class Treetop::Runtime::SyntaxNode
We extend the SyntaxNode
class to include a hash of meta data. Individual rules can define meta_data_item method that must return a hash that is merged with the hash data for the entire query.
Public Instance Methods
meta_data(hash = {})
click to toggle source
# File lib/tnql/treetop/extensions.rb, line 7 def meta_data(hash = {}) hash.merge!(meta_data_item) if respond_to?(:meta_data_item) if nonterminal? elements.each do |element| element.meta_data(hash) end end hash end