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// 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/parsing/preparse-data.h"
#include "src/base/hashmap.h"
#include "src/base/logging.h"
#include "src/globals.h"
#include "src/objects-inl.h"
#include "src/parsing/parser.h"
#include "src/parsing/preparse-data-format.h"
namespace v8 {
namespace internal {
void ParserLogger::LogFunction(int start, int end, int num_parameters,
int function_length, LanguageMode language_mode,
bool uses_super_property, bool calls_eval,
int num_inner_functions) {
function_store_.Add(start);
function_store_.Add(end);
function_store_.Add(num_parameters);
function_store_.Add(function_length);
function_store_.Add(FunctionEntry::EncodeFlags(
language_mode, uses_super_property, calls_eval));
function_store_.Add(num_inner_functions);
}
ParserLogger::ParserLogger() {
preamble_[PreparseDataConstants::kMagicOffset] =
PreparseDataConstants::kMagicNumber;
preamble_[PreparseDataConstants::kVersionOffset] =
PreparseDataConstants::kCurrentVersion;
preamble_[PreparseDataConstants::kFunctionsSizeOffset] = 0;
preamble_[PreparseDataConstants::kSizeOffset] = 0;
DCHECK_EQ(4, PreparseDataConstants::kHeaderSize);
#ifdef DEBUG
prev_start_ = -1;
#endif
}
ScriptData* ParserLogger::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;
}
PreParseData::FunctionData PreParseData::GetFunctionData(int start) const {
auto it = functions_.find(start);
if (it != functions_.end()) {
return it->second;
}
return FunctionData();
}
void PreParseData::AddFunctionData(int start, FunctionData&& data) {
DCHECK(data.is_valid());
functions_[start] = std::move(data);
}
void PreParseData::AddFunctionData(int start, const FunctionData& data) {
DCHECK(data.is_valid());
functions_[start] = data;
}
size_t PreParseData::size() const { return functions_.size(); }
PreParseData::const_iterator PreParseData::begin() const {
return functions_.begin();
}
PreParseData::const_iterator PreParseData::end() const {
return functions_.end();
}
} // namespace internal
} // namespace v8.
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