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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 #ifndef V8_SNAPSHOT_SOURCE_SINK_H_ | 5 #ifndef V8_SNAPSHOT_SOURCE_SINK_H_ |
6 #define V8_SNAPSHOT_SOURCE_SINK_H_ | 6 #define V8_SNAPSHOT_SOURCE_SINK_H_ |
7 | 7 |
8 #include "src/base/logging.h" | 8 #include "src/base/logging.h" |
9 #include "src/utils.h" | 9 #include "src/utils.h" |
10 | 10 |
11 namespace v8 { | 11 namespace v8 { |
12 namespace internal { | 12 namespace internal { |
13 | 13 |
14 | 14 |
15 /** | 15 /** |
16 * Source to read snapshot and builtins files from. | 16 * Source to read snapshot and builtins files from. |
17 * | 17 * |
18 * Note: Memory ownership remains with callee. | 18 * Note: Memory ownership remains with callee. |
19 */ | 19 */ |
20 class SnapshotByteSource FINAL { | 20 class SnapshotByteSource FINAL { |
21 public: | 21 public: |
22 SnapshotByteSource(const byte* data, int length) | 22 SnapshotByteSource(const byte* array, int length); |
23 : data_(data), length_(length), position_(0) {} | 23 ~SnapshotByteSource(); |
24 | |
25 explicit SnapshotByteSource(Vector<const byte> payload) | |
26 : data_(payload.start()), length_(payload.length()), position_(0) {} | |
27 | |
28 ~SnapshotByteSource() {} | |
29 | 24 |
30 bool HasMore() { return position_ < length_; } | 25 bool HasMore() { return position_ < length_; } |
31 | 26 |
32 byte Get() { | 27 byte Get() { |
33 DCHECK(position_ < length_); | 28 DCHECK(position_ < length_); |
34 return data_[position_++]; | 29 return data_[position_++]; |
35 } | 30 } |
36 | 31 |
37 int32_t GetUnalignedInt(); | 32 int32_t GetUnalignedInt(); |
38 | 33 |
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81 ~SnapshotByteSink() {} | 76 ~SnapshotByteSink() {} |
82 | 77 |
83 void Put(byte b, const char* description) { data_.Add(b); } | 78 void Put(byte b, const char* description) { data_.Add(b); } |
84 | 79 |
85 void PutSection(int b, const char* description) { | 80 void PutSection(int b, const char* description) { |
86 DCHECK_LE(b, kMaxUInt8); | 81 DCHECK_LE(b, kMaxUInt8); |
87 Put(static_cast<byte>(b), description); | 82 Put(static_cast<byte>(b), description); |
88 } | 83 } |
89 | 84 |
90 void PutInt(uintptr_t integer, const char* description); | 85 void PutInt(uintptr_t integer, const char* description); |
91 void PutRaw(const byte* data, int number_of_bytes, const char* description); | 86 void PutRaw(byte* data, int number_of_bytes, const char* description); |
92 void PutBlob(Vector<const byte> blob, const char* description); | 87 void PutBlob(byte* data, int number_of_bytes, const char* description); |
93 int Position() { return data_.length(); } | 88 int Position() { return data_.length(); } |
94 | 89 |
95 const List<byte>& data() const { return data_; } | 90 const List<byte>& data() const { return data_; } |
96 | 91 |
97 private: | 92 private: |
98 List<byte> data_; | 93 List<byte> data_; |
99 }; | 94 }; |
100 | 95 |
101 } // namespace v8::internal | 96 } // namespace v8::internal |
102 } // namespace v8 | 97 } // namespace v8 |
103 | 98 |
104 #endif // V8_SNAPSHOT_SOURCE_SINK_H_ | 99 #endif // V8_SNAPSHOT_SOURCE_SINK_H_ |
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