<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">That snippet might be useful but it’s not used much in the code base. sorted: is only used 71 times, and asSortFunction is only used 9 times. And the combination is even rarer. So if you’re like most programmers, you wouldn’t have seen either selector.<br><br><div dir="ltr"><span style="font-size: 13pt;">/————————————————————/</span><div><span style="font-size: 13pt;">For encrypted mail use jgpfersich@protonmail.com</span><div>Get a free account at ProtonMail.com</div><div>Web: https://objectnets.net and https://objectnets.org</div></div><div>https://datascilv.com https://datascilv.org</div><div><br></div></div><div dir="ltr"><br><blockquote type="cite">On Feb 19, 2020, at 01:08, Thiede, Christoph <Christoph.Thiede@student.hpi.uni-potsdam.de> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p>Hi Marcel,</p>
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<p>I did *not* mean:</p>
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<div class="_rp_T4" id="Item.MessagePartBody"><span>^aColl asArray sorted: ...</span><br>
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<div class="_rp_T4" id="Item.MessagePartBody"><span>I *did* mean:</span></div>
<div class="_rp_T4" id="Item.MessagePartBody"><span>^aColl sorted: ...</span></div>
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<div class="_rp_T4" id="Item.MessagePartBody"><span>Very minor, but what else do we have #sorted: for? Law of Demeter and so on ... :-)</span></div>
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<div class="_rp_T4" id="Item.MessagePartBody"><span>Best,</span></div>
<div class="_rp_T4" id="Item.MessagePartBody"><span>Christoph</span></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> Mittwoch, 19. Februar 2020 09:52:34<br>
<b>An:</b> John Pfersich via Squeak-dev; packages@lists.squeakfoundation.org<br>
<b>Betreff:</b> Re: [squeak-dev] The Trunk: Kernel-eem.1296.mcz</font>
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Since #asArray did already a copy, there is no need to call #sorted: here.
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<div>Best,</div>
<div>Marcel</div>
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<p style="color: #AAAAAA; margin-top: 10px;">Am 19.02.2020 09:44:40 schrieb Thiede, Christoph <christoph.thiede@student.hpi.uni-potsdam.de>:</p>
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<p>> <span style="font-size: 12pt">+ ^aColl asArray sort: [:a :b | a asLowercase < b asLowercase]</span></p>
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<div class="x__rp_T4" id="x_Item.MessagePartBody">Hm, shouldn't you prefer #sorted: here? :-)
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<div class="x__rp_T4" id="x_Item.MessagePartBody"><span style="font-size: 12pt">aColl
</span><span style="font-size: 12pt">sorted: #asLowercase asSortFunction</span></div>
<div class="x__rp_T4" id="x_Item.MessagePartBody"><span style="font-size: 12pt">Or maybe use a SortedCollection from the beginning ...</span></div>
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<div id="x_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 commits@source.squeak.org <commits@source.squeak.org><br>
<b>Gesendet:</b> Mittwoch, 19. Februar 2020 04:43:19<br>
<b>An:</b> squeak-dev@lists.squeakfoundation.org; packages@lists.squeakfoundation.org<br>
<b>Betreff:</b> [squeak-dev] The Trunk: Kernel-eem.1296.mcz</span>
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<div class="PlainText">Eliot Miranda uploaded a new version of Kernel to project The Trunk:<br>
<a href="http://source.squeak.org/trunk/Kernel-eem.1296.mcz">http://source.squeak.org/trunk/Kernel-eem.1296.mcz</a><br>
<br>
==================== Summary ====================<br>
<br>
Name: Kernel-eem.1296<br>
Author: eem<br>
Time: 18 February 2020, 7:43:15.608431 pm<br>
UUID: 78e95030-3521-4dd9-b26c-2c8c7939010b<br>
Ancestors: Kernel-eem.1295, Kernel-tonyg.1293<br>
<br>
Fix a bug in allMethodCategoriesIntegratedThrough: which can cause an error in the Debugger when prompting to define a new method.<br>
<br>
Fix bugs in CompiledCode>>messagesDo:/selectorsDo: and define the former in terms of the latter (since the former is a misnomer).<br>
<br>
Fix a bug in the definition of CompiledMethod>>hasSameLiteralsAs: which should not be confused by the methodClass literal.<br>
<br>
Fix perform:with:with:with:with:with:'s comment.<br>
<br>
=============== Diff against Kernel-tonyg.1293 ===============<br>
<br>
