Fixed Label match naming bug

lib/citrus.rb

@@ -611,6 +611,11 @@ def embed
     def inspect # :nodoc:
       to_s
     end
+
+    def extend_match(match) # :nodoc:
+      match.names << name if named?
+      match.extend(extension) if extension
+    end
   end
 
   # A Terminal is a Rule that matches directly on the input stream and may not
@@ -944,6 +949,11 @@ def exec(input, events=[])
     def to_s
       label.to_s + ':' + rule.embed
     end
+
+    def extend_match(match) # :nodoc:
+      match.names << label
+      super
+    end
   end
 
   # A Repeat is a Predicate that specifies a minimum and maximum number of times
@@ -1237,11 +1247,9 @@ def dump_lines(indent='  ') # :nodoc:
 
   private
 
-    # Extends this match with the extensions provided by its #rules.
     def extend! # :nodoc:
       extenders.each do |rule|
-        self.names << rule.name if rule.named?
-        extend(rule.extension) if rule.extension
+        rule.extend_match(self)
       end
     end
   end

test/label_test.rb

@@ -6,6 +6,16 @@ def test_terminal?
     assert_equal(false, rule.terminal?)
   end
 
+  def test_match
+    abc = Rule.new('abc')
+    abc.name = 'abc'
+    label = Label.new(abc, 'a_label')
+    label.name = 'label'
+    match = label.parse('abc')
+    assert(match)
+    assert_equal([:abc, :a_label, :label], match.names)
+  end
+
   def test_to_s
     rule = Label.new('a', 'label')
     assert_equal('label:"a"', rule.to_s)