svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
lrn@chromium.org | 0040ca9 | 2011-05-09 10:42:56 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 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. |
| 27 | |
| 28 | #ifndef V8_PREPARSE_DATA_FORMAT_H_ |
| 29 | #define V8_PREPARSE_DATA_FORMAT_H_ |
| 30 | |
| 31 | namespace v8 { |
| 32 | namespace internal { |
| 33 | |
| 34 | // Generic and general data used by preparse data recorders and readers. |
| 35 | |
| 36 | struct PreparseDataConstants { |
| 37 | public: |
| 38 | // Layout and constants of the preparse data exchange format. |
| 39 | static const unsigned kMagicNumber = 0xBadDead; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 40 | static const unsigned kCurrentVersion = 7; |
lrn@chromium.org | 0040ca9 | 2011-05-09 10:42:56 +0000 | [diff] [blame] | 41 | |
| 42 | static const int kMagicOffset = 0; |
| 43 | static const int kVersionOffset = 1; |
| 44 | static const int kHasErrorOffset = 2; |
| 45 | static const int kFunctionsSizeOffset = 3; |
| 46 | static const int kSymbolCountOffset = 4; |
| 47 | static const int kSizeOffset = 5; |
| 48 | static const int kHeaderSize = 6; |
| 49 | |
| 50 | // If encoding a message, the following positions are fixed. |
| 51 | static const int kMessageStartPos = 0; |
| 52 | static const int kMessageEndPos = 1; |
| 53 | static const int kMessageArgCountPos = 2; |
| 54 | static const int kMessageTextPos = 3; |
| 55 | |
| 56 | static const unsigned char kNumberTerminator = 0x80u; |
| 57 | }; |
| 58 | |
| 59 | |
| 60 | } } // namespace v8::internal. |
| 61 | |
| 62 | #endif // V8_PREPARSE_DATA_FORMAT_H_ |