_targeted(5, TqWarningKind::NoAssertion, "untested")); + // An untested target silences an Untested warning. + assert!(tq_targeted(5, TqWarningKind::Untested, "untested")); +} + #[test] fn count_tq_warnings_splits_by_kind() { // One unsuppressed warning of each kind → each summary counter is 1. Pins diff --git a/src/app/tests/warnings/complexity_flags.rs b/src/app/tests/warnings/complexity_flags.rs index 52aa48c8..3d32f03b 100644 --- a/src/app/tests/warnings/complexity_flags.rs +++ b/src/app/tests/warnings/complexity_flags.rs @@ -15,7 +15,12 @@ fn cx_config(max_cognitive: usize, max_cyclomatic: usize) -> Config { fn apply_cx(metrics: ComplexityMetrics, config: &Config) -> (bool, bool, usize, usize) { let mut fa = make_func_with_metrics(metrics); let mut summary = Summary::from_results(&[]); - apply_complexity_warnings(std::slice::from_mut(&mut fa), config, &mut summary); + apply_complexity_warnings( + std::slice::from_mut(&mut fa), + config, + &mut summary, + &std::collections::HashMap::new(), + ); ( fa.cognitive_warning, fa.cyclomatic_warning, diff --git a/src/app/tests/warnings/complexity_targeted.rs b/src/app/tests/warnings/complexity_targeted.rs new file mode 100644 index 00000000..4db7790c --- /dev/null +++ b/src/app/tests/warnings/complexity_targeted.rs @@ -0,0 +1,113 @@ +//! Per-kind targeted complexity suppression: `allow(complexity, [=N])` +//! silences exactly one kind (metric pins honour their value), leaving the +//! other complexity findings on the same function active. +use super::*; +use crate::domain::SuppressionTarget; +use crate::findings::{Dimension, Suppression}; + +fn targeted(name: &str, pin: Option) -> HashMap> { + [( + "test.rs".to_string(), + vec![Suppression { + line: 1, + dimensions: vec![Dimension::Complexity], + reason: Some("r".to_string()), + target: Some(target_of(name, pin)), + }], + )] + .into() +} + +/// Build a metric or boolean target from an optional pin (test helper). +fn target_of(name: &str, pin: Option) -> SuppressionTarget { + match pin { + Some(pin) => SuppressionTarget::Metric { + name: name.to_string(), + pin, + }, + None => SuppressionTarget::Boolean { + name: name.to_string(), + }, + } +} + +fn run_extended( + m: ComplexityMetrics, + sups: &HashMap>, +) -> FunctionAnalysis { + let mut results = vec![make_func_with_metrics(m)]; + let mut summary = Summary::from_results(&[]); + apply_extended_warnings( + &mut results, + &Config::default(), + &mut summary, + &HashMap::new(), + sups, + ); + results.into_iter().next().unwrap() +} + +fn run_complexity( + m: ComplexityMetrics, + sups: &HashMap>, +) -> FunctionAnalysis { + let mut results = vec![make_func_with_metrics(m)]; + let mut summary = Summary::from_results(&[]); + apply_complexity_warnings(&mut results, &Config::default(), &mut summary, sups); + results.into_iter().next().unwrap() +} + +#[test] +fn unsafe_target_suppresses_unsafe_not_nesting() { + // unsafe is silenced by its boolean target; nesting on the same fn stays. + let m = ComplexityMetrics { + unsafe_blocks: 1, + max_nesting: 5, + ..Default::default() + }; + let fa = run_extended(m, &targeted("unsafe", None)); + assert!(!fa.unsafe_warning, "unsafe should be silenced"); + assert!(fa.nesting_depth_warning, "nesting must still fire"); +} + +#[test] +fn cognitive_pin_suppresses_within_and_refires_above() { + // Default max_cognitive = 15; pin at 18. + let within = run_complexity( + ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }, + &targeted("max_cognitive", Some(18.0)), + ); + assert!(!within.cognitive_warning, "18 <= pin 18 → silenced"); + let above = run_complexity( + ComplexityMetrics { + cognitive_complexity: 19, + ..Default::default() + }, + &targeted("max_cognitive", Some(18.0)), + ); + assert!(above.cognitive_warning, "19 > pin 18 → re-fires"); +} + +#[test] +fn length_pin_suppresses_within() { + let m = ComplexityMetrics { + function_lines: 90, + ..Default::default() + }; + let fa = run_extended(m, &targeted("max_function_lines", Some(100.0))); + assert!(!fa.function_length_warning, "90 <= pin 100 → silenced"); +} + +#[test] +fn wrong_target_does_not_suppress() { + // A max_cognitive pin must not touch an unsafe finding. + let m = ComplexityMetrics { + unsafe_blocks: 1, + ..Default::default() + }; + let fa = run_extended(m, &targeted("max_cognitive", Some(99.0))); + assert!(fa.unsafe_warning, "unsafe must still fire"); +} diff --git a/src/app/tests/warnings/exclude_and_error_handling.rs b/src/app/tests/warnings/exclude_and_error_handling.rs index f7f9172a..938af62d 100644 --- a/src/app/tests/warnings/exclude_and_error_handling.rs +++ b/src/app/tests/warnings/exclude_and_error_handling.rs @@ -49,7 +49,13 @@ fn test_error_handling_skipped_for_test_fn() { }); fa.is_test = true; let mut results = vec![fa]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!(!results[0].error_handling_warning); assert_eq!(summary.error_handling_warnings, 0); } @@ -64,7 +70,13 @@ fn test_error_handling_flagged_for_non_test_fn() { }); fa.is_test = false; let mut results = vec![fa]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!(results[0].error_handling_warning); assert_eq!(summary.error_handling_warnings, 1); } @@ -84,7 +96,13 @@ fn test_error_handling_flagged_for_lone_panic() { }); fa.is_test = false; let mut results = vec![fa]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!(results[0].error_handling_warning); assert_eq!(summary.error_handling_warnings, 1); } @@ -104,7 +122,13 @@ fn test_unsafe_suppressed_by_allow_annotation() { let unsafe_lines: HashMap> = [("test.rs".to_string(), [4].into_iter().collect())].into(); - apply_extended_warnings(&mut results, &config, &mut summary, &unsafe_lines); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &unsafe_lines, + &HashMap::new(), + ); assert!( !results[0].unsafe_warning, "qual:allow(unsafe) should suppress unsafe warning" @@ -121,7 +145,13 @@ fn test_unsafe_without_allow_still_warned() { ..Default::default() })]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!( results[0].unsafe_warning, "Without annotation, unsafe should still warn" diff --git a/src/app/tests/warnings/extended_warnings.rs b/src/app/tests/warnings/extended_warnings.rs index f5c0b7dc..aa3a74ee 100644 --- a/src/app/tests/warnings/extended_warnings.rs +++ b/src/app/tests/warnings/extended_warnings.rs @@ -115,7 +115,13 @@ fn test_nesting_depth_at_threshold_no_warning() { max_nesting: 4, ..Default::default() })]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!(!results[0].nesting_depth_warning, "4 == threshold, no warn"); } @@ -127,7 +133,13 @@ fn test_function_length_at_threshold_no_warning() { function_lines: 60, ..Default::default() })]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!( !results[0].function_length_warning, "60 == threshold, no warn" @@ -143,7 +155,13 @@ fn test_error_handling_expect_allowed() { expect_count: 3, ..Default::default() })]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!( !results[0].error_handling_warning, "expect allowed, no warn" @@ -159,7 +177,13 @@ fn test_error_handling_expect_not_allowed() { expect_count: 1, ..Default::default() })]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!( results[0].error_handling_warning, "expect not allowed, should warn" @@ -179,7 +203,13 @@ fn test_suppressed_functions_skipped() { }); func.suppressed = true; let mut results = vec![func]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!(!results[0].nesting_depth_warning); assert!(!results[0].function_length_warning); assert!(!results[0].unsafe_warning); @@ -197,7 +227,13 @@ fn test_complexity_suppressed_functions_skipped() { }); func.complexity_suppressed = true; let mut results = vec![func]; - apply_extended_warnings(&mut results, &config, &mut summary, &HashMap::new()); + apply_extended_warnings( + &mut results, + &config, + &mut summary, + &HashMap::new(), + &HashMap::new(), + ); assert!(!results[0].nesting_depth_warning); assert!(!results[0].function_length_warning); } diff --git a/src/app/tests/warnings/flag_application.rs b/src/app/tests/warnings/flag_application.rs index e0aa575f..b67f90ee 100644 --- a/src/app/tests/warnings/flag_application.rs +++ b/src/app/tests/warnings/flag_application.rs @@ -15,6 +15,7 @@ fn file_suppressed(fa_line: usize, sup_line: usize, dim: Dimension) -> (bool, bo line: sup_line, dimensions: vec![dim], reason: None, + target: None, }; apply_file_suppressions(&mut fa, &[sup]); (fa.suppressed, fa.complexity_suppressed) diff --git a/src/app/tests/warnings/mod.rs b/src/app/tests/warnings/mod.rs index 4a4a88fb..b54b0004 100644 --- a/src/app/tests/warnings/mod.rs +++ b/src/app/tests/warnings/mod.rs @@ -14,6 +14,7 @@ pub(super) use crate::report::Summary; pub(super) use std::collections::{HashMap, HashSet}; mod complexity_flags; +mod complexity_targeted; mod exclude_and_error_handling; mod extended_warnings; mod flag_application; @@ -23,6 +24,9 @@ mod orphan_dry_and_disabled; mod orphan_mod_internals; mod orphan_module_tq_arch; mod orphan_support; +mod orphan_target_helpers; +mod orphan_targeting; +mod orphan_too_loose; pub(super) use orphan_support::*; // ── apply_extended_warnings ─────────────────────────────────── @@ -65,7 +69,13 @@ pub(super) fn apply_warnings( ) -> (FunctionAnalysis, Summary) { let mut summary = Summary::default(); let mut results = vec![func]; - apply_extended_warnings(&mut results, config, &mut summary, unsafe_lines); + apply_extended_warnings( + &mut results, + config, + &mut summary, + unsafe_lines, + &HashMap::new(), + ); (results.into_iter().next().unwrap(), summary) } @@ -127,6 +137,7 @@ pub(super) fn complexity_sup_orphans( line: sup_line, dimensions: vec![crate::findings::Dimension::Complexity], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); diff --git a/src/app/tests/warnings/orphan_basics_and_suppression.rs b/src/app/tests/warnings/orphan_basics_and_suppression.rs index 45101c71..2b7147d4 100644 --- a/src/app/tests/warnings/orphan_basics_and_suppression.rs +++ b/src/app/tests/warnings/orphan_basics_and_suppression.rs @@ -90,8 +90,12 @@ fn complexity_metric_extra_cases() -> Vec<(&'static str, usize, usize, Complexit }, ), ( + // The marker attaches to the function (line 6); the magic literal + // sits deeper in the body (line 12). The orphan position anchors at + // the function line, so a marker on the function — not on the + // literal — is the one that matches. "magic number", - 10, + 6, 6, ComplexityMetrics { magic_numbers: vec![MagicNumberOccurrence { @@ -135,6 +139,7 @@ fn suppressed_srp_param_over_threshold_is_not_orphan() { line: 5, dimensions: vec![crate::findings::Dimension::Srp], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); @@ -158,7 +163,7 @@ fn suppressed_srp_param_over_threshold_is_not_orphan() { fn coupling_marker_is_not_orphan_for_structural_coupling_finding() { // Structural binary checks (OI, SIT, DEH, IET) carry // `dimension == Coupling` and are line-anchored — a 5-line - // qual:allow(coupling) window DOES suppress them. The orphan + // coupling-marker window DOES suppress them. The orphan // checker must treat coupling-only markers as verifiable when a // line-anchored coupling position is available in the file. use crate::findings::Suppression; @@ -169,6 +174,7 @@ fn coupling_marker_is_not_orphan_for_structural_coupling_finding() { line: 10, dimensions: vec![crate::findings::Dimension::Coupling], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); @@ -202,6 +208,7 @@ fn coupling_only_marker_with_no_line_anchored_finding_is_skipped() { line: 5, dimensions: vec![crate::findings::Dimension::Coupling], reason: None, + target: None, }], ); let analysis = empty_analysis(); diff --git a/src/app/tests/warnings/orphan_dry_and_disabled.rs b/src/app/tests/warnings/orphan_dry_and_disabled.rs index 4e253941..5c36c0b8 100644 --- a/src/app/tests/warnings/orphan_dry_and_disabled.rs +++ b/src/app/tests/warnings/orphan_dry_and_disabled.rs @@ -35,6 +35,7 @@ fn dry_marker_orphan_depends_on_finding_kind_and_window() { line: *sup_line, dimensions: vec![crate::findings::Dimension::Dry], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); @@ -64,6 +65,7 @@ fn complexity_marker_is_orphan_when_complexity_dimension_disabled() { line: 5, dimensions: vec![crate::findings::Dimension::Complexity], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); @@ -103,6 +105,7 @@ fn srp_marker_is_orphan_when_srp_dimension_disabled() { line: 2, dimensions: vec![crate::findings::Dimension::Srp], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); @@ -155,6 +158,7 @@ fn srp_marker_within_5_line_window_is_not_orphan() { line: *sup_line, dimensions: vec![crate::findings::Dimension::Srp], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); diff --git a/src/app/tests/warnings/orphan_mod_internals.rs b/src/app/tests/warnings/orphan_mod_internals.rs index e04141a7..984f6f2b 100644 --- a/src/app/tests/warnings/orphan_mod_internals.rs +++ b/src/app/tests/warnings/orphan_mod_internals.rs @@ -17,6 +17,7 @@ fn marker(file: &str, line: usize, dims: &[Dimension]) -> HashMap crate::domain::findings::Sr production_lines: 900, independent_clusters: 1, cluster_names: vec![], - length_score: 0.0, + // A 900-line module has its length component active (score > 1.0); + // the cohesion component is inactive (1 cluster <= max). Mirrors a + // real "long but cohesive" finding so component-gated position + // emission (file_length only) is exercised. + length_score: 1.5, }, } } @@ -214,6 +218,7 @@ pub(crate) fn srp_orphan_count( line: 5, dimensions: dims.to_vec(), reason: None, + target: None, }], ); let mut analysis = empty_analysis(); @@ -255,6 +260,7 @@ pub(crate) fn complexity_orphans_for(fa: FunctionAnalysis) -> usize { line: fa.line, dimensions: vec![crate::findings::Dimension::Complexity], reason: None, + target: None, }], ); let mut analysis = empty_analysis(); diff --git a/src/app/tests/warnings/orphan_target_helpers.rs b/src/app/tests/warnings/orphan_target_helpers.rs new file mode 100644 index 00000000..f3f1cd03 --- /dev/null +++ b/src/app/tests/warnings/orphan_target_helpers.rs @@ -0,0 +1,106 @@ +//! Shared helpers for the targeted-orphan tests (`orphan_too_loose` + +//! `orphan_targeting`), kept in one place so each test file stays under the +//! SRP file-length cap. + +use super::*; +use crate::domain::findings::{OrphanSuppression, SrpFinding, SrpFindingDetails}; +use crate::domain::SuppressionTarget; +use crate::findings::{Dimension, Suppression}; + +/// Build a metric or boolean target from an optional pin. +pub(super) fn target_of(name: &str, pin: Option) -> SuppressionTarget { + match pin { + Some(pin) => SuppressionTarget::Metric { + name: name.to_string(), + pin, + }, + None => SuppressionTarget::Boolean { + name: name.to_string(), + }, + } +} + +/// Run the orphan detector for one targeted marker on `src/x.rs` (default cfg). +pub(super) fn orphans( + dim: Dimension, + target: &str, + pin: Option, + sup_line: usize, + seed: impl FnMut(&mut crate::report::AnalysisResult), +) -> Vec { + orphans_cfg( + target_of(target, pin), + dim, + sup_line, + &Config::default(), + seed, + ) +} + +/// Like `orphans`, but with a pre-built target and an explicit config (so +/// `pin_headroom` overrides and per-dimension enables can be exercised). +pub(super) fn orphans_cfg( + target: SuppressionTarget, + dim: Dimension, + sup_line: usize, + config: &Config, + mut seed: impl FnMut(&mut crate::report::AnalysisResult), +) -> Vec { + let mut sups = HashMap::new(); + sups.insert( + "src/x.rs".to_string(), + vec![Suppression { + line: sup_line, + dimensions: vec![dim], + reason: Some("r".to_string()), + target: Some(target), + }], + ); + let mut analysis = empty_analysis(); + seed(&mut analysis); + crate::app::orphan_suppressions::detect_orphan_suppressions( + &sups, + &std::collections::HashMap::new(), + &analysis, + config, + ) +} + +/// A module-length finding at `production_lines` lines (length component +/// active, cohesion inactive — inherited from `make_srp_module_finding`). +pub(super) fn srp_module(file: &str, production_lines: usize) -> SrpFinding { + let mut f = make_srp_module_finding(file); + if let SrpFindingDetails::ModuleLength { + production_lines: pl, + .. + } = &mut f.details + { + *pl = production_lines; + } + f +} + +/// A module-length finding with explicit length/cohesion activity, so the +/// component-gated position emission can be exercised: `length_score > 1.0` +/// activates the `file_length` target; `clusters > max (2)` activates the +/// `max_independent_clusters` target. +pub(super) fn srp_module_full( + file: &str, + production_lines: usize, + length_score: f64, + clusters: usize, +) -> SrpFinding { + let mut f = make_srp_module_finding(file); + if let SrpFindingDetails::ModuleLength { + production_lines: pl, + independent_clusters: ic, + length_score: ls, + .. + } = &mut f.details + { + *pl = production_lines; + *ic = clusters; + *ls = length_score; + } + f +} diff --git a/src/app/tests/warnings/orphan_targeting.rs b/src/app/tests/warnings/orphan_targeting.rs new file mode 100644 index 00000000..f44faac1 --- /dev/null +++ b/src/app/tests/warnings/orphan_targeting.rs @@ -0,0 +1,335 @@ +//! Target-awareness of the orphan detector: a targeted `allow(dim, t)` marker +//! is verified against a finding of *that exact kind* (not just any finding of +//! the dimension), per-component for SRP module findings, and module-global +//! coupling pins are treated as unverifiable rather than false-flagged. + +use super::orphan_target_helpers::*; +use super::*; +use crate::domain::findings::OrphanKind; +use crate::findings::Dimension; + +// ── target-awareness ─────────────────────────────────────────── + +#[test] +fn file_length_pin_mismatches_god_struct_is_orphan() { + // The only SRP finding is a god-struct (StructCohesion); a file_length + // pin targets a different kind, so it matches nothing → orphan. + let out = orphans(Dimension::Srp, "file_length", Some(400.0), 5, |a| { + a.findings.srp.push(make_srp_struct_finding("src/x.rs", 5)); + }); + assert_eq!(out.len(), 1, "file_length pin must not match god_struct"); + // The orphan must carry its target so reporters name which kind is stale, + // not just `qual:allow(srp)`. + assert_eq!(out[0].target_spec().as_deref(), Some("file_length=400")); + assert_eq!(out[0].target_suffix(), ", file_length=400"); +} + +#[test] +fn complexity_wrong_metric_target_is_orphan() { + // Function trips cognitive only; a max_cyclomatic pin matches nothing. + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cyclomatic", + Some(20.0), + 10, + |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }, + ); + assert_eq!( + out.len(), + 1, + "max_cyclomatic pin must not match a cognitive finding" + ); +} + +// ── component-gating: a pin on the inactive component is stale ── + +#[test] +fn cluster_pin_on_length_only_finding_is_orphan() { + // Length component active (score 1.5), cohesion inactive (1 cluster <= max 2). + // A max_independent_clusters pin silences nothing → stale orphan. + let out = orphans( + Dimension::Srp, + "max_independent_clusters", + Some(5.0), + 1, + |a| { + a.findings + .srp + .push(srp_module_full("src/x.rs", 350, 1.5, 1)); + }, + ); + assert_eq!( + out.len(), + 1, + "cluster pin on a length-only finding must be flagged, got {out:?}" + ); + assert_eq!( + out[0].kind, + OrphanKind::Stale, + "an inactive-component pin is stale: {out:?