Class: Rubocop::Cop::Style::MethodCallParentheses

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

Overview

This cop checks for unwanted parentheses in parameterless method calls.

Constant Summary collapse

MSG =
'Do not use parentheses for method calls with no arguments.'

Constants inherited from Cop

Cop::OPERATOR_METHODS

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offences, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offence, all, #autocorrect?, #convention, #cop_config, cop_name, #cop_name, cop_type, #debug?, #ignore_node, inherited, #initialize, lint?, #message, non_rails, rails?, style?, #support_autocorrect?, #warning

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/method_call_parentheses.rb', line 19

def autocorrect(node)
  # Bail out if the call is going to be auto-corrected by EmptyLiteral.
  if config.for_cop('EmptyLiteral')['Enabled'] &&
      [EmptyLiteral::HASH_NODE,
       EmptyLiteral::ARRAY_NODE,
       EmptyLiteral::STR_NODE].include?(node)
    fail CorrectionNotPossible
  end
  @corrections << lambda do |corrector|
    corrector.remove(node.loc.begin)
    corrector.remove(node.loc.end)
  end
end

#on_send(node) ⇒ Object



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# File 'lib/rubocop/cop/style/method_call_parentheses.rb', line 10

def on_send(node)
  _receiver, method_name, *args = *node

  # methods starting with a capital letter should be skipped
  return if method_name =~ /\A[A-Z]/

  convention(node, :begin) if args.empty? && node.loc.begin
end