[builtins] Migrate Object.setPrototypeOf to C++.

src/builtins/builtins-object.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/builtins/builtins.h"
 #include "src/builtins/builtins-utils.h"
 
 #include "src/code-factory.h"
 #include "src/property-descriptor.h"
 
@@ skipping 670 matching lines @@
   Handle<Object> object = args.atOrUndefined(isolate, 1);
 
   Handle<JSReceiver> receiver;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver,
                                      Object::ToObject(isolate, object));
 
   RETURN_RESULT_OR_FAILURE(isolate,
                            JSReceiver::GetPrototype(isolate, receiver));
 }
 
+// ES6 section 19.1.2.21 Object.setPrototypeOf ( O, proto )
+BUILTIN(ObjectSetPrototypeOf) {
+  HandleScope scope(isolate);
+
+  // 1. Let O be ? RequireObjectCoercible(O).
+  Handle<Object> object = args.atOrUndefined(isolate, 1);
+  if (object->IsNull(isolate) || object->IsUndefined(isolate)) {
+    THROW_NEW_ERROR_RETURN_FAILURE(
+        isolate, NewTypeError(MessageTemplate::kCalledOnNullOrUndefined,
+                              isolate->factory()->NewStringFromAsciiChecked(
+                                  "Object.setPrototypeOf")));
+  }
+
+  // 2. If Type(proto) is neither Object nor Null, throw a TypeError exception.
+  Handle<Object> proto = args.atOrUndefined(isolate, 2);
+  if (!proto->IsNull(isolate) && !proto->IsJSReceiver()) {
+    THROW_NEW_ERROR_RETURN_FAILURE(
+        isolate, NewTypeError(MessageTemplate::kProtoObjectOrNull, proto));
+  }
+
+  // 3. If Type(O) is not Object, return O.
+  if (!object->IsJSReceiver()) return *object;
+  Handle<JSReceiver> receiver = Handle<JSReceiver>::cast(object);
+
+  // 4. Let status be ? O.[[SetPrototypeOf]](proto).
+  // 5. If status is false, throw a TypeError exception.
+  MAYBE_RETURN(
+      JSReceiver::SetPrototype(receiver, proto, true, Object::THROW_ON_ERROR),
+      isolate->heap()->exception());
+
+  // 6. Return O.
+  return *receiver;
+}
+
 // ES6 section 19.1.2.6 Object.getOwnPropertyDescriptor ( O, P )
 BUILTIN(ObjectGetOwnPropertyDescriptor) {
   HandleScope scope(isolate);
   // 1. Let obj be ? ToObject(O).
   Handle<Object> object = args.atOrUndefined(isolate, 1);
   Handle<JSReceiver> receiver;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver,
                                      Object::ToObject(isolate, object));
   // 2. Let key be ? ToPropertyKey(P).
   Handle<Object> property = args.atOrUndefined(isolate, 2);
@@ skipping 233 matching lines @@
   typedef CompareDescriptor Descriptor;
   Node* object = assembler->Parameter(Descriptor::kLeft);
   Node* callable = assembler->Parameter(Descriptor::kRight);
   Node* context = assembler->Parameter(Descriptor::kContext);
 
   assembler->Return(assembler->InstanceOf(object, callable, context));
 }
 
 }  // namespace internal
 }  // namespace v8