// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/snapshot/builtin-serializer-allocator.h"
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#include "src/heap/heap-inl.h"
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namespace v8 {
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namespace internal {
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SerializerReference BuiltinSerializerAllocator::Allocate(AllocationSpace space,
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uint32_t size) {
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DCHECK_EQ(space, CODE_SPACE);
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DCHECK_GT(size, 0);
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// Builtin serialization & deserialization does not use the reservation
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// system. Instead of worrying about chunk indices and offsets, we simply
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// need to generate unique offsets here.
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const auto ref =
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SerializerReference::BuiltinReference(next_builtin_reference_index_);
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allocated_bytes_ += size;
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next_builtin_reference_index_++;
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return ref;
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}
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#ifdef DEBUG
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bool BuiltinSerializerAllocator::BackReferenceIsAlreadyAllocated(
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SerializerReference reference) const {
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DCHECK(reference.is_builtin_reference());
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return reference.builtin_index() < next_builtin_reference_index_;
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}
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#endif // DEBUG
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std::vector<SerializedData::Reservation>
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BuiltinSerializerAllocator::EncodeReservations() const {
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return std::vector<SerializedData::Reservation>();
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}
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void BuiltinSerializerAllocator::OutputStatistics() {
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DCHECK(FLAG_serialization_statistics);
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PrintF(" Spaces (bytes):\n");
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for (int space = FIRST_SPACE; space < kNumberOfSpaces; space++) {
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PrintF("%16s", AllocationSpaceName(static_cast<AllocationSpace>(space)));
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}
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PrintF("\n");
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for (int space = FIRST_SPACE; space < kNumberOfSpaces; space++) {
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uint32_t space_size = (space == CODE_SPACE) ? allocated_bytes_ : 0;
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PrintF("%16d", space_size);
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}
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PrintF("\n");
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}
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} // namespace internal
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} // namespace v8
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