}" + ); +} + +#[test] +fn file_length_pin_on_cluster_only_finding_is_orphan() { + // Cohesion component active (5 clusters > max 2), length inactive (score 0.5). + // A file_length pin silences nothing → stale orphan. + let out = orphans(Dimension::Srp, "file_length", Some(400.0), 1, |a| { + a.findings + .srp + .push(srp_module_full("src/x.rs", 200, 0.5, 5)); + }); + assert_eq!( + out.len(), + 1, + "file_length pin on a cluster-only finding must be flagged, got {out:?}" + ); + assert_eq!( + out[0].kind, + OrphanKind::Stale, + "an inactive-component pin is stale: {out:?}" + ); +} + +// ── magic_numbers position anchors at the function line ──────── + +#[test] +fn magic_numbers_pin_above_function_is_not_orphan() { + // A `allow(complexity, magic_numbers)` marker sits above the function + // (line 10); the magic literal is deep in the body (line 25). The + // suppression attaches to the function, so the orphan position must also + // anchor at the function line — otherwise the valid marker is falsely + // reported stale because the literal is outside the marker's window. + let m = ComplexityMetrics { + magic_numbers: vec![crate::adapters::analyzers::iosp::MagicNumberOccurrence { + line: 25, + value: "42".to_string(), + }], + ..Default::default() + }; + let out = orphans(Dimension::Complexity, "magic_numbers", None, 10, |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }); + assert!( + out.is_empty(), + "magic_numbers marker on the fn must match, got {out:?}" + ); +} + +// ── targeted coupling markers are module-global → unverifiable ─ + +#[test] +fn targeted_coupling_pin_with_structural_finding_is_not_orphan() { + // A `allow(coupling, max_fan_out=N)` pins a module-global metric with no + // line-anchored position. The file also trips a structural coupling + // finding (OI/SIT/DEH/IET, target=None). The structural finding must NOT + // make the targeted pin "verifiable" and then unmatched → it must be + // skipped, not falsely reported as a stale orphan. + let out = orphans(Dimension::Coupling, "max_fan_out", Some(10.0), 5, |a| { + a.findings + .coupling + .push(make_structural_coupling_finding("src/x.rs", 5)); + }); + assert!( + out.is_empty(), + "targeted coupling pin is module-global, not orphan: {out:?}" + ); +} + +#[test] +fn targeted_coupling_sdp_pin_without_finding_is_not_orphan() { + // A boolean coupling target (sdp) is likewise module-global; with no + // coupling position at all the marker is simply unverifiable, not orphan. + let out = orphans(Dimension::Coupling, "sdp", None, 5, |_a| {}); + assert!( + out.is_empty(), + "module-global coupling marker is unverifiable: {out:?}" + ); +} + +#[test] +fn coupling_metric_pin_is_never_too_loose_checked() { + // Coupling metrics are module-global (no line-anchored position), so a + // too-loose `allow(coupling, max_instability=0.99)` over a real I=0.83 can + // never be flagged — a deliberate, documented blind spot. Pins the contract + // so a future change to `is_verifiable` is noticed. + let out = orphans(Dimension::Coupling, "max_instability", Some(0.99), 5, |a| { + a.findings + .coupling + .push(make_structural_coupling_finding("src/x.rs", 5)); + }); + assert!( + out.is_empty(), + "coupling metric pins are not too-loose-checked: {out:?}" + ); +} + +#[test] +fn structural_coupling_target_matches_its_finding() { + // A structural coupling target (oi/sit/deh/iet) IS line-anchored, so + // `allow(coupling, sit)` next to a SIT finding matches → not orphan. + let out = orphans(Dimension::Coupling, "sit", None, 5, |a| { + a.findings + .coupling + .push(make_structural_coupling_finding("src/x.rs", 5)); + }); + assert!( + out.is_empty(), + "allow(coupling, sit) matches a SIT finding: {out:?}" + ); +} + +#[test] +fn structural_coupling_target_wrong_kind_is_orphan() { + // The finding is SIT; an `oi` marker matches no position → stale orphan + // (and a structural target is verifiable, unlike a module-global metric). + let out = orphans(Dimension::Coupling, "oi", None, 5, |a| { + a.findings + .coupling + .push(make_structural_coupling_finding("src/x.rs", 5)); + }); + assert_eq!( + out.len(), + 1, + "allow(coupling, oi) must not match a SIT finding: {out:?}" + ); +} + +// ── both module-length components active ─────────────────────── + +#[test] +fn both_active_module_finding_emits_both_targets() { + // length AND cohesion both active (900 lines / score 1.5, 5 clusters > max + // 2): a tight file_length pin and a tight max_independent_clusters pin are + // each non-stale; a god_struct pin (wrong kind) is still an orphan. + let push = |a: &mut crate::report::AnalysisResult| { + a.findings + .srp + .push(srp_module_full("src/x.rs", 900, 1.5, 5)); + }; + assert!(orphans(Dimension::Srp, "file_length", Some(900.0), 1, push).is_empty()); + assert!(orphans( + Dimension::Srp, + "max_independent_clusters", + Some(5.0), + 1, + push + ) + .is_empty()); + assert_eq!( + orphans(Dimension::Srp, "god_struct", None, 1, push).len(), + 1 + ); +} + +// ── target-awareness for arch / dry / tq targeted markers ────── + +fn arch_finding( + file: &str, + line: usize, + rule_id: &str, +) -> crate::domain::findings::ArchitectureFinding { + crate::domain::findings::ArchitectureFinding { + common: make_finding(file, line, Dimension::Architecture, rule_id), + } +} + +fn arch_enabled() -> Config { + let mut c = Config::default(); + c.architecture.enabled = true; + c +} + +#[test] +fn architecture_targeted_wrong_family_is_orphan() { + // Only finding is a `forbidden` edge; a `layer` pin matches no position. + let cfg = arch_enabled(); + let out = orphans_cfg( + target_of("layer", None), + Dimension::Architecture, + 5, + &cfg, + |a| { + a.findings + .architecture + .push(arch_finding("src/x.rs", 5, "architecture/forbidden")); + }, + ); + assert_eq!( + out.len(), + 1, + "layer marker must not match a forbidden finding: {out:?}" + ); +} + +#[test] +fn architecture_targeted_right_family_is_clean() { + let cfg = arch_enabled(); + let out = orphans_cfg( + target_of("forbidden", None), + Dimension::Architecture, + 5, + &cfg, + |a| { + a.findings.architecture.push(arch_finding( + "src/x.rs", + 5, + "architecture/forbidden/edge", + )); + }, + ); + assert!( + out.is_empty(), + "forbidden marker matches a forbidden finding: {out:?}" + ); +} + +#[test] +fn tq_targeted_wrong_kind_is_orphan() { + use crate::domain::findings::TqFindingKind; + let out = orphans(Dimension::TestQuality, "uncovered", None, 5, |a| { + a.findings + .test_quality + .push(make_tq_finding("src/x.rs", 5, TqFindingKind::NoAssertion)); + }); + assert_eq!( + out.len(), + 1, + "uncovered marker must not match a no_assertion finding: {out:?}" + ); +} + +#[test] +fn tq_targeted_right_kind_is_clean() { + use crate::domain::findings::TqFindingKind; + let out = orphans(Dimension::TestQuality, "no_assertion", None, 5, |a| { + a.findings + .test_quality + .push(make_tq_finding("src/x.rs", 5, TqFindingKind::NoAssertion)); + }); + assert!( + out.is_empty(), + "no_assertion marker matches its own kind: {out:?}" + ); +} + +#[test] +fn dry_targeted_wrong_kind_is_orphan() { + // Only finding is a wildcard import; a `duplicate` pin matches nothing. + let out = orphans(Dimension::Dry, "duplicate", None, 5, |a| { + a.findings + .dry + .push(make_dry_wildcard_finding("src/x.rs", 5)); + }); + assert_eq!( + out.len(), + 1, + "duplicate marker must not match a wildcard finding: {out:?}" + ); +} diff --git a/src/app/tests/warnings/orphan_too_loose.rs b/src/app/tests/warnings/orphan_too_loose.rs new file mode 100644 index 00000000..cd268106 --- /dev/null +++ b/src/app/tests/warnings/orphan_too_loose.rs @@ -0,0 +1,298 @@ +//! Too-loose-pin orphan detection: a metric pin parked further above the +//! value it covers than `[suppression].pin_headroom` (default 10%) is +//! reported; a pin within headroom, or too tight (re-firing), is healthy. + +use super::orphan_target_helpers::*; +use super::*; +use crate::domain::findings::OrphanKind; +use crate::findings::Dimension; + +#[test] +fn file_length_pin_within_headroom_is_clean() { + // 900 lines, pin 950 → 950 <= 900*1.10 (990) → accepted. + let out = orphans(Dimension::Srp, "file_length", Some(950.0), 1, |a| { + a.findings.srp.push(srp_module("src/x.rs", 900)); + }); + assert!( + out.is_empty(), + "pin within 10% headroom is fine, got {out:?}" + ); +} + +#[test] +fn file_length_pin_too_loose_is_orphan() { + // 900 lines, pin 1100 → 1100 > 990 → too loose. + let out = orphans(Dimension::Srp, "file_length", Some(1100.0), 1, |a| { + a.findings.srp.push(srp_module("src/x.rs", 900)); + }); + assert_eq!(out.len(), 1, "pin 1100 over value 900 must be too-loose"); + let reason = out[0].reason.as_deref().unwrap_or(""); + assert!( + reason.contains("900"), + "reason should name the value: {reason}" + ); + assert!( + reason.contains("tighten"), + "reason should advise tightening: {reason}" + ); +} + +#[test] +fn complexity_cognitive_pin_too_loose_is_orphan() { + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cognitive", + Some(30.0), + 10, + |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }, + ); + assert_eq!(out.len(), 1, "pin 30 over cognitive 18 must be too-loose"); +} + +#[test] +fn complexity_cognitive_pin_within_headroom_is_clean() { + // cognitive 18, pin 19 → 19 <= 18*1.10 (19.8) → accepted. + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cognitive", + Some(19.0), + 10, + |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }, + ); + assert!(out.is_empty(), "pin within headroom is fine, got {out:?