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<p>Sounds very interesting :)</p>
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<p>In the past I have been writing the following instead:</p>
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<p>true caseOf: {</p>
<p> [aNumber isEven] -> [<span>'That is an even number.'].</span></p>
<p><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;"> [aNumber isOdd] -> [</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;">'That
is an odd number.']. </span></span></p>
<p><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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<p><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;"><br>
</span></span></p>
<p><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;">but your code is much more beautiful :)</span></span></p>
<p><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;">I think both variants have a contrary semantic, but on the
other hand it just reads intuitive:</span></span></p>
<p><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;"><br>
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<p><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;"></p>
<div>aNumber caseOf: {</div>
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[42] -> ['That is correct.'].</div>
[:n | n even] -> ['That is an even number.'].</div>
<div> [:n | n odd] -> ['That is an odd number.'].</div>
<div>}.</div>
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<p><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;"><br>
</span></span></p>
<p><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;"></p>
<div>This would also require some changes to the Parser. If your examples compiles, I would also expect the following to run:</div>
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<div>aNumber caseOf: {<br>
#even -> ['That is an even number.'].<br>
#odd -> ['That is an odd number.'].<br>
}.<br>
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<div>Best,</div>
<div>Christoph</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Von:</b> Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Taeumel, Marcel<br>
<b>Gesendet:</b> Donnerstag, 15. August 2019 10:32:07<br>
<b>An:</b> gettimothy via Squeak-dev<br>
<b>Betreff:</b> [squeak-dev] Question about #caseOf:otherwise:</font>
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Hi all!
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<div>Why isn't the following example possible?</div>
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<div>aNumber caseOf: {</div>
<div> <b>[:n | n even]</b> -> ['That is an even number.'].</div>
<div> <b> [:n | n odd]</b> -> ['That is an odd number.'].</div>
<div>}.</div>
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<div>That is, why is the check "assoc key value = self" not configurable as "(x := assoc key cull: self) == true or: [x = self]"? :-)</div>
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<div>... maybe it is a good thing that case-of statements in Smalltalk are not that powerful?</div>
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<div>Best,</div>
<div>Marcel</div>
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