1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5
6#include "src/snapshot/snapshot-source-sink.h"
7
8#include "src/base/logging.h"
9#include "src/handles/handles-inl.h"
10#include "src/objects/objects-inl.h"
11
12namespace v8 {
13namespace internal {
14
15void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) {
16  DCHECK_LT(integer, 1 << 30);
17  integer <<= 2;
18  int bytes = 1;
19  if (integer > 0xFF) bytes = 2;
20  if (integer > 0xFFFF) bytes = 3;
21  if (integer > 0xFFFFFF) bytes = 4;
22  integer |= (bytes - 1);
23  Put(static_cast<byte>(integer & 0xFF), "IntPart1");
24  if (bytes > 1) Put(static_cast<byte>((integer >> 8) & 0xFF), "IntPart2");
25  if (bytes > 2) Put(static_cast<byte>((integer >> 16) & 0xFF), "IntPart3");
26  if (bytes > 3) Put(static_cast<byte>((integer >> 24) & 0xFF), "IntPart4");
27}
28
29void SnapshotByteSink::PutRaw(const byte* data, int number_of_bytes,
30                              const char* description) {
31  data_.insert(data_.end(), data, data + number_of_bytes);
32}
33
34void SnapshotByteSink::Append(const SnapshotByteSink& other) {
35  data_.insert(data_.end(), other.data_.begin(), other.data_.end());
36}
37
38int SnapshotByteSource::GetBlob(const byte** data) {
39  int size = GetInt();
40  CHECK(position_ + size <= length_);
41  *data = &data_[position_];
42  Advance(size);
43  return size;
44}
45}  // namespace internal
46}  // namespace v8
47