Classes: Add support for arguments in default constructor

src/runtime/runtime-object.cc

 // Copyright 2014 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/v8.h"
 
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/debug.h"
 #include "src/runtime/runtime.h"
@@ skipping 224 matching lines @@
   if (name->AsArrayIndex(&index)) {
     return JSObject::SetElement(js_object, index, value, attr, SLOPPY, false,
                                 DEFINE_PROPERTY);
   } else {
     return JSObject::SetOwnPropertyIgnoreAttributes(js_object, name, value,
                                                     attr);
   }
 }
 
 
-RUNTIME_FUNCTION(Runtime_GetPrototype) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
-  CONVERT_ARG_HANDLE_CHECKED(Object, obj, 0);
+MaybeHandle<Object> Runtime::GetPrototype(Isolate* isolate,
+                                          Handle<Object> obj) {
   // We don't expect access checks to be needed on JSProxy objects.
   DCHECK(!obj->IsAccessCheckNeeded() || obj->IsJSObject());
   PrototypeIterator iter(isolate, obj, PrototypeIterator::START_AT_RECEIVER);
   do {
     if (PrototypeIterator::GetCurrent(iter)->IsAccessCheckNeeded() &&
         !isolate->MayNamedAccess(
             Handle<JSObject>::cast(PrototypeIterator::GetCurrent(iter)),
             isolate->factory()->proto_string(), v8::ACCESS_GET)) {
       isolate->ReportFailedAccessCheck(
           Handle<JSObject>::cast(PrototypeIterator::GetCurrent(iter)),
           v8::ACCESS_GET);
-      RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate);
-      return isolate->heap()->undefined_value();
+      RETURN_EXCEPTION_IF_SCHEDULED_EXCEPTION(isolate, Object);
+      return isolate->factory()->undefined_value();
     }
     iter.AdvanceIgnoringProxies();
     if (PrototypeIterator::GetCurrent(iter)->IsJSProxy()) {
-      return *PrototypeIterator::GetCurrent(iter);
+      return PrototypeIterator::GetCurrent(iter);
     }
   } while (!iter.IsAtEnd(PrototypeIterator::END_AT_NON_HIDDEN));
-  return *PrototypeIterator::GetCurrent(iter);
+  return PrototypeIterator::GetCurrent(iter);
 }
 
 
+RUNTIME_FUNCTION(Runtime_GetPrototype) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 1);
+  CONVERT_ARG_HANDLE_CHECKED(Object, obj, 0);
+  Handle<Object> result;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
+                                     Runtime::GetPrototype(isolate, obj));
+  return *result;
+}
+
+
 RUNTIME_FUNCTION(Runtime_InternalSetPrototype) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, prototype, 1);
   DCHECK(!obj->IsAccessCheckNeeded());
   DCHECK(!obj->map()->is_observed());
   Handle<Object> result;
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, result, JSObject::SetPrototype(obj, prototype, false));
@@ skipping 1298 matching lines @@
 
 RUNTIME_FUNCTION(RuntimeReference_ClassOf) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_ARG_CHECKED(Object, obj, 0);
   if (!obj->IsJSReceiver()) return isolate->heap()->null_value();
   return JSReceiver::cast(obj)->class_name();
 }
 }
 }  // namespace v8::internal