Fix for issue 20992 - Allow sending static/top-level functions to other isolates which are spawned …

runtime/vm/snapshot.h

 // 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.
 
 #ifndef VM_SNAPSHOT_H_
 #define VM_SNAPSHOT_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/bitfield.h"
@@ skipping 329 matching lines @@
     Object* reference_;
     DeserializeState state_;
   };
 
   PageSpace* old_space() const { return old_space_; }
 
   // Allocate uninitialized objects, this is used when reading a full snapshot.
   RawObject* AllocateUninitialized(intptr_t class_id, intptr_t size);
 
   RawClass* ReadClassId(intptr_t object_id);
+  RawObject* ReadStaticImplicitClosure(intptr_t object_id, intptr_t cls_header);
   RawObject* ReadObjectImpl();
   RawObject* ReadObjectImpl(intptr_t header);
   RawObject* ReadObjectRef();
 
   // Read a VM isolate object that was serialized as an Id.
   RawObject* ReadVMIsolateObject(intptr_t object_id);
 
   // Read an object that was serialized as an Id (singleton in object store,
   // or an object that was already serialized before).
   RawObject* ReadIndexedObject(intptr_t object_id);
@@ skipping 244 matching lines @@
       forward_list_.UnmarkAll();
       unmarked_objects_ = true;
     }
   }
 
   bool CheckAndWritePredefinedObject(RawObject* raw);
   void HandleVMIsolateObject(RawObject* raw);
 
   void WriteObjectRef(RawObject* raw);
   void WriteClassId(RawClass* cls);
+  void WriteStaticImplicitClosure(intptr_t object_id,
+                                  RawFunction* func,
+                                  intptr_t tags);
   void WriteObjectImpl(RawObject* raw);
   void WriteInlinedObject(RawObject* raw);
   void WriteForwardedObjects();
   void ArrayWriteTo(intptr_t object_id,
                     intptr_t array_kind,
                     intptr_t tags,
                     RawSmi* length,
                     RawTypeArguments* type_arguments,
                     RawObject* data[]);
-  void CheckIfSerializable(RawClass* cls);
+  RawFunction* IsSerializableClosure(RawClass* cls, RawObject* obj);
+  RawClass* GetFunctionOwner(RawFunction* func);
+  void CheckForNativeFields(RawClass* cls);
   void SetWriteException(Exceptions::ExceptionType type, const char* msg);
   void WriteInstance(intptr_t object_id,
                      RawObject* raw,
                      RawClass* cls,
                      intptr_t tags);
   void WriteInstanceRef(RawObject* raw, RawClass* cls);
   bool AllowObjectsInDartLibrary(RawLibrary* library);
 
   Isolate* isolate() const { return isolate_; }
   ObjectStore* object_store() const { return object_store_; }
@@ skipping 107 matching lines @@
  private:
   SnapshotWriter* writer_;
   bool as_references_;
 
   DISALLOW_COPY_AND_ASSIGN(SnapshotWriterVisitor);
 };
 
 }  // namespace dart
 
 #endif  // VM_SNAPSHOT_H_