Item was changed:<br>
----- Method: Behavior>>instSpec (in category 'testing') -----<br>
instSpec<br>
"Answer the instance specification part of the format that defines what kind of object<br>
an instance of the receiver is. The formats are<br>
0 = 0 sized objects (UndefinedObject True False et al)<br>
1 = non-indexable objects with inst vars (Point et al)<br>
2 = indexable objects with no inst vars (Array et al)<br>
3 = indexable objects with inst vars (Context BlockClosure AdditionalMethodState et al)<br>
4 = weak indexable objects with inst vars (WeakArray et al)<br>
5 = weak non-indexable objects with inst vars (ephemerons) (Ephemeron)<br>
6 = unused<br>
7 = immediates (SmallInteger, Character)<br>
8 = unused<br>
+ 9 = 64-bit indexable (DoubleWordArray et al)<br>
+ 10-11 = 32-bit indexable (WordArray et al) (includes one odd bit, unused in 32-bit instances)<br>
+ 12-15 = 16-bit indexable (DoubleByteArray et al) (includes two odd bits, one unused in 32-bit instances)<br>
+ 16-23 = 8-bit indexable (ByteArray et al) (includes three odd bits, one unused in 32-bit instances)<br>
+ 24-31 = compiled code (CompiledCode et al) (includes three odd bits, one unused in 32-bit instances)<br>
+ <br>
- 9 = 64-bit indexable<br>
- 10-11 = 32-bit indexable (Bitmap) (plus one odd bit, unused in 32-bits)<br>
- 12-15 = 16-bit indexable (plus two odd bits, one unused in 32-bits)<br>
- 16-23 = 8-bit indexable (plus three odd bits, one unused in 32-bits)<br>
- 24-31 = compiled methods (CompiledMethod) (plus three odd bits, one unused in 32-bits)<br>
Note that in the VM instances also have a 5 bit format field that relates to their class's format.<br>
Formats 11, 13-15, 17-23 & 25-31 are unused in classes but used in instances to define the<br>
number of elements missing up to the slot size. For example, a 2-byte ByteString instance<br>
+ has format 18 in 32 bits, since its size is one 32-bit slot - 2 bytes ((18 bitAnd: 3) = 2), and<br>
+ 22 in 64 bits, since its size is one 64-bit slot - 6 bytes ((22 bitAnd: 7) = 6).<br>
+ Formats 24-31 are for compiled code which is a combination of pointers and bytes. The number of pointers is<br>
+ determined by literal count field of the method header, which is the first field of the object and must be a SmallInteger.
<br>
+ The literal count field occupies the least significant 15 bits of the method header, allowing up to 32,767 pointer fields,<br>
+ not including the header."<br>
- has format 18 in 32-bits, since its size is one 32-bit slot - 2 bytes ((18 bitAnd: 3) = 2), and<br>
- 22 in 64 bits, since its size is one 64-bit slot - 6 bytes ((22 bitAnd: 7) = 6)."<br>
^(format bitShift: -16) bitAnd: 16r1F!<br>
<br>
Item was changed:<br>
----- Method: ClassDescription>>allMethodCategoriesIntegratedThrough: (in category 'accessing method dictionary') -----<br>
allMethodCategoriesIntegratedThrough: mostGenericClass<br>
"Answer a list of all the method categories of the receiver and all its superclasses, up through mostGenericClass"<br>
<br>
| aColl |<br>
+ aColl := Set new.<br>
- aColl := OrderedCollection new.<br>
self withAllSuperclasses do:<br>
[:aClass |<br>
+ (aClass includesBehavior: mostGenericClass) ifTrue:<br>
+ [aColl addAll: aClass organization categories]].<br>
- (aClass includesBehavior: mostGenericClass)<br>
- ifTrue: [aColl addAll: aClass organization categories]].<br>
aColl remove: 'no messages' asSymbol ifAbsent: [].<br>
<br>
+ ^aColl asArray sort: [:a :b | a asLowercase < b asLowercase]<br>
- ^aColl asSet asArray sort: [:a :b | a asLowercase < b asLowercase]<br>
<br>
"ColorTileMorph allMethodCategoriesIntegratedThrough: TileMorph"!<br>
<br>
Item was changed:<br>
----- Method: CompiledCode>>messagesDo: (in category 'scanning') -----<br>
messagesDo: workBlock<br>
+ "Evaluate aBlock with all the message selectors sent by me. Duplicate seletors are possible."<br>
- "Evaluate aBlock with all the message selectors sent by me. Duplicate sends possible."<br>
<br>
+ "If anything should be deprecated it is messagesDo:; it can be an extension in AST/Refactoring.<br>
+ This method enumerates over selectors, not messages. c.f. Behavior>>selectorsDo: etc"<br>
+ ^self selectorsDo: workBlock!<br>
- | scanner selector |<br>
- self isQuick ifTrue: [^ self].<br>
- <br>
- self codeLiteralsDo: [:compiledCode | <br>
- scanner := InstructionStream on: compiledCode.<br>
- scanner scanFor: [ :x | <br>
- (selector := scanner selectorToSendOrSelf) == scanner<br>
- ifFalse: [workBlock value: selector].<br>
