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Class: RuboCop::Cop::Performance::RedundantMerge::EachWithObjectInspector

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, NodePattern::Macros
Inherits: Object
Defined in: lib/rubocop/cop/performance/redundant_merge.rb

Overview

A utility class for checking the use of values within an each_with_object call.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(node, receiver) ⇒ EachWithObjectInspector

[ GitHub ] 

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 157



def initialize(node, receiver)
  @node = node
  @receiver = unwind(receiver)
end


  







Instance Attribute Details



  

    #eligible_receiver?  ⇒ Boolean  (readonly, private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 172



def eligible_receiver?
  receiver.respond_to?(:lvar_type?) && receiver.lvar_type?
end


  








  

    #node   (readonly, private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 170



attr_reader :node, :receiver


  








  

    #receiver   (readonly, private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 170



attr_reader :node, :receiver


  








  

    #value_used?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 162



def value_used?
  return false unless eligible_receiver? && second_argument

  receiver.loc.name.source == second_argument.loc.name.source
end


  







Instance Method Details



  

    #second_argument   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 176



def second_argument
  parent = node.parent
  parent = parent.parent if parent.begin_type?

  @second_argument ||= each_with_object_node(parent)
end


  








  

    #unwind(receiver)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/performance/redundant_merge.rb', line 183



def unwind(receiver)
  receiver, = *receiver while receiver.respond_to?(:send_type?) && receiver.send_type?
  receiver
end