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<p>Hi Tobias,</p>
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<p>are you sure about that?</p>
<p><span style="font-size:12pt">[Compiler evaluate: '</span><span style="font-size:12pt"><b>self</b></span><span style="font-size:12pt"> identityHash' for: ProtoObject new]
</span><span style="font-size:12pt">answers a me a SmallInteger. Compiler >> #evaluate:[...] returns the last stack value automatically, just a like a printIt. See senders of #</span><span style="font-size:12pt">returnSelfIfNoOther: in Parser. :-)</span><br>
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<p><span>Best,</span></p>
<p><span>Christoph</span></p>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>Von:</b> Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Tobias Pape <Das.Linux@gmx.de><br>
<b>Gesendet:</b> Samstag, 5. September 2020 13:25:26<br>
<b>An:</b> The general-purpose Squeak developers list<br>
<b>Betreff:</b> Re: [squeak-dev] Two new questions about VM machinery :-)</font>
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> On 05.09.2020, at 13:10, Thiede, Christoph <Christoph.Thiede@student.hpi.uni-potsdam.de> wrote:<br>
> <br>
> What would you expect the following to return?<br>
> x := Compiler evaluate: 'super identityHash' for: ProtoObject new.<br>
> thisContext objectClass: x.<br>
> I would have guessed that either the VM crashes or ProtoObject >> #cannotInterpret: is called.<br>
> But actually, it answers you the ProtoObject instance, which I find very interesting because it means that if a message cannot be looked up, it is simply and silently skipped.<br>
<br>
No. you're just missing the return, that's why it answers self…<br>
-t<br>
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