nilcheck

A static analysis tool for Go that detects potential nil pointer dereferences.

Features

• Identifies pointer dereferences without nil checks
• Detects unsafe access of nil struct pointers
• Finds potential issues with slices containing nil pointers
• Analyzes method calls on nil receivers
• Caches results for better performance

What's next

• golangci-lint support

Installation

go install github.com/antiartificial/nilcheck@latest

Usage

nilcheck [flags] [packages]

Flags

• -pkgs: Comma-separated list of packages to analyze
• -funcs: Comma-separated list of functions to analyze
• -cache: Path to cache file (default: .nilcheck_cache.json)

Examples

# Analyze a specific package
nilcheck -pkgs=main ./...

# Analyze specific functions
nilcheck -funcs=main.main,GetUsers ./...

# Custom cache location
nilcheck -cache=.custom_cache.json ./...

Development

# Build
go build

# Run tests
go test -v ./...

# Clean cache
rm .nilcheck_cache.json

License

MIT