author | Claus Gittinger <cg@exept.de> |
Thu, 21 Mar 1996 16:33:40 +0100 | |
changeset 1113 | 840b03d131d7 |
parent 1056 | 991ed2a9318b |
child 1126 | 497de696dff0 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1991 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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Set subclass:#Dictionary |
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instanceVariableNames:'valueArray' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Collections-Unordered' |
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! |
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||
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!Dictionary class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1991 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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a Dictionary is (conceptionally) a set of Associations storing key-value pairs. |
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(The implementation uses two arrays to store the keys and values separately.) |
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Searching for an element is done using a hash into the key array. |
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Another way of looking at a dictionary is as a array which uses |
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arbitrary access keys (i.e. not just integers as arrays do). |
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Since the keys are unordered, no internal element order is defined |
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(i.e. enumerating them may return elements in any order - even changing |
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over time). |
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Many methods for searching and hashing are inherited from Set. |
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Instance variables: |
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keyArray <Array> (from Set) the keys |
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valueArray <Array> the values ('valueArray at:index' corresponds |
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to the value stored under 'keyArray at:index') |
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Performance hints: |
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since the dictionary does not really store associations internally, |
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it is less efficient, to store/retrieve associations. The reason is |
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that these assocs are created temporarily in some extract methods. |
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I.e. 'at:key put:value' is faster than 'add:anAssoc' |
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and 'keysAndValuesDo:' is faster than 'associationsDo:' etc. |
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If only symbols or smallIntegers are used as keys, use IdentityDictionaries |
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for slightly better performance, since both hashing and comparison is faster. |
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If you have a rough idea how big the dictionary is going to grow, |
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create it using #new: instead of #new. Even if the size given is a |
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poor guess (say half of the real size), there is some 20-30% performance |
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win to expect, since many resizing operations are avoided when associations |
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are added. |
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See also: Set, IdentityDictionary, IdentitySet, WeakIdentitySet and |
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WeakIdentityDictionary |
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" |
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! ! |
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||
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!Dictionary class methodsFor:'instance creation'! |
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withKeys:keyArray andValues:valueArray |
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"return a new instance where keys and values are taken from |
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the argumentArrays." |
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|newDict sz "{ Class: SmallInteger }"| |
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sz := keyArray size. |
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newDict := self new:sz. |
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keyArray with:valueArray do:[:key :value | |
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newDict at:key put:value |
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]. |
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^ newDict |
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||
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" |
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Dictionary withKeys:#('one' 'two' 'three' 'four') |
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andValues:#(1 2 3 4) |
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" |
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! |
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||
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withKeysAndValues:anArray |
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"return a new instance where keys and values are taken from alternating |
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elements of anArray" |
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|newDict sz "{ Class: SmallInteger }"| |
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sz := anArray size. |
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newDict := self new:(sz // 2). |
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1 to:sz by:2 do:[:i | |
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newDict at:(anArray at:i) put:(anArray at:i+1) |
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]. |
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^ newDict |
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" |
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Dictionary withKeysAndValues:#('one' 1 'two' 2 'three' 3 'four' 4) |
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" |
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! ! |
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||
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!Dictionary methodsFor:'accessing'! |
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||
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associationAt:aKey |
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"return an association consisting of aKey and the element indexed |
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by aKey - |
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report an error, if no element is stored under aKey" |
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^ aKey -> (self at:aKey) |
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! |
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associationAt:aKey ifAbsent:exceptionBlock |
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"return an association consisting of aKey and the element indexed by aKey - |
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return result of exceptionBlock if no element is stored under aKey" |
