Register closures using StaticUse.

pkg/compiler/lib/src/enqueue.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.
 
 library dart2js.enqueue;
 
 import 'dart:collection' show
     Queue;
 
 import 'common.dart';
@@ skipping 152 matching lines @@
    * Returns [true] if the element was actually added to the queue.
    */
   bool internalAddToWorkList(Element element);
 
   /// Apply the [worldImpact] of processing [element] to this enqueuer.
   void applyImpact(Element element, WorldImpact worldImpact) {
     // TODO(johnniwinther): Optimize the application of the world impact.
     worldImpact.dynamicUses.forEach(registerDynamicUse);
     worldImpact.staticUses.forEach(registerStaticUse);
     worldImpact.typeUses.forEach(registerTypeUse);
-    worldImpact.closures.forEach(registerClosure);
   }
 
   void registerInstantiatedType(InterfaceType type,
                                 {bool mirrorUsage: false}) {
     task.measure(() {
       ClassElement cls = type.element;
       cls.ensureResolved(resolution);
       bool isNative = compiler.backend.isNative(cls);
       universe.registerTypeInstantiation(
           type,
@@ skipping 437 matching lines @@
         message: "Element ${element} is not the declaration."));
     universe.registerStaticUse(staticUse);
     compiler.backend.registerStaticUse(element, this);
     bool addElement = true;
     switch (staticUse.kind) {
       case StaticUseKind.STATIC_TEAR_OFF:
         compiler.backend.registerGetOfStaticFunction(this);
         break;
       case StaticUseKind.FIELD_GET:
       case StaticUseKind.FIELD_SET:
+      case StaticUseKind.CLOSURE:
         // TODO(johnniwinther): Avoid this. Currently [FIELD_GET] and
         // [FIELD_SET] contains [BoxFieldElement]s which we cannot enqueue.
+        // Also [CLOSURE] contains [LocalFunctionElement] which we cannot
+        // enqueue.
         addElement = false;
         break;
       case StaticUseKind.SUPER_TEAR_OFF:
       case StaticUseKind.GENERAL:
         break;
     }
     if (addElement) {
       addToWorkList(element);
     }
   }
@@ skipping 38 matching lines @@
   void registerClosurizedMember(TypedElement element) {
     assert(element.isInstanceMember);
     if (element.computeType(resolution).containsTypeVariables) {
       compiler.backend.registerClosureWithFreeTypeVariables(
           element, this, compiler.globalDependencies);
     }
     compiler.backend.registerBoundClosure(this);
     universe.closurizedMembers.add(element);
   }
 
-  void registerClosure(LocalFunctionElement element) {
-    universe.allClosures.add(element);
-  }
-
   void forEach(void f(WorkItem work)) {
     do {
       while (queue.isNotEmpty) {
         // TODO(johnniwinther): Find an optimal process order.
         filter.processWorkItem(f, queue.removeLast());
       }
       List recents = recentClasses.toList(growable: false);
       recentClasses.clear();
       if (!onQueueEmpty(recents)) recentClasses.addAll(recents);
     } while (queue.isNotEmpty || recentClasses.isNotEmpty);
@@ skipping 330 matching lines @@
   @override
   void processStaticUse(Enqueuer enqueuer, StaticUse staticUse) {
     enqueuer.registerStaticUseInternal(staticUse);
   }
 
   @override
   void processDynamicUse(Enqueuer enqueuer, DynamicUse dynamicUse) {
     enqueuer.handleUnseenSelectorInternal(dynamicUse);
   }
 }