Luacheck documentation

Contents:

• List of warnings
  • Global variables (1xx)
    • Read-only globals
    • Implicitly defined globals
    • Modules
  • Unused variables (2xx) and values (3xx)
    • “Unused hint” (214)
    • Unused values and uninitialized variables
    • Secondary values and variables
  • Shadowing declarations (4xx)
  • Control flow and data flow issues (5xx)
    • Unreachable code
    • Unused labels
    • Unbalanced assignments
    • Empty blocks
    • Empty statements
    • Cyclomatic complexity
    • Reversed numeric for loops
    • Error-prone and Unnecessary Negations
  • Formatting issues (6xx)
    • Whitespace issues
    • Line length limits
• Command line interface
  • Command line options
  • Patterns
  • Defining extra globals and fields
  • Sets of standard globals
  • Formatters
  • Caching
  • Stable interface for editor plugins and tools
• Configuration file
  • Config options
  • Custom sets of globals
  • Per-file and per-path overrides
  • Default per-path std overrides
• Inline options
• Luacheck module
  • Report format

This is documentation for 0.26.0 version of Luacheck, a linter for Lua.