Add Lua 5.5 support and fix Zig 0.16 compatibility

build.zig

@@ -27,7 +27,7 @@ pub fn build(b: *Build) void {
         std.debug.panic("Luau does not support compiling or loading shared modules", .{});
     }
 
-    if (lua_user_h != null and (lang == .luajit or lang == .luau)) {
+    if (lua_user_h != null and (lang == .luajit or lang == .luau or lang == .lua55)) {
         std.debug.panic("Only basic lua supports a user provided header file", .{});
     }
 
@@ -58,6 +58,7 @@ pub fn build(b: *Build) void {
             .lua52 => zlua.linkSystemLibrary("lua5.2", .{ .preferred_link_mode = link_mode }),
             .lua53 => zlua.linkSystemLibrary("lua5.3", .{ .preferred_link_mode = link_mode }),
             .lua54 => zlua.linkSystemLibrary("lua5.4", .{ .preferred_link_mode = link_mode }),
+            .lua55 => zlua.linkSystemLibrary("lua5.5", .{ .preferred_link_mode = link_mode }),
             .luajit => zlua.linkSystemLibrary("luajit", .{ .preferred_link_mode = link_mode }),
             .luau => @panic("luau not supported for system lua"),
         }

build.zig.zon

@@ -33,6 +33,12 @@
             .lazy = true,
         },
 
+        .lua55 = .{
+            .url = "https://www.lua.org/ftp/lua-5.5.0.tar.gz",
+            .hash = "N-V-__8AAGuAFQAFQL34FRuOIGC9klkZq44uTTan4cUS9vas",
+            .lazy = true,
+        },
+
         .luajit = .{
             .url = "https://github.com/LuaJIT/LuaJIT/archive/c525bcb9024510cad9e170e12b6209aedb330f83.tar.gz",
             .hash = "N-V-__8AACcgQgCuLYTPzCp6pnBmFJHyG77RAtM13hjOfTaG",

build/lua.zig

@@ -10,6 +10,7 @@ pub const Language = enum {
     lua52,
     lua53,
     lua54,
+    lua55,
     luajit,
     luau,
 };
@@ -38,6 +39,7 @@ pub fn configure(
         .lua52 => .{ .major = 5, .minor = 2, .patch = 4 },
         .lua53 => .{ .major = 5, .minor = 3, .patch = 6 },
         .lua54 => .{ .major = 5, .minor = 4, .patch = 8 },
+        .lua55 => .{ .major = 5, .minor = 5, .patch = 0 },
         else => unreachable,
     };
 
@@ -83,6 +85,7 @@ pub fn configure(
         .lua52 => &lua_52_source_files,
         .lua53 => &lua_53_source_files,
         .lua54 => &lua_54_source_files,
+        .lua55 => &lua_55_source_files,
         else => unreachable,
     };
 
@@ -169,3 +172,10 @@ const lua_54_source_files = lua_base_source_files ++ [_][]const u8{
     "src/lcorolib.c",
     "src/lutf8lib.c",
 };
+
+const lua_55_source_files = lua_base_source_files ++ [_][]const u8{
+    "src/ldo.c",
+    "src/lctype.c",
+    "src/lcorolib.c",
+    "src/lutf8lib.c",
+};

build/luajit.zig

@@ -122,9 +122,6 @@ pub fn configure(b: *Build, target: Build.ResolvedTarget, optimize: std.builtin.
 
     const buildvm_os_c_flags: []const []const u8 = if (target.result.os.tag == .windows)
         &.{"-DLUAJIT_OS=1"}
-    else if (target.result.os.tag.isDarwin())
-        // FIXME: this can be removed once https://codeberg.org/ziglang/zig/issues/30669 is successfully resolved
-        &.{"-DLJ_NO_UNWIND=1"}
     else
         &.{};
 
@@ -208,7 +205,6 @@ pub fn configure(b: *Build, target: Build.ResolvedTarget, optimize: std.builtin.
     library.is_linking_libc = true;
 
     lib.addCMacro("LUAJIT_UNWIND_EXTERNAL", "");
-
     lib.linkSystemLibrary("unwind", .{});
 
     library.root_module.addIncludePath(upstream.path("src"));

build/patch.zig

@@ -1,7 +1,7 @@
 //! A simple script to apply a patch to a file
 //! Does minimal validation and is just enough for patching Lua 5.1
 
-pub fn main() !void {
+pub fn main(init: std.process.Init.Minimal) !void {
     var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
     const allocator = arena.allocator();
@@ -10,12 +10,16 @@ pub fn main() !void {
     defer threaded.deinit();
     const io = threaded.io();
 
-    const args = try std.process.argsAlloc(allocator);
-    if (args.len != 4) @panic("Wrong number of arguments");
+    var iter = init.args.iterate();
 
-    const file_path = args[1];
-    const patch_file_path = args[2];
-    const output_path = args[3];
+    // Skip executable name
+    _ = iter.next();
+
+    const file_path = iter.next() orelse @panic("Missing file_path argument");
+    const patch_file_path = iter.next() orelse @panic("Missing patch_file_path argument");
+    const output_path = iter.next() orelse @panic("Missing output_path argument");
+
+    if (iter.next() != null) @panic("Too many arguments");
 
     const patch_file = patch_file: {
         const patch_file = try Io.Dir.cwd().openFile(io, patch_file_path, .{ .mode = .read_only });

makefile

@@ -6,6 +6,7 @@ test_zig_nightly:
 	zig build test --summary failures -Dlang=lua52
 	zig build test --summary failures -Dlang=lua53
 	zig build test --summary failures -Dlang=lua54
+	zig build test --summary failures -Dlang=lua55
 	zig build test --summary failures -Dlang=luau
 
 	zig build install-example-interpreter
@@ -21,6 +22,7 @@ test_zig_stable:
 	zig build test --summary failures -Dlang=lua52
 	zig build test --summary failures -Dlang=lua53
 	zig build test --summary failures -Dlang=lua54
+	zig build test --summary failures -Dlang=lua55
 	zig build test --summary failures -Dlang=luau
 
 	zig build install-example-interpreter

readme.md

@@ -2,7 +2,7 @@
 [![shield showing current tests status](https://github.com/natecraddock/ziglua/actions/workflows/tests.yml/badge.svg)](https://github.com/natecraddock/ziglua/actions/workflows/tests.yml)
 [![Discord](https://img.shields.io/discord/1196908820140671077?style=flat&logo=discord)](https://discord.com/invite/XpZqDFvAtK)
 
-Zig bindings for the [Lua C API](https://www.lua.org/manual/5.4/manual.html#4). Ziglua currently supports the latest releases of Lua 5.1, 5.2, 5.3, 5.4, and [Luau](https://luau-lang.org).
+Zig bindings for the [Lua C API](https://www.lua.org/manual/5.4/manual.html#4). Ziglua currently supports the latest releases of Lua 5.1, 5.2, 5.3, 5.4, 5.5, [LuaJIT](https://luajit.org) and [Luau](https://luau-lang.org).
 
 Ziglua can be used in two ways, either
 * **embedded** to statically embed the Lua VM in a Zig program,