Class: RuboCop::Cop::Lint::MissingCopEnableDirective

Inherits:
Base
  • Object
show all
Includes:
RangeHelp
Defined in:
lib/rubocop/cop/lint/missing_cop_enable_directive.rb

Overview

This cop checks that there is an `# rubocop:enable …` statement after a `# rubocop:disable …` statement. This will prevent leaving cop disables on wide ranges of code, that latter contributors to a file wouldn't be aware of.

Examples:

# Lint/MissingCopEnableDirective:
#   MaximumRangeSize: .inf

# good
# rubocop:disable Layout/SpaceAroundOperators
x= 0
# rubocop:enable Layout/SpaceAroundOperators
# y = 1
# EOF

# bad
# rubocop:disable Layout/SpaceAroundOperators
x= 0
# EOF
# Lint/MissingCopEnableDirective:
#   MaximumRangeSize: 2

# good
# rubocop:disable Layout/SpaceAroundOperators
x= 0
# With the previous, there are 2 lines on which cop is disabled.
# rubocop:enable Layout/SpaceAroundOperators

# bad
# rubocop:disable Layout/SpaceAroundOperators
x= 0
x += 1
# Including this, that's 3 lines on which the cop is disabled.
# rubocop:enable Layout/SpaceAroundOperators

Constant Summary collapse

MSG = 
'Re-enable %<cop>s cop with `# rubocop:enable` after ' \
'disabling it.'
MSG_BOUND = 
'Re-enable %<cop>s cop within %<max_range>s lines after ' \
'disabling it.'

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

Instance Method Summary collapse

Methods inherited from Base

#add_global_offense, #add_offense, autocorrect_incompatible_with, badge, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, joining_forces, lint?, match?, #offenses, #on_investigation_end, #on_other_file, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #correctable?, #disable_uncorrectable?, #safe_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

silence_warnings

Constructor Details

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

Instance Method Details

#on_new_investigation ⇒ Object

rubocop:disable Metrics/AbcSize


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

def on_new_investigation
  max_range = cop_config['MaximumRangeSize']
  processed_source.disabled_line_ranges.each do |cop, line_ranges|
    line_ranges.each do |line_range|
      # This has to remain a strict inequality to handle
      # the case when max_range is Float::INFINITY
      next if line_range.max - line_range.min < max_range + 2

      range = source_range(processed_source.buffer,
                           line_range.min,
                           (0..0))

      add_offense(range, message: message(max_range: max_range, cop: cop))
    end
  end
end