Sha256: 2cd9a61deb2075141f07e1cfbc1cd6e49f110b85767aac6c6929bfb43594a711

Contents?: true

Size: 1.06 KB

Versions: 13

Compression:

Stored size: 1.06 KB

Contents

# encoding: utf-8
# frozen_string_literal: true

module RuboCop
  module Cop
    module Lint
      # This cop checks for underscore-prefixed variables that are actually
      # used.
      class UnderscorePrefixedVariableName < Cop
        MSG = 'Do not use prefix `_` for a variable that is used.'.freeze

        def join_force?(force_class)
          force_class == VariableForce
        end

        def after_leaving_scope(scope, _variable_table)
          scope.variables.each_value do |variable|
            check_variable(variable)
          end
        end

        def check_variable(variable)
          return unless variable.should_be_unused?
          return if variable.references.empty?
          return if variable.references.none?(&:explicit?)

          node = variable.declaration_node

          location = if node.type == :match_with_lvasgn
                       node.children.first.source_range
                     else
                       node.loc.name
                     end

          add_offense(nil, location)
        end
      end
    end
  end
end

Version data entries

13 entries across 13 versions & 2 rubygems

Version Path
fluent-plugin-detect-memb-exceptions-0.0.2 vendor/bundle/ruby/2.0.0/gems/rubocop-0.42.0/lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
fluent-plugin-detect-memb-exceptions-0.0.1 vendor/bundle/ruby/2.0.0/gems/rubocop-0.42.0/lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.42.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.41.2 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.41.1 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.41.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.40.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.39.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.38.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.37.2 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.37.1 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.37.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb
rubocop-0.36.0 lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb