Issue 6770. Support for @deprecated on library directive.

compiler/java/com/google/dart/compiler/parser/DartParser.java

 // Copyright (c) 2012, 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.
 
 package com.google.dart.compiler.parser;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.io.CharStreams;
 import com.google.dart.compiler.DartCompilationError;
@@ skipping 78 matching lines @@
 import com.google.dart.compiler.ast.DartTryStatement;
 import com.google.dart.compiler.ast.DartTypeExpression;
 import com.google.dart.compiler.ast.DartTypeNode;
 import com.google.dart.compiler.ast.DartTypeParameter;
 import com.google.dart.compiler.ast.DartUnaryExpression;
 import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.ast.DartUnqualifiedInvocation;
 import com.google.dart.compiler.ast.DartVariable;
 import com.google.dart.compiler.ast.DartVariableStatement;
 import com.google.dart.compiler.ast.DartWhileStatement;
+import com.google.dart.compiler.ast.HasObsoleteMetadata;
 import com.google.dart.compiler.ast.ImportCombinator;
 import com.google.dart.compiler.ast.ImportHideCombinator;
 import com.google.dart.compiler.ast.ImportShowCombinator;
 import com.google.dart.compiler.ast.LibraryNode;
 import com.google.dart.compiler.ast.LibraryUnit;
 import com.google.dart.compiler.ast.Modifiers;
 import com.google.dart.compiler.metrics.CompilerMetrics;
 import com.google.dart.compiler.parser.DartScanner.Location;
 import com.google.dart.compiler.resolver.Elements;
 import com.google.dart.compiler.util.Lists;
@@ skipping 271 matching lines @@
 
   /**
    * Set the metadata associated with the given node to the given annotations.
    * 
    * @param node the node with which the metadata is to be associated
    * @param metadata the metadata to be associated with the node
    */
   private void setMetadata(DartNodeWithMetadata node, List<DartAnnotation> annotations) {
     if (annotations != null && !annotations.isEmpty()) {
       node.setMetadata(annotations);
-      if (node instanceof DartDeclaration<?>) {
+      if (node instanceof HasObsoleteMetadata) {
+        HasObsoleteMetadata declaration = (HasObsoleteMetadata) node;
         for (int i = 0, size = annotations.size(); i < size; i++) {
           DartAnnotation annotation = annotations.get(i);
           DartExpression nameNode = annotation.getName();
           if (nameNode instanceof DartIdentifier) {
             String name = ((DartIdentifier) nameNode).getName();
             if (name.equals("deprecated")) {
-              DartDeclaration<?> declaration = (DartDeclaration<?>) node;
               declaration.setObsoleteMetadata(declaration.getObsoleteMetadata().makeDeprecated());
             } else if (name.equals("override")) {
-              DartDeclaration<?> declaration = (DartDeclaration<?>) node;
               declaration.setObsoleteMetadata(declaration.getObsoleteMetadata().makeOverride());
             }
           }
         }
       }
     }
   }
 
   private boolean looksLikeDirective() {
     switch(peek(0)) {
@@ skipping 5025 matching lines @@
   private void reportError(DartNode node, ErrorCode errorCode, Object... arguments) {
     if (node != null) {
       reportError(new DartCompilationError(node, errorCode, arguments));
     }
   }
 
   private boolean currentlyParsingToplevel() {
     return   !(isParsingInterface || isTopLevelAbstract || isParsingClass);
   }
 }