[Isolates] Merge from bleeding_edge, revisions 5934-6100.

src/spaces.h

-// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Copyright 2006-2010 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
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_SPACES_H_
 #define V8_SPACES_H_
 
-#include "atomicops.h"
 #include "list-inl.h"
 #include "log.h"
 
 namespace v8 {
 namespace internal {
 
 class Isolate;
 
 // -----------------------------------------------------------------------------
 // Heap structures:
@@ skipping 1574 matching lines @@
   // respective semispace (not necessarily below the allocation pointer of the
   // semispace).
   bool ToSpaceContains(Object* o) { return to_space_.Contains(o); }
   bool FromSpaceContains(Object* o) { return from_space_.Contains(o); }
 
   bool ToSpaceContains(Address a) { return to_space_.Contains(a); }
   bool FromSpaceContains(Address a) { return from_space_.Contains(a); }
 
   virtual bool ReserveSpace(int bytes);
 
+  // Resizes a sequential string which must be the most recent thing that was
+  // allocated in new space.
+  template <typename StringType>
+  inline void ShrinkStringAtAllocationBoundary(String* string, int len);
+
 #ifdef ENABLE_HEAP_PROTECTION
   // Protect/unprotect the space by marking it read-only/writable.
   virtual void Protect();
   virtual void Unprotect();
 #endif
 
 #ifdef DEBUG
   // Verify the active semispace.
   virtual void Verify();
   // Print the active semispace.
@@ skipping 707 matching lines @@
   }
   // Must be small, since an iteration is used for lookup.
   static const int kMaxComments = 64;
 };
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SPACES_H_