<div id="__MailbirdStyleContent" style="font-size: 10pt;font-family: Arial;color: #000000"><div>Hi Christoph.</div><div><br></div>
> ... <span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">but not </span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">Array new: 20 filledWith: 42.</span><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px"><br></span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">That's what #new:withAll: is for.</span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px"><br></span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">> ... </span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">Instead, I would need to specify extra brackets that appear kind of redundant to me: ...</span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px"><br></span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">Because it is not required. Use #new:withAll:. :-) I would rather not over-engineer a specific interface if there are others for the job. On the idiomatic side, #new:withAll: would be preferred over #new:filledWith: for constant arguments.</span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px"><br></span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">And even #new:filledWith: has not been accepted for Trunk. So this discussion about Object >> #cull: needs a better example. ;-)</span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px"><br></span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">Best,</span></div><div><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">Marcel</span></div><div class="mb_sig"></div>
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<p style="color: #AAAAAA; margin-top: 10px;">Am 10.12.2019 13:06:19 schrieb Thiede, Christoph <christoph.thiede@student.hpi.uni-potsdam.de>:</p><div style="font-family:Arial,Helvetica,sans-serif">
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<p>Hi Marcel,</p>
<p><br>
</p>
<p>I see this sentence of myself was ambiguous:</p>
<p><br>
</p>
<p>> <span style="font-size: 12pt">This could improve the polymorphy between "evaluables" such as blocks or MessageSends and other objects. Example:</span></p>
<div>I meant: improve the polymorphy between, on the one hand, blocks, MessageSends & Co., and on the other hand, objects in general.</div>
<div><br>
</div>
<div>When I design an interface, I often wonder whether I should store into an accessor either a block or rather a normal object. A block has a more sophisticated syntax, while normal objects can't vary dependent on an argument.</div>
<div><br>
</div>
<div>An example: Let's assume <span>Collections-mt.852 would be merged into Trunk (which uses #cull:).</span></div>
<div><span>Then I could say</span></div>
<div><span>
<div>Array new: 20 filledWith: [100 atRandom].</div>
<div>or even</div>
<div><span>Array new: 20 filledWith: [:i | i ** 2].</span><br>
</div>
<div><span>but not</span></div>
<div><span>
<div style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">
Array new: 20 filledWith: 42.<br>
</div>
<div>Instead, I would need to specify extra brackets that appear kind of redundant to me:</div>
<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">Array new: 20 filledWith: [42]</span><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">.</span><br>
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<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px"><br>
</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">Object >> #cull: would solve this problem.</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px"><br>
</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">It would be also analog to the implementation of Object >> #value, which
allows you to do</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">self assert: [Boolean random].</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif,EmojiFont,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols;font-size: 16px">as well as</span></div>
<span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">self assert: Boolean random.</span><br>
</span></div>
<div><span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;font-size: 16px">From this point of view, every object is already evaluable
today.</span></span></div>
</span></div>
<p></p>
<p><br>
</p>
<p>Looking forward to your thoughts - before or after 5.3 :-)</p>
<p><br>
</p>
<p>Best,</p>
<p>Christoph</p>
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<div id="divRplyFwdMsg" dir="ltr"><span style="font-family: Calibri, sans-serif;color: #000000"><b>Von:</b> Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Taeumel, Marcel<br>
<b>Gesendet:</b> Dienstag, 10. Dezember 2019 09:38:56<br>
<b>An:</b> John Pfersich via Squeak-dev<br>
<b>Betreff:</b> Re: [squeak-dev] Object >> #cull:</span>
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Hi Christoph,
<div><br>
</div>
<div>let's discuss that after the 5.3 release.</div>
<div><br>
</div>
<div>> <span style="font-family: Calibri,Helvetica,sans-serif;font-size: 16px">such as blocks or MessageSends </span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif;font-size: 16px"><br>
</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif;font-size: 16px">Well, then BlockClosure and MessageSend would be the place to add #cull:. There is no need to put it in Object because any class can choose to freely and dynamically participate in
such a protocol. :-)</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif;font-size: 16px"><br>
</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif;font-size: 16px">Best,</span></div>
<div><span style="font-family: Calibri,Helvetica,sans-serif;font-size: 16px">Marcel</span></div>
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<p style="color:#AAAAAA; margin-top:10px">Am 09.12.2019 18:51:35 schrieb Thiede, Christoph <christoph.thiede@student.hpi.uni-potsdam.de>:</p>
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<p>Hi all!</p>
<p><br>
</p>
<p>Just another, possibly crazy idea: What about implementing #cull:, #cull:cull: etc. on Object?</p>
<p><br>
</p>
<p><b>Object >> #cull: firstArg</b></p>
<p><b> ^ self value</b></p>
<p><br>
</p>
<p>This could improve the polymorphy between "evaluables" such as blocks or MessageSends and other objects. Example:</p>
<p><br>
</p>
<p><span>[2 / 0] on: ZeroDivide do: Float infinity</span><br>
</p>
<p><span><br>
</span></p>
<p><span>Some current implementations that call both #isBlock and #cull: also reveal that there might be a small break in the interface. From #haltIf:</span></p>
<p><span><img size="7123" id="img852922" tabindex="0" style="max-width: 99.9%; user-select: none;" src="cid:95ff5c48-deea-4916-916d-937c0382e78b"></img><br>
</span></p>
<p><span><br>
</span></p>
<p><span>Just wanted to share that thought :) In general, do you think blurring the differences between block and object in that way might be a good idea or rather a bad one? At least we already have implemented #value on Object.</span></p>
<p><span><br>
</span></p>
<p><span>Disclaimer: I know that in many cases, you should prefer a block for performance reasons/compiler optimization, but there is still a gap between the interfaces ...</span></p>
<p><span><br>
</span></p>
<p><span>Best,</span></p>
<p><span>Christoph</span></p>
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