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80 lines
2.9 KiB
80 lines
2.9 KiB
// Copyright 2010 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/base/logging.h"
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#include "src/globals.h"
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#include "src/hashmap.h"
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#include "src/parser.h"
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#include "src/preparse-data.h"
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#include "src/preparse-data-format.h"
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namespace v8 {
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namespace internal {
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CompleteParserRecorder::CompleteParserRecorder() {
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preamble_[PreparseDataConstants::kMagicOffset] =
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PreparseDataConstants::kMagicNumber;
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preamble_[PreparseDataConstants::kVersionOffset] =
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PreparseDataConstants::kCurrentVersion;
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preamble_[PreparseDataConstants::kHasErrorOffset] = false;
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preamble_[PreparseDataConstants::kFunctionsSizeOffset] = 0;
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preamble_[PreparseDataConstants::kSizeOffset] = 0;
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DCHECK_EQ(5, PreparseDataConstants::kHeaderSize);
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#ifdef DEBUG
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prev_start_ = -1;
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#endif
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}
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void CompleteParserRecorder::LogMessage(int start_pos, int end_pos,
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MessageTemplate::Template message,
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const char* arg_opt,
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ParseErrorType error_type) {
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if (HasError()) return;
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preamble_[PreparseDataConstants::kHasErrorOffset] = true;
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function_store_.Reset();
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STATIC_ASSERT(PreparseDataConstants::kMessageStartPos == 0);
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function_store_.Add(start_pos);
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STATIC_ASSERT(PreparseDataConstants::kMessageEndPos == 1);
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function_store_.Add(end_pos);
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STATIC_ASSERT(PreparseDataConstants::kMessageArgCountPos == 2);
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function_store_.Add((arg_opt == NULL) ? 0 : 1);
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STATIC_ASSERT(PreparseDataConstants::kParseErrorTypePos == 3);
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function_store_.Add(error_type);
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STATIC_ASSERT(PreparseDataConstants::kMessageTemplatePos == 4);
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function_store_.Add(static_cast<unsigned>(message));
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STATIC_ASSERT(PreparseDataConstants::kMessageArgPos == 5);
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if (arg_opt != NULL) WriteString(CStrVector(arg_opt));
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}
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void CompleteParserRecorder::WriteString(Vector<const char> str) {
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function_store_.Add(str.length());
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for (int i = 0; i < str.length(); i++) {
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function_store_.Add(str[i]);
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}
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}
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ScriptData* CompleteParserRecorder::GetScriptData() {
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int function_size = function_store_.size();
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int total_size = PreparseDataConstants::kHeaderSize + function_size;
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unsigned* data = NewArray<unsigned>(total_size);
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preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
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MemCopy(data, preamble_, sizeof(preamble_));
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if (function_size > 0) {
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function_store_.WriteTo(Vector<unsigned>(
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data + PreparseDataConstants::kHeaderSize, function_size));
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}
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DCHECK(IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment));
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ScriptData* result = new ScriptData(reinterpret_cast<byte*>(data),
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total_size * sizeof(unsigned));
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result->AcquireDataOwnership();
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return result;
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}
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} // namespace internal
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} // namespace v8.
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