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// Copyright 2017 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_SNAPSHOT_BUILTIN_SERIALIZER_ALLOCATOR_H_
#define V8_SNAPSHOT_BUILTIN_SERIALIZER_ALLOCATOR_H_
#include "src/snapshot/serializer-common.h"
namespace v8 {
namespace internal {
template <class AllocatorT>
class Serializer;
class BuiltinSerializerAllocator final {
public:
BuiltinSerializerAllocator(
Serializer<BuiltinSerializerAllocator>* serializer) {}
SerializerReference Allocate(AllocationSpace space, uint32_t size);
SerializerReference AllocateMap() { UNREACHABLE(); }
SerializerReference AllocateLargeObject(uint32_t size) { UNREACHABLE(); }
SerializerReference AllocateOffHeapBackingStore() { UNREACHABLE(); }
#ifdef DEBUG
bool BackReferenceIsAlreadyAllocated(
SerializerReference back_reference) const;
#endif
std::vector<SerializedData::Reservation> EncodeReservations() const;
void OutputStatistics();
private:
static constexpr int kNumberOfPreallocatedSpaces =
SerializerDeserializer::kNumberOfPreallocatedSpaces;
static constexpr int kNumberOfSpaces =
SerializerDeserializer::kNumberOfSpaces;
// We need to track a faked offset to create back-references. The size is
// kept simply to display statistics.
uint32_t virtual_chunk_size_ = 0;
uint32_t virtual_chunk_offset_ = 0;
DISALLOW_COPY_AND_ASSIGN(BuiltinSerializerAllocator)
};
} // namespace internal
} // namespace v8
#endif // V8_SNAPSHOT_BUILTIN_SERIALIZER_ALLOCATOR_H_
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