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 "include/v8stdint.h"
6
7 #include "src/preparse-data-format.h"
8 #include "src/preparse-data.h"
9
10 #include "src/checks.h"
11 #include "src/globals.h"
12 #include "src/hashmap.h"
13
14 namespace v8 {
15 namespace internal {
16
17
CompleteParserRecorder()18 CompleteParserRecorder::CompleteParserRecorder()
19 : function_store_(0) {
20 preamble_[PreparseDataConstants::kMagicOffset] =
21 PreparseDataConstants::kMagicNumber;
22 preamble_[PreparseDataConstants::kVersionOffset] =
23 PreparseDataConstants::kCurrentVersion;
24 preamble_[PreparseDataConstants::kHasErrorOffset] = false;
25 preamble_[PreparseDataConstants::kFunctionsSizeOffset] = 0;
26 preamble_[PreparseDataConstants::kSizeOffset] = 0;
27 ASSERT_EQ(5, PreparseDataConstants::kHeaderSize);
28 #ifdef DEBUG
29 prev_start_ = -1;
30 #endif
31 }
32
33
LogMessage(int start_pos,int end_pos,const char * message,const char * arg_opt,bool is_reference_error)34 void CompleteParserRecorder::LogMessage(int start_pos,
35 int end_pos,
36 const char* message,
37 const char* arg_opt,
38 bool is_reference_error) {
39 if (has_error()) return;
40 preamble_[PreparseDataConstants::kHasErrorOffset] = true;
41 function_store_.Reset();
42 STATIC_ASSERT(PreparseDataConstants::kMessageStartPos == 0);
43 function_store_.Add(start_pos);
44 STATIC_ASSERT(PreparseDataConstants::kMessageEndPos == 1);
45 function_store_.Add(end_pos);
46 STATIC_ASSERT(PreparseDataConstants::kMessageArgCountPos == 2);
47 function_store_.Add((arg_opt == NULL) ? 0 : 1);
48 STATIC_ASSERT(PreparseDataConstants::kIsReferenceErrorPos == 3);
49 function_store_.Add(is_reference_error ? 1 : 0);
50 STATIC_ASSERT(PreparseDataConstants::kMessageTextPos == 4);
51 WriteString(CStrVector(message));
52 if (arg_opt != NULL) WriteString(CStrVector(arg_opt));
53 }
54
55
WriteString(Vector<const char> str)56 void CompleteParserRecorder::WriteString(Vector<const char> str) {
57 function_store_.Add(str.length());
58 for (int i = 0; i < str.length(); i++) {
59 function_store_.Add(str[i]);
60 }
61 }
62
63
ExtractData()64 Vector<unsigned> CompleteParserRecorder::ExtractData() {
65 int function_size = function_store_.size();
66 int total_size = PreparseDataConstants::kHeaderSize + function_size;
67 Vector<unsigned> data = Vector<unsigned>::New(total_size);
68 preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
69 MemCopy(data.start(), preamble_, sizeof(preamble_));
70 if (function_size > 0) {
71 function_store_.WriteTo(data.SubVector(PreparseDataConstants::kHeaderSize,
72 total_size));
73 }
74 return data;
75 }
76
77
78 } } // namespace v8::internal.
79