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 = 
'Do not use `unless` with `else`. Rewrite these with the ' \
'positive case first.'

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 inherited from Cop

#add_offense, all, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_name_with_namespace, cop_type, #correct, #debug?, #display_cop_names?, #display_style_guide?, inherited, #initialize, #join_force?, lint?, #message, non_rails, qualified_cop_name, rails?, #relevant_file?, #style_guide_url

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, block_length, command?, comment_line?, const_name, directions, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, move_pos, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_comma, range_with_surrounding_space, source_range, strip_quotes, within_node?

Methods included from PathUtil

hidden?, issue_deprecation_warning, match_path?, relative_path

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)
  return unless loc.keyword.is?('unless') && loc.else

  add_offense(node, :expression)
end