}"); +} + +#[test] +fn complexity_pin_too_tight_refires_not_orphan() { + // cognitive 18, pin 16 → finding re-fires above the pin; the pin is + // legitimately limiting, not stale → no orphan. + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cognitive", + Some(16.0), + 10, + |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }, + ); + assert!( + out.is_empty(), + "too-tight (re-firing) pin is not an orphan, got {out:?}" + ); +} + +// ── too-loose for the other SRP metric targets ───────────────── + +#[test] +fn cluster_pin_too_loose_is_orphan() { + // cohesion active (5 clusters > max 2); pin 10 > 5*1.10 → too loose. + let out = orphans( + Dimension::Srp, + "max_independent_clusters", + Some(10.0), + 1, + |a| { + a.findings + .srp + .push(srp_module_full("src/x.rs", 200, 0.5, 5)); + }, + ); + assert_eq!(out.len(), 1); + assert_eq!(out[0].kind, OrphanKind::PinTooLoose, "{out:?}"); + assert!(out[0].reason.as_deref().unwrap_or("").contains('5')); +} + +#[test] +fn cluster_pin_within_headroom_is_clean() { + // 5 clusters, pin 5 → covered and 5 <= 5*1.10 → fine. + let out = orphans( + Dimension::Srp, + "max_independent_clusters", + Some(5.0), + 1, + |a| { + a.findings + .srp + .push(srp_module_full("src/x.rs", 200, 0.5, 5)); + }, + ); + assert!(out.is_empty(), "{out:?}"); +} + +#[test] +fn max_parameters_pin_too_loose_is_orphan() { + // 7-param function (make_srp_param_finding); pin 20 > 7*1.10 → too loose. + let out = orphans(Dimension::Srp, "max_parameters", Some(20.0), 5, |a| { + a.findings + .srp + .push(make_srp_param_finding("src/x.rs", 5, false)); + }); + assert_eq!(out.len(), 1); + assert_eq!(out[0].kind, OrphanKind::PinTooLoose, "{out:?}"); +} + +#[test] +fn max_parameters_pin_within_headroom_is_clean() { + let out = orphans(Dimension::Srp, "max_parameters", Some(7.0), 5, |a| { + a.findings + .srp + .push(make_srp_param_finding("src/x.rs", 5, false)); + }); + assert!(out.is_empty(), "{out:?}"); +} + +// ── headroom boundary + config-driven headroom ───────────────── + +#[test] +fn pin_exactly_at_headroom_ceiling_is_clean() { + // cognitive 18, pin 19.8 == 18*1.10 exactly → strict `>` keeps it clean. + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cognitive", + Some(19.8), + 10, + |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }, + ); + assert!( + out.is_empty(), + "pin exactly at the ceiling is healthy: {out:?}" + ); +} + +#[test] +fn pin_just_above_headroom_ceiling_is_orphan() { + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cognitive", + Some(19.81), + 10, + |a| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }, + ); + assert_eq!(out.len(), 1); + assert_eq!(out[0].kind, OrphanKind::PinTooLoose, "{out:?}"); +} + +#[test] +fn pin_headroom_config_flips_the_verdict() { + // cognitive 18, pin 20. Default headroom 0.10 (ceiling 19.8) → too loose; + // a 0.20 headroom (ceiling 21.6) accepts the very same pin. + let m = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let seed = |a: &mut crate::report::AnalysisResult| { + a.results = vec![make_fa_with_complexity("src/x.rs", 10, m.clone())]; + }; + let tight = orphans(Dimension::Complexity, "max_cognitive", Some(20.0), 10, seed); + assert_eq!(tight.len(), 1, "default 10% headroom flags pin 20 over 18"); + + let mut cfg = Config::default(); + cfg.suppression.pin_headroom = 0.20; + let loose = orphans_cfg( + target_of("max_cognitive", Some(20.0)), + Dimension::Complexity, + 10, + &cfg, + seed, + ); + assert!( + loose.is_empty(), + "20% headroom accepts pin 20 over 18: {loose:?}" + ); +} + +#[test] +fn too_loose_uses_largest_covered_value_not_smallest() { + // Two cognitive findings under one marker (16 and 18); pin 19 is tight to + // the larger (18) — must stay clean. A min-fold regression would compare + // against 16 and wrongly flag it. + let lo = ComplexityMetrics { + cognitive_complexity: 16, + ..Default::default() + }; + let hi = ComplexityMetrics { + cognitive_complexity: 18, + ..Default::default() + }; + let out = orphans( + Dimension::Complexity, + "max_cognitive", + Some(19.0), + 10, + |a| { + a.results = vec![ + make_fa_with_complexity("src/x.rs", 10, lo.clone()), + make_fa_with_complexity("src/x.rs", 11, hi.clone()), + ]; + }, + ); + assert!( + out.is_empty(), + "pin tight to the largest covered value is clean: {out:?}" + ); +} + +#[test] +fn orphan_target_rendering_covers_metric_boolean_and_blanket() { + use crate::domain::findings::{OrphanKind, OrphanSuppression}; + use crate::domain::SuppressionTarget; + let mk = |target| OrphanSuppression { + file: "x".into(), + line: 1, + dimensions: vec![Dimension::Srp], + target, + reason: None, + kind: OrphanKind::Stale, + }; + let metric = mk(Some(SuppressionTarget::Metric { + name: "file_length".into(), + pin: 400.0, + })); + assert_eq!(metric.target_spec().as_deref(), Some("file_length=400")); + assert_eq!(metric.target_suffix(), ", file_length=400"); + // A large finite pin must not saturate (no `as i64` cast). + let big = mk(Some(SuppressionTarget::Metric { + name: "file_length".into(), + pin: 1e15, + })); + assert_eq!( + big.target_spec().as_deref(), + Some("file_length=1000000000000000") + ); + let boolean = mk(Some(SuppressionTarget::Boolean { + name: "god_struct".into(), + })); + assert_eq!(boolean.target_spec().as_deref(), Some("god_struct")); + assert_eq!(boolean.target_suffix(), ", god_struct"); + let blanket = mk(None); + assert_eq!(blanket.target_spec(), None); + assert_eq!(blanket.target_suffix(), ""); +} diff --git a/src/app/tq_metrics.rs b/src/app/tq_metrics.rs index fd293d1f..b28ddc31 100644 --- a/src/app/tq_metrics.rs +++ b/src/app/tq_metrics.rs @@ -19,7 +19,7 @@ pub(super) fn compute_tq( .iter() .map(|(path, _, file)| (path.as_str(), file)) .collect(); - let scope = crate::adapters::analyzers::iosp::scope::ProjectScope::from_files(&scope_refs); + let scope = crate::adapters::shared::project_scope::ProjectScope::from_files(&scope_refs); let mut declared_fns = crate::adapters::analyzers::dry::collect_declared_functions(parsed); crate::adapters::analyzers::dry::dead_code::mark_api_declarations( &mut declared_fns, @@ -52,8 +52,10 @@ pub(super) fn compute_tq( Some(crate::adapters::analyzers::tq::analyze_test_quality(&ctx)) } -/// Mark TQ warnings as suppressed based on `// qual:allow(test)` comments. -/// Operation: iteration + suppression check, no own calls. +/// Mark TQ warnings as suppressed based on `// qual:allow(test_quality[, kind])` +/// comments. A blanket allow silences every TQ kind; a targeted form silences +/// one (`no_assertion` / `no_sut` / `untested` / `uncovered` / `untested_logic`). +/// Operation: iteration + per-kind suppression check via closures. pub(super) fn mark_tq_suppressions( tq: Option<&mut crate::adapters::analyzers::tq::TqAnalysis>, suppression_lines: &std::collections::HashMap>, @@ -65,14 +67,28 @@ pub(super) fn mark_tq_suppressions( let window = super::suppression_windows::TQ; tq.warnings.iter_mut().for_each(|w| { if let Some(sups) = suppression_lines.get(&w.file) { + let target = tq_target_name(&w.kind); w.suppressed = sups.iter().any(|sup| { let in_window = sup.line <= w.line && w.line - sup.line <= window; - in_window && sup.covers(tq_dim) + in_window && sup.suppresses(tq_dim, target, None) }); } }); } +/// The `allow(test_quality, )` name for a TQ warning kind. +/// Operation: enum dispatch, no own calls. +fn tq_target_name(kind: &crate::adapters::analyzers::tq::TqWarningKind) -> &'static str { + use crate::adapters::analyzers::tq::TqWarningKind as K; + match kind { + K::NoAssertion => "no_assertion", + K::NoSut => "no_sut", + K::Untested => "untested", + K::Uncovered => "uncovered", + K::UntestedLogic { .. } => "untested_logic", + } +} + /// Count TQ warnings and update summary, excluding suppressed entries. /// Operation: iteration + conditional counting, no own calls. pub(super) fn count_tq_warnings( diff --git a/src/app/warnings.rs b/src/app/warnings.rs index f10c6b64..06e949d2 100644 --- a/src/app/warnings.rs +++ b/src/app/warnings.rs @@ -1,6 +1,7 @@ use std::collections::{HashMap, HashSet}; use crate::adapters::analyzers::iosp::{Classification, FunctionAnalysis}; +use crate::app::complexity_suppressions::{bool_warns, metric_warns}; use crate::config::Config; use crate::findings::Suppression; use crate::report::Summary; @@ -79,7 +80,11 @@ pub(super) fn exclude_test_violations(results: &mut [FunctionAnalysis]) { /// Operation: checks suppression lines against function line, sets suppressed flags. pub(super) fn apply_file_suppressions(fa: &mut FunctionAnalysis, suppressions: &[Suppression]) { let covers_iosp = |s: &Suppression| s.covers(crate::findings::Dimension::Iosp); - let covers_cx = |s: &Suppression| s.covers(crate::findings::Dimension::Complexity); + // Only a BLANKET `allow(complexity)` (no target) silences the whole + // dimension; targeted `allow(complexity, )` forms are handled + // per-kind in `apply_complexity_warnings` / `apply_extended_warnings`. + let blanket_cx = + |s: &Suppression| s.covers(crate::findings::Dimension::Complexity) && s.target.is_none(); let window = crate::findings::ANNOTATION_WINDOW; let is_adjacent = |s: &Suppression| s.line <= fa.line && fa.line - s.line <= window; @@ -88,7 +93,7 @@ pub(super) fn apply_file_suppressions(fa: &mut FunctionAnalysis, suppressions: & .iter() .any(|s| is_adjacent(s) && covers_iosp(s)); fa.complexity_suppressed = - fa.complexity_suppressed || suppressions.iter().any(|s| is_adjacent(s) && covers_cx(s)); + fa.complexity_suppressed || suppressions.iter().any(|s| is_adjacent(s) && blanket_cx(s)); } /// Set cognitive/cyclomatic complexity and magic number warning flags. @@ -97,6 +102,7 @@ pub(super) fn apply_complexity_warnings( results: &mut [FunctionAnalysis], config: &Config, summary: &mut Summary, + suppression_lines: &HashMap>, ) { if !config.complexity.enabled { return; @@ -105,19 +111,40 @@ pub(super) fn apply_complexity_warnings( if fa.suppressed || fa.complexity_suppressed { continue; } - if let Some(ref m) = fa.complexity { - if m.cognitive_complexity > config.complexity.max_cognitive - || m.cyclomatic_complexity > config.complexity.max_cyclomatic - { - fa.cognitive_warning = m.cognitive_complexity > config.complexity.max_cognitive; - fa.cyclomatic_warning = m.cyclomatic_complexity > config.complexity.max_cyclomatic; - summary.complexity_warnings += 1; - } - // Magic numbers are expected in tests (assert_eq!