Extract ParseInfo from CompilationInfo.

src/background-parsing-task.h

 // 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 "src/base/platform/platform.h"
 #include "src/base/platform/semaphore.h"
 #include "src/compiler.h"
 #include "src/parser.h"
 #include "src/smart-pointers.h"
 
 namespace v8 {
 namespace internal {
 
-class Parser;
-
 // 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),
         hash_seed(0),
         allow_lazy(false) {}
 
   // Internal implementation of v8::ScriptCompiler::StreamedSource.
   SmartPointer<ScriptCompiler::ExternalSourceStream> source_stream;
   ScriptCompiler::StreamedSource::Encoding encoding;
   SmartPointer<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;
-  SmartPointer<CompilationInfo> info;
+  SmartPointer<ParseInfo> info;
+  SmartPointer<Zone> zone;

[marja, 2015/03/05 10:52:55]

Why is Zone needed separately, can't we get it from ParseInfo?

   uint32_t hash_seed;
   bool allow_lazy;
   SmartPointer<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.
-  ScriptCompiler::CompileOptions options_;
   int stack_size_;
 };
 }
 }  // namespace v8::internal
 
 #endif  // V8_BACKGROUND_PARSING_TASK_H_