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.
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"
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);
31 void CompleteParserRecorder::LogMessage(int start_pos, int end_pos,
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::kMessageTextPos == 4);
47 WriteString(CStrVector(message));
48 if (arg_opt != NULL) WriteString(CStrVector(arg_opt));
52 void CompleteParserRecorder::WriteString(Vector<const char> str) {
53 function_store_.Add(str.length());
54 for (int i = 0; i < str.length(); i++) {
55 function_store_.Add(str[i]);
60 ScriptData* CompleteParserRecorder::GetScriptData() {
61 int function_size = function_store_.size();
62 int total_size = PreparseDataConstants::kHeaderSize + function_size;
63 unsigned* data = NewArray<unsigned>(total_size);
64 preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
65 MemCopy(data, preamble_, sizeof(preamble_));
66 if (function_size > 0) {
67 function_store_.WriteTo(Vector<unsigned>(
68 data + PreparseDataConstants::kHeaderSize, function_size));
70 DCHECK(IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment));
71 ScriptData* result = new ScriptData(reinterpret_cast<byte*>(data),
72 total_size * sizeof(unsigned));
73 result->AcquireDataOwnership();
78 } } // namespace v8::internal.