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^ aKey -> (self at:aKey ifAbsent:[^ exceptionBlock value]) |
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! |
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associations |
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"return an ordered collection containing the receivers associations." |
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|coll| |
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coll := OrderedCollection new:(keyArray size). |
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self associationsDo:[:assoc | coll add:assoc]. |
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^ coll |
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! |
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at:aKey |
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"return the element indexed by aKey - report an error if none found" |
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|index| |
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aKey isNil ifTrue:[ |
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"/ nil is not allowed as key |
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^ self errorInvalidKey:aKey |
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]. |
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"/ |
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"/ I could have written: |
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"/ index := self find:aKey ifAbsent:[^ self errorKeyNotFound:aKey] |
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"/ but the code below is slighlty more efficient, since it avoids |
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"/ a block creation ([0] is very cheap) - thus speeding up the good case. |
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index := self find:aKey ifAbsent:0. |
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index == 0 ifTrue:[ |
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"no such key" |
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^ self errorKeyNotFound:aKey |
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]. |
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^ valueArray basicAt:index |
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! |
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at:aKey ifAbsent:exceptionBlock |
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"return the element indexed by aKey - |
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return result of exceptionBlock if no element is stored under aKey" |
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|index| |
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aKey isNil ifTrue:[ |
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"/ nil is not allowed as key |
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"/ |
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"/ previous versions of ST/X raised an error |
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"/ here. However, there seem to exist applications |
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"/ which depend on getting the exceptionBlocks value |
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"/ in this case ... well ... |
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"/ ^ self errorInvalidKey:aKey |
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^ exceptionBlock value |
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]. |
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"/ I could have written: |
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"/ index := self find:aKey ifAbsent:[^ exceptionBlock value] |
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"/ but the code below is slighlty more efficient, since it avoids |
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"/ a block creation ([0] is very cheap) - thus speeding up the good case. |
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index := self find:aKey ifAbsent:0. |
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index == 0 ifTrue:[^ exceptionBlock value]. |
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^ valueArray basicAt:index |
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! |
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at:aKey put:anObject |
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"add the argument anObject under key, aKey to the receiver. |
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WARNING: do not add elements while iterating over the receiver. |
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Iterate over a copy to do this." |
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|index| |
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aKey isNil ifTrue:[ |
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"nil is not allowed as key" |
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self errorInvalidKey:aKey |
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] ifFalse:[ |
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index := self findKeyOrNil:aKey. |
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(valueArray basicAt:index) notNil ifTrue:[ |
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valueArray basicAt:index put:anObject. |
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^ anObject |
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]. |
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keyArray basicAt:index put:aKey. |
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valueArray basicAt:index put:anObject. |
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tally := tally + 1. |
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self fullCheck. |
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]. |
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^ anObject |
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"Modified: 1.3.1996 / 21:24:13 / cg" |
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! |
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||
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keyAtEqualValue:aValue |
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"return the key whose value is equal (i.e. using #= for compare) |
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to the argument, nil if none found. |
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This is a slow access, since there is no fast reverse mapping. |
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NOTICE: |
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The value is searched using equality compare; |
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use #keyAtValue: to compare for identity." |
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^ self keyAtEqualValue:aValue ifAbsent:[nil] |
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! |
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||
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keyAtEqualValue:aValue ifAbsent:exceptionBlock |
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"return the key whose value is equal (i.e. using #= for compare) |
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to the argument, if not found, return the value of exceptionBlock. |
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This is a slow access, since there is no fast reverse mapping. |
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NOTICE: |
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The value is searched using equality compare; |
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use #keyAtValue:ifAbsent: to compare for identity." |
