V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
snapshot-source-sink.cc
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-inl.h"
10 #include "src/objects-inl.h"
11 
12 namespace v8 {
13 namespace internal {
14 
15 void 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<int>(integer & 0xFF), "IntPart1");
24  if (bytes > 1) Put(static_cast<int>((integer >> 8) & 0xFF), "IntPart2");
25  if (bytes > 2) Put(static_cast<int>((integer >> 16) & 0xFF), "IntPart3");
26  if (bytes > 3) Put(static_cast<int>((integer >> 24) & 0xFF), "IntPart4");
27 }
28 
29 
30 void SnapshotByteSink::PutRaw(const byte* data, int number_of_bytes,
31  const char* description) {
32  data_.insert(data_.end(), data, data + number_of_bytes);
33 }
34 
35 void SnapshotByteSink::Append(const SnapshotByteSink& other) {
36  data_.insert(data_.end(), other.data_.begin(), other.data_.end());
37 }
38 
39 int SnapshotByteSource::GetBlob(const byte** data) {
40  int size = GetInt();
41  CHECK(position_ + size <= length_);
42  *data = &data_[position_];
43  Advance(size);
44  return size;
45 }
46 } // namespace internal
47 } // namespace v8
Definition: libplatform.h:13