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// Copyright 2014 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.
#ifndef V8_BACKGROUND_PARSING_TASK_H_
#define V8_BACKGROUND_PARSING_TASK_H_
#include <memory>
#include "src/base/platform/platform.h"
#include "src/base/platform/semaphore.h"
#include "src/compiler.h"
#include "src/parsing/parse-info.h"
#include "src/parsing/parser.h"
namespace v8 {
namespace internal {
class ScriptData;
// Internal representation of v8::ScriptCompiler::StreamedSource. Contains all
// data which needs to be transmitted between threads for background parsing,
// finalizing it on the main thread, and compiling on the main thread.
struct StreamedSource {
StreamedSource(ScriptCompiler::ExternalSourceStream* source_stream,
ScriptCompiler::StreamedSource::Encoding encoding)
: source_stream(source_stream), encoding(encoding) {}
// Internal implementation of v8::ScriptCompiler::StreamedSource.
std::unique_ptr<ScriptCompiler::ExternalSourceStream> source_stream;
ScriptCompiler::StreamedSource::Encoding encoding;
std::unique_ptr<ScriptCompiler::CachedData> cached_data;
// Data needed for parsing, and data needed to to be passed between thread
// between parsing and compilation. These need to be initialized before the
// compilation starts.
UnicodeCache unicode_cache;
std::unique_ptr<Zone> zone;
std::unique_ptr<ParseInfo> info;
std::unique_ptr<Parser> parser;
private:
// Prevent copying. Not implemented.
StreamedSource(const StreamedSource&);
StreamedSource& operator=(const StreamedSource&);
};
class BackgroundParsingTask : public ScriptCompiler::ScriptStreamingTask {
public:
BackgroundParsingTask(StreamedSource* source,
ScriptCompiler::CompileOptions options, int stack_size,
Isolate* isolate);
virtual void Run();
private:
StreamedSource* source_; // Not owned.
int stack_size_;
ScriptData* script_data_;
};
} // namespace internal
} // namespace v8
#endif // V8_BACKGROUND_PARSING_TASK_H_
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