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|idx| |
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idx := valueArray indexOf:aValue. |
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idx ~~ 0 ifTrue:[ |
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^ keyArray at:idx |
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]. |
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"/ keyArray keysAndValuesDo:[:index :aKey | |
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"/ (aKey notNil and:[aKey ~~ DeletedEntry]) ifTrue:[ |
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"/ (valueArray at:index) = aValue ifTrue:[^ aKey]. |
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"/ ]. |
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"/ ]. |
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^ exceptionBlock value |
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! |
256 |
||
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keyAtValue:aValue |
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"return the key whose value is identical (i.e. using #== for compare) |
259 |
to the argument, nil if none found. |
|
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This is a slow access, since there is no fast reverse mapping. |
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NOTICE: |
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The value is searched using identity compare; |
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use #keyAtEqualValue: to compare for equality." |
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^ self keyAtValue:aValue ifAbsent:[nil] |
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! |
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||
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keyAtValue:aValue ifAbsent:exceptionBlock |
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"return the key whose value is identical (i.e. using #== for compare) |
270 |
to the argument, if not found, return the value of exceptionBlock. |
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This is a slow access, since there is no fast reverse mapping. |
272 |
NOTICE: |
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The value is searched using identity compare; |
357 | 274 |
use #keyAtEqualValue:ifAbsent: to compare for equality." |
10 | 275 |
|
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|idx| |
277 |
||
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idx := valueArray identityIndexOf:aValue. |
|
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idx ~~ 0 ifTrue:[ |
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^ keyArray at:idx |
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]. |
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"/ keyArray keysAndValuesDo:[:index :aKey | |
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"/ (aKey notNil and:[aKey ~~ DeletedEntry]) ifTrue:[ |
285 |
"/ (valueArray at:index) == aValue ifTrue:[^ aKey]. |
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"/ ]. |
|
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"/ ]. |
288 |
||
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^ exceptionBlock value |
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! |
291 |
||
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keys |
293 |
"return a collection containing all keys of the receiver" |
|
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||
295 |
|keySet| |
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|
609 | 297 |
keySet := self emptyCollectionForKeys. |
298 |
keyArray do:[:key | |
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299 |
(key notNil and:[key ~~ DeletedEntry]) ifTrue:[ |
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keySet add:key |
|
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] |
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]. |
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^ keySet |
|
357 | 304 |
! |
305 |
||
609 | 306 |
values |
307 |
"return a collection containing all values of the receiver" |
|
359 | 308 |
|
609 | 309 |
"old: |
310 |
kk: this fails if the receiver contains nils |
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311 |
^ valueArray asBag |
|
312 |
new: |
|
313 |
" |
|
314 |
|aCollection| |
|
359 | 315 |
|
609 | 316 |
aCollection := OrderedCollection new:valueArray size. |
317 |
self do:[:value| aCollection add:value]. |
|
318 |
^ aCollection |
|
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! ! |
320 |
||
321 |
!Dictionary methodsFor:'adding & removing'! |
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322 |
||
323 |
add:anAssociation |
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"add the argument, anAssociation to the receiver. |
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|
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WARNING: do not add elements while iterating over the receiver. |
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parents:
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changeset
|
327 |
Iterate over a copy to do this." |
1 | 328 |
|
329 |
self at:(anAssociation key) put:(anAssociation value). |
|
330 |
^ anAssociation |
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"Modified: 1.3.1996 / 21:23:53 / cg" |
1 | 333 |
! |
334 |
||
345 | 335 |
declare:key from:aDictionary |
336 |
"if the receiver does not include an association for key, |
|
337 |
take the association from aDictionary and add it to the receiver. |
|
338 |
If aDictionary does not contain such an association, use nil |
|
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as the value of the new dictionary. |
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|
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341 |
WARNING: do not add elements while iterating over the receiver. |
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parents:
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|
342 |
Iterate over a copy to do this." |
345 | 343 |
|
344 |
|value| |
|
345 |
||
346 |
(self includesKey:key) ifFalse:[ |
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347 |
value := aDictionary at:key ifAbsent:nil. |
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|
348 |
self at:key put:value. |
345 | 349 |
] |
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351 |
"Modified: 1.3.1996 / 21:24:03 / cg" |
345 | 352 |
! |
353 |
||
1 | 354 |
remove:oldObject ifAbsent:aBlock |
355 |
"remove oldObject from the collection and return it. |
|
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If it was not in the collection return the value of aBlock. |
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|
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|
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|
358 |
This is blocked here; you have to use one of |
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|
359 |
#removeKey:, #saveRemoveKey:, #removeAssociation:, |
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|
360 |
#removeValue: or #saveRemoveValue:" |
1 | 361 |
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362 |
^ self shouldNotImplement |
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|
364 |
"Modified: 1.3.1996 / 21:21:38 / cg" |
1 | 365 |
! |
366 |
||
367 |
removeAssociation:assoc |
|
368 |
"remove the association from the collection. |
|
641
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diff
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|
369 |
If it was not in the collection report an error. |
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parents:
633
diff
changeset
