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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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