Class: Rubocop::Cop::Style::UnlessElse

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

Overview

This cop looks for unless expressions with else clauses.

Constant Summary collapse

MSG = 
'Never use unless with else. Rewrite these with the ' +
'positive case first.'

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

#on_if(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/unless_else.rb', line 11

def on_if(node)
  loc = node.loc

  # discard ternary ops and modifier if/unless nodes
  return unless loc.respond_to?(:keyword) && loc.respond_to?(:else)

  if loc.keyword.is?('unless') && loc.else
    convention(node, :expression)
  end
end