Class: RuboCop::Cop::Style::Proc

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

Overview

This cop checks for uses of Proc.new where Kernel#proc would be more appropriate.

Examples:

# bad
p = Proc.new { |n| puts n }

# good
p = proc { |n| puts n }

Constant Summary collapse

MSG = 
'Use `proc` instead of `Proc.new`.'

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

#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?, #message, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #ready, #relevant_file?, 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?, #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_block(node) ⇒ Object 



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

def on_block(node)
  proc_new?(node) do |block_method|
    add_offense(block_method) do |corrector|
      corrector.replace(block_method, 'proc')
    end
  end
end

#proc_new?(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/proc.rb', line 22

def_node_matcher :proc_new?,
'(block $(send (const {nil? cbase} :Proc) :new) ...)'