|
370 |
Only the key is used in the passed argument, and a new |
1053
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|
371 |
association, for the key and the previously stored value is returned. |
ac1ea83233e6
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changeset
|
372 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
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parents:
641
diff
changeset
|
373 |
WARNING: do not remove elements while iterating over the receiver. |
ac1ea83233e6
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parents:
641
diff
changeset
|
374 |
See #saveRemoveKey: to do this." |
1 | 375 |
|
641
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|
376 |
|key| |
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|
377 |
|
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parents:
633
diff
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|
378 |
key := assoc key. |
ef3bcf9de54b
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parents:
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diff
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|
379 |
^ key -> (self removeKey:key) |
ef3bcf9de54b
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parents:
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diff
changeset
|
380 |
|
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|
381 |
"Modified: 1.3.1996 / 21:21:11 / cg" |
1 | 382 |
! |
383 |
||
384 |
removeKey:aKey |
|
385 |
"remove the association under aKey from the collection. |
|
1053
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diff
changeset
|
386 |
If it was not in the collection report an error. |
ac1ea83233e6
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parents:
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diff
changeset
|
387 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
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parents:
641
diff
changeset
|
388 |
WARNING: do not remove elements while iterating over the receiver. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
389 |
See #saveRemoveKey: to do this." |
1 | 390 |
|
641
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parents:
633
diff
changeset
|
391 |
^ self removeKey:aKey ifAbsent:[self errorKeyNotFound:aKey] |
1053
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changeset
|
392 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
393 |
"Modified: 1.3.1996 / 21:21:52 / cg" |
1 | 394 |
! |
395 |
||
396 |
removeKey:aKey ifAbsent:aBlock |
|
641
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Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
397 |
"remove the association under aKey from the collection, |
ef3bcf9de54b
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Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
398 |
return the value previously stored there.. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
399 |
If it was not in the collection return the result |
1053
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parents:
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diff
changeset
|
400 |
from evaluating aBlock. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
401 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
402 |
WARNING: do not remove elements while iterating over the receiver. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
403 |
See #saveRemoveKey: to do this." |
1 | 404 |
|
3 | 405 |
|index "{ Class:SmallInteger }" |
641
ef3bcf9de54b
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parents:
633
diff
changeset
|
406 |
next "{ Class:SmallInteger }" |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
407 |
oldValue| |
1 | 408 |
|
409 |
aKey isNil ifTrue:[ |
|
1053
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parents:
641
diff
changeset
|
410 |
^ self errorInvalidKey:aKey |
641
ef3bcf9de54b
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Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
411 |
]. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
412 |
|
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
413 |
"/ below, I could have written: |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
414 |
"/ index := self find:aKey ifAbsent:[^ aBlock value] |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
415 |
"/ but the code below is slighlty more efficient, since it avoids |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
416 |
"/ a garbage block creation - thus speeding up the good case. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
417 |
|
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
418 |
index := self find:aKey ifAbsent:0. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
419 |
index == 0 ifTrue:[^ aBlock value]. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
420 |
|
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
421 |
oldValue := valueArray basicAt:index. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
422 |
|
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
423 |
valueArray basicAt:index put:nil. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
424 |
keyArray basicAt:index put:nil. |
77 | 425 |
|
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
426 |
tally := tally - 1. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
427 |
tally == 0 ifTrue:[ |
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
428 |
self setTally:0 |
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
429 |
] ifFalse:[ |
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
430 |
index == keyArray basicSize ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
431 |
next := 1 |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
432 |
] ifFalse:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
433 |
next := index + 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
434 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
435 |
(keyArray basicAt:next) notNil ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
436 |
keyArray basicAt:index put:DeletedEntry |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
437 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
438 |
self emptyCheck |
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
439 |
]. |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
440 |
^ oldValue |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
441 |
|
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
442 |
"Modified: 1.3.1996 / 21:21:01 / cg" |
77 | 443 |
! |
444 |
||
445 |
removeValue:aValue ifAbsent:aBlock |
|
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
446 |
"remove (first) the association to aValue from the collection, |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
447 |
return the key under which it was stored previously. |
77 | 448 |
If it was not in the collection return result from evaluating aBlock. |
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
449 |
The value is searched using equality compare here, |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
450 |
but identity compare in the IdentityDictionary subclass. |
77 | 451 |
|
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
452 |
Notice, this does a linear search through the values and may |
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
453 |
therefore be slow for big dictionaries. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
454 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
455 |
WARNING: do not remove elements while iterating over the receiver. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
456 |
See #saveRemoveValue: to do this." |
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
457 |
|
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
