- Remember the fact that an object has been added to the

runtime/vm/raw_object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/raw_object.h"
 
 #include "vm/class_table.h"
 #include "vm/freelist.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 162 matching lines @@
         break;
       }
       case kJSRegExpCid: {
         const RawJSRegExp* raw_jsregexp =
             reinterpret_cast<const RawJSRegExp*>(this);
         intptr_t data_length = Smi::Value(raw_jsregexp->ptr()->data_length_);
         instance_size = JSRegExp::InstanceSize(data_length);
         break;
       }
       case kFreeListElement: {
-        ASSERT(FreeBit::decode(ptr()->tags_));
+        // ASSERT(FreeBit::decode(ptr()->tags_));
         uword addr = RawObject::ToAddr(const_cast<RawObject*>(this));
         FreeListElement* element = reinterpret_cast<FreeListElement*>(addr);
         instance_size = element->Size();
         break;
       }
       default:
         UNREACHABLE();
         break;
     }
   }
@@ skipping 46 matching lines @@
 #define RAW_VISITPOINTERS(clazz)                                               \
       case kTypedData##clazz##ViewCid:
       CLASS_LIST_TYPED_DATA(RAW_VISITPOINTERS)
       case kByteDataViewCid: {
         RawInstance* raw_obj = reinterpret_cast<RawInstance*>(this);
         size = RawInstance::VisitInstancePointers(raw_obj, visitor);
         break;
       }
 #undef RAW_VISITPOINTERS
       case kFreeListElement: {
-        ASSERT(FreeBit::decode(ptr()->tags_));
+        // ASSERT(FreeBit::decode(ptr()->tags_));
         uword addr = RawObject::ToAddr(const_cast<RawObject*>(this));
         FreeListElement* element = reinterpret_cast<FreeListElement*>(addr);
         size = element->Size();
         break;
       }
       default:
         OS::Print("Class Id: %"Pd"\n", class_id);
         UNREACHABLE();
         break;
     }
@@ skipping 542 matching lines @@
 
 intptr_t RawWeakProperty::VisitWeakPropertyPointers(
     RawWeakProperty* raw_obj, ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return WeakProperty::InstanceSize();
 }
 
 }  // namespace dart