Contents

require 'grokdown'

module Grokdown
  module Consuming
    def self.extended(base)
      base.send(:include,InstanceMethods)
    end

    def consumes?(node)
      @consumables ||= {}
      @consumables.has_key?(node.class)
    end

    def consumes(mapping={})
      @consumables = mapping
    end

    def consume(inst,node)
      @consumables ||= {}
      inst.send(@consumables.fetch(node.class),node)
    rescue KeyError
      raise ArgumentError, "#{inst.class} cannot consume #{node.class}"
    end

    module InstanceMethods
      def consumes?(node)
        self.class.consumes?(node)
      end

      def consume(node)
        self.class.consume(self,node)
      end
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
grokdown-0.2.1	lib/grokdown/consuming.rb
grokdown-0.2.0	lib/grokdown/consuming.rb
grokdown-0.1.1	lib/grokdown/consuming.rb
grokdown-0.1.0	lib/grokdown/consuming.rb