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class Map;
// Alias for HeapObject::IsMap() that avoids inlining.
V8_EXPORT_PRIVATE bool IsMap_NonInline(HeapObject o);
template <class D, class P>
class TorqueGeneratedMap : public P {
static_assert(std::is_same<Map, D>::value,
"Use this class as direct base for Map.");
static_assert(std::is_same<HeapObject, P>::value,
"Pass in HeapObject as second template parameter for TorqueGeneratedMap.");
public:
using Super = P;
using TorqueGeneratedClass = TorqueGeneratedMap<D,P>;
inline uint8_t instance_size_in_words() const;
inline void set_instance_size_in_words(uint8_t value);
inline uint8_t inobject_properties_start_or_constructor_function_index() const;
inline void set_inobject_properties_start_or_constructor_function_index(uint8_t value);
inline uint8_t used_or_unused_instance_size_in_words() const;
inline void set_used_or_unused_instance_size_in_words(uint8_t value);
inline uint8_t visitor_id() const;
inline void set_visitor_id(uint8_t value);
inline InstanceType instance_type() const;
inline void set_instance_type(InstanceType value);
inline uint8_t bit_field() const;
inline void set_bit_field(uint8_t value);
inline uint8_t bit_field2() const;
inline void set_bit_field2(uint8_t value);
inline uint32_t bit_field3() const;
inline void set_bit_field3(uint32_t value);
inline uint32_t optional_padding() const;
inline void set_optional_padding(uint32_t value);
// Torque type: (class JSReceiver | Null)
inline HeapObject prototype() const;
inline HeapObject prototype(PtrComprCageBase cage_base) const;
inline void set_prototype(HeapObject value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
inline Object constructor_or_back_pointer_or_native_context() const;
inline Object constructor_or_back_pointer_or_native_context(PtrComprCageBase cage_base) const;
inline void set_constructor_or_back_pointer_or_native_context(Object value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
inline DescriptorArray instance_descriptors() const;
inline DescriptorArray instance_descriptors(PtrComprCageBase cage_base) const;
inline void set_instance_descriptors(DescriptorArray value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
// Torque type: DependentCode
inline WeakFixedArray dependent_code() const;
inline WeakFixedArray dependent_code(PtrComprCageBase cage_base) const;
inline void set_dependent_code(WeakFixedArray value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
// Torque type: (Smi | class Cell)
inline Object prototype_validity_cell() const;
inline Object prototype_validity_cell(PtrComprCageBase cage_base) const;
inline void set_prototype_validity_cell(Object value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
// Torque type: (Smi | class TransitionArray | class Map | Weak<class Map> | class PrototypeInfo)
inline MaybeObject transitions_or_prototype_info() const;
inline MaybeObject transitions_or_prototype_info(PtrComprCageBase cage_base) const;
inline void set_transitions_or_prototype_info(MaybeObject value, WriteBarrierMode mode = UPDATE_WRITE_BARRIER);
V8_INLINE static D cast(Object object) {
return D(object.ptr());
}
V8_INLINE static D unchecked_cast(Object object) {
return bit_cast<D>(object);
}
#ifdef VERIFY_HEAP
V8_EXPORT_PRIVATE void MapVerify(Isolate* isolate);
#endif // VERIFY_HEAP
static constexpr int kInstanceSizeInWordsOffset = P::kHeaderSize;
static constexpr int kInstanceSizeInWordsOffsetEnd = kInstanceSizeInWordsOffset + kUInt8Size - 1;
static constexpr int kInobjectPropertiesStartOrConstructorFunctionIndexOffset = kInstanceSizeInWordsOffsetEnd + 1;
