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Class: Prism::Token

Relationships & Source Files
Inherits: Object
Defined in: lib/prism/parse_result.rb

Overview

This represents a token from the Ruby source.

Class Method Summary

Instance Attribute Summary

  • #type readonly

    The type of token that this token is.

  • #value readonly

    A byteslice of the source that this token represents.

  • #source readonly private

    The Source object that represents the source this token came from.

Instance Method Summary

Constructor Details

.new(source, type, value, location) ⇒ Token

Create a new token object with the given type, value, and location.

[ GitHub ] 

  


# File 'lib/prism/parse_result.rb', line 657



def initialize(source, type, value, location)
  @source = source
  @type = type
  @value = value
  @location = location
end


  







Instance Attribute Details



  

    #source   (readonly, private)
  



  

    

The Source object that represents the source this token came from.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 647



attr_reader :source


  








  

    #type   (readonly)
  



  

    

The type of token that this token is.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 651



attr_reader :type


  








  

    #value   (readonly)
  



  

    

A byteslice of the source that this token represents.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 654



attr_reader :value


  







Instance Method Details



  

    #==(other)  
  



  

    

Returns true if the given other token is equal to this token.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 692



def ==(other)
  Token === other &&
    other.type == type &&
    other.value == value
end


  








  

    #deconstruct_keys(keys)  
  



  

    

Implement the hash pattern matching interface for Token.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 665



def deconstruct_keys(keys)
  { type: type, value: value, location: location }
end


  








  

    #location  
  



  

    

A Location object representing the location of this token in the source.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 670



def location
  location = @location
  return location if location.is_a?(Location)
  @location = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end


  








  

    #pretty_print(q)  
  



  

    

Implement the pretty print interface for Token.


  



  [ GitHub ]


  

  


# File 'lib/prism/parse_result.rb', line 677



def pretty_print(q)
  q.group do
    q.text(type.to_s)
    self.location.pretty_print(q)
    q.text("(")
    q.nest(2) do
      q.breakable("")
      q.pp(value)
    end
    q.breakable("")
    q.text(")")
  end
end