458 |
|next "{ Class:SmallInteger }" |
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
459 |
oldKey| |
77 | 460 |
|
461 |
aValue notNil ifTrue:[ |
|
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
462 |
keyArray keysAndValuesDo:[:index :aKey | |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
463 |
|idx "{Class:SmallInteger}"| |
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
464 |
|
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
465 |
(aKey notNil and:[aKey ~~ DeletedEntry]) ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
466 |
idx := index. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
467 |
(self compareSame:(valueArray at:idx) with:aValue) ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
468 |
"found it" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
469 |
valueArray basicAt:idx put:nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
470 |
oldKey := keyArray basicAt:idx. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
471 |
keyArray basicAt:idx put:nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
472 |
tally := tally - 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
473 |
tally == 0 ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
474 |
self setTally:0. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
475 |
^ oldKey |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
476 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
477 |
idx == keyArray basicSize ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
478 |
next := 1 |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
479 |
] ifFalse:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
480 |
next := index + 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
481 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
482 |
(keyArray basicAt:next) notNil ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
483 |
keyArray basicAt:idx put:DeletedEntry |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
484 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
485 |
self emptyCheck. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
486 |
^ oldKey |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
487 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
488 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
489 |
] |
77 | 490 |
]. |
491 |
^ aBlock value |
|
641
ef3bcf9de54b
return values in remove*** methods fixed (ST-80 compatibility)
Claus Gittinger <cg@exept.de>
parents:
633
diff
changeset
|
492 |
|
1053
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
493 |
"Modified: 1.3.1996 / 21:22:11 / cg" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
494 |
! |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
495 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
496 |
saveRemoveKey:aKey |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
497 |
"remove the association under aKey from the collection. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
498 |
Return the value previously stored there. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
499 |
If it was not in the collection return nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
500 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
501 |
In contrast to #removeKey:, this does not resize the underlying collection |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
502 |
and therefore does NOT rehash & change the elements order. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
503 |
Therefor this can be used while enumerating the receiver, |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
504 |
which is not possible if #removeKey: is used. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
505 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
506 |
WARNING: since no resizing is done, the physical amount of memory used |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
507 |
by the container remains the same, although the logical size shrinks. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
508 |
You may want to manually resize the receiver using #emptyCheck." |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
509 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
510 |
|index "{ Class:SmallInteger }" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
511 |
next "{ Class:SmallInteger }" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
512 |
oldValue| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
513 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
514 |
aKey isNil ifTrue:[^ nil]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
515 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
516 |
index := self find:aKey ifAbsent:0. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
517 |
index == 0 ifTrue:[^ nil]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
518 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
519 |
oldValue := valueArray basicAt:index. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
520 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
521 |
valueArray basicAt:index put:nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
522 |
keyArray basicAt:index put:nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
523 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
524 |
tally := tally - 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
525 |
tally ~~ 0 ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
526 |
index == keyArray basicSize ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
527 |
next := 1 |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
528 |
] ifFalse:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
529 |
next := index + 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
530 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
531 |
(keyArray basicAt:next) notNil ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
532 |
keyArray basicAt:index put:DeletedEntry |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
533 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
534 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
535 |
^ oldValue |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
536 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
537 |
"does NOT work: |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
538 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
539 |
|d| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
540 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
541 |
d := Dictionary new. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
542 |
d at:'one' put:1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
543 |
d at:'two' put:2. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
544 |
d at:'three' put:3. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
545 |
d at:'four' put:4. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
546 |
d at:'five' put:5. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
547 |
d at:'six' put:6. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
548 |
d at:'seven' put:7. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
549 |
d at:'eight' put:8. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
550 |
d at:'nine' put:9. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
551 |
d keysAndValuesDo:[:k :v | |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
552 |
v odd ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
553 |
d removeKey:k |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
554 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
555 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
556 |
d inspect |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
557 |
" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
558 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
559 |
"DOES work: |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
560 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
561 |
|d| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
562 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
563 |
d := Dictionary new. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
564 |
d at:'one' put:1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
565 |
d at:'two' put:2. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
566 |
d at:'three' put:3. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
567 |
d at:'four' put:4. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
568 |
d at:'five' put:5. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
569 |
d at:'six' put:6. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
570 |
d at:'seven' put:7. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
571 |
d at:'eight' put:8. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
572 |
d at:'nine' put:9. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
573 |
d keysAndValuesDo:[:k :v | |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
574 |
v odd ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
575 |
d saveRemoveKey:k |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
576 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
577 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
578 |
d inspect |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
579 |
" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
580 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
581 |
"Created: 1.3.1996 / 21:14:42 / cg" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
582 |
"Modified: 1.3.1996 / 21:14:53 / cg" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
583 |
! |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
584 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
585 |
saveRemoveValue:aValue |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
586 |
"remove the (first) association to aValue from the collection, |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
587 |
return the key under which it was stored previously. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
588 |
If it was not in the collection return nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
589 |
The value is searched using equality compare here, |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
590 |
but identity compare in the IdentityDictionary subclass. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
591 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
592 |
In contrast to #removeValue:, this does not resize the underlying collection |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
593 |
and therefore does NOT rehash & change the elements order. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
594 |
Therefor this can be used while enumerating the receiver, |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
595 |
which is not possible if #removeValue: is used. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
596 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
597 |
WARNING: since no resizing is done, the physical amount of memory used |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
598 |
by the container remains the same, although the logical size shrinks. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
599 |
You may want to manually resize the receiver using #emptyCheck." |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
600 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
601 |
|next "{ Class:SmallInteger }" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
602 |
oldKey| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
603 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
604 |
aValue notNil ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
605 |
keyArray keysAndValuesDo:[:index :aKey | |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
606 |
|idx "{Class:SmallInteger}"| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
607 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
608 |
(aKey notNil and:[aKey ~~ DeletedEntry]) ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
609 |
idx := index. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
610 |
(self compareSame:(valueArray at:idx) with:aValue) ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
611 |
"found it" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
612 |
valueArray basicAt:idx put:nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
613 |
oldKey := keyArray basicAt:idx. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
614 |
keyArray basicAt:idx put:nil. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
615 |
tally := tally - 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
616 |
tally ~~ 0 ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
617 |
idx == keyArray basicSize ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
618 |
next := 1 |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
619 |
] ifFalse:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
620 |
next := index + 1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
621 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
622 |
(keyArray basicAt:next) notNil ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
623 |
keyArray basicAt:idx put:DeletedEntry |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
624 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
625 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
626 |
^ oldKey |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
627 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
628 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
629 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
630 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
631 |
^ aValue |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
632 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
633 |
"does NOT work: |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
634 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
635 |
|d| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
636 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
637 |
d := Dictionary new. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
638 |
d at:'one' put:1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
639 |
d at:'two' put:2. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
640 |
d at:'three' put:3. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
641 |
d at:'four' put:4. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
642 |
d at:'five' put:5. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
643 |
d at:'six' put:6. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
644 |
d at:'seven' put:7. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
645 |
d at:'eight' put:8. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
646 |
d at:'nine' put:9. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
647 |
d keysAndValuesDo:[:k :v | |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
648 |
v odd ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
649 |
d removeValue:v ifAbsent:nil |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
650 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
651 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
652 |
d inspect |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
653 |
" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
654 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
655 |
"DOES work: |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