static constexpr int kInobjectPropertiesStartOrConstructorFunctionIndexOffsetEnd = kInobjectPropertiesStartOrConstructorFunctionIndexOffset + kUInt8Size - 1;
static constexpr int kUsedOrUnusedInstanceSizeInWordsOffset = kInobjectPropertiesStartOrConstructorFunctionIndexOffsetEnd + 1;
static constexpr int kUsedOrUnusedInstanceSizeInWordsOffsetEnd = kUsedOrUnusedInstanceSizeInWordsOffset + kUInt8Size - 1;
static constexpr int kVisitorIdOffset = kUsedOrUnusedInstanceSizeInWordsOffsetEnd + 1;
static constexpr int kVisitorIdOffsetEnd = kVisitorIdOffset + kUInt8Size - 1;
static constexpr int kInstanceTypeOffset = kVisitorIdOffsetEnd + 1;
static constexpr int kInstanceTypeOffsetEnd = kInstanceTypeOffset + kUInt16Size - 1;
static constexpr int kBitFieldOffset = kInstanceTypeOffsetEnd + 1;
static constexpr int kBitFieldOffsetEnd = kBitFieldOffset + kUInt8Size - 1;
static constexpr int kBitField2Offset = kBitFieldOffsetEnd + 1;
static constexpr int kBitField2OffsetEnd = kBitField2Offset + kUInt8Size - 1;
static constexpr int kBitField3Offset = kBitField2OffsetEnd + 1;
static constexpr int kBitField3OffsetEnd = kBitField3Offset + kInt32Size - 1;
static constexpr int kOptionalPaddingOffset = kBitField3OffsetEnd + 1;
static constexpr int kOptionalPaddingOffsetEnd = kOptionalPaddingOffset + kInt32Size - 1;
static constexpr int kStartOfStrongFieldsOffset = kOptionalPaddingOffsetEnd + 1;
static constexpr int kPrototypeOffset = kOptionalPaddingOffsetEnd + 1;
static constexpr int kPrototypeOffsetEnd = kPrototypeOffset + kTaggedSize - 1;
static constexpr int kConstructorOrBackPointerOrNativeContextOffset = kPrototypeOffsetEnd + 1;
static constexpr int kConstructorOrBackPointerOrNativeContextOffsetEnd = kConstructorOrBackPointerOrNativeContextOffset + kTaggedSize - 1;
static constexpr int kInstanceDescriptorsOffset = kConstructorOrBackPointerOrNativeContextOffsetEnd + 1;
static constexpr int kInstanceDescriptorsOffsetEnd = kInstanceDescriptorsOffset + kTaggedSize - 1;
static constexpr int kDependentCodeOffset = kInstanceDescriptorsOffsetEnd + 1;
static constexpr int kDependentCodeOffsetEnd = kDependentCodeOffset + kTaggedSize - 1;
static constexpr int kPrototypeValidityCellOffset = kDependentCodeOffsetEnd + 1;
static constexpr int kPrototypeValidityCellOffsetEnd = kPrototypeValidityCellOffset + kTaggedSize - 1;
static constexpr int kEndOfStrongFieldsOffset = kPrototypeValidityCellOffsetEnd + 1;
static constexpr int kStartOfWeakFieldsOffset = kPrototypeValidityCellOffsetEnd + 1;
static constexpr int kTransitionsOrPrototypeInfoOffset = kPrototypeValidityCellOffsetEnd + 1;
static constexpr int kTransitionsOrPrototypeInfoOffsetEnd = kTransitionsOrPrototypeInfoOffset + kTaggedSize - 1;
static constexpr int kEndOfWeakFieldsOffset = kTransitionsOrPrototypeInfoOffsetEnd + 1;
static constexpr int kHeaderSize = kTransitionsOrPrototypeInfoOffsetEnd + 1;
static constexpr int kSize = kTransitionsOrPrototypeInfoOffsetEnd + 1;
V8_INLINE static constexpr int32_t SizeFor() {
DCHECK(kHeaderSize == kSize && kHeaderSize == 72);
int32_t size = kHeaderSize;
return size;
}
V8_INLINE int32_t AllocatedSize() const {
return SizeFor();
}
friend class Factory;
public:
template <class DAlias = D>
constexpr TorqueGeneratedMap() : P() {
static_assert(std::is_base_of<TorqueGeneratedMap,
DAlias>::value,
"class TorqueGeneratedMap should be used as direct base for Map.");
}
protected:
inline explicit TorqueGeneratedMap(Address ptr);
// Special-purpose constructor for subclasses that have fast paths where
// their ptr() is a Smi.
inline explicit TorqueGeneratedMap(Address ptr, HeapObject::AllowInlineSmiStorage allow_smi);
};
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