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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "src/base/logging.h" | |
| 6 #include "src/globals.h" | |
| 7 #include "src/hashmap.h" | |
| 8 #include "src/parser.h" | |
| 9 #include "src/preparse-data.h" | |
| 10 #include "src/preparse-data-format.h" | |
| 11 | |
| 12 namespace v8 { | |
| 13 namespace internal { | |
| 14 | |
| 15 | |
| 16 CompleteParserRecorder::CompleteParserRecorder() { | |
| 17 preamble_[PreparseDataConstants::kMagicOffset] = | |
| 18 PreparseDataConstants::kMagicNumber; | |
| 19 preamble_[PreparseDataConstants::kVersionOffset] = | |
| 20 PreparseDataConstants::kCurrentVersion; | |
| 21 preamble_[PreparseDataConstants::kHasErrorOffset] = false; | |
| 22 preamble_[PreparseDataConstants::kFunctionsSizeOffset] = 0; | |
| 23 preamble_[PreparseDataConstants::kSizeOffset] = 0; | |
| 24 DCHECK_EQ(5, PreparseDataConstants::kHeaderSize); | |
| 25 #ifdef DEBUG | |
| 26 prev_start_ = -1; | |
| 27 #endif | |
| 28 } | |
| 29 | |
| 30 | |
| 31 void CompleteParserRecorder::LogMessage(int start_pos, int end_pos, | |
| 32 MessageTemplate::Template message, | |
| 33 const char* arg_opt, | |
| 34 ParseErrorType error_type) { | |
| 35 if (HasError()) return; | |
| 36 preamble_[PreparseDataConstants::kHasErrorOffset] = true; | |
| 37 function_store_.Reset(); | |
| 38 STATIC_ASSERT(PreparseDataConstants::kMessageStartPos == 0); | |
| 39 function_store_.Add(start_pos); | |
| 40 STATIC_ASSERT(PreparseDataConstants::kMessageEndPos == 1); | |
| 41 function_store_.Add(end_pos); | |
| 42 STATIC_ASSERT(PreparseDataConstants::kMessageArgCountPos == 2); | |
| 43 function_store_.Add((arg_opt == NULL) ? 0 : 1); | |
| 44 STATIC_ASSERT(PreparseDataConstants::kParseErrorTypePos == 3); | |
| 45 function_store_.Add(error_type); | |
| 46 STATIC_ASSERT(PreparseDataConstants::kMessageTemplatePos == 4); | |
| 47 function_store_.Add(static_cast<unsigned>(message)); | |
| 48 STATIC_ASSERT(PreparseDataConstants::kMessageArgPos == 5); | |
| 49 if (arg_opt != NULL) WriteString(CStrVector(arg_opt)); | |
| 50 } | |
| 51 | |
| 52 | |
| 53 void CompleteParserRecorder::WriteString(Vector<const char> str) { | |
| 54 function_store_.Add(str.length()); | |
| 55 for (int i = 0; i < str.length(); i++) { | |
| 56 function_store_.Add(str[i]); | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 | |
| 61 ScriptData* CompleteParserRecorder::GetScriptData() { | |
| 62 int function_size = function_store_.size(); | |
| 63 int total_size = PreparseDataConstants::kHeaderSize + function_size; | |
| 64 unsigned* data = NewArray<unsigned>(total_size); | |
| 65 preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size; | |
| 66 MemCopy(data, preamble_, sizeof(preamble_)); | |
| 67 if (function_size > 0) { | |
| 68 function_store_.WriteTo(Vector<unsigned>( | |
| 69 data + PreparseDataConstants::kHeaderSize, function_size)); | |
| 70 } | |
| 71 DCHECK(IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment)); | |
| 72 ScriptData* result = new ScriptData(reinterpret_cast<byte*>(data), | |
| 73 total_size * sizeof(unsigned)); | |
| 74 result->AcquireDataOwnership(); | |
| 75 return result; | |
| 76 } | |
| 77 | |
| 78 | |
| 79 } // namespace internal | |
| 80 } // namespace v8. | |
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