(x, 42) etc.), - // so skip test functions for this specific check. - if !fa.is_test { - summary.magic_number_warnings += m.magic_numbers.len(); - } + // Copy the metrics out so the per-kind suppression check (which borrows + // `fa`) doesn't overlap the warning-flag writes. + let Some((cognitive, cyclomatic, magic_count)) = fa.complexity.as_ref().map(|m| { + ( + m.cognitive_complexity, + m.cyclomatic_complexity, + m.magic_numbers.len(), + ) + }) else { + continue; + }; + let cog = cognitive > config.complexity.max_cognitive; + let cyc = cyclomatic > config.complexity.max_cyclomatic; + fa.cognitive_warning = metric_warns( + suppression_lines, + fa, + cog, + cognitive as f64, + "max_cognitive", + ); + fa.cyclomatic_warning = metric_warns( + suppression_lines, + fa, + cyc, + cyclomatic as f64, + "max_cyclomatic", + ); + if fa.cognitive_warning || fa.cyclomatic_warning { + summary.complexity_warnings += 1; + } + // Magic numbers are expected in tests (assert_eq!(x, 42) etc.), so + // skip test functions for this specific check. + if bool_warns(suppression_lines, fa, !fa.is_test, "magic_numbers") { + summary.magic_number_warnings += magic_count; } } } @@ -163,68 +190,118 @@ fn is_unsafe_allowed( .unwrap_or(false) } +/// Config-derived thresholds/toggles for the extended complexity checks. +struct ExtendedCx { + max_nesting: usize, + max_lines: usize, + test_max_lines: usize, + check_unsafe: bool, + check_errors: bool, + expect_threshold: usize, +} + +impl ExtendedCx { + /// Operation: field reads + one ternary, no own calls. + fn from(config: &Config) -> Self { + let cx = &config.complexity; + Self { + max_nesting: cx.max_nesting_depth, + max_lines: cx.max_function_lines, + test_max_lines: config + .tests + .max_function_lines + .unwrap_or(cx.max_function_lines), + check_unsafe: cx.detect_unsafe, + check_errors: cx.detect_error_handling, + expect_threshold: if cx.allow_expect { 0 } else { 1 }, + } + } +} + +/// Integration: filters active fns and applies the extended checks to each. pub(super) fn apply_extended_warnings( results: &mut [FunctionAnalysis], config: &Config, summary: &mut Summary, unsafe_allow_lines: &HashMap>, + suppression_lines: &HashMap>, ) { if !config.complexity.enabled { return; } - let max_nesting = config.complexity.max_nesting_depth; - let max_lines = config.complexity.max_function_lines; - let test_max_lines = config.tests.max_function_lines.unwrap_or(max_lines); - let check_unsafe = config.complexity.detect_unsafe; - let check_errors = config.complexity.detect_error_handling; - let expect_threshold = if config.complexity.allow_expect { 0 } else { 1 }; - - let is_active = |fa: &FunctionAnalysis| !fa.suppressed && !fa.complexity_suppressed; - - let has_unsafe_issue = - |fa: &FunctionAnalysis, m: &crate::adapters::analyzers::iosp::ComplexityMetrics| { - check_unsafe && m.unsafe_blocks > 0 && !is_unsafe_allowed(fa, unsafe_allow_lines) - }; - - let check_err = |fa: &FunctionAnalysis, - m: &crate::adapters::analyzers::iosp::ComplexityMetrics| { - has_error_handling_issue(fa, m, check_errors, expect_threshold) - }; - - // LONG_FN applies to test fns too (at `[tests].max_function_lines`, - // defaulting to the production limit). - let has_length_issue = - |fa: &FunctionAnalysis, m: &crate::adapters::analyzers::iosp::ComplexityMetrics| { - is_length_over(fa, m, max_lines, test_max_lines) - }; - + let cx = ExtendedCx::from(config); results .iter_mut() - .filter(|fa| is_active(fa)) + .filter(|fa| !fa.suppressed && !fa.complexity_suppressed) .for_each(|fa| { - let m = match fa.complexity { - Some(ref m) => m, - None => return, - }; - if m.max_nesting > max_nesting { - fa.nesting_depth_warning = true; - summary.nesting_depth_warnings += 1; - } - if has_length_issue(fa, m) { - fa.function_length_warning = true; - summary.function_length_warnings += 1; - } - if has_unsafe_issue(fa, m) { - fa.unsafe_warning = true; - summary.unsafe_warnings += 1; - } - if check_err(fa, m) { - fa.error_handling_warning = true; - summary.error_handling_warnings += 1; - } + apply_extended_to_fn(fa, &cx, unsafe_allow_lines, suppression_lines, summary) }); } +/// Apply nesting / length / unsafe / error-handling checks to one function, +/// each honouring a targeted `allow(complexity, )`. LONG_FN applies to +/// test fns too (at `[tests].max_function_lines`, defaulting to production). +/// Operation: per-kind decisions reaching non-violation helpers. +fn apply_extended_to_fn( + fa: &mut FunctionAnalysis, + cx: &ExtendedCx, + unsafe_allow_lines: &HashMap>, + suppression_lines: &HashMap>, + summary: &mut Summary, +) { + let Some(m) = fa.complexity.clone() else { + return; + }; + let nesting_over = metric_warns( + suppression_lines, + fa, + m.max_nesting > cx.max_nesting, + m.max_nesting as f64, + "max_nesting_depth", + ); + let length_over = metric_warns( + suppression_lines, + fa, + is_length_over(fa, &m, cx.max_lines, cx.test_max_lines), + m.function_lines as f64, + "max_function_lines", + ); + let unsafe_present = + cx.check_unsafe && m.unsafe_blocks > 0 && !is_unsafe_allowed(fa, unsafe_allow_lines); + let unsafe_over = bool_warns(suppression_lines, fa, unsafe_present, "unsafe"); + let err_present = has_error_handling_issue(fa, &m, cx.check_errors, cx.expect_threshold); + let err_over = bool_warns(suppression_lines, fa, err_present, "error_handling"); + flag_and_count( + nesting_over, + &mut fa.nesting_depth_warning, + &mut summary.nesting_depth_warnings, + ); + flag_and_count( + length_over, + &mut fa.function_length_warning, + &mut summary.function_length_warnings, + ); + flag_and_count( + unsafe_over, + &mut fa.unsafe_warning, + &mut summary.unsafe_warnings, + ); + flag_and_count( + err_over, + &mut fa.error_handling_warning, + &mut summary.error_handling_warnings, + ); +} + +/// Set a warning flag and bump its counter when `over` is true. +/// Operation: single conditional. +fn flag_and_count(over: bool, flag: &mut bool, count: &mut usize) { + if over { + *flag = true; + *count += 1; + } +} + /// Count `#[allow(` attributes in production code, excluding test module attributes. /// Operation: line-scanning logic with backward walk for attribute grouping. pub(crate) fn count_rust_allow_attrs(source: &str) -> usize { diff --git a/src/cli/explain.rs b/src/cli/explain.rs index 9d59b27b..c377fcdf 100644 --- a/src/cli/explain.rs +++ b/src/cli/explain.rs @@ -1,15 +1,97 @@ -//! CLI-level entry points for architecture diagnostics. +//! CLI-level entry points for the `--explain` flag. //! -//! The composition-root dispatches the `--explain ` flag into -//! `handle_explain`, which loads the file, compiles the architecture -//! config, runs the rule checks on that single file, and prints the -//! rendered report to stdout. +//! Two entry points share this module: +//! - `--explain ` → `handle_explain`, which loads the file, compiles the +//! architecture config, runs the rule checks on that single file, and prints +//! the rendered report to stdout. +//! - `--explain allow` → `explain_allow` / `suppression_guide`, which print the +//! `// qual:allow(...)` suppression guide (grammar + per-dimension targets +//! sourced from the shared vocabulary + the pin/orphan rationale). use crate::adapters::analyzers::architecture::compiled::compile_architecture; use crate::adapters::analyzers::architecture::explain::explain_file; use crate::config::Config; +use crate::domain::{target_kind, target_names, Dimension, TargetKind}; use std::path::Path; +/// Print the `// qual:allow(...)` suppression guide (`rustqual --explain allow`). +/// Operation: delegates to the testable builder + prints. +// qual:api +pub fn explain_allow() { + print!("{}", suppression_guide()); +} + +const GUIDE_HEADER: &str = "\nqual:allow — targeted suppressions\n\n\ +Suppress ONE finding-kind, not a whole dimension:\n\ +\x20 // qual:allow(dim, target) boolean target (takes no value)\n\ +\x20 // qual:allow(dim, target=N) metric target — value REQUIRED; re-fires above N\n\ +\x20 // qual:allow(dim) whole dimension (multi-kind dims reject this)\n\n\ +Every targeted suppression needs a reason:\n\ +\x20 // qual:allow(srp, file_length=400) reason: \"long but cohesive\"\n\n\ +Valid targets per dimension:\n"; + +const GUIDE_FOOTER: &str = + "\nA metric pin re-fires once the value grows past it, and is flagged too-loose\n\ +(orphan) when the pin sits more than [suppression].pin_headroom above the value\n\ +it covers (default 10%) — so a pin can never silently mask a growing problem. A\n\ +targeted marker is also orphaned when no finding of its kind exists. Fix the\n\ +finding first; suppression is the last resort.