Semantic highlighting for LABEL elements.

pkg/analysis_server/lib/src/computer/computer_highlights.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library computer.highlights;
 
 import 'package:analysis_server/src/protocol.dart' hide Element;
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/scanner.dart';
@@ skipping 64 matching lines @@
     }
     if (_addIdentifierRegion_function(node)) {
       return;
     }
     if (_addIdentifierRegion_functionTypeAlias(node)) {
       return;
     }
     if (_addIdentifierRegion_importPrefix(node)) {
       return;
     }
+    if (_addIdentifierRegion_label(node)) {
+      return;
+    }
     if (_addIdentifierRegion_localVariable(node)) {
       return;
     }
     if (_addIdentifierRegion_method(node)) {
       return;
     }
     if (_addIdentifierRegion_parameter(node)) {
       return;
     }
     if (_addIdentifierRegion_typeParameter(node)) {
@@ skipping 123 matching lines @@
   }
 
   bool _addIdentifierRegion_keyword(SimpleIdentifier node) {
     String name = node.name;
     if (name == "void") {
       return _addRegion_node(node, HighlightRegionType.KEYWORD);
     }
     return false;
   }
 
+  bool _addIdentifierRegion_label(SimpleIdentifier node) {
+    Element element = node.staticElement;
+    if (element is! LabelElement) {
+      return false;
+    }
+    return _addRegion_node(node, HighlightRegionType.LABEL);
+  }
+
   bool _addIdentifierRegion_localVariable(SimpleIdentifier node) {
     Element element = node.staticElement;
     if (element is! LocalVariableElement) {
       return false;
     }
     // OK
     HighlightRegionType type;
     if (node.inDeclarationContext()) {
       type = HighlightRegionType.LOCAL_VARIABLE_DECLARATION;
     } else {
@@ skipping 388 matching lines @@
     computer._addRegion_token(node.keyword, HighlightRegionType.KEYWORD);
     return super.visitWhileStatement(node);
   }
 
   @override
   Object visitWithClause(WithClause node) {
     computer._addRegion_token(node.withKeyword, HighlightRegionType.KEYWORD);
     return super.visitWithClause(node);
   }
 }