- Get rid of RawClosure class and use RawInstance for closures.

vm/dart_api_impl.cc

 // 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.
 
 #include "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 2366 matching lines @@
 
 
 // --- Closures ---
 
 
 DART_EXPORT bool Dart_IsClosure(Dart_Handle object) {
   // We can't use a fast class index check here because there are many
   // different signature classes for closures.
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
-  const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object));
-  return obj.IsClosure();
+  const Instance& closure_obj = Api::UnwrapInstanceHandle(isolate, object);
+  return (!closure_obj.IsNull() && closure_obj.IsClosure());
 }
 
 
 DART_EXPORT Dart_Handle Dart_ClosureFunction(Dart_Handle closure) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
-  const Closure& closure_obj = Api::UnwrapClosureHandle(isolate, closure);
-  if (closure_obj.IsNull()) {
-    RETURN_TYPE_ERROR(isolate, closure, Closure);
+  const Instance& closure_obj = Api::UnwrapInstanceHandle(isolate, closure);
+  if (closure_obj.IsNull() || !closure_obj.IsClosure()) {
+    RETURN_TYPE_ERROR(isolate, closure, Instance);
   }
+
   ASSERT(ClassFinalizer::AllClassesFinalized());
 
-  RawFunction* rf = closure_obj.function();
+  RawFunction* rf = Closure::function(closure_obj);
   return Api::NewHandle(isolate, rf);
 }
 
 
 DART_EXPORT Dart_Handle Dart_InvokeClosure(Dart_Handle closure,
                                            int number_of_arguments,
                                            Dart_Handle* arguments) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
-  const Closure& closure_obj = Api::UnwrapClosureHandle(isolate, closure);
-  if (closure_obj.IsNull()) {
-    RETURN_TYPE_ERROR(isolate, closure, Closure);
+  const Instance& closure_obj = Api::UnwrapInstanceHandle(isolate, closure);
+  if (closure_obj.IsNull() || !closure_obj.IsClosure()) {
+    RETURN_TYPE_ERROR(isolate, closure, Instance);
   }
   if (number_of_arguments < 0) {
     return Api::NewError(
         "%s expects argument 'number_of_arguments' to be non-negative.",
         CURRENT_FUNC);
   }
   ASSERT(ClassFinalizer::AllClassesFinalized());
 
   // Now try to invoke the closure.
   GrowableArray<const Object*> dart_arguments(number_of_arguments);
@@ skipping 2052 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success(isolate);
 }
 
 }  // namespace dart