\n"; + +/// Build the suppression guide as a string (so it can be tested): grammar, +/// per-dimension targets sourced from the shared vocabulary, and the rationale. +/// Operation: header + per-dimension blocks + footer via a closure. +pub(crate) fn suppression_guide() -> String { + let mut out = String::from(GUIDE_HEADER); + let dims = [ + Dimension::Iosp, + Dimension::Complexity, + Dimension::Dry, + Dimension::Srp, + Dimension::Coupling, + Dimension::TestQuality, + Dimension::Architecture, + ]; + dims.iter() + .for_each(|&dim| out.push_str(&dim_targets_block(dim))); + out.push_str(GUIDE_FOOTER); + out +} + +/// One dimension's block: its metric (pinnable) and boolean targets, or a +/// note that it is single-kind (bare `allow(dim)` only). +/// Operation: builds the lines from the shared vocabulary. +fn dim_targets_block(dim: Dimension) -> String { + let metrics = targets_of_kind(dim, TargetKind::Metric); + let booleans = targets_of_kind(dim, TargetKind::Boolean); + if metrics.is_empty() && booleans.is_empty() { + return format!(" {dim}: bare allow({dim}) only (single-kind)\n"); + } + let mut block = format!(" {dim}:\n"); + if !metrics.is_empty() { + block.push_str(&format!( + " metric (needs =N): {}\n", + metrics.join(", ") + )); + } + if !booleans.is_empty() { + block.push_str(&format!( + " boolean: {}\n", + booleans.join(", ") + )); + } + block +} + +/// The target names of `dim` whose kind is `kind`. +/// Operation: filter over the shared vocabulary. +fn targets_of_kind(dim: Dimension, kind: TargetKind) -> Vec<&'static str> { + target_names(dim) + .iter() + .copied() + .filter(|t| target_kind(dim, t) == Some(kind)) + .collect() +} + /// Handle the --explain command: print architecture-rule diagnostics for one file. /// Operation: orchestrates read, parse, compile, explain, render. // qual:api @@ -40,3 +122,6 @@ pub fn handle_explain(target: &Path, config: &Config) -> Result<(), i32> { print!("{}", report.render()); Ok(()) } + +#[cfg(test)] +mod tests; diff --git a/src/cli/explain/tests.rs b/src/cli/explain/tests.rs new file mode 100644 index 00000000..8d47c40a --- /dev/null +++ b/src/cli/explain/tests.rs @@ -0,0 +1,29 @@ +//! Tests for the `--explain allow` suppression guide. The guide is built from +//! the shared target vocabulary, so these pin the grammar + that each kind of +//! target surfaces for the right dimension. +use super::suppression_guide; + +#[test] +fn suppression_guide_covers_grammar_targets_and_rationale() { + let g = suppression_guide(); + // Grammar: metric value mandatory, reason mandatory. + assert!( + g.contains("qual:allow(dim, target=N)"), + "metric grammar line" + ); + assert!(g.contains("value REQUIRED"), "value-required note"); + assert!(g.contains("needs a reason"), "reason-required note"); + // Targets surface under the right dimension/kind. + assert!(g.contains("file_length"), "srp metric target"); + assert!(g.contains("god_struct"), "srp boolean target"); + assert!( + g.contains("max_instability"), + "coupling float metric target" + ); + assert!(g.contains("untested"), "test_quality target"); + // iosp is single-kind. + assert!(g.contains("bare allow(iosp)"), "iosp single-kind note"); + // The pin rationale (10% + last resort). + assert!(g.contains("10%"), "10% headroom rationale"); + assert!(g.contains("last resort"), "last-resort framing"); +} diff --git a/src/domain/findings/mod.rs b/src/domain/findings/mod.rs index 94c27930..2566e560 100644 --- a/src/domain/findings/mod.rs +++ b/src/domain/findings/mod.rs @@ -33,6 +33,6 @@ pub use dry::{ RepeatedMatchParticipant, }; pub use iosp::{CallLocation, IospFinding, LogicLocation}; -pub use orphan::OrphanSuppression; +pub use orphan::{OrphanKind, OrphanSuppression}; pub use srp::{ResponsibilityCluster, SrpFinding, SrpFindingDetails, SrpFindingKind}; pub use tq::{TqFinding, TqFindingKind}; diff --git a/src/domain/findings/orphan.rs b/src/domain/findings/orphan.rs index 2243c6cb..8c382ed6 100644 --- a/src/domain/findings/orphan.rs +++ b/src/domain/findings/orphan.rs @@ -1,26 +1,112 @@ //! Orphan-suppression Finding type. //! -//! Cross-cutting Finding produced when a `// qual:allow(...)` marker -//! fails to match any real finding inside its annotation window -//! (a stale or misplaced suppression). Lives in `domain::findings` +//! Cross-cutting Finding produced when a `// qual:allow(...)` marker should +//! be reported: it is *stale* (matched no finding in its window — a stale or +//! misplaced suppression) or *too-loose* (a metric pin sitting further above +//! the value it covers than `pin_headroom` allows). Lives in `domain::findings` //! alongside the per-dimension Finding types so the Reporter port can //! treat orphan rendering as a compile-time-required projection //! (`ReporterImpl::OrphanView` + `build_orphans`), preventing future //! reporters from silently omitting orphan output. -use crate::domain::Dimension; +use crate::domain::{Dimension, SuppressionTarget}; -/// A `// qual:allow(...)` marker that failed to match any finding in -/// its annotation window. Represents a stale or misplaced suppression. -#[derive(Debug, Clone, PartialEq, Eq)] +/// Why a `// qual:allow(...)` marker is being reported. A *stale* marker +/// matched no finding (or is malformed); a *too-loose* marker is a metric +/// pin parked further above the value it covers than `pin_headroom` allows. +/// The two render with different lead words so the author knows whether to +/// delete the marker or merely tighten its pin. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] +pub enum OrphanKind { + /// Marker matched no finding of its (dimension, target) — stale or + /// misplaced. Also used for malformed markers surfaced via the + /// invalid-marker side-channel. + #[default] + Stale, + /// A metric pin that *does* cover a finding, but sits more than + /// `pin_headroom` above that finding's value — tighten or remove. + PinTooLoose, +} + +impl OrphanKind { + /// Lead word for human reports: `stale` for an unmatched/malformed marker, + /// `too-loose` for a metric pin above its headroom. Centralised so every + /// reporter renders the same word for the same kind. + pub fn status_word(self) -> &'static str { + match self { + OrphanKind::Stale => "stale", + OrphanKind::PinTooLoose => "too-loose", + } + } + + /// Stable snake_case token for structured output (JSON/AI), so machine + /// consumers can branch on the remedy — `stale` → delete the marker, + /// `too_loose` → tighten the pin — without parsing the human message. + pub fn json_kind(self) -> &'static str { + match self { + OrphanKind::Stale => "stale", + OrphanKind::PinTooLoose => "too_loose", + } + } +} + +/// A `// qual:allow(...)` marker that should be reported: a stale/misplaced +/// suppression, or a metric pin that is looser than it needs to be. +/// +/// (No `Eq`: `target` carries a metric pin (`f64`), which is `PartialEq` only.) +#[derive(Debug, Clone, PartialEq)] pub struct OrphanSuppression { pub file: String, /// 1-based line of the marker (already shifted to the last line /// of the contiguous `//`-comment block containing the marker). pub line: usize, - /// Which dimensions the marker tried to suppress. Empty = wildcard - /// (bare `// qual:allow`). + /// Which dimensions the marker tried to suppress. Empty only for a + /// malformed marker surfaced via the invalid-marker side-channel (e.g. + /// unclosed parens); a real parsed `Suppression` always carries at least + /// one dimension, so this is non-empty for stale/too-loose orphans. pub dimensions: Vec, - /// Optional human-readable rationale attached to the marker. + /// The marker's target, when it was a *targeted* `allow(dim, target[=N])`. + /// Carried so reporters render which finding-kind is stale/too-loose + /// (`qual:allow(srp, file_length=400)`), not just the dimension — vital + /// when a file has several markers of the same dimension. + pub target: Option, + /// Optional human-readable rationale attached to the marker (for a + /// too-loose pin, this carries the tighten-to-~value advice instead). pub reason: Option, + /// Why the marker is being reported (stale vs too-loose pin). + pub kind: OrphanKind, +} + +impl OrphanSuppression { + /// The marker's target as a `qual:allow` argument — `"file_length=400"` + /// for a metric pin, `"god_struct"` for a boolean target, `None` for a + /// blanket/invalid marker. The structured form for JSON-style output. + pub fn target_spec(&self) -> Option { + self.target.as_ref().map(|t| match t.pin() { + Some(pin) => format!("{}={}", t.name(), fmt_pin(pin)), + None => t.name().to_string(), + }) + } + + /// The target rendered as a trailing argument for the `qual:allow(…)` + /// spec — `""` for a blanket/invalid marker, `", file_length=400"` for a + /// metric pin. Reporters append this to their dimension scope so a targeted + /// orphan names its finding-kind. + pub fn target_suffix(&self) -> String { + self.target_spec() + .map(|s| format!(", {s}")) + .unwrap_or_default() + } +} + +/// Render a pin without a trailing `.0` for whole numbers (mirrors the +/// orphan-detector's `fmt_num`). +fn fmt_pin(v: f64) -> String { + if v.fract() == 0.0 { + // `{:.0}` not `as i64`: a large finite pin (e.g. 1e30) would saturate + // the cast to i64::MAX and misreport the target. + format!("{v:.0}") + } else { + format!