protected override void EmitCleanupManaged(ILCodeStream codeStream) { LoadManagedAddr(codeStream); codeStream.Emit(ILOpcode.ldfld, _ilCodeStreams.Emitter.NewToken(InteropTypes.GetHandleRef(Context).GetKnownField("_wrapper"))); codeStream.Emit(ILOpcode.call, _ilCodeStreams.Emitter.NewToken(InteropTypes.GetGC(Context).GetKnownMethod("KeepAlive", null))); }