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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_PREPARSER_DATA_H_ | 28 #ifndef V8_PREPARSE_DATA_H_ |
29 #define V8_PREPARSER_DATA_H_ | 29 #define V8_PREPARSE_DATA_H_ |
30 | 30 |
31 #include "hashmap.h" | 31 #include "hashmap.h" |
32 #include "utils-inl.h" | 32 #include "utils-inl.h" |
33 | 33 |
34 namespace v8 { | 34 namespace v8 { |
35 namespace internal { | 35 namespace internal { |
36 | 36 |
37 // Generic and general data used by preparse data recorders and readers. | |
38 | |
39 class PreparseDataConstants : public AllStatic { | |
40 public: | |
41 // Layout and constants of the preparse data exchange format. | |
42 static const unsigned kMagicNumber = 0xBadDead; | |
43 static const unsigned kCurrentVersion = 6; | |
44 | |
45 static const int kMagicOffset = 0; | |
46 static const int kVersionOffset = 1; | |
47 static const int kHasErrorOffset = 2; | |
48 static const int kFunctionsSizeOffset = 3; | |
49 static const int kSymbolCountOffset = 4; | |
50 static const int kSizeOffset = 5; | |
51 static const int kHeaderSize = 6; | |
52 | |
53 // If encoding a message, the following positions are fixed. | |
54 static const int kMessageStartPos = 0; | |
55 static const int kMessageEndPos = 1; | |
56 static const int kMessageArgCountPos = 2; | |
57 static const int kMessageTextPos = 3; | |
58 | |
59 static const byte kNumberTerminator = 0x80u; | |
60 }; | |
61 | |
62 | |
63 // ---------------------------------------------------------------------------- | 37 // ---------------------------------------------------------------------------- |
64 // ParserRecorder - Logging of preparser data. | 38 // ParserRecorder - Logging of preparser data. |
65 | 39 |
66 // Abstract interface for preparse data recorder. | 40 // Abstract interface for preparse data recorder. |
67 class ParserRecorder { | 41 class ParserRecorder { |
68 public: | 42 public: |
69 ParserRecorder() { } | 43 ParserRecorder() { } |
70 virtual ~ParserRecorder() { } | 44 virtual ~ParserRecorder() { } |
71 | 45 |
72 // Logs the scope and some details of a function literal in the source. | 46 // Logs the scope and some details of a function literal in the source. |
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240 Collector<byte> literal_chars_; | 214 Collector<byte> literal_chars_; |
241 Collector<byte> symbol_store_; | 215 Collector<byte> symbol_store_; |
242 Collector<Key> symbol_keys_; | 216 Collector<Key> symbol_keys_; |
243 HashMap symbol_table_; | 217 HashMap symbol_table_; |
244 int symbol_id_; | 218 int symbol_id_; |
245 }; | 219 }; |
246 | 220 |
247 | 221 |
248 } } // namespace v8::internal. | 222 } } // namespace v8::internal. |
249 | 223 |
250 #endif // V8_PREPARSER_DATA_H_ | 224 #endif // V8_PREPARSE_DATA_H_ |
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