("{v}") + } } diff --git a/src/domain/mod.rs b/src/domain/mod.rs index ebe3ac9c..8a579ef3 100644 --- a/src/domain/mod.rs +++ b/src/domain/mod.rs @@ -16,6 +16,7 @@ pub mod score; pub mod severity; pub mod source_unit; pub mod suppression; +pub mod suppression_target; pub use analysis_data::AnalysisData; pub use dimension::Dimension; @@ -25,6 +26,7 @@ pub use score::PERCENTAGE_MULTIPLIER; pub use severity::Severity; pub use source_unit::SourceUnit; pub use suppression::Suppression; +pub use suppression_target::{target_kind, target_names, SuppressionTarget, TargetKind}; #[cfg(test)] mod tests; diff --git a/src/domain/suppression.rs b/src/domain/suppression.rs index 479ee320..93b94dd9 100644 --- a/src/domain/suppression.rs +++ b/src/domain/suppression.rs @@ -2,13 +2,15 @@ //! //! A `Suppression` is the parsed, framework-free representation of a //! `// qual:allow(…)` comment (or the legacy `// iosp:allow` form). -//! The actual comment parsing lives in the suppression-adapter -//! (`crate::findings` today, `src/adapters/suppression/` after Phase 4). +//! The actual comment parsing lives in `src/adapters/suppression/qual_allow.rs`; +//! `crate::findings::{Dimension, Suppression}` re-exports these domain types +//! for existing call sites. +use crate::domain::suppression_target::SuppressionTarget; use crate::domain::Dimension; /// A parsed suppression that applies on a specific source line. -#[derive(Debug, Clone, PartialEq, Eq)] +#[derive(Debug, Clone, PartialEq)] pub struct Suppression { /// Line number where the suppression comment appears (1-based). pub line: usize, @@ -16,12 +18,52 @@ pub struct Suppression { pub dimensions: Vec, /// Optional human-readable reason. pub reason: Option, + /// When `Some`, the suppression targets ONE finding-kind within its + /// (single) dimension — `allow(srp, file_length=400)` — rather than the + /// whole dimension. `None` is the blanket `allow(dim)` form. + pub target: Option, } impl Suppression { + /// Construct a blanket (whole-dimension) suppression — the `allow(dim)` + /// form with no target. Convenience for the many call sites that predate + /// targeted suppressions. + pub fn blanket(line: usize, dimensions: Vec, reason: Option) -> Self { + Self { + line, + dimensions, + reason, + target: None, + } + } + /// Check if this suppression covers a given dimension. /// An empty `dimensions` list covers all dimensions. pub fn covers(&self, dim: Dimension) -> bool { self.dimensions.is_empty() || self.dimensions.contains(&dim) } + + /// Whether this suppression silences `dim`'s `target_name` finding at the + /// given metric `value`. A blanket suppression (no target) silences every + /// finding of its dimension. A metric pin silences only while + /// `value <= pin` — above the pin it re-fires; a boolean target silences + /// by name. `value` is `None` for findings that carry no metric. + /// Operation: dimension + target dispatch, no own calls beyond `covers`. + pub fn suppresses(&self, dim: Dimension, target_name: &str, value: Option) -> bool { + if !self.covers(dim) { + return false; + } + match &self.target { + None => true, + Some(t) if t.name() == target_name => match t { + // A metric pin silences only while the finding's value stays + // at or below it; a finding that carries no value cannot be + // matched by a metric pin (so a metric target never silences + // a value-less finding). + SuppressionTarget::Metric { pin, .. } => value.is_some_and(|v| v <= *pin), + SuppressionTarget::Boolean { .. } => true, + }, + Some(_) => false, + } + } } diff --git a/src/domain/suppression_target.rs b/src/domain/suppression_target.rs new file mode 100644 index 00000000..f87acb86 --- /dev/null +++ b/src/domain/suppression_target.rs @@ -0,0 +1,169 @@ +//! Suppression *targets* — the vocabulary that lets `// qual:allow(dim, …)` +//! silence ONE finding-kind within a dimension instead of the whole +//! dimension. A target is named by its config field (for threshold metrics) +//! or its rule name (for boolean findings): +//! +//! - **Metric** targets carry a numeric threshold, so a pin value is +//! *mandatory*: `allow(srp, file_length=400)`. The suppression holds only +//! while the metric stays at or below the pin, and re-fires above it. +//! - **Boolean** targets are yes/no findings, so they take *no* value: +//! `allow(complexity, unsafe)`. +//! +//! This module is the single source of truth for which targets exist; the +//! per-dimension marking code consumes the same names. + +use crate::domain::Dimension; + +/// Whether a target carries a numeric threshold (a pin value is mandatory) +/// or is a yes/no finding-kind (no value allowed). +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum TargetKind { + /// Threshold metric — `allow(dim, name=N)` requires the value `N`. + Metric, + /// Boolean finding-kind — `allow(dim, name)` takes no value. + Boolean, +} + +/// A parsed `allow(dim, target[, =N])` target. Modeled as a sum type so the +/// "metric ⇒ has a pin, boolean ⇒ has no pin" invariant is unrepresentable +/// otherwise: there is no way to build a `Boolean` carrying a pin or a +/// `Metric` without one. Construct via the parser; read via `name()`/`pin()`. +#[derive(Debug, Clone, PartialEq)] +pub enum SuppressionTarget { + /// Threshold metric (config field name) with its mandatory pinned ceiling. + /// Silences only while the finding's value is `<= pin`. + Metric { name: String, pin: f64 }, + /// Boolean finding-kind (rule name); silences by name, carries no value. + Boolean { name: String }, +} + +impl SuppressionTarget { + /// The target's name (config field for metrics, rule name for booleans). + pub fn name(&self) -> &str { + match self { + Self::Metric { name, .. } | Self::Boolean { name } => name, + } + } + + /// The pinned ceiling for a metric target; `None` for a boolean target. + pub fn pin(&self) -> Option { + match self { + Self::Metric { pin, .. } => Some(*pin), + Self::Boolean { .. } => None, + } + } +} + +/// Resolve a `(dimension, target-name)` pair to its kind, or `None` when the +/// name is not a known target of that dimension. Keys are config field names +/// (metrics) and rule names (booleans). +pub fn target_kind(dim: Dimension, name: &str) -> Option { + use Dimension as D; + use TargetKind::{Boolean, Metric}; + match dim { + D::Complexity => match name { + "max_cognitive" | "max_cyclomatic" | "max_nesting_depth" | "max_function_lines" => { + Some(Metric) + } + "magic_numbers" | "error_handling" | "unsafe" => Some(Boolean), + _ => None, + }, + D::Srp => match name { + "file_length" | "max_independent_clusters" | "max_parameters" => Some(Metric), + // god_struct + the structural binary checks (BTC/SLM/NMS) — the + // latter so an orphan-rule-forced or API-stable case can be named. + "god_struct" | "btc" | "slm" | "nms" => Some(Boolean), + _ => None, + }, + D::Coupling => match name { + "max_fan_in" | "max_fan_out" | "max_instability" => Some(Metric), + // `cycle` is NOT here: circular dependencies are not suppressible + // via allow(coupling) (they always count toward the score). `sdp` + // plus the structural binary checks (OI/SIT/DEH/IET) — the latter + // so a genuinely-unfixable case (orphan rules, plugin downcast, + // single-impl API boundary) can be named. + "sdp" | "oi" | "sit" | "deh" | "iet" => Some(Boolean), + _ => None, + }, + D::Dry => match name { + // dead_code is NOT here: DRY-002 is excluded via `qual:api` / + // `qual:test_helper`, not via `allow(dry)`. + "duplicate" | "fragment" | "boilerplate" | "wildcard_imports" | "repeated_matches" => { + Some(Boolean) + } + _ => None, + }, + D::Architecture => match name { + // The top-level rule family (the `architecture//…` segment). + "call_parity" | "forbidden" | "layer" | "pattern" | "trait_contract" => Some(Boolean), + _ => None, + }, + D::TestQuality => match name { + "no_assertion" | "no_sut" | "untested" | "uncovered" | "untested_logic" => { + Some(Boolean) + } + _ => None, + }, + // iosp is single-kind, so only the bare `allow(iosp)` form exists. + D::Iosp => None, + } +} + +/// All valid target names for a dimension, used to build the "unknown target" +/// error so the author sees exactly what they may write (this is what stops +/// the agent inventing a non-existent target like `srp_params`). +pub fn target_names(dim: Dimension) -> &'static [&'static str] { + use Dimension as D; + match dim { + D::Complexity => &[ + "max_cognitive", + "max_cyclomatic", + "max_nesting_depth", + "max_function_lines", + "magic_numbers", + "error_handling", + "unsafe", + ], + D::Srp => &[ + "file_length", + "max_independent_clusters", + "max_parameters", + "god_struct", + "btc", + "slm", + "nms", + ], + D::Coupling => &[ + "max_fan_in", + "max_fan_out", + "max_instability", + "sdp", + "oi", + "sit", + "deh", + "iet", + ], + D::Dry => &[ + "duplicate", + "fragment", + "boilerplate", + "wildcard_imports", + "repeated_matches", + ], + D::Architecture => &[ + "call_parity", + "forbidden", + "layer", + "pattern", + "trait_contract", + ], + D::TestQuality => &[ + "no_assertion", + "no_sut", + "untested", + "uncovered", + "untested_logic", + ], + D::Iosp => &[], + } +} diff --git a/src/domain/tests/suppression.rs b/src/domain/tests/suppression.rs index 601f35ad..6d6a2d83 100644 --- a/src/domain/tests/suppression.rs +++ b/src/domain/tests/suppression.rs @@ -1,4 +1,114 @@ -use crate::domain::{Dimension, Suppression}; +use crate::domain::{target_kind, target_names, Dimension, Suppression, SuppressionTarget}; + +fn metric(dim: Dimension, name: &str, pin: f64) -> Suppression { + Suppression { + line: 1, + dimensions: vec![dim], + reason: Some("r".into()), + target: Some(SuppressionTarget::Metric { + name: name.into(), + pin, + }), + } +} + +#[test] +fn metric_pin_suppresses_at_or_below_and_refires_above() { + let s = metric(Dimension::Srp, "file_length", 400.0); + assert!( + s.suppresses(Dimension::Srp, "file_length", Some(400.0)), + "at the pin" + ); + assert!( + s.suppresses(Dimension::Srp, "file_length", Some(399.0)), + "below the pin" + ); + assert!( + !s.suppresses(Dimension::Srp, "file_length", Some(401.0)), + "above → re-fires" + ); +} + +#[test] +fn metric_pin_never_silences_a_value_less_finding() { + // The whole point of the redesign: a Metric target queried with no value + // fails closed (does not suppress). A `map_or(true, …)` regression here + // would silently over-suppress. + let s = metric(Dimension::Srp, "file_length", 400.0); + assert!