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"
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COPYRIGHT (c) 2004 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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8538
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"{ Package: 'stx:libbasic' }"
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Object subclass:#SharedPool
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Kernel-Classes'
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!
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!SharedPool class methodsFor:'documentation'!
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8728
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copyright
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"
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COPYRIGHT (c) 2004 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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documentation
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"
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A shared pool represents a set of bindings which are accessible to all classes
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which import the pool in its 'pool dictionaries'.
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SharedPool is NOT a dictionary but rather a name space.
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Bindings are represented by 'class variables' - as long as we have no better way to represent
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them at least.
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"
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! !
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!SharedPool class methodsFor:'Compatibility-V''Age'!
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declareConstant:constantName value:value
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self == SharedPool ifTrue:[ self error ].
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(self classVarNames includes:constantName) ifFalse:[
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self addClassVarName:constantName
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].
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self classVarAt:constantName put:value.
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! !
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!SharedPool class methodsFor:'name lookup'!
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bindingOf: varName
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"Answer the binding of some variable resolved in the scope of the receiver"
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| aSymbol binding |
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self halt:'unfinished implementation'.
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aSymbol := varName asSymbol.
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"First look in classVar dictionary."
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binding := self classPool bindingOf: aSymbol.
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binding ifNotNil:[^binding].
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"Next look in shared pools."
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self sharedPools do:[:pool |
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binding := pool bindingOf: aSymbol.
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binding ifNotNil:[^binding].
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].
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"subclassing and environment are not preserved"
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^nil
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!
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bindingsDo: aBlock
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self halt:'unfinished implementation'.
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^ self classPool bindingsDo: aBlock
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!
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classBindingOf: varName
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"For initialization messages grant the regular scope"
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self halt:'unfinished implementation'.
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^super bindingOf: varName
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8551
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!
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includesKey:aSymbol
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^ self keys includes:aSymbol
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"
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OpenGLConstants includesKey:#GL3Bytes
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"
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!
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keys
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^ self classVarNames
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"
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OpenGLConstants keys
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"
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! !
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!SharedPool class methodsFor:'printing & storing'!
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displayString
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"return a printed represenation - here, a reminder is appended,
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that this is not a regular class"
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self == SharedPool ifTrue:[
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^ super displayString
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].
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^ self name , ' (* SharedPool *)'
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! !
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!SharedPool class methodsFor:'queries'!
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isSharedPool
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^ self ~~ SharedPool
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! !
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!SharedPool class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libbasic/SharedPool.st,v 1.4 2006-02-03 16:32:35 cg Exp $'
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! !
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