Class: RuboCop::Cop::Style::Not

Inherits:

Cop

• Object
• Cop
• RuboCop::Cop::Style::Not

Includes:

AutocorrectUnlessChangingAST

Defined in:

lib/rubocop/cop/style/not.rb

Overview

This cop checks for uses if the keyword not instead of !.

Constant Summary

MSG =

'Use `!` instead of `not`.'

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

• #on_send(node) ⇒ Object

Methods included from AutocorrectUnlessChangingAST

#autocorrect, #rewrite_node

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, #join_force?, lint?, #message, non_rails, qualified_cop_name, 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, numeric_range_size, 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

#on_send(node) ⇒ Object

# File 'lib/rubocop/cop/style/not.rb', line 12

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

  # not does not take any arguments
  return unless args.empty? && method_name == :! &&
    node.loc.selector.is?('not')

  add_offense(node, :selector)
end