Class: Puppet::Pops::Parser::LexerSupport::TokenValue

Inherits:
Puppet::Pops::Parser::Locatable show all
Defined in:
lib/puppet/pops/parser/lexer_support.rb

Overview

A TokenValue keeps track of the token symbol, the lexed text for the token, its length and its position in its source container. There is a cost associated with computing the line and position on line information.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(token_array, offset, locator) ⇒ TokenValue

Returns a new instance of TokenValue


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 107

def initialize(token_array, offset, locator)
  @token_array = token_array
  @offset = offset
  @locator = locator
end

Instance Attribute Details

#locatorObject (readonly)


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 105

def locator
  @locator
end

#offsetObject (readonly)


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 104

def offset
  @offset
end

#token_arrayObject (readonly)


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 103

def token_array
  @token_array
end

Instance Method Details

#[](key) ⇒ Object


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 117

def [](key)
  case key
  when :value
    @token_array[1]
  when :file
    @locator.file
  when :line
    @locator.line_for_offset(@offset)
  when :pos
    @locator.pos_on_line(@offset)
  when :length
    @token_array[2]
  when :locator
    @locator
  when :offset
    @offset
  else
    nil
  end
end

#lengthObject


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 113

def length
  @token_array[2]
end

#to_sObject


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# File 'lib/puppet/pops/parser/lexer_support.rb', line 138

def to_s
  # This format is very compact and is intended for debugging output from racc parser in
  # debug mode. If this is made more elaborate the output from a debug run becomes very hard to read.
  #
  "'#{self[:value]} #{@token_array[0]}'"
end