Class: Shirobai::Cop::Lint::Void

Inherits:
RuboCop::Cop::Base
  • Object
show all
Extended by:
RuboCop::Cop::AutoCorrector
Defined in:
lib/shirobai/cop/lint/void.rb

Overview

Drop-in Rust reimplementation of ‘Lint/Void`.

Rust parses the source and replicates stock’s statement-position analysis: parser ‘begin`-equivalent sequences (multi-statement bodies, parentheses, keyword `begin`), single-expression block bodies (`on_block`) and ensure branches (`on_ensure`), with the `in_void_context?` parents (`initialize`/setter defs, `each`/`tap` blocks, `for` bodies, `ensure` branches) and the each-block operator suppression. Every offense category (operator / variable / constant / literal / `self` / `defined?` / lambda-or-proc / nonmutating method) carries its stock message and its correction as a Rust-computed replace + remove pair; the no-correction cases (conditional branch bodies, assignment-method defs) come back with both ranges empty so the corrector block still runs and stays empty, exactly like stock’s bail-out paths. Ruby supplies the ‘CheckForMethodsWithNoSideEffects` flag and applies the ranges. Offenses come from the per-file bundled run (`Shirobai::Dispatch`); the config is one boolean, so this cop is always bundle-eligible.

Constant Summary collapse

BINARY_OPERATORS =

Referenced by the vendor spec (‘described_class::BINARY_OPERATORS`).

%i[* / % + - == === != < > <= >= <=>].freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.badge ⇒ Object 



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# File 'lib/shirobai/cop/lint/void.rb', line 31

def self.badge = RuboCop::Cop::Badge.parse("Lint/Void")

.bundle_args(config) ⇒ Object

Packed args for the bundled run: ‘[check_for_methods_with_no_side_effects]`.



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# File 'lib/shirobai/cop/lint/void.rb', line 34

def self.bundle_args(config)
  [!!config.for_badge(badge)["CheckForMethodsWithNoSideEffects"]]
end

.cop_name ⇒ Object 



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# File 'lib/shirobai/cop/lint/void.rb', line 30

def self.cop_name = "Lint/Void"

Instance Method Details

#on_new_investigation ⇒ Object 



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# File 'lib/shirobai/cop/lint/void.rb', line 38

def on_new_investigation
  buffer = processed_source.buffer

  offenses = Dispatch.offenses_for(processed_source, config, :void)
  off = SourceOffsets.for(processed_source.raw_source)
  offenses.each do |start, fin, message, rep_start, rep_end, replacement, rem_start, rem_end|
    range = Parser::Source::Range.new(buffer, off[start], off[fin])
    # Stock yields the corrector block for every offense (the
    # uncorrectable cases simply leave it empty).
    add_offense(range, message: message) do |corrector|
      if rep_end > rep_start
        corrector.replace(Parser::Source::Range.new(buffer, off[rep_start], off[rep_end]), replacement)
      end
      if rem_end > rem_start
        corrector.remove(Parser::Source::Range.new(buffer, off[rem_start], off[rem_end]))
      end
    end
  end
end