(!s.suppresses(Dimension::Srp, "file_length", None)); +} + +#[test] +fn metric_pin_only_matches_its_own_target_and_dimension() { + let s = metric(Dimension::Srp, "file_length", 400.0); + assert!( + !s.suppresses(Dimension::Srp, "max_parameters", Some(1.0)), + "wrong target" + ); + assert!( + !s.suppresses(Dimension::Complexity, "file_length", Some(1.0)), + "wrong dim" + ); +} + +#[test] +fn boolean_target_silences_by_name_regardless_of_value() { + let s = Suppression { + line: 1, + dimensions: vec![Dimension::Srp], + reason: Some("r".into()), + target: Some(SuppressionTarget::Boolean { + name: "god_struct".into(), + }), + }; + assert!(s.suppresses(Dimension::Srp, "god_struct", None)); + assert!(s.suppresses(Dimension::Srp, "god_struct", Some(9.0))); + assert!( + !s.suppresses(Dimension::Srp, "file_length", Some(1.0)), + "wrong target" + ); +} + +#[test] +fn blanket_suppression_silences_every_finding_of_its_dimension() { + let s = Suppression { + line: 1, + dimensions: vec![Dimension::Dry], + reason: None, + target: None, + }; + assert!(s.suppresses(Dimension::Dry, "duplicate", None)); + assert!(s.suppresses(Dimension::Dry, "anything", Some(5.0))); + assert!( + !s.suppresses(Dimension::Srp, "duplicate", None), + "wrong dim" + ); +} + +#[test] +fn target_kind_and_target_names_agree_for_every_dimension() { + // The two hand-maintained vocabularies must not drift: every name in + // `target_names(dim)` must resolve via `target_kind(dim, name)`, else a + // valid-looking target would be rejected by the parser or unmatchable by + // the orphan detector. + for dim in [ + Dimension::Iosp, + Dimension::Complexity, + Dimension::Dry, + Dimension::Srp, + Dimension::Coupling, + Dimension::TestQuality, + Dimension::Architecture, + ] { + for name in target_names(dim) { + assert!( + target_kind(dim, name).is_some(), + "{dim:?} lists target {name:?} but target_kind doesn't classify it" + ); + } + assert!(target_kind(dim, "definitely_not_a_target").is_none()); + } +} #[test] fn empty_dimensions_list_covers_everything() { @@ -6,6 +116,7 @@ fn empty_dimensions_list_covers_everything() { line: 1, dimensions: vec![], reason: None, + target: None, }; assert!(s.covers(Dimension::Iosp)); assert!(s.covers(Dimension::Complexity)); @@ -18,6 +129,7 @@ fn specific_dimensions_only_cover_those_listed() { line: 1, dimensions: vec![Dimension::Iosp], reason: None, + target: None, }; assert!(s.covers(Dimension::Iosp)); assert!(!s.covers(Dimension::Complexity)); @@ -30,6 +142,7 @@ fn multiple_dimensions_cover_all_listed() { line: 1, dimensions: vec![Dimension::Iosp, Dimension::Architecture], reason: Some("migration in progress".into()), + target: None, }; assert!(s.covers(Dimension::Iosp)); assert!(s.covers(Dimension::Architecture)); diff --git a/src/lib.rs b/src/lib.rs index 04398d26..ae800426 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -39,58 +39,123 @@ fn sort_by_effort(results: &mut [crate::adapters::analyzers::iosp::FunctionAnaly } /// Entry point: parse CLI, load config, run analysis, check gates. +/// Composition root: parse args, then run an early mode or the full analysis. +/// Integration: arg parse + mode dispatch (early-exit branches live in closures +/// so this stays pure orchestration). pub fn run() -> Result<(), i32> { - let mut args: Vec = std::env::args().collect(); - // Support `cargo qual` invocation: cargo passes "qual" as first arg + let cli = parse_cli_args(); + try_preconfig_modes(&cli).unwrap_or_else(|| run_configured(&cli)) +} + +/// Parse CLI args, supporting the `cargo qual` alias and normalising the path. +/// Integration: arg fixups + parse, delegating the logic to operations. +fn parse_cli_args() -> Cli { + let args = strip_cargo_qual_arg(std::env::args().collect()); + let mut cli = Cli::parse_from(args); + cli.path = normalize_path(&cli.path); + cli +} + +/// Drop the leading `qual` arg cargo injects for a `cargo qual` invocation. +/// Operation: conditional removal. +fn strip_cargo_qual_arg(mut args: Vec) -> Vec { if args.len() > 1 && args[1] == "qual" { args.remove(1); } - let mut cli = Cli::parse_from(args); - // Normalize Windows backslash paths to forward slashes - let normalized = cli.path.to_string_lossy().replace('\\', "/"); - cli.path = std::path::PathBuf::from(normalized); + args +} + +/// Normalise Windows backslash paths to forward slashes. +/// Operation: string replace. +fn normalize_path(path: &std::path::Path) -> std::path::PathBuf { + std::path::PathBuf::from(path.to_string_lossy().replace('\\', "/")) +} +/// Early modes that need no loaded config (`--init`, `--completions`); returns +/// `Some(result)` when one handled the run. Operation: mode checks. +fn try_preconfig_modes(cli: &Cli) -> Option> { if cli.init { let content = config::init::prepare_init_content(&cli.path); - return handle_init(&content); + return Some(handle_init(&content)); } if let Some(shell) = cli.completions { handle_completions(shell); - return Ok(()); + return Some(Ok(())); } + None +} - let output_format = determine_output_format(&cli); - let config = setup_config(&cli)?; +/// Load config, then dispatch a config-dependent mode or the full analysis. +/// Integration: config load + mode dispatch. +fn run_configured(cli: &Cli) -> Result<(), i32> { + let config = setup_config(cli)?; + try_postconfig_modes(cli, &config).unwrap_or_else(|| run_full_analysis(cli, &config)) +} +/// Config-dependent early modes (`--explain`, `--watch`); `Some` when handled. +/// Operation: mode checks. +fn try_postconfig_modes(cli: &Cli, config: &config::Config) -> Option> { if let Some(ref target) = cli.explain { - return crate::cli::explain::handle_explain(target, &config); + // `--explain allow` prints the suppression guide instead of explaining + // a file's architecture rules. + if target.as_os_str() == "allow" { + crate::cli::explain::explain_allow(); + return Some(Ok(())); + } + return Some(crate::cli::explain::handle_explain(target, config)); } - if cli.watch { - return watch::run_watch_mode(&cli.path, || { + let output_format = determine_output_format(cli); + return Some(watch::run_watch_mode(&cli.path, || { app::analyze_and_output( &cli.path, - &config, + config, &output_format, cli.verbose, cli.suggestions, ); - }); + })); } + None +} + +/// The core pipeline: collect → parse → analyze → report → baseline → gates. +/// Integration: orchestrates the analysis phases. +fn run_full_analysis(cli: &Cli, config: &config::Config) -> Result<(), i32> { + let files = adapters::source::filesystem::collect_filtered_files(&cli.path, config); + let Some(analysis) = collect_and_analyze(cli, config, &files) else { + return Ok(()); + }; + report_analysis(cli, &analysis, config); + handle_baseline_and_compare(cli, &analysis)?; + apply_exit_gates(cli, config, &analysis.summary) +} - let files = adapters::source::filesystem::collect_filtered_files(&cli.path, &config); +/// Read + analyze `files`, applying effort sorting; `None` (with a message) when +/// there are no files to analyze. Operation: empty-guard + parse + analyze. +fn collect_and_analyze( + cli: &Cli, + config: &config::Config, + files: &[std::path::PathBuf], +) -> Option { if files.is_empty() { eprintln!("No Rust source files found in {}", cli.path.display()); - return Ok(()); + return None; } - - let parsed = adapters::source::filesystem::read_and_parse_files(&files, &cli.path); - let mut analysis = app::run_analysis(parsed, &config); + let parsed = adapters::source::filesystem::read_and_parse_files(files, &cli.path); + let mut analysis = app::run_analysis(parsed, config); if cli.sort_by_effort { sort_by_effort(&mut analysis.results); } + Some(analysis) +} + +/// Render the analysis: either the flat findings list or the full report. +/// Operation: format selection. +fn report_analysis(cli: &Cli, analysis: &report::AnalysisResult, config: &config::Config) { + let output_format = determine_output_format(cli); if cli.findings { - let entries = crate::report::findings_list::collect_all_findings(&analysis); + let entries = crate::report::findings_list::collect_all_findings(analysis); if entries.is_empty() { println!("No findings."); } else { @@ -98,14 +163,18 @@ pub fn run() -> Result<(), i32> { } } else { app::output_results( - &analysis, + analysis, &output_format, cli.verbose, cli.suggestions, - &config, + config, ); } +} +/// Apply `--save-baseline` and `--compare` (failing on regression when asked). +/// Operation: optional baseline write + compare. +fn handle_baseline_and_compare(cli: &Cli, analysis: &report::AnalysisResult) -> Result<(), i32> { cli.save_baseline .as_ref() .map(|p| handle_save_baseline(p, &analysis.results, &analysis.summary)) @@ -116,6 +185,5 @@ pub fn run() -> Result<(), i32> { return Err(1); } } - - apply_exit_gates(&cli, &config, &analysis.summary) + Ok(()) } diff --git a/src/ports/tests/suppression_parser.rs b/src/ports/tests/suppression_parser.rs index 47a00aff..9992494b 100644 --- a/src/ports/tests/suppression_parser.rs +++ b/src/ports/tests/suppression_parser.rs @@ -31,6 +31,7 @@ fn fake_parser_returns_injected_suppressions() { line: FIXTURE_LINE, dimensions: vec![Dimension::Architecture], reason: Some("migration".into()), + target: None, }; let parser = FakeParser { returns: vec![sup.clone()], @@ -40,7 +41,7 @@ fn fake_parser_returns_injected_suppressions() { assert_eq!(parsed, vec![sup]); } -// qual:allow(test_quality) reason: "contract test verifying Display on Error variants does not call a SUT method by design" +// qual:allow(test_quality, no_sut) reason: "contract test verifying Display on Error variants does not call a SUT method by design" #[test] fn parse_error_variants_carry_diagnostic_information() { let e = SuppressionParseError::Malformed {
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