656 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
657 |
|d| |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
658 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
659 |
d := Dictionary new. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
660 |
d at:'one' put:1. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
661 |
d at:'two' put:2. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
662 |
d at:'three' put:3. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
663 |
d at:'four' put:4. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
664 |
d at:'five' put:5. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
665 |
d at:'six' put:6. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
666 |
d at:'seven' put:7. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
667 |
d at:'eight' put:8. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
668 |
d at:'nine' put:9. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
669 |
d keysAndValuesDo:[:k :v | |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
670 |
v odd ifTrue:[ |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
671 |
d saveRemoveValue:v |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
672 |
] |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
673 |
]. |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
674 |
d inspect |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
675 |
" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
676 |
|
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
677 |
"Created: 1.3.1996 / 21:17:10 / cg" |
ac1ea83233e6
added saveRemoveKey:/saveRemoveValue: & commentaries
Claus Gittinger <cg@exept.de>
parents:
641
diff
changeset
|
678 |
"Modified: 1.3.1996 / 21:23:04 / cg" |
1 | 679 |
! ! |
680 |
||
155 | 681 |
!Dictionary methodsFor:'copying'! |
682 |
||
683 |
postCopy |
|
684 |
"have to copy the valueArray too" |
|
685 |
||
686 |
super postCopy. |
|
687 |
valueArray := valueArray shallowCopy |
|
688 |
! ! |
|
689 |
||
217 | 690 |
!Dictionary methodsFor:'enumerating'! |
1 | 691 |
|
692 |
allKeysDo:aBlock |
|
302 | 693 |
"perform the block for all keys in the collection. |
694 |
Obsolete: use keysDo: for ST-80 compatibility." |
|
1 | 695 |
|
155 | 696 |
^ super do:aBlock |
1 | 697 |
! |
698 |
||
699 |
associationsDo:aBlock |
|
1056 | 700 |
"perform the block for all associations in the collection. |
701 |
||
702 |
WARNING: do not add/remove elements while iterating over the receiver. |
|
703 |
Iterate over a copy to do this." |
|
1 | 704 |
|
38 | 705 |
|key n "{ Class: SmallInteger }"| |
1 | 706 |
|
707 |
tally == 0 ifTrue:[^ self]. |
|
38 | 708 |
n := keyArray basicSize. |
709 |
1 to:n do:[:index | |
|
1056 | 710 |
key := keyArray basicAt:index. |
711 |
(key notNil and:[key ~~ DeletedEntry]) ifTrue:[ |
|
712 |
aBlock value:(Association key:key value:(valueArray basicAt:index)) |
|
713 |
] |
|
1 | 714 |
] |
1056 | 715 |
|
716 |
"Modified: 1.3.1996 / 21:40:49 / cg" |
|
1 | 717 |
! |
718 |
||
609 | 719 |
collect:aBlock |
720 |
"for each element in the receiver, evaluate the argument, aBlock |
|
1056 | 721 |
and return a Bag with the results. |
722 |
||
723 |
WARNING: do not add/remove elements while iterating over the receiver. |
|
724 |
Iterate over a copy to do this." |
|
609 | 725 |
|
726 |
|newCollection| |
|
727 |
||
728 |
newCollection := Bag new. |
|
729 |
self do:[:each | |
|
1056 | 730 |
newCollection add:(aBlock value:each) |
609 | 731 |
]. |
732 |
^ newCollection |
|
1056 | 733 |
|
734 |
"Modified: 1.3.1996 / 21:40:43 / cg" |
|
609 | 735 |
! |
736 |
||
1 | 737 |
do:aBlock |
1056 | 738 |
"perform the block for all values in the collection. |
739 |
||
740 |
WARNING: do not add/remove elements while iterating over the receiver. |
|
741 |
Iterate over a copy to do this." |
|
1 | 742 |
|
38 | 743 |
|key n "{ Class: SmallInteger }"| |
1 | 744 |
|
745 |
tally == 0 ifTrue:[^ self]. |
|
38 | 746 |
n := keyArray basicSize. |
747 |
1 to:n do:[:index | |
|
1056 | 748 |
key := keyArray basicAt:index. |
749 |
(key notNil and:[key ~~ DeletedEntry]) ifTrue:[ |
|
750 |
aBlock value:(valueArray basicAt:index) |
|
751 |
]. |
|
1 | 752 |
] |
1056 | 753 |
|
754 |
"Modified: 1.3.1996 / 21:39:18 / cg" |
|
1 | 755 |
! |
756 |
||
3 | 757 |
keysAndValuesDo:aTwoArgBlock |
758 |
"evaluate the argument, aBlock for every element in the collection, |
|
1056 | 759 |
passing both key and element as arguments. |
760 |
||
761 |
WARNING: do not add/remove elements while iterating over the receiver. |
|
762 |
Iterate over a copy to do this." |
|
3 | 763 |
|
38 | 764 |
|key n "{ Class: SmallInteger }"| |
3 | 765 |
|
766 |
tally == 0 ifTrue:[^ self]. |
|
38 | 767 |
n := keyArray basicSize. |
768 |
1 to:n do:[:index | |
|
1056 | 769 |
key := keyArray basicAt:index. |
770 |
(key notNil and:[key ~~ DeletedEntry]) ifTrue:[ |
|
771 |
aTwoArgBlock value:key value:(valueArray basicAt:index) |
|
772 |
]. |
|
3 | 773 |
] |
1056 | 774 |
|
775 |
"Modified: 1.3.1996 / 21:39:49 / cg" |
|
3 | 776 |
! |
777 |
||
609 | 778 |
keysDo:aBlock |
1056 | 779 |
"perform the block for all keys in the collection. |
780 |
||
781 |
WARNING: do not add/remove elements while iterating over the receiver. |
|
782 |
Iterate over a copy to do this." |
|
1 | 783 |
|
609 | 784 |
^ super do:aBlock |
1056 | 785 |
|
786 |
"Modified: 1.3.1996 / 21:39:41 / cg" |
|
1 | 787 |
! |
788 |
||
789 |
select:aBlock |
|
790 |
"return a new collection with all elements from the receiver, for which |
|
77 | 791 |
the argument aBlock evaluates to true. The block gets the individual values |
1056 | 792 |
as its single argument. |
793 |
||
794 |
WARNING: do not add/remove elements while iterating over the receiver. |
|
795 |
Iterate over a copy to do this." |
|
1 | 796 |
|
797 |
|newCollection| |
|
798 |
||
799 |
newCollection := self species new. |
|
77 | 800 |
self keysAndValuesDo:[:key :value | |
1056 | 801 |
(aBlock value:value) ifTrue:[ |
802 |
newCollection at:key put:value |
|
803 |
] |
|
1 | 804 |
]. |
805 |
^ newCollection |
|
77 | 806 |
|
807 |
" |
|
808 |
|d| |
|
809 |
||
810 |
d := Dictionary new. |
|
811 |
d at:#foo put:#bar. |
|
812 |
d at:#bar put:#baz. |
|
813 |
d at:#baz put:#foo. |
|
814 |
||
815 |
d select:[:el | el startsWith:'b']. |
|
816 |
" |
|
1056 | 817 |
|
818 |
"Modified: 1.3.1996 / 21:40:17 / cg" |
|
1 | 819 |
! ! |
820 |
||
609 | 821 |
!Dictionary methodsFor:'inspecting'! |
822 |
||
823 |
inspectorClass |
|
824 |
"redefined to use DictionaryInspector |
|
825 |
(instead of the default Inspector)." |
|
826 |
||
827 |
^ DictionaryInspectorView |
|
828 |
! ! |
|
829 |
||
830 |
!Dictionary methodsFor:'printing & storing'! |
|
831 |
||
832 |
displayString |
|
833 |
"return a string for displaying" |
|
834 |
||
835 |
^ self stringWith:#displayString |
|
836 |
! |
|
837 |
||
838 |
printString |
|
839 |
"return a string for printing" |
|
840 |
||
841 |
^ self stringWith:#printString |
|
842 |
! |
|
843 |
||
844 |
storeOn:aStream |
|
845 |
"output a printed representation (which can be re-read) |
|
846 |
onto the argument aStream" |
|
847 |
||
848 |
|isEmpty| |
|
849 |
||
850 |
thisContext isRecursive ifTrue:[ |
|
851 |
Transcript showCr:'Error: storeOn: of self referencing collection.'. |
|
852 |
aStream nextPutAll:'#recursive'. |
|
853 |
^ self |
|
854 |
]. |
|
855 |
||
856 |
aStream nextPutAll:'('. |
|
857 |
aStream nextPutAll:(self class name). |
|
858 |
aStream nextPutAll:' new'. |
|
859 |
isEmpty := true. |
|
860 |
self keysAndValuesDo:[:key :value | |
|
861 |
aStream nextPutAll:' at:'. |
|
862 |
key storeOn:aStream. |
|
863 |
aStream nextPutAll:' put:'. |
|
864 |
value storeOn:aStream. |
|
865 |
aStream nextPutAll:'; '. |
|
866 |
isEmpty := false |
|
867 |
]. |
|
