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// Copyright 2018 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_PROPERTY_CELL_H_
#define V8_OBJECTS_PROPERTY_CELL_H_
#include "src/objects/heap-object.h"
#include "torque-generated/field-offsets-tq.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
class PropertyCell : public HeapObject {
public:
// [name]: the name of the global property.
DECL_ACCESSORS(name, Name)
// [property_details]: details of the global property.
DECL_ACCESSORS(property_details_raw, Smi)
// [value]: value of the global property.
DECL_ACCESSORS(value, Object)
// [dependent_code]: dependent code that depends on the type of the global
// property.
DECL_ACCESSORS(dependent_code, DependentCode)
inline PropertyDetails property_details() const;
inline void set_property_details(PropertyDetails details);
PropertyCellConstantType GetConstantType();
// Computes the new type of the cell's contents for the given value, but
// without actually modifying the details.
static PropertyCellType UpdatedType(Isolate* isolate,
Handle<PropertyCell> cell,
Handle<Object> value,
PropertyDetails details);
// Prepares property cell at given entry for receiving given value.
// As a result the old cell could be invalidated and/or dependent code could
// be deoptimized. Returns the prepared property cell.
static Handle<PropertyCell> PrepareForValue(
Isolate* isolate, Handle<GlobalDictionary> dictionary, int entry,
Handle<Object> value, PropertyDetails details);
static Handle<PropertyCell> InvalidateEntry(
Isolate* isolate, Handle<GlobalDictionary> dictionary, int entry);
static void SetValueWithInvalidation(Isolate* isolate, const char* cell_name,
Handle<PropertyCell> cell,
Handle<Object> new_value);
DECL_CAST(PropertyCell)
// Dispatched behavior.
DECL_PRINTER(PropertyCell)
DECL_VERIFIER(PropertyCell)
DEFINE_FIELD_OFFSET_CONSTANTS(HeapObject::kHeaderSize,
TORQUE_GENERATED_PROPERTY_CELL_FIELDS)
using BodyDescriptor = FixedBodyDescriptor<kNameOffset, kSize, kSize>;
OBJECT_CONSTRUCTORS(PropertyCell, HeapObject);
};
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_PROPERTY_CELL_H_
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