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"
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COPYRIGHT (c) 2003 by eXept Software AG
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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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"{ Package: 'stx:libbasic3' }"
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"{ NameSpace: Packages }"
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Object subclass:#DictionaryStack
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instanceVariableNames:'collection'
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classVariableNames:''
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poolDictionaries:''
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category:'Package-helpers'
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!
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!DictionaryStack class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 2003 by eXept Software AG
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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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!DictionaryStack class methodsFor:'instance creation'!
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new
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^ self basicNew initialize.
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! !
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!DictionaryStack methodsFor:'* As yet uncategorized *'!
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collect:aBlock
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^ collection values collect:aBlock
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! !
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!DictionaryStack methodsFor:'adding & removing'!
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atKey:aSymbol
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^ collection at:aSymbol
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!
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atKey:aSymbol ifAbsent:aBlock
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^ collection at:aSymbol ifAbsent:aBlock
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!
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pop
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collection removeKey:collection last key
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!
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pop:aNumber
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aNumber timesRepeat:[ self pop].
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!
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popAt:aKey
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collection removeKey:aKey.
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!
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popAt:aKey ifAbsent:aBlock
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collection removeKey:aKey ifAbsent:aBlock.
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!
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pull
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^ self pop
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!
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pull:aNumber
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| col |
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col := collection last:aNumber.
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self pop:aNumber.
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^ col
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!
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pullAt:aKey
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^ collection removeKey:aKey.
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!
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pullAt:aKey ifAbsent:aBlock
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^ collection removeKey:aKey ifAbsent:aBlock.
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!
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push:aPackage
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^ collection at:aPackage name put:aPackage
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!
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removeKey:aSymbol
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^ collection removeKey:aSymbol
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!
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top
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^ collection last value
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! !
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!DictionaryStack methodsFor:'enumerating'!
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do:aBlock
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"goes through all the objects in the collection"
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collection reverseDo:[:anAssociation | aBlock value:anAssociation value]
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!
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select:aBlock
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^ collection values select:aBlock
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! !
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!DictionaryStack methodsFor:'initialization'!
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initialize
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collection := OrderedDictionary new.
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! !
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!DictionaryStack methodsFor:'queries'!
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includes:aPackage
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^ collection includes:aPackage
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!
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includesKey:aKey
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^ (collection includesKey:aKey)
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!
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isEmpty
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^ collection isEmpty
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!
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size
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^ collection size
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! !
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!DictionaryStack class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libbasic3/packages/DictionaryStack.st,v 1.2 2006-01-10 09:25:12 cg Exp $'
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! !
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