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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* array, int length); | 22 SnapshotByteSource(const byte* data, int length) |
23 ~SnapshotByteSource(); | 23 : data_(data), length_(length), position_(0) {} |
| 24 |
| 25 explicit SnapshotByteSource(Vector<const byte> payload) |
| 26 : data_(payload.start()), length_(payload.length()), position_(0) {} |
| 27 |
| 28 ~SnapshotByteSource() {} |
24 | 29 |
25 bool HasMore() { return position_ < length_; } | 30 bool HasMore() { return position_ < length_; } |
26 | 31 |
27 byte Get() { | 32 byte Get() { |
28 DCHECK(position_ < length_); | 33 DCHECK(position_ < length_); |
29 return data_[position_++]; | 34 return data_[position_++]; |
30 } | 35 } |
31 | 36 |
32 int32_t GetUnalignedInt(); | 37 int32_t GetUnalignedInt(); |
33 | 38 |
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76 ~SnapshotByteSink() {} | 81 ~SnapshotByteSink() {} |
77 | 82 |
78 void Put(byte b, const char* description) { data_.Add(b); } | 83 void Put(byte b, const char* description) { data_.Add(b); } |
79 | 84 |
80 void PutSection(int b, const char* description) { | 85 void PutSection(int b, const char* description) { |
81 DCHECK_LE(b, kMaxUInt8); | 86 DCHECK_LE(b, kMaxUInt8); |
82 Put(static_cast<byte>(b), description); | 87 Put(static_cast<byte>(b), description); |
83 } | 88 } |
84 | 89 |
85 void PutInt(uintptr_t integer, const char* description); | 90 void PutInt(uintptr_t integer, const char* description); |
86 void PutRaw(byte* data, int number_of_bytes, const char* description); | 91 void PutRaw(const byte* data, int number_of_bytes, const char* description); |
87 void PutBlob(byte* data, int number_of_bytes, const char* description); | 92 void PutBlob(Vector<const byte> blob, const char* description); |
88 int Position() { return data_.length(); } | 93 int Position() { return data_.length(); } |
89 | 94 |
90 const List<byte>& data() const { return data_; } | 95 const List<byte>& data() const { return data_; } |
91 | 96 |
92 private: | 97 private: |
93 List<byte> data_; | 98 List<byte> data_; |
94 }; | 99 }; |
95 | 100 |
96 } // namespace v8::internal | 101 } // namespace v8::internal |
97 } // namespace v8 | 102 } // namespace v8 |
98 | 103 |
99 #endif // V8_SNAPSHOT_SOURCE_SINK_H_ | 104 #endif // V8_SNAPSHOT_SOURCE_SINK_H_ |
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