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Class: Prism::DesugarOrWriteDefinedNode

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
self, DSL
Inherits: Object
Defined in: lib/prism/desugar_compiler.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

  • #compile

    Desugar x ||= y to defined?(x) ? x : x = y.

Constructor Details

.new(node, default_source, read_class, write_class, **arguments) ⇒ DesugarOrWriteDefinedNode

[ GitHub ] 

  


# File 'lib/prism/desugar_compiler.rb', line 40



def initialize(node, default_source, read_class, write_class, **arguments)
  @node = node
  @default_source = default_source
  @read_class = read_class
  @write_class = write_class
  @arguments = arguments
end


  







Instance Attribute Details



  

    #arguments   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/prism/desugar_compiler.rb', line 38



attr_reader :node, :default_source, :read_class, :write_class, :arguments


  








  

    #default_source   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/prism/desugar_compiler.rb', line 38



attr_reader :node, :default_source, :read_class, :write_class, :arguments


  








  

    #node   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/prism/desugar_compiler.rb', line 38



attr_reader :node, :default_source, :read_class, :write_class, :arguments


  








  

    #read_class   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/prism/desugar_compiler.rb', line 38



attr_reader :node, :default_source, :read_class, :write_class, :arguments


  








  

    #write_class   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/prism/desugar_compiler.rb', line 38



attr_reader :node, :default_source, :read_class, :write_class, :arguments


  







Instance Method Details



  

    #compile  
  



  

    

Desugar x ||= y to defined?(x) ? x : x = y


  



  [ GitHub ]


  

  


# File 'lib/prism/desugar_compiler.rb', line 49



def compile
  if_node(
    location: node.location,
    if_keyword_loc: node.operator_loc,
    predicate: defined_node(
      location: node.name_loc,
      value: public_send(read_class, location: node.name_loc, **arguments),
      keyword_loc: node.operator_loc
    ),
    then_keyword_loc: node.operator_loc,
    statements: statements_node(
      location: node.location,
      body: [public_send(read_class, location: node.name_loc, **arguments)]
    ),
    subsequent: else_node(
      location: node.location,
      else_keyword_loc: node.operator_loc,
      statements: statements_node(
        location: node.location,
        body: [
          public_send(
            write_class,
            location: node.location,
            **arguments,
            name_loc: node.name_loc,
            value: node.value,
            operator_loc: node.operator_loc
          )
        ]
      ),
      end_keyword_loc: node.operator_loc
    ),
    end_keyword_loc: node.operator_loc
  )
end