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// Copyright 2022 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.
#ifndef V8_OBJECTS_JS_STRUCT_H_
#define V8_OBJECTS_JS_STRUCT_H_
#include "src/objects/js-objects.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
#include "torque-generated/src/objects/js-struct-tq.inc"
class AlwaysSharedSpaceJSObject
: public TorqueGeneratedAlwaysSharedSpaceJSObject<AlwaysSharedSpaceJSObject,
JSObject> {
public:
// Prepare a Map to be used as the instance map for shared JS objects.
static void PrepareMapNoEnumerableProperties(Tagged<Map> map);
static void PrepareMapWithEnumerableProperties(
Isolate* isolate, Handle<Map> map, Handle<DescriptorArray> descriptors,
int enum_length);
V8_WARN_UNUSED_RESULT static Maybe<bool> DefineOwnProperty(
Isolate* isolate, Handle<AlwaysSharedSpaceJSObject> shared_obj,
Handle<Object> key, PropertyDescriptor* desc,
Maybe<ShouldThrow> should_throw);
// This is a generic `HasInstance` that checks the constructor's initial map
// against the object's map. It is on `AlwaysSharedSpaceJSObject` because this
// kind of instanceof resolution resolution is used only for shared objects.
static Maybe<bool> HasInstance(Isolate* isolate,
Handle<JSFunction> constructor,
Handle<Object> object);
static_assert(kHeaderSize == JSObject::kHeaderSize);
TQ_OBJECT_CONSTRUCTORS(AlwaysSharedSpaceJSObject)
};
class JSSharedStruct
: public TorqueGeneratedJSSharedStruct<JSSharedStruct,
AlwaysSharedSpaceJSObject> {
public:
DECL_CAST(JSSharedStruct)
DECL_PRINTER(JSSharedStruct)
EXPORT_DECL_VERIFIER(JSSharedStruct)
class BodyDescriptor;
TQ_OBJECT_CONSTRUCTORS(JSSharedStruct)
};
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_JS_STRUCT_H_
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