[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/zone.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 159 matching lines @@
 // elements. The list itself and all its elements are allocated in the
 // Zone. ZoneLists cannot be deleted individually; you can delete all
 // objects in the Zone by calling Zone::DeleteAll().
 template<typename T>
 class ZoneList: public List<T, ZoneListAllocationPolicy> {
  public:
   // Construct a new ZoneList with the given capacity; the length is
   // always zero. The capacity must be non-negative.
   explicit ZoneList(int capacity)
       : List<T, ZoneListAllocationPolicy>(capacity) { }
+
+  // Construct a new ZoneList by copying the elements of the given ZoneList.
+  explicit ZoneList(const ZoneList<T>& other)
+      : List<T, ZoneListAllocationPolicy>(other.length()) {
+    AddAll(other);
+  }
 };
 
 
-// A zone splay tree.  The config type parameter encapsulates the
-// different configurations of a concrete splay tree (see splay-tree.h).
-// The tree itself and all its elements are allocated in the Zone.
-template <typename Config>
-class ZoneSplayTree: public SplayTree<Config, ZoneListAllocationPolicy> {
- public:
-  ZoneSplayTree()
-      : SplayTree<Config, ZoneListAllocationPolicy>() {}
-  ~ZoneSplayTree();
-};
+// Introduce a convenience type for zone lists of map handles.
+typedef ZoneList<Handle<Map> > ZoneMapList;
 
 
 // ZoneScopes keep track of the current parsing and compilation
 // nesting and cleans up generated ASTs in the Zone when exiting the
 // outer-most scope.
 class ZoneScope BASE_EMBEDDED {
  public:
+  // TODO(isolates): pass isolate pointer here.
   inline explicit ZoneScope(ZoneScopeMode mode);
 
   virtual ~ZoneScope();
 
   inline bool ShouldDeleteOnExit();
 
   // For ZoneScopes that do not delete on exit by default, call this
   // method to request deletion on exit.
   void DeleteOnExit() {
     mode_ = DELETE_ON_EXIT;
   }
 
   inline static int nesting();
 
  private:
   Isolate* isolate_;
   ZoneScopeMode mode_;
 };
 
 
+// A zone splay tree.  The config type parameter encapsulates the
+// different configurations of a concrete splay tree (see splay-tree.h).
+// The tree itself and all its elements are allocated in the Zone.
+template <typename Config>
+class ZoneSplayTree: public SplayTree<Config, ZoneListAllocationPolicy> {
+ public:
+  ZoneSplayTree()
+      : SplayTree<Config, ZoneListAllocationPolicy>() {}
+  ~ZoneSplayTree();
+};
+
+
 } }  // namespace v8::internal
 
 #endif  // V8_ZONE_H_