// 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, LanguageMode language_mode, bool uses_super_property, int num_inner_functions) { function_store_.Add(start); function_store_.Add(end); function_store_.Add(num_parameters); function_store_.Add( FunctionEntry::EncodeFlags(language_mode, uses_super_property)); 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.