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<p style='color: #AAAAAA; margin-top: 10px;'>Am 21.02.2020 17:33:03 schrieb Thiede, Christoph <christoph.thiede@student.hpi.uni-potsdam.de>:</p><div style='font-family:Arial,Helvetica,sans-serif'>
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<p>This changeset makes it possible to accept an argument in the otherwise block of a #caseOf:otherwise: call.</p>
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<p>Diff of the #caseOf:otherwise: implementation:</p>
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<div>caseOf: aBlockAssociationCollection otherwise: aBlock</div>
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<div><span style="white-space:pre"></span>"The elements of aBlockAssociationCollection are associations between blocks. Answer the evaluated value of the first association in aBlockAssociationCollection whose evaluated key equals the receiver. If no match
is found, answer the result of evaluating aBlock."</div>
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<div><span style="white-space:pre"></span>aBlockAssociationCollection associationsDo:</div>
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<div><span style="white-space:pre"></span>[:assoc | (assoc key value = self) ifTrue: [^assoc value value]].</div>
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<div><strike><span style="color: rgb(0, 111, 201);">- </span><span style="white-space: pre; color: rgb(0, 111, 201);"></span><span style="color: rgb(0, 111, 201);">^ aBlock
</span><span style="color: rgb(0, 111, 201);">value</span></strike></div>
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<div><span style="white-space:pre"><span style="color: rgb(208, 92, 18);">+ </span>
<span style="color: rgb(208, 92, 18);"></span></span><span style="color: rgb(208, 92, 18);">^ aBlock cull: self</span></div>
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<div>"| z | z := {[#a]->[1+1]. ['b' asSymbol]->[2+2]. [#c]->[3+3]}. #b caseOf: z otherwise: [0]"</div>
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<div>"| z | z := {[#a]->[1+1]. ['d' asSymbol]->[2+2]. [#c]->[3+3]}. #b caseOf: z otherwise: [0]"</div>
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<div>"The following are compiled in-line:"</div>
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<div>"#b caseOf: {[#a]->[1+1]. ['b' asSymbol]->[2+2]. [#c]->[3+3]} otherwise: [0]"</div>
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<div>"#b caseOf: {[#a]->[1+1]. ['d' asSymbol]->[2+2]. [#c]->[3+3]} otherwise: [0]"</div>
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<div><span style="color: rgb(208, 92, 18);">+ </span><span style="color: rgb(208, 92, 18);">"#b caseOf: {[#a]->[1+1]. ['d' asSymbol]->[2+2]. [#c]->[3+3]} otherwise: [:x | x halt]"</span></div>
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<p>Furthermore, the changeset includes a necessary modification of MessageNode >> #transformCase: so that the otherwise argument can be compiled in-line.</p>
<p>Last but not least, I wrote some tests for #caseOf:[otherwise:].</p>
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<p><span style="font-size: 12pt">Please review!</span><br>
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<p><span style="font-size: 12pt">(In a later change, it would be possible to allow arguments for the association key blocks as well. But I love short feedback loops, so let's assess this one first :-))</span></p>
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<p><span style="font-size: 12pt">Best,</span></p>
<p><span style="font-size: 12pt">Christoph</span></p>
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