Preliminary Harmony weak maps API implementation.

src/objects-debug.cc

 // Copyright 2011 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 135 matching lines @@
       break;
     case JS_BUILTINS_OBJECT_TYPE:
       JSBuiltinsObject::cast(this)->JSBuiltinsObjectVerify();
       break;
     case JS_GLOBAL_PROPERTY_CELL_TYPE:
       JSGlobalPropertyCell::cast(this)->JSGlobalPropertyCellVerify();
       break;
     case JS_ARRAY_TYPE:
       JSArray::cast(this)->JSArrayVerify();
       break;
+    case JS_WEAK_MAP_TYPE:
+      JSWeakMap::cast(this)->JSWeakMapVerify();
+      break;
     case JS_REGEXP_TYPE:
       JSRegExp::cast(this)->JSRegExpVerify();
       break;
     case FILLER_TYPE:
       break;
     case JS_PROXY_TYPE:
       JSProxy::cast(this)->JSProxyVerify();
       break;
     case FOREIGN_TYPE:
       Foreign::cast(this)->ForeignVerify();
@@ skipping 280 matching lines @@
 
 void JSArray::JSArrayVerify() {
   JSObjectVerify();
   ASSERT(length()->IsNumber() || length()->IsUndefined());
   ASSERT(elements()->IsUndefined() ||
          elements()->IsFixedArray() ||
          elements()->IsFixedDoubleArray());
 }
 
 
+void JSWeakMap::JSWeakMapVerify() {
+  CHECK(IsJSWeakMap());
+  JSObjectVerify();
+  VerifyHeapPointer(table());
+  ASSERT(table()->IsHashTable());
+}
+
+
 void JSRegExp::JSRegExpVerify() {
   JSObjectVerify();
   ASSERT(data()->IsUndefined() || data()->IsFixedArray());
   switch (TypeTag()) {
     case JSRegExp::ATOM: {
       FixedArray* arr = FixedArray::cast(data());
       ASSERT(arr->get(JSRegExp::kAtomPatternIndex)->IsString());
       break;
     }
     case JSRegExp::IRREGEXP: {
@@ skipping 294 matching lines @@
         ASSERT(e->IsUndefined());
       }
     }
   }
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal