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<p>Hi Tobias,</p>
<p><br>
</p>
<p>> <span>That said, 'super' needs a lexical scope,</span></p>
<p><span><br>
</span></p>
<p><span>Not sure about that either, because [<span>Compiler evaluate: 'super yourself' for: Object new] gives me a MNU (<span>MessageNotUnderstood: ProtoObject>>yourself). A do it block is nothing else than a normal method that is parsed with noPattern (with
a default do it selector), isn't it?</span></span></span></p>
<p><span><span><span>But yes, of course:</span></span></span></p>
<p><span><span><span><br>
</span></span></span></p>
<p><span><span><span>> <span>can you do the whole thing in a proper method?</span></span></span></span></p>
<p><span><span><span><span><br>
</span></span></span></span></p>
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<p><span><span><span><span></p>
<div>ProtoObject compile: 'superCallingMethod ^ super foo'.</div>
<div>ProtoObject new superCallingMethod.</div>
<div>Context runSimulated: [ProtoObject new superCallingMethod]</div>
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Same error pattern as described below.</div>
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Best,</div>
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Christoph<br>
<br>
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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 18:59 Uhr<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 13:34, Thiede, Christoph <Christoph.Thiede@student.hpi.uni-potsdam.de> wrote:<br>
> <br>
> Hi Tobias,<br>
> <br>
> are you sure about that?<br>
> [Compiler evaluate: 'self identityHash' for: ProtoObject new] answers a me a SmallInteger. Compiler >> #evaluate:[...] returns the last stack value automatically, just a like a printIt. See senders of #returnSelfIfNoOther: in Parser. :-)<br>
<br>
Ah, I thought it be just a method, I misread that.<br>
That said, 'super' needs a lexical scope, can you do the whole thing in a proper method?<br>
-t<br>
<br>
> <br>
> Best,<br>
> Christoph<br>
> Von: Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Tobias Pape <Das.Linux@gmx.de><br>
> Gesendet: Samstag, 5. September 2020 13:25:26<br>
> An: The general-purpose Squeak developers list<br>
> Betreff: Re: [squeak-dev] Two new questions about VM machinery :-)<br>
> <br>
> <br>
> > 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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