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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_ARRAY_INL_H_
#define V8_OBJECTS_PROPERTY_ARRAY_INL_H_
#include "src/objects/property-array.h"
#include "src/heap/heap-write-barrier-inl.h"
#include "src/objects/heap-object-inl.h"
#include "src/objects/objects-inl.h"
#include "src/objects/smi-inl.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
OBJECT_CONSTRUCTORS_IMPL(PropertyArray, HeapObject)
CAST_ACCESSOR(PropertyArray)
Object PropertyArray::get(int index) const {
DCHECK_LT(static_cast<unsigned>(index),
static_cast<unsigned>(this->length()));
return RELAXED_READ_FIELD(*this, OffsetOfElementAt(index));
}
void PropertyArray::set(int index, Object value) {
DCHECK(IsPropertyArray());
DCHECK_LT(static_cast<unsigned>(index),
static_cast<unsigned>(this->length()));
int offset = OffsetOfElementAt(index);
RELAXED_WRITE_FIELD(*this, offset, value);
WRITE_BARRIER(*this, offset, value);
}
void PropertyArray::set(int index, Object value, WriteBarrierMode mode) {
DCHECK_LT(static_cast<unsigned>(index),
static_cast<unsigned>(this->length()));
int offset = OffsetOfElementAt(index);
RELAXED_WRITE_FIELD(*this, offset, value);
CONDITIONAL_WRITE_BARRIER(*this, offset, value, mode);
}
ObjectSlot PropertyArray::data_start() { return RawField(kHeaderSize); }
int PropertyArray::length() const {
Object value_obj = READ_FIELD(*this, kLengthAndHashOffset);
int value = Smi::ToInt(value_obj);
return LengthField::decode(value);
}
void PropertyArray::initialize_length(int len) {
DCHECK_LT(static_cast<unsigned>(len),
static_cast<unsigned>(LengthField::kMax));
WRITE_FIELD(*this, kLengthAndHashOffset, Smi::FromInt(len));
}
int PropertyArray::synchronized_length() const {
Object value_obj = ACQUIRE_READ_FIELD(*this, kLengthAndHashOffset);
int value = Smi::ToInt(value_obj);
return LengthField::decode(value);
}
int PropertyArray::Hash() const {
Object value_obj = READ_FIELD(*this, kLengthAndHashOffset);
int value = Smi::ToInt(value_obj);
return HashField::decode(value);
}
void PropertyArray::SetHash(int hash) {
Object value_obj = READ_FIELD(*this, kLengthAndHashOffset);
int value = Smi::ToInt(value_obj);
value = HashField::update(value, hash);
WRITE_FIELD(*this, kLengthAndHashOffset, Smi::FromInt(value));
}
void PropertyArray::CopyElements(Isolate* isolate, int dst_index,
PropertyArray src, int src_index, int len,
WriteBarrierMode mode) {
if (len == 0) return;
DisallowHeapAllocation no_gc;
ObjectSlot dst_slot(data_start() + dst_index);
ObjectSlot src_slot(src.data_start() + src_index);
isolate->heap()->CopyRange(*this, dst_slot, src_slot, len, mode);
}
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_PROPERTY_ARRAY_INL_H_