Add Resolution and Parsing interfaces for computeType, ensureResolved and parseNode.

pkg/compiler/lib/src/dart_backend/backend.dart

 // 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.
 
 part of dart_backend;
 
 // TODO(ahe): This class is simply wrong.  This backend should use
 // elements when it can, not AST nodes.  Perhaps a [Map<Element,
 // TreeElements>] is what is needed.
 class ElementAst {
@@ skipping 98 matching lines @@
         constantCompilerTask = new DartConstantTask(compiler),
         outputter = new DartOutputter(
             compiler, compiler.outputProvider,
             forceStripTypes: strips.indexOf('types') != -1,
             multiFile: multiFile,
             enableMinification: compiler.enableMinification),
         super(compiler) {
     resolutionCallbacks = new DartResolutionCallbacks(this);
   }
 
+  Resolution get resolution => compiler.resolution;
+
   bool classNeedsRti(ClassElement cls) => false;
   bool methodNeedsRti(FunctionElement function) => false;
 
   void enqueueHelpers(ResolutionEnqueuer world, Registry registry) {
     // Right now resolver doesn't always resolve interfaces needed
     // for literals, so force them. TODO(antonm): fix in the resolver.
     final LITERAL_TYPE_NAMES = const [
       'Map', 'List', 'num', 'int', 'double', 'bool'
     ];
     final coreLibrary = compiler.coreLibrary;
     for (final name in LITERAL_TYPE_NAMES) {
       ClassElement classElement = coreLibrary.findLocal(name);
-      classElement.ensureResolved(compiler);
+      classElement.ensureResolved(resolution);
     }
     // Enqueue the methods that the VM might invoke on user objects because
     // we don't trust the resolution to always get these included.
     world.registerInvocation(new UniverseSelector(Selectors.toString_, null));
     world.registerInvokedGetter(
         new UniverseSelector(Selectors.hashCode_, null));
     world.registerInvocation(
         new UniverseSelector(new Selector.binaryOperator('=='), null));
     world.registerInvocation(
         new UniverseSelector(Selectors.compareTo, null));
@@ skipping 76 matching lines @@
 
   @override
   Future onLibrariesLoaded(LoadedLibraries loadedLibraries) {
     // All platform classes must be resolved to ensure that their member names
     // are preserved.
     loadedLibraries.forEachLibrary((LibraryElement library) {
       if (library.isPlatformLibrary) {
         library.forEachLocalMember((Element element) {
           if (element.isClass) {
             ClassElement classElement = element;
-            classElement.ensureResolved(compiler);
+            classElement.ensureResolved(resolution);
           }
         });
       }
     });
     if (useMirrorHelperLibrary &&
         loadedLibraries.containsLibrary(Uris.dart_mirrors)) {
       return compiler.libraryLoader.loadLibrary(
           compiler.translateResolvedUri(
               loadedLibraries.getLibrary(Uris.dart_mirrors),
               MirrorRenamerImpl.DART_MIRROR_HELPER, null)).
@@ skipping 60 matching lines @@
         LibraryElement library = superclass.library;
         if (library.isPlatformLibrary) {
           if (_userImplementedPlatformClasses.add(superclass)) {
             // Register selectors for all instance methods since these might
             // be called on user classes from within the platform
             // implementation.
             superclass.forEachLocalMember((MemberElement element) {
               if (element.isConstructor || element.isStatic) return;
 
               FunctionElement function = element.asFunctionElement();
-              element.computeType(compiler);
+              element.computeType(resolution);
               Selector selector = new Selector.fromElement(element);
               if (selector.isGetter) {
                 registry.registerDynamicGetter(
                     new UniverseSelector(selector, null));
               } else if (selector.isSetter) {
                 registry.registerDynamicSetter(
                     new UniverseSelector(selector, null));
               } else {
                 registry.registerDynamicInvocation(
                     new UniverseSelector(selector, null));
@@ skipping 202 matching lines @@
   }
 
   // TODO(johnniwinther): Remove this when values are computed from the
   // expressions.
   @override
   void copyConstantValues(DartConstantTask task) {
     constantCompiler.constantValueMap.addAll(
         task.constantCompiler.constantValueMap);
   }
 }