Class: RuboCop::Cop::Lint::UnneededCopEnableDirective

Inherits:
Cop
  • Object
show all
Includes:
RangeHelp, SurroundingSpace
Defined in:
lib/rubocop/cop/lint/unneeded_cop_enable_directive.rb

Overview

This cop detects instances of rubocop:enable comments that can be removed.

When comment enables all cops at once ‘rubocop:enable all` that cop checks whether any cop was actually enabled.

Examples:

# bad
foo = 1
# rubocop:enable Metrics/LineLength

# good
foo = 1
# bad
# rubocop:disable Metrics/LineLength
baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaarrrrrrrrrrrrr
# rubocop:enable Metrics/LineLength
baz
# rubocop:enable all

# good
# rubocop:disable Metrics/LineLength
baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaarrrrrrrrrrrrr
# rubocop:enable all
baz

Constant Summary collapse

MSG = 
'Unnecessary enabling of %<cop>s.'.freeze

Constants included from SurroundingSpace

SurroundingSpace::NO_SPACE_COMMAND, SurroundingSpace::SPACE_COMMAND

Constants included from Util

Util::LITERAL_REGEX

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offense, all, autocorrect_incompatible_with, badge, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, #correct, department, #duplicate_location?, #excluded_file?, #find_location, #highlights, inherited, #initialize, #join_force?, lint?, match?, #message, #messages, non_rails, #parse, qualified_cop_name, #relevant_file?, #target_rails_version, #target_ruby_version

Methods included from AST::Sexp

#s

Methods included from NodePattern::Macros

#def_node_matcher, #def_node_search, #node_search, #node_search_all, #node_search_body, #node_search_first

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, comment_line?, double_quotes_required?, escape_string, first_part_of_call_chain, interpret_string_escapes, line_range, needs_escaping?, on_node, parentheses?, same_line?, to_string_literal, to_supported_styles, tokens

Methods included from PathUtil

absolute?, hidden_dir?, hidden_file_in_not_hidden_dir?, match_path?, pwd, relative_path, reset_pwd, smart_path

Constructor Details

This class inherits a constructor from RuboCop::Cop::Cop

Instance Method Details

#autocorrect(comment_and_name) ⇒ Object 



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# File 'lib/rubocop/cop/lint/unneeded_cop_enable_directive.rb', line 54

def autocorrect(comment_and_name)
  lambda do |corrector|
    corrector.remove(range_with_comma(*comment_and_name))
  end
end

#investigate(processed_source) ⇒ Object 



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# File 'lib/rubocop/cop/lint/unneeded_cop_enable_directive.rb', line 41

def investigate(processed_source)
  return if processed_source.blank?

  offenses = processed_source.comment_config.extra_enabled_comments
  offenses.each do |comment, name|
    add_offense(
      [comment, name],
      location: range_of_offense(comment, name),
      message: format(MSG, cop: all_or_name(name))
    )
  end
end