Refactor ScriptData class for cached compile data.

src/preparse-data.cc

 // 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 "include/v8stdint.h"
 #include "src/base/logging.h"
 #include "src/globals.h"
 #include "src/hashmap.h"
 #include "src/preparse-data.h"
 #include "src/preparse-data-format.h"
@@ skipping 41 matching lines @@
 
 
 void CompleteParserRecorder::WriteString(Vector<const char> str) {
   function_store_.Add(str.length());
   for (int i = 0; i < str.length(); i++) {
     function_store_.Add(str[i]);
   }
 }
 
 
-Vector<unsigned> CompleteParserRecorder::ExtractData() {
+ScriptData* CompleteParserRecorder::GetScriptData() {
   int function_size = function_store_.size();
   int total_size = PreparseDataConstants::kHeaderSize + function_size;
-  Vector<unsigned> data = Vector<unsigned>::New(total_size);
+  unsigned* data = NewArray<unsigned>(total_size);
   preamble_[PreparseDataConstants::kFunctionsSizeOffset] = function_size;
-  MemCopy(data.start(), preamble_, sizeof(preamble_));
+  MemCopy(data, preamble_, sizeof(preamble_));
   if (function_size > 0) {
-    function_store_.WriteTo(data.SubVector(PreparseDataConstants::kHeaderSize,
-                                           total_size));
+    function_store_.WriteTo(Vector<unsigned>(
+        data + PreparseDataConstants::kHeaderSize, function_size));
   }
-  return data;
+  ASSERT(IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment));
+  ScriptData* result = new ScriptData(reinterpret_cast<byte*>(data),
+                                      total_size * sizeof(unsigned));
+  result->AcquireDataOwnership();
+  return result;
 }
 
 
 } }  // namespace v8::internal.