Class: Rubocop::Cop::Style::PerlBackrefs

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

Overview

This cop looks for uses of Perl-style regexp match backreferences like $1, $2, etc.

Constant Summary collapse

MSG = 
'Avoid the use of Perl-style backrefs.'

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/perl_backrefs.rb', line 15

def autocorrect(node)
  @corrections << lambda do |corrector|
    backref, = *node

    corrector.replace(node.loc.expression,
                      "Regexp.last_match[#{backref}]")
  end
end

#on_nth_ref(node) ⇒ Object 



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

def on_nth_ref(node)
  convention(node, :expression)
end