- Always write a Null Object for Code objects

vm/snapshot.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/snapshot.h"
 
 #include "platform/assert.h"
 #include "vm/bootstrap.h"
 #include "vm/exceptions.h"
 #include "vm/heap.h"
@@ skipping 476 matching lines @@
     WriteIndexedObject(ObjectStore::kTrueValue);
     return;
   }
 
   // Check if it is a singleton boolean false value.
   if (rawobj == object_store()->false_value()) {
     WriteIndexedObject(ObjectStore::kFalseValue);
     return;
   }
 
+  // Check if it is a code object in that case just write a Null object
+  // as we do not want code objects in the snapshot.
+  if (rawobj->ptr()->class_ == Object::code_class()) {
+    WriteIndexedObject(Object::kNullObject);
+    return;
+  }
+
   // Check if classes are not being serialized and it is preinitialized type.
   if (kind_ != Snapshot::kFull) {
     RawType* raw_type = reinterpret_cast<RawType*>(rawobj);
     index = object_store()->GetTypeIndex(raw_type);
     if (index != ObjectStore::kInvalidIndex) {
       WriteIndexedObject(index);
       return;
     }
   }
 
@@ skipping 138 matching lines @@
 
 
 void SnapshotWriterVisitor::VisitPointers(RawObject** first, RawObject** last) {
   for (RawObject** current = first; current <= last; current++) {
     RawObject* raw_obj = *current;
     writer_->WriteObject(raw_obj);
   }
 }
 
 }  // namespace dart