Class: Calyx::Grammar::Production::Choices

Inherits:
Object
  • Object
show all
Defined in:
lib/calyx.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(collection) ⇒ Choices

Returns a new instance of Choices.



127
128
129
 
# File 'lib/calyx.rb', line 127

def initialize(collection)
  @collection = collection
end

Class Method Details

.parse(productions) ⇒ Object 



116
117
118
119
120
121
122
123
124
125
 
# File 'lib/calyx.rb', line 116

def self.parse(productions)
  choices = productions.map do |choice|
    if choice.is_a?(String)
      Concat.parse(choice)
    elsif choice.is_a?(Symbol)
      NonTerminal.new(choice)
    end
  end
  self.new(choices)
end

Instance Method Details

#evaluate(registry) ⇒ Object 



131
132
133
 
# File 'lib/calyx.rb', line 131

def evaluate(registry)
  @collection.sample.evaluate(registry)
end