Class: RuboCop::Cop::InternalAffairs::LambdaOrProc

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

Overview

Enforces the use of ‘node.lambda_or_proc?` instead of `node.lambda? || node.proc?`.

Examples:

# bad
node.lambda? || node.proc?
node.proc? || node.lambda?

# good
node.lambda_or_proc?

Constant Summary collapse

MSG = 
'Use `%<prefer>s`.'

Constants inherited from Base

Base::RESTRICT_ON_SEND

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_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 RuboCop::Cop::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

#lambda_or_proc(node) ⇒ Object 



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# File 'lib/rubocop/cop/internal_affairs/lambda_or_proc.rb', line 22

def_node_matcher :lambda_or_proc, <<~PATTERN
  {
    (or $(send _node :lambda?) $(send _node :proc?))
    (or $(send _node :proc?) $(send _node :lambda?))
    (or
      (or _ $(send _node :lambda?)) $(send _node :proc?))
    (or
      (or _ $(send _node :proc?)) $(send _node :lambda?))
  }
PATTERN

#on_or(node) ⇒ Object 



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# File 'lib/rubocop/cop/internal_affairs/lambda_or_proc.rb', line 33

def on_or(node)
  return unless (lhs, rhs = lambda_or_proc(node))

  offense = lhs.receiver.source_range.join(rhs.source_range.end)
  prefer = "#{lhs.receiver.source}.lambda_or_proc?"

  add_offense(offense, message: format(MSG, prefer: prefer)) do |corrector|
    corrector.replace(offense, prefer)
  end
end