Map v8::Object to v8::internal::JSReceiver

src/objects.cc

 // Copyright 2013 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/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 2149 matching lines @@
   // If the constructor is not present, return "Object".
   return GetHeap()->Object_string();
 }
 
 
 String* JSReceiver::constructor_name() {
   return map()->constructor_name();
 }
 
 
+Context* JSReceiver::GetCreationContext() {
+  Object* constructor = map()->GetConstructor();
+  JSFunction* function;
+  if (!constructor->IsJSFunction()) {
+    // Functions have null as a constructor,
+    // but any JSFunction knows its context immediately.
+    function = JSFunction::cast(this);
+  } else {
+    function = JSFunction::cast(constructor);
+  }
+
+  return function->context()->native_context();
+}
+
+
 static Handle<Object> WrapType(Handle<HeapType> type) {
   if (type->IsClass()) return Map::WeakCellForMap(type->AsClass()->Map());
   return type;
 }
 
 
 MaybeHandle<Map> Map::CopyWithField(Handle<Map> map,
                                     Handle<Name> name,
                                     Handle<HeapType> type,
                                     PropertyAttributes attributes,
@@ skipping 84 matching lines @@
   } else {
     Handle<NameDictionary> dict(object->property_dictionary());
     PropertyDetails details(attributes, DATA, 0, PropertyCellType::kNoCell);
     Handle<NameDictionary> result =
         NameDictionary::Add(dict, name, value, details);
     if (*dict != *result) object->set_properties(*result);
   }
 }
 
 
-Context* JSObject::GetCreationContext() {
-  Object* constructor = this->map()->GetConstructor();
-  JSFunction* function;
-  if (!constructor->IsJSFunction()) {
-    // Functions have null as a constructor,
-    // but any JSFunction knows its context immediately.
-    function = JSFunction::cast(this);
-  } else {
-    function = JSFunction::cast(constructor);
-  }
-
-  return function->context()->native_context();
-}
-
-
 MaybeHandle<Object> JSObject::EnqueueChangeRecord(Handle<JSObject> object,
                                                   const char* type_str,
                                                   Handle<Name> name,
                                                   Handle<Object> old_value) {
   DCHECK(!object->IsJSGlobalProxy());
   DCHECK(!object->IsJSGlobalObject());
   Isolate* isolate = object->GetIsolate();
   HandleScope scope(isolate);
   Handle<String> type = isolate->factory()->InternalizeUtf8String(type_str);
   Handle<Object> args[] = { type, object, name, old_value };
@@ skipping 4089 matching lines @@
           JSObject::DefineAccessor(it, getter, setter, attrs);
       if (result.is_null()) return false;
     }
   }
 
   // 11. Return true.
   return true;
 }
 
 
+// static
+Maybe<bool> JSReceiver::CreateDataProperty(LookupIterator* it,
+                                           Handle<Object> value) {
+  // TODO(rossberg): Support proxies.
+  if (!it->GetReceiver()->IsJSObject()) return Nothing<bool>();
+  return JSObject::CreateDataProperty(it, value);
+}
+
+
 // TODO(jkummerow): Consider unification with FastAsArrayLength() in
 // accessors.cc.
 bool PropertyKeyToArrayLength(Handle<Object> value, uint32_t* length) {
   DCHECK(value->IsNumber() || value->IsName());
   if (value->ToArrayLength(length)) return true;
   if (value->IsString()) return String::cast(*value)->AsArrayIndex(length);
   return false;
 }
 
 
@@ skipping 8225 matching lines @@
   v8::Local<v8::Object> result;
   if (!interceptor->enumerator()->IsUndefined()) {
     v8::GenericNamedPropertyEnumeratorCallback enum_fun =
         v8::ToCData<v8::GenericNamedPropertyEnumeratorCallback>(
             interceptor->enumerator());
     LOG(isolate, ApiObjectAccess("interceptor-named-enum", *object));
     result = args.Call(enum_fun);
   }
   if (result.IsEmpty()) return MaybeHandle<JSObject>();
   DCHECK(v8::Utils::OpenHandle(*result)->IsJSArray() ||
-         v8::Utils::OpenHandle(*result)->HasSloppyArgumentsElements());
+         (v8::Utils::OpenHandle(*result)->IsJSObject() &&
+          Handle<JSObject>::cast(v8::Utils::OpenHandle(*result))
+              ->HasSloppyArgumentsElements()));
   // Rebox before returning.
-  return handle(*v8::Utils::OpenHandle(*result), isolate);
+  return handle(JSObject::cast(*v8::Utils::OpenHandle(*result)), isolate);
 }
 
 
 // Compute the element keys from the interceptor.
 MaybeHandle<JSObject> JSObject::GetKeysForIndexedInterceptor(
     Handle<JSObject> object, Handle<JSReceiver> receiver) {
   Isolate* isolate = receiver->GetIsolate();
   Handle<InterceptorInfo> interceptor(object->GetIndexedInterceptor());
   PropertyCallbackArguments
       args(isolate, interceptor->data(), *receiver, *object);
   v8::Local<v8::Object> result;
   if (!interceptor->enumerator()->IsUndefined()) {
     v8::IndexedPropertyEnumeratorCallback enum_fun =
         v8::ToCData<v8::IndexedPropertyEnumeratorCallback>(
             interceptor->enumerator());
     LOG(isolate, ApiObjectAccess("interceptor-indexed-enum", *object));
     result = args.Call(enum_fun);
   }
   if (result.IsEmpty()) return MaybeHandle<JSObject>();
   DCHECK(v8::Utils::OpenHandle(*result)->IsJSArray() ||
-         v8::Utils::OpenHandle(*result)->HasSloppyArgumentsElements());
+         (v8::Utils::OpenHandle(*result)->IsJSObject() &&
+          Handle<JSObject>::cast(v8::Utils::OpenHandle(*result))
+              ->HasSloppyArgumentsElements()));
   // Rebox before returning.
-  return handle(*v8::Utils::OpenHandle(*result), isolate);
+  return handle(JSObject::cast(*v8::Utils::OpenHandle(*result)), isolate);
 }
 
 
 Maybe<bool> JSObject::HasRealNamedProperty(Handle<JSObject> object,
                                            Handle<Name> name) {
   LookupIterator it = LookupIterator::PropertyOrElement(
       name->GetIsolate(), object, name, LookupIterator::OWN_SKIP_INTERCEPTOR);
   return HasProperty(&it);
 }
 
@@ skipping 3203 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8