Class: Wallace::GE::GrammarDerivation

Inherits:
String
  • Object
show all
Defined in:
lib/modules/ge/grammar_derivation.rb

Overview

The GrammarDerivation class is used to hold a derivation of a grammar produced by some provided sequence of integers. This class implements methods for transforming the derivation into other forms.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.to_lambda(args, derivation) ⇒ Object

Produces a lambda function from a given grammar derivation and a set of arguments.

Parameters:

  • args, an ordered array of the arguments to the lambda function.

  • derivation, the grammar derivation to use as the body of the function.

Returns: The corresponding lambda function.



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# File 'lib/modules/ge/grammar_derivation.rb', line 15

def self.to_lambda(args, derivation)
  eval("lambda { |#{args.join(',')}| #{derivation} }")
end

Instance Method Details

#to_lambda(args) ⇒ Object

Converts this derivation into a usable lambda function.

Parameters:

  • args, an ordered array of the arguments to the lambda function.

Returns: The corresponding lambda function.



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# File 'lib/modules/ge/grammar_derivation.rb', line 26

def to_lambda(args)
  Wallace::GE::GrammarDerivation.to_lambda(args, self)
end