Class: Rubocop::Cop::Style::DefWithParentheses

Inherits:
Cop
  • Object
show all
Includes:
CheckMethods
Defined in:
lib/rubocop/cop/style/def_with_parentheses.rb

Overview

This cop checks for parentheses in the definition of a method, that does not take any arguments. Both instance and class/singleton methods are checked.

Constant Summary collapse

MSG = 
"Omit the parentheses in defs when the method doesn't accept " \
'any arguments.'

Constants included from Util

Util::ASGN_NODES, Util::EQUALS_ASGN_NODES, Util::OPERATOR_METHODS, Util::PROC_NEW_NODE, Util::SHORTHAND_ASGN_NODES

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

Methods included from CheckMethods

#on_def, #on_defs

Methods inherited from Cop

#add_offense, all, #autocorrect?, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_type, #debug?, #display_cop_names?, #exclude_file?, #include_file?, inherited, #initialize, lint?, #message, non_rails, rails?, #relevant_file?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

block_length, command?, comment_line?, const_name, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, on_node, operator?, parentheses?, proc?, range_with_surrounding_space, source_range, strip_quotes

Methods included from PathUtil

match_path?, relative_path

Constructor Details

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

Instance Method Details

#autocorrect(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/def_with_parentheses.rb', line 24

def autocorrect(node)
  @corrections << lambda do |corrector|
    corrector.remove(node.loc.begin)
    corrector.remove(node.loc.end)
  end
end

#check(node, _method_name, args, _body) ⇒ Object 



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# File 'lib/rubocop/cop/style/def_with_parentheses.rb', line 15

def check(node, _method_name, args, _body)
  start_line = node.loc.keyword.line
  end_line = node.loc.end.line

  return if start_line == end_line

  add_offense(args, :begin) if args.children == [] && args.loc.begin
end