Class: Rubocop::Cop::Lint::Void

Inherits:
Cop
  • Object
show all
Defined in:
lib/rubocop/cop/lint/void.rb

Overview

This cop checks for operators, variables and literals used in void context.

Constant Summary collapse

OP_MSG = 
'Operator %s used in void context.'
VAR_MSG = 
'Variable %s used in void context.'
LIT_MSG = 
'Literal %s used in void context'
OPS = 
%w(* / % + - == === != < > <= >= <=>)
VARS = 
[:ivar, :lvar, :cvar, :const]
LITERALS = 
[:str, :dstr, :int, :float, :array,
:hash, :regexp, :nil, :true, :false]

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_begin(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/void.rb', line 18

def on_begin(node)
  expressions = *node

  expressions.drop_last(1).each do |expr|
    check_for_void_op(expr)
    check_for_literal(expr)
    check_for_var(expr)
  end
end