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<p>Hi Eliot,</p>
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<p>> <span style="font-size:12pt">ifNotNil: is inlined. It is equivalent to this, but saves the temp decl, which is why it's so nice.</span></p>
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<div>> | obj |</div>
<div>> obj := TheClass someInstance.</div>
<div>> obj == nil ifFalse: [obj chasePointers]</div>
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Why won't #chasePointers pick up the obj tempvar from the snippet above? Is this just because contexts are only married on demand?</div>
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Best,</div>
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Christoph</div>
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<div id="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 Eliot Miranda <eliot.miranda@gmail.com><br>
<b>Gesendet:</b> Donnerstag, 29. Dezember 2022 04:21 Uhr<br>
<b>An:</b> Chris Muller<br>
<b>Cc:</b> The general-purpose Squeak developers list<br>
<b>Betreff:</b> Re: [squeak-dev] Constantly growing Image file</font>
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<div class="gmail_default" style="font-size:small">Hi Chris,</div>
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<div dir="ltr" class="gmail_attr">On Tue, Dec 27, 2022 at 11:50 AM Chris Muller <<a href="mailto:ma.chris.m@gmail.com">ma.chris.m@gmail.com</a>> wrote:<br>
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<div dir="auto">If the latter is the case, it would be a Heisentool, where the attempt of using it changes that which it is supposed to observe. :-P</div>
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<div>Which is why I don't use the pointer explorer when I'm trying to clean all instance of a class out. Instead:</div>
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<div> TheClass allInstances anyOne chasePointers</div>
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<div class="gmail_quote">TheClass someInstance ifNotNil: [:obj| obj chasePointers]</div>
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<div>Ah, I will start using #someInstance, but typing ifNotNil: is a lot more work than closing a debugger when no more instances. Besides, wouldn't the Block Context's var, "obj" be another possible reference that #chasePointers might pick up on?</div>
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<div class="gmail_default" style="font-size:small">ifNotNil: is inlined. It is equivalent to this, but saves the temp decl, which is why it's so nice.</div>
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<div class="gmail_default" style="font-size:small">| obj |</div>
<div class="gmail_default" style="font-size:small">obj := TheClass someInstance.</div>
<div class="gmail_default" style="font-size:small">obj == nil ifFalse: [obj chasePointers]</div>
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<div>_,,,^..^,,,_<br>
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<div>best, Eliot</div>
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