blob: d02cd63d669e1bd1ddf985d1ff51db5d2a625a16 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
// Copyright 2010 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/base/logging.h"
#include "src/globals.h"
#include "src/hashmap.h"
#include "src/parsing/parser.h"
#include "src/parsing/preparse-data.h"
#include "src/parsing/preparse-data-format.h"
namespace v8 {
namespace internal {
CompleteParserRecorder::CompleteParserRecorder() {
preamble_[PreparseDataConstants::kMagicOffset] =
PreparseDataConstants::kMagicNumber;
preamble_[PreparseDataConstants::kVersionOffset] =
PreparseDataConstants::kCurrentVersion;
preamble_[PreparseDataConstants::kHasErrorOffset] = false;
preamble_[PreparseDataConstants::kFunctionsSizeOffset] = 0;
preamble_[PreparseDataConstants::kSizeOffset] = 0;
DCHECK_EQ(5, PreparseDataConstants::kHeaderSize);
#ifdef DEBUG
prev_start_ = -1;
#endif
}
void CompleteParserRecorder::LogMessage(int start_pos, int end_pos,
MessageTemplate::Template message,
const char* arg_opt,
ParseErrorType error_type) {
if (HasError()) return;
preamble_[PreparseDataConstants::kHasErrorOffset] = true;
function_store_.Reset();
STATIC_ASSERT(PreparseDataConstants::kMessageStartPos == 0);
function_store_.Add(start_pos);
STATIC_ASSERT(PreparseDataConstants::kMessageEndPos == 1);
function_store_.Add(end_pos);
STATIC_ASSERT(PreparseDataConstants::kMessageArgCountPos == 2);
function_store_.Add((arg_opt == NULL) ? 0 : 1);
STATIC_ASSERT(PreparseDataConstants::kParseErrorTypePos == 3);
function_store_.Add(error_type);
STATIC_ASSERT(PreparseDataConstants::kMessageTemplatePos == 4);
function_store_.Add(static_cast<unsigned>(message));
STATIC_ASSERT(PreparseDataConstants::kMessageArgPos == 5);
if (arg_opt != NULL) WriteString(CStrVector(arg_opt));
}
void CompleteParserRecorder::WriteString(Vector<const char> str) {
function_store_.Add(str.length());
for (int i = 0; i < str.length(); i++) {
function_store_.Add(str[i]);
}
}
ScriptData* CompleteParserRecorder::GetScriptData() {
int function_size = function_store_.size();
int total_size = PreparseDataConstants::kHeaderSize + function_size;
unsigned* data = NewArray<unsigned>(total_size);
preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
MemCopy(data, preamble_, sizeof(preamble_));
if (function_size > 0) {
function_store_.WriteTo(Vector<unsigned>(
data + PreparseDataConstants::kHeaderSize, function_size));
}
DCHECK(IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment));
ScriptData* result = new ScriptData(reinterpret_cast<byte*>(data),
total_size * sizeof(unsigned));
result->AcquireDataOwnership();
return result;
}
} // namespace internal
} // namespace v8.
|
