Support serialization of WorldImpact

pkg/compiler/lib/src/native/enqueue.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.
 
 import 'dart:collection' show Queue;
 
 import '../common.dart';
 import '../common/backend_api.dart' show
     ForeignResolver;
 import '../common/registry.dart' show
@@ skipping 400 matching lines @@
       } else if (element.isField) {
         handleFieldAnnotations(element);
         if (backend.isNative(element)) {
           registerFieldLoad(element);
           registerFieldStore(element);
         }
       }
     });
   }
 
-  handleFieldAnnotations(Element element) {
+  void handleFieldAnnotations(Element element) {
+    if (compiler.serialization.isDeserialized(element)) {
+      return;
+    }
     if (backend.isNative(element.enclosingElement)) {
       // Exclude non-instance (static) fields - they not really native and are
       // compiled as isolate globals.  Access of a property of a constructor
       // function or a non-method property in the prototype chain, must be coded
       // using a JS-call.
       if (element.isInstanceMember) {
-        setNativeName(element);
+        _setNativeName(element);
       }
     }
   }
 
-  handleMethodAnnotations(Element method) {
+  void handleMethodAnnotations(Element method) {
+    if (compiler.serialization.isDeserialized(method)) {
+      return;
+    }
     if (isNativeMethod(method)) {
       if (method.isStatic) {
-        setNativeNameForStaticMethod(method);
+        _setNativeNameForStaticMethod(method);
       } else {
-        setNativeName(method);
+        _setNativeName(method);
       }
     }
   }
 
   /// Sets the native name of [element], either from an annotation, or
   /// defaulting to the Dart name.
-  void setNativeName(MemberElement element) {
+  void _setNativeName(MemberElement element) {
     String name = findJsNameFromAnnotation(element);
     if (name == null) name = element.name;
-    backend.setNativeMemberName(element, name);
+    backend.nativeData.setNativeMemberName(element, name);
   }
 
   /// Sets the native name of the static native method [element], using the
   /// following rules:
   /// 1. If [element] has a @JSName annotation that is an identifier, qualify
   ///    that identifier to the @Native name of the enclosing class
   /// 2. If [element] has a @JSName annotation that is not an identifier,
   ///    use the declared @JSName as the expression
   /// 3. If [element] does not have a @JSName annotation, qualify the name of
   ///    the method with the @Native name of the enclosing class.
-  void setNativeNameForStaticMethod(MethodElement element) {
+  void _setNativeNameForStaticMethod(MethodElement element) {
     String name = findJsNameFromAnnotation(element);
     if (name == null) name = element.name;
     if (isIdentifier(name)) {
       List<String> nativeNames =
-          backend.getNativeTagsOfClassRaw(element.enclosingClass);
+          backend.nativeData.getNativeTagsOfClassRaw(element.enclosingClass);
       if (nativeNames.length != 1) {
         reporter.internalError(element,
             'Unable to determine a native name for the enclosing class, '
             'options: $nativeNames');
       }
-      backend.setNativeMemberName(element, '${nativeNames[0]}.$name');
+      backend.nativeData.setNativeMemberName(
+          element, '${nativeNames[0]}.$name');
     } else {
-      backend.setNativeMemberName(element, name);
+      backend.nativeData.setNativeMemberName(element, name);
     }
   }
 
   bool isIdentifier(String s) => _identifier.hasMatch(s);
 
   bool isNativeMethod(FunctionElementX element) {
     if (!backend.canLibraryUseNative(element.library)) return false;
     // Native method?
     return reporter.withCurrentElement(element, () {
       Node node = element.parseNode(resolution.parsing);
@@ skipping 114 matching lines @@
   NativeResolutionEnqueuer(Enqueuer world, Compiler compiler)
     : super(world, compiler, compiler.options.enableNativeLiveTypeAnalysis);
 
   void processNativeClass(ClassElement classElement) {
     super.processNativeClass(classElement);
 
     // Js Interop interfaces do not have tags.
     if (backend.isJsInterop(classElement)) return;
     // Since we map from dispatch tags to classes, a dispatch tag must be used
     // on only one native class.
-    for (String tag in backend.getNativeTagsOfClass(classElement)) {
+    for (String tag in backend.nativeData.getNativeTagsOfClass(classElement)) {
       ClassElement owner = tagOwner[tag];
       if (owner != null) {
         if (owner != classElement) {
           reporter.internalError(
               classElement, "Tag '$tag' already in use by '${owner.name}'");
         }
       } else {
         tagOwner[tag] = classElement;
       }
     }
@@ skipping 114 matching lines @@
         superclass,
         () => <ClassElement>[]);
     directSubtypes.add(cls);
   }
 
   void logSummary(log(message)) {
     log('Compiled ${registeredClasses.length} native classes, '
         '${unusedClasses.length} native classes omitted.');
   }
 }