Hi Christoph,

> On Sep 1, 2020, at 3:14 AM, Thiede, Christoph <Christoph.Thiede at student.hpi.uni-potsdam.de> wrote:
> 
> 
> Hi all,
> 
> 
> 
> I was just trying to file out a complex Object graph via #saveOnFile and found two problems with the SmartRefStream:
> 
> 
> 
> First, uniclass instances cannot be written to the stream. In SmartRefStream >> #instVarInfo:, I get an #errorKeyNotFound because the uniclass name is looked up into the SmalltalkImage globals. Minimum example to reproduce:
> 
> 
> 
> Object newSubclass new saveOnFile.
> 
> 
> 
> Second, blocks met during the file out process cannot be filed in again. Just try [] saveOnFile to reproduce this. Filein raises newMethodViaNewError. Maybe CompiledBlock should overwrite some streaming method for creating an appropriate disk representation?
> 
My guess is that class side code in CompiledMethod should be moved up to CompiledCode, the common superclass of CompiledMethod and CompiledBlock.

> Just wanted to report these issues. Maybe someone is more experienced with the SmartRefStream architecture and would like to fix these bugs. :-)
> 
> Best,
> Christoph
> 
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