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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 | 5 |
6 #include "src/snapshot-source-sink.h" | 6 #include "src/snapshot-source-sink.h" |
7 | 7 |
8 #include "src/base/logging.h" | 8 #include "src/base/logging.h" |
9 #include "src/handles-inl.h" | 9 #include "src/handles-inl.h" |
10 #include "src/serialize.h" // for SerializerDeserializer::nop() in AtEOF() | 10 #include "src/serialize.h" // for SerializerDeserializer::nop() in AtEOF() |
11 | 11 |
12 | 12 |
13 namespace v8 { | 13 namespace v8 { |
14 namespace internal { | 14 namespace internal { |
15 | 15 |
16 int32_t SnapshotByteSource::GetUnalignedInt() { | |
17 DCHECK(position_ < length_); // Require at least one byte left. | |
18 int32_t answer = data_[position_]; | |
19 answer |= data_[position_ + 1] << 8; | |
20 answer |= data_[position_ + 2] << 16; | |
21 answer |= data_[position_ + 3] << 24; | |
22 return answer; | |
23 } | |
24 | |
25 | |
26 void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) { | 16 void SnapshotByteSource::CopyRaw(byte* to, int number_of_bytes) { |
27 MemCopy(to, data_ + position_, number_of_bytes); | 17 MemCopy(to, data_ + position_, number_of_bytes); |
28 position_ += number_of_bytes; | 18 position_ += number_of_bytes; |
29 } | 19 } |
30 | 20 |
31 | 21 |
32 void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) { | 22 void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) { |
33 DCHECK(integer < 1 << 30); | 23 DCHECK(integer < 1 << 30); |
34 integer <<= 2; | 24 integer <<= 2; |
35 int bytes = 1; | 25 int bytes = 1; |
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68 Advance(size); | 58 Advance(size); |
69 return true; | 59 return true; |
70 } else { | 60 } else { |
71 Advance(length_ - position_); // proceed until end. | 61 Advance(length_ - position_); // proceed until end. |
72 return false; | 62 return false; |
73 } | 63 } |
74 } | 64 } |
75 | 65 |
76 } // namespace v8::internal | 66 } // namespace v8::internal |
77 } // namespace v8 | 67 } // namespace v8 |
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