Execute user code blocks assigned to tokens

lib/propane/pattern.rb

@@ -2,6 +2,14 @@ class Propane
 
   class Pattern
 
+    # @return [String, nil]
+    #   Code block to execute when the pattern is matched.
+    attr_reader :code
+
+    # @option options [Integer, nil] :code_id
+    #   Code block ID.
+    attr_reader :code_id
+
     # @return [String, nil]
     #   Pattern.
     attr_reader :pattern
@@ -22,6 +30,10 @@ class Propane
     #
     # @param options [Hash]
     #   Optional parameters.
+    # @option options [String, nil] :code
+    #   Code block to execute when the pattern is matched.
+    # @option options [Integer, nil] :code_id
+    #   Code block ID.
     # @option options [Boolean] :drop
     #   Whether this is a drop pattern.
     # @option options [String, nil] :pattern
@@ -31,6 +43,8 @@ class Propane
     # @option options [Integer, nil] :line_number
     #   Line number where the token was defined in the input grammar.
     def initialize(options)
+      @code = options[:code]
+      @code_id = options[:code_id]
       @drop = options[:drop]
       @pattern = options[:pattern]
       @token = options[:token]