868 |
isEmpty ifFalse:[aStream nextPutAll:' yourself']. |
|
869 |
aStream nextPut:$) |
|
870 |
||
871 |
" |
|
872 |
Dictionary new storeOn:Transcript |
|
873 |
||
874 |
(Dictionary new at:1 put:'hello'; yourself) storeOn:Transcript |
|
875 |
" |
|
876 |
||
877 |
" |
|
878 |
|d| |
|
879 |
d := Dictionary new. |
|
880 |
d at:1 put:'hello'. |
|
881 |
d at:'hello' put:#world. |
|
882 |
d storeOn:Transcript |
|
883 |
" |
|
884 |
||
885 |
" |
|
886 |
|d| |
|
887 |
d := Dictionary new. |
|
888 |
d at:1 put:'hello'. |
|
889 |
d at:'hello' put:#world. |
|
890 |
d at:2 put:d. |
|
891 |
d storeOn:Transcript |
|
892 |
" |
|
893 |
! |
|
894 |
||
895 |
stringWith:aSelector |
|
896 |
"common code for printString & displayString" |
|
897 |
||
898 |
|thisString string noneYet| |
|
899 |
||
900 |
string := (self class name) , '('. |
|
901 |
noneYet := true. |
|
902 |
self associationsDo:[:element | |
|
903 |
thisString := element perform:aSelector. |
|
904 |
noneYet ifTrue:[noneYet := false] |
|
905 |
ifFalse:[thisString := ' ' , thisString]. |
|
906 |
string := string , thisString |
|
907 |
]. |
|
908 |
string := string , ')'. |
|
909 |
^string |
|
910 |
! ! |
|
911 |
||
1 | 912 |
!Dictionary methodsFor:'private'! |
913 |
||
345 | 914 |
compareSame:element1 with:element2 |
915 |
^ element1 = element2 |
|
916 |
! |
|
917 |
||
609 | 918 |
emptyCollectionForKeys |
919 |
^ Set new:(self size) |
|
1 | 920 |
! |
921 |
||
922 |
grow:newSize |
|
923 |
"grow the receiver to make space for at least newSize elements. |
|
924 |
To do this, we have to rehash into the new arrays. |
|
925 |
(which is done by re-adding all elements to a new, empty key/value array pair)." |
|
926 |
||
92 | 927 |
|key deletedEntry oldKeyArray oldValueArray n |
928 |
oldSize "{ Class:SmallInteger }" |
|
10 | 929 |
newIndex "{ Class:SmallInteger }" | |
1 | 930 |
|
10 | 931 |
oldKeyArray := keyArray. |
932 |
oldValueArray := valueArray. |
|
1 | 933 |
|
249 | 934 |
n := self class goodSizeFrom:newSize. |
935 |
oldSize := oldKeyArray size. |
|
936 |
n == oldSize ifTrue:[^ self]. |
|
937 |
||
10 | 938 |
keyArray := self keyContainerOfSize:n. |
92 | 939 |
valueArray := self valueContainerOfSize:n. |
1 | 940 |
|
249 | 941 |
|
92 | 942 |
deletedEntry := DeletedEntry. |
10 | 943 |
1 to:oldSize do:[:index | |
155 | 944 |
key := oldKeyArray basicAt:index. |
945 |
(key notNil and:[key ~~ deletedEntry]) ifTrue:[ |
|
946 |
newIndex := self findNil:key. |
|
947 |
keyArray basicAt:newIndex put:key. |
|
948 |
valueArray basicAt:newIndex put:(oldValueArray basicAt:index). |
|
949 |
] |
|
1 | 950 |
] |
951 |
! |
|
952 |
||
953 |
rehash |
|
954 |
"rehash contents - is done by re-adding all elements to a new, empty key/value array pair)." |
|
955 |
||
2 | 956 |
| oldKeyArray oldValueArray key |
957 |
n "{ Class:SmallInteger }" |
|
958 |
newIndex "{ Class:SmallInteger }" | |
|
1 | 959 |
|
960 |
oldKeyArray := keyArray. |
|
961 |
oldValueArray := valueArray. |
|
962 |
||
963 |
n := keyArray size. |
|
10 | 964 |
keyArray := self keyContainerOfSize:n. |
92 | 965 |
valueArray := self valueContainerOfSize:n. |
1 | 966 |
|
2 | 967 |
1 to:n do:[:index | |
155 | 968 |
key := oldKeyArray basicAt:index. |
969 |
(key notNil and:[key ~~ DeletedEntry]) ifTrue:[ |
|
970 |
newIndex := self findNil:key. |
|
971 |
keyArray basicAt:newIndex put:key. |
|
972 |
valueArray basicAt:newIndex put:(oldValueArray basicAt:index). |
|
973 |
] |
|
1 | 974 |
] |
975 |
! |
|
976 |
||
977 |
rehashFrom:startIndex |
|
77 | 978 |
"rehash elements starting at index - after a remove. |
979 |
NOTE: this method is no longer needed; |
|
155 | 980 |
the trick using DeletedEntry avoids the need to do this time |
981 |
consuming operation, making remove pretty fast :-) |
|
77 | 982 |
" |
1 | 983 |
|
984 |
|key i length |
|
985 |
index "{ Class:SmallInteger }" | |
|
986 |
||
987 |
length := keyArray basicSize. |
|
988 |
index := startIndex. |
|
989 |
key := keyArray basicAt:index. |
|
990 |
[key notNil] whileTrue:[ |
|
155 | 991 |
key ~~ DeletedEntry ifTrue:[ |
992 |
i := self findNil:key. |
|
993 |
i == index ifTrue:[ |
|
994 |
^ self |
|
995 |
]. |
|
996 |
keyArray basicAt:i put:key. |
|
997 |
valueArray basicAt:i put:(valueArray basicAt:index). |
|
998 |
keyArray basicAt:index put:nil. |
|
999 |
valueArray basicAt:index put:nil. |
|
1000 |
]. |
|
1001 |
index == length ifTrue:[ |
|
1002 |
index := 1 |
|
1003 |
] ifFalse:[ |
|
1004 |
index := index + 1. |
|
1005 |
]. |
|
1006 |
key := keyArray basicAt:index. |
|
1 | 1007 |
] |
77 | 1008 |
! |
1009 |
||
609 | 1010 |
setTally:count |
1011 |
"initialize the contents array (for at least count slots) |
|
1012 |
and set tally to zero. |
|
1013 |
The size is increased to the next prime for better hashing behavior." |
|
1 | 1014 |
|
609 | 1015 |
|n| |
1 | 1016 |
|
609 | 1017 |
n := self class goodSizeFrom:count. |
1018 |
keyArray := self keyContainerOfSize:n. |
|
1019 |
valueArray := self valueContainerOfSize:n. |
|
1020 |
tally := 0 |
|
44 | 1021 |
! |
1022 |
||
609 | 1023 |
valueContainerOfSize:n |
1024 |
"return a container for values of size n. |
|
1025 |
Extracted to make life of weak subclasses easier ..." |
|
44 | 1026 |
|
609 | 1027 |
^ Array basicNew:n |
1028 |
! ! |
|
1029 |
||
1030 |
!Dictionary methodsFor:'testing'! |
|
44 | 1031 |
|
609 | 1032 |
includes:anObject |
1033 |
"/ OLD: |
|
1034 |
"/ "return true, if there is an association in the receiver with the |
|
1035 |
"/ same key as the argument, anObject. |
|
1036 |
"/ NOTICE: in contrast to #includesAssociation:, this compares only the key." |
|
1037 |
"/ |
|
1038 |
"/ ^ self includesKey:(anObject key) |
|
1039 |
||
1040 |
"/ NEW: |
|
1041 |
"return true, if the argument, aValue is stored in the dictionary, |
|
1042 |
i.e. if there is an associaten, with aValue as value. |
|
1043 |
This is a slow search, since there is no fast reverse mapping; |
|
1044 |
the values have to be all scanned without any hashing. |
|
1045 |
You need a special collection (or two Dictionaries) to get this |
|
1046 |
reverse mapping fast." |
|
1047 |
||
1048 |
^ self includesValue:anObject |
|
1049 |
! |
|
68 | 1050 |
|
609 | 1051 |
includesAssociation:anAssociation |
1052 |
"return true, if there is an association in the receiver with the |
|
1053 |
same key and value as the argument, anAssociation. |
|
1054 |
NOTICE: in contrast to #includes:, this compares both key and value." |
|
1055 |
||
1056 |
|val| |
|
44 | 1057 |
|
609 | 1058 |
val := self at:(anAssociation key) ifAbsent:[^ false]. |
1059 |
^ (self compareSame:val with:anAssociation) value |
|
1060 |
! |
|
1061 |
||
1062 |
includesKey:aKey |
|
1063 |
"return true, if the argument, aKey is a key in the receiver" |
|
1064 |
||
1065 |
^ (self find:aKey ifAbsent:0) ~~ 0 |
|
1066 |
! |
|
293 | 1067 |
|
609 | 1068 |
includesValue:aValue |
1069 |
"return true, if the argument, aValue is stored in the dictionary, |
|
1070 |
i.e. if there is an associaten, with aValue as value. |
|
1071 |
This is a slow search, since there is no fast reverse mapping; |
|
1072 |
the values have to be all scanned without any hashing. |
|
1073 |
You need a special collection (or two Dictionaries) to get this |
|
1074 |
reverse mapping fast." |
|
293 | 1075 |
|
609 | 1076 |
^ valueArray includes:aValue |
1077 |
! |
|
293 | 1078 |
|
609 | 1079 |
occurrencesOf:anObject |
1080 |
"count & return how often anObject is stored in the dictionary. |
|
1081 |
This counts values - not keys." |
|
1082 |
||
1083 |
^ valueArray occurrencesOf:anObject |
|
1 | 1084 |
! ! |
609 | 1085 |
|
633 | 1086 |
!Dictionary class methodsFor:'documentation'! |
1087 |
||
1088 |
version |
|
1056 | 1089 |
^ '$Header: /cvs/stx/stx/libbasic/Attic/Dict.st,v 1.33 1996-03-01 20:42:07 cg Exp $' |
633 | 1090 |
! ! |