Version 1.1.0-dev.5.2

dart/runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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 "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "vm/bigint_operations.h"
@@ skipping 275 matching lines @@
     RawExternalTwoByteString* raw_string =
         reinterpret_cast<RawExternalTwoByteString*>(raw_obj)->ptr();
     ExternalStringData<uint16_t>* data = raw_string->external_data_;
     *peer = data->peer();
     return true;
   }
   return false;
 }
 
 
+bool Api::GetNativeReceiver(Dart_NativeArguments args, intptr_t* value) {
+  NoGCScope no_gc_scope;
+  NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
+  RawObject* raw_obj = arguments->NativeArg0();
+  if (raw_obj->IsHeapObject()) {
+    intptr_t cid = raw_obj->GetClassId();
+    if (cid > kNumPredefinedCids) {
+      ASSERT(Instance::Cast(Object::Handle(raw_obj)).IsValidNativeIndex(0));
+      RawTypedData* native_fields = *reinterpret_cast<RawTypedData**>(
+          RawObject::ToAddr(raw_obj) + sizeof(RawObject));
+      if (native_fields == TypedData::null()) {
+        *value = 0;
+      } else {
+        *value = *bit_cast<intptr_t*, uint8_t*>(native_fields->ptr()->data_);
+      }
+      return true;
+    }
+  }
+  return false;
+}
+
+
 bool Api::GetNativeBooleanArgument(Dart_NativeArguments args,
                                    int arg_index,
                                    bool* value) {
   NoGCScope no_gc_scope;
   NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
   RawObject* raw_obj = arguments->NativeArgAt(arg_index);
   if (raw_obj->IsHeapObject()) {
       intptr_t cid = raw_obj->GetClassId();
       if (cid == kBoolCid) {
         *value = (raw_obj == Object::bool_true().raw());
@@ skipping 243 matching lines @@
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   ApiState* state = isolate->api_state();
   ASSERT(state != NULL);
   const Object& old_ref = Object::Handle(isolate, Api::UnwrapHandle(object));
   PersistentHandle* new_ref = state->persistent_handles().AllocateHandle();
   new_ref->set_raw(old_ref);
   return reinterpret_cast<Dart_PersistentHandle>(new_ref);
 }
 
+
+DART_EXPORT void Dart_SetPersistentHandle(Dart_PersistentHandle obj1,
+                                          Dart_Handle obj2) {
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+  ApiState* state = isolate->api_state();
+  ASSERT(state != NULL);
+  ASSERT(state->IsValidPersistentHandle(obj1));
+  const Object& obj2_ref = Object::Handle(isolate, Api::UnwrapHandle(obj2));
+  PersistentHandle* obj1_ref = Api::UnwrapAsPersistentHandle(obj1);
+  obj1_ref->set_raw(obj2_ref);
+}
+
+
 static Dart_WeakPersistentHandle AllocateFinalizableHandle(
     Isolate* isolate,
     FinalizablePersistentHandles* handles,
     Dart_Handle object,
     void* peer,
     Dart_WeakPersistentHandleFinalizer callback) {
   const Object& ref = Object::Handle(isolate, Api::UnwrapHandle(object));
   FinalizablePersistentHandle* finalizable_ref = handles->AllocateHandle();
   finalizable_ref->set_raw(ref);
   finalizable_ref->set_peer(peer);
@@ skipping 3207 matching lines @@
   *value = instance.GetNativeField(isolate, fld_index);
   return Api::Success();
 }
 
 
 DART_EXPORT Dart_Handle Dart_GetNativeReceiver(Dart_NativeArguments args,
                                                intptr_t* value) {
   NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
   Isolate* isolate = arguments->isolate();
   CHECK_ISOLATE(isolate);
-  ReusableObjectHandleScope reused_obj_handle(isolate);
-  Object& obj = reused_obj_handle.Handle();
-  obj = arguments->NativeArg0();
-  intptr_t cid = obj.GetClassId();
-  if (cid <= kNumPredefinedCids) {
-    if (cid == kNullCid) {
-      return Api::NewError("%s expects receiver argument to be non-null.",
-                           CURRENT_FUNC);
-    }
-    return Api::NewError("%s expects receiver argument to be of"
-                         " type Instance.", CURRENT_FUNC);
-  }
-  const Instance& instance = Instance::Cast(obj);
-  ASSERT(instance.IsValidNativeIndex(0));
   if (value == NULL) {
     RETURN_NULL_ERROR(value);
   }
-  *value = instance.GetNativeField(isolate, 0);
-  return Api::Success();
+  if (Api::GetNativeReceiver(args, value)) {
+    return Api::Success();
+  }
+  return Api::NewError("%s expects receiver argument to be non-null and of"
+                       " type Instance.", CURRENT_FUNC);
 }
 
 
 DART_EXPORT Dart_Handle Dart_GetNativeStringArgument(Dart_NativeArguments args,
                                                      int arg_index,
                                                      void** peer) {
   NativeArguments* arguments = reinterpret_cast<NativeArguments*>(args);
   Isolate* isolate = arguments->isolate();
   CHECK_ISOLATE(isolate);
   if (Api::StringGetPeerHelper(args, arg_index, peer)) {
@@ skipping 649 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success();
 }
 
 }  // namespace dart