Class: Rubocop::Cop::Style::ColonMethodCall

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

Overview

This cop checks for methods invoked via the :: operator instead of the . operator (like FileUtils::rmdir instead of FileUtils.rmdir).

Constant Summary collapse

MSG =
'Do not use :: for method calls.'

Instance Attribute Summary

Attributes inherited from Cop

#autocorrect, #corrections, #debug, #disabled_lines, #offences

Instance Method Summary collapse

Methods inherited from Cop

#add_offence, all, cop_name, cop_type, #do_autocorrect, #ignore_node, inherited, #initialize, lint?, #name, rails?, style?

Constructor Details

This class inherits a constructor from Rubocop::Cop::Cop

Instance Method Details

#allowed_name(method_name) ⇒ Object



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# File 'lib/rubocop/cop/style/colon_method_call.rb', line 22

def allowed_name(method_name)
  method_name.match(/^[A-Z]/)
end

#autocorrect_action(node) ⇒ Object



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# File 'lib/rubocop/cop/style/colon_method_call.rb', line 26

def autocorrect_action(node)
  @corrections << lambda do |corrector|
    corrector.replace(node.loc.dot, '.')
  end
end

#on_send(node) ⇒ Object



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

def on_send(node)
  receiver, _method_name, *_args = *node

  # discard methods with nil receivers and op methods(like [])
  return unless receiver && node.loc.dot && node.loc.dot.is?('::')
  return if allowed_name(_method_name.to_s)

  add_offence(:convention, node.loc.dot, MSG)
  do_autocorrect(node)
end