Add a function Dart_AllocateWithNativeFields which allocates an object and sets the native fields i…

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 3578 matching lines @@
   if (constructor.IsConstructor()) {
     ASSERT(result.IsNull());
   } else {
     ASSERT(result.IsNull() || result.IsInstance());
     new_object ^= result.raw();
   }
   return Api::NewHandle(isolate, new_object.raw());
 }
 
 
-DART_EXPORT Dart_Handle Dart_Allocate(Dart_Handle type) {
-  Isolate* isolate = Isolate::Current();
-  DARTSCOPE(isolate);
-  CHECK_CALLBACK_STATE(isolate);
-
-  const Type& type_obj = Api::UnwrapTypeHandle(isolate, type);
-  // Get the class to instantiate.
-  if (type_obj.IsNull()) {
-    RETURN_TYPE_ERROR(isolate, type, Type);
-  }
-  const Class& cls = Class::Handle(isolate, type_obj.type_class());
-  const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate));
-  if (!error.IsNull()) {
-    // An error occurred, return error object.
-    return Api::NewHandle(isolate, error.raw());
-  }
-
+static RawInstance* AllocateObject(Isolate* isolate, const Class& cls) {
   if (!cls.is_fields_marked_nullable()) {
     // Mark all fields as nullable.
     Class& iterate_cls = Class::Handle(isolate, cls.raw());
     Field& field = Field::Handle(isolate);
     Array& fields = Array::Handle(isolate);
     while (!iterate_cls.IsNull()) {
       ASSERT(iterate_cls.is_finalized());
       iterate_cls.set_is_fields_marked_nullable();
       fields = iterate_cls.fields();
       iterate_cls = iterate_cls.SuperClass();
       for (int field_num = 0; field_num < fields.Length(); field_num++) {
         field ^= fields.At(field_num);
         if (field.is_static()) {
           continue;
         }
         field.RecordStore(Object::null_object());
       }
     }
   }
 
   // Allocate an object for the given class.
-  return Api::NewHandle(isolate, Instance::New(cls));
+  return Instance::New(cls);
+}
+
+
+DART_EXPORT Dart_Handle Dart_Allocate(Dart_Handle type) {
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+  CHECK_CALLBACK_STATE(isolate);
+
+  const Type& type_obj = Api::UnwrapTypeHandle(isolate, type);
+  // Get the class to instantiate.
+  if (type_obj.IsNull()) {
+    RETURN_TYPE_ERROR(isolate, type, Type);
+  }
+  const Class& cls = Class::Handle(isolate, type_obj.type_class());
+  const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate));
+  if (!error.IsNull()) {
+    // An error occurred, return error object.
+    return Api::NewHandle(isolate, error.raw());
+  }
+  return Api::NewHandle(isolate, AllocateObject(isolate, cls));
+}
+
+
+DART_EXPORT Dart_Handle Dart_AllocateWithNativeFields(
+    Dart_Handle type,
+    intptr_t num_native_fields,
+    const intptr_t* native_fields) {
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+  CHECK_CALLBACK_STATE(isolate);
+
+  const Type& type_obj = Api::UnwrapTypeHandle(isolate, type);
+  // Get the class to instantiate.
+  if (type_obj.IsNull()) {
+    RETURN_TYPE_ERROR(isolate, type, Type);
+  }
+  if (native_fields == NULL) {
+    RETURN_NULL_ERROR(native_fields);
+  }
+  const Class& cls = Class::Handle(isolate, type_obj.type_class());
+  const Error& error = Error::Handle(isolate, cls.EnsureIsFinalized(isolate));
+  if (!error.IsNull()) {
+    // An error occurred, return error object.
+    return Api::NewHandle(isolate, error.raw());
+  }
+  if (num_native_fields != cls.num_native_fields()) {
+    return Api::NewError(
+        "%s: invalid number of native fields %d passed in, expected %d",
+        CURRENT_FUNC, num_native_fields, cls.num_native_fields());
+  }
+  const Instance& instance = Instance::Handle(isolate,
+                                              AllocateObject(isolate, cls));
+  instance.SetNativeFields(num_native_fields, native_fields);
+  return Api::NewHandle(isolate, instance.raw());
 }
 
 
 static Dart_Handle SetupArguments(Isolate* isolate,
                                   int num_args,
                                   Dart_Handle* arguments,
                                   int extra_args,
                                   Array* args) {
   // Check for malformed arguments in the arguments list.
   *args = Array::New(num_args + extra_args);
@@ skipping 1571 matching lines @@
 
 
 DART_EXPORT void Dart_RegisterRootServiceRequestCallback(
     const char* name,
     Dart_ServiceRequestCallback callback,
     void* user_data) {
   Service::RegisterRootEmbedderCallback(name, callback, user_data);
 }
 
 }  // namespace dart