Class: RuboCop::Cop::Style::ArrayIntersectWithSingleElement

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/style/array_intersect_with_single_element.rb

Overview

Use ‘include?(element)` instead of `intersect?()`.

Examples:

# bad
array.intersect?([element])

# good
array.include?(element)

Constant Summary collapse

MSG = 
'Use `include?(element)` instead of `intersect?([element])`.'
RESTRICT_ON_SEND = 
%i[intersect?].freeze

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

Methods inherited from Base

#active_support_extensions_enabled?, #add_global_offense, #add_offense, #always_autocorrect?, autocorrect_incompatible_with, badge, #begin_investigation, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #contextual_autocorrect?, #cop_config, #cop_name, cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, #inspect, joining_forces, lint?, match?, #message, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #parse, #parser_engine, #ready, #relevant_file?, requires_gem, #string_literals_frozen_by_default?, support_autocorrect?, support_multiple_source?, #target_gem_version, #target_rails_version, #target_ruby_version

Methods included from ExcludeLimit

#exclude_limit

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #autocorrect_with_disable_uncorrectable?, #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_send(node) ⇒ Object Also known as: on_csend 



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# File 'lib/rubocop/cop/style/array_intersect_with_single_element.rb', line 29

def on_send(node)
  array, element = single_element(node)
  return unless array

  add_offense(
    node.source_range.with(begin_pos: node.loc.selector.begin_pos)
  ) do |corrector|
    corrector.replace(node.loc.selector, 'include?')
    corrector.replace(
      array,
      array.percent_literal? ? element.value.inspect : element.source
    )
  end
end

#single_element(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/array_intersect_with_single_element.rb', line 25

def_node_matcher :single_element, <<~PATTERN
  (send _ _ $(array $_))
PATTERN