- false "keep scanning" ] ].!<br>
<br>
Item was added:<br>
+ ----- Method: CompiledCode>>selectorsDo: (in category 'scanning') -----<br>
+ selectorsDo: workBlock<br>
+ "Evaluate aBlock with all the message selectors sent by me. Duplicate selectors are possible."<br>
+ <br>
+ | encoderClass |<br>
+ self isQuick ifTrue: [^self].<br>
+ encoderClass := self encoderClass.<br>
+ self codeLiteralsDo:<br>
+ [:compiledCode | | scanner limit |<br>
+ limit := compiledCode size - 1.<br>
+ (scanner := InstructionStream on: compiledCode) scanFor:<br>
+ [:byte| | selector |<br>
+ (selector := scanner selectorToSendOrSelf) ~~ scanner ifTrue:<br>
+ [workBlock value: selector].<br>
+ ((encoderClass isExtension: byte)<br>
+ and: [scanner pc < limit]) ifTrue:<br>
+ [scanner pc: scanner pc + (encoderClass bytecodeSize: (compiledCode at: scanner pc + 2))].<br>
+ false "keep scanning"]]!<br>
<br>
Item was changed:<br>
----- Method: CompiledCode>>sendsMessage: (in category 'testing') -----<br>
+ sendsMessage: aSelector<br>
+ "eem: this should be deprecated. This method does not check if a method sends a message;<br>
+ it checks if a method sends a message with a particular selector."<br>
+ self flag: #todo.<br>
- sendsMessage: aSelector <br>
- <br>
self messagesDo: [:selector |<br>
selector = aSelector ifTrue: [^ true]].<br>
^ false!<br>
<br>
Item was changed:<br>
----- Method: CompiledCode>>sendsSelector: (in category 'testing') -----<br>
sendsSelector: aSelector <br>
+ "Answer if the receiver sends a message whose selector is aSelector."<br>
<br>
+ self selectorsDo:<br>
+ [:selector | selector = aSelector ifTrue: [^true]].<br>
+ self flag: #todo. "The use of #= instead of #== is extremely dubious, and IMO erroneous. eem 2/18/2020"<br>
+ ^false!<br>
- self flag: #todo. "mt: Deprecate? AST/Refactoring project needs it..."<br>
- ^ self sendsMessage: aSelector!<br>
<br>
Item was changed:<br>
----- Method: CompiledMethod>>hasSameLiteralsAs: (in category 'comparing') -----<br>
hasSameLiteralsAs: aMethod<br>
"Answer whether the receiver has the same sequence of literals as the argument.<br>
Compare the last literal, which is the class association, specially so as not to<br>
differentiate between otherwise identical methods installed in different classes.<br>
Compare the first literal carefully if it is the binding informaiton for an FFI or<br>
external primitive call. Don't compare all of the state so that linked and unlinked<br>
methods are still considered equal."<br>
| numLits |<br>
numLits := self numLiterals.<br>
numLits = aMethod numLiterals ifFalse: [^false].<br>
1 to: numLits do:<br>
[:i| | lit1 lit2 |<br>
lit1 := self literalAt: i.<br>
lit2 := aMethod literalAt: i.<br>
(lit1 == lit2 or: [lit1 literalEqual: lit2]) ifFalse:<br>
[(i = 1 and: [#(117 120) includes: self primitive])<br>
ifTrue:<br>
[lit1 isArray<br>
ifTrue:<br>
[(lit2 isArray and: [(lit1 first: 2) = (lit2 first: 2)]) ifFalse:<br>
[^false]]<br>
ifFalse: "ExternalLibraryFunction"<br>
[(lit1 analogousCodeTo: lit2) ifFalse:<br>
[^false]]]<br>
ifFalse:<br>
[i = (numLits - 1)<br>
ifTrue: "properties"<br>
[(self properties analogousCodeTo: aMethod properties)<br>
ifFalse: [^false]]<br>
ifFalse: "last literal (methodClassAssociation) of class-side methods is not unique"<br>
"last literal of CompiledBlock is outerMethod and may not be unique."<br>
[(self isCompiledBlock<br>
and: [lit1 isCompiledCode<br>
and: [lit2 isCompiledCode]]) ifTrue:<br>
[^true].<br>
(i = numLits<br>
+ and: [lit1 isVariableBinding and: [lit1 value isBehavior<br>
+ and: [lit2 isVariableBinding and: [lit2 value isBehavior]]]]) ifFalse:<br>
- and: [lit1 isVariableBinding<br>
- and: [lit2 isVariableBinding<br>
- and: [lit1 key == lit2 key<br>
- and: [lit1 value == lit2 value]]]]) ifFalse:<br>
[^false]]]]].<br>
^true!<br>
<br>
Item was changed:<br>
----- Method: Object>>perform:with:with:with:with:with: (in category 'message handling') -----<br>
perform: aSymbol with: firstObject with: secondObject with: thirdObject with: fourthObject with: fifthObject<br>
"Send the selector, aSymbol, to the receiver with the given arguments.<br>
+ Fail if the number of arguments expected by the selector is not five.<br>
- Fail if the number of arguments expected by the selector is not four.<br>
Primitive. Optional. See Object documentation whatIsAPrimitive."<br>
<br>
<primitive: 83><br>
^ self perform: aSymbol withArguments: { firstObject. secondObject. thirdObject. fourthObject. fifthObject }!<br>
<br>
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