author | Claus Gittinger <cg@exept.de> |
Tue, 19 Jun 2018 14:43:47 +0200 | |
changeset 4134 | 92df688b5ffe |
parent 3812 | 18492d5d4423 |
permissions | -rw-r--r-- |
" COPYRIGHT (c) 2008 by eXept Software AG All Rights Reserved This software is furnished under a license and may be used only in accordance with the terms of that license and with the inclusion of the above copyright notice. This software may not be provided or otherwise made available to, or used by, any other person. No title to or ownership of the software is hereby transferred. " "{ Package: 'stx:libview2' }" "{ NameSpace: Smalltalk }" BlockValue subclass:#BooleanBlockValue instanceVariableNames:'' classVariableNames:'' poolDictionaries:'' category:'Interface-Support-Models' ! !BooleanBlockValue class methodsFor:'documentation'! copyright " COPYRIGHT (c) 2008 by eXept Software AG All Rights Reserved This software is furnished under a license and may be used only in accordance with the terms of that license and with the inclusion of the above copyright notice. This software may not be provided or otherwise made available to, or used by, any other person. No title to or ownership of the software is hereby transferred. " ! ! !BooleanBlockValue methodsFor:'logical operations'! & anotherBooleanValueHolder "return another valueHolder, which returns the logical and of myself and another valueHolder" ^ self class forLogical:self and:anotherBooleanValueHolder " |b1 b2 a| b1 := BooleanValueHolder new. b2 := BooleanValueHolder new. a := b1 & b2. b1 value:false. b2 value:true. a value. b1 value:true. a value. " ! logicalNot "return another valueHolder, which returns the logical not of myself" ^ self class forLogicalNot:self. " |b nb| b := BooleanValueHolder new. nb := b not. b value:true. nb value. b value:false. nb value. " ! | anotherBooleanValueHolder "return another valueHolder, which returns the logical or of myself and another valueHolder" ^ self class forLogical:self or:anotherBooleanValueHolder " |b1 b2 o| b1 := BooleanValueHolder new. b2 := BooleanValueHolder new. o := b1 | b2. b1 value:false. b2 value:false. o value. b1 value:true. o value. " "Modified (comment): / 27-07-2013 / 09:54:54 / cg" ! ! !BooleanBlockValue class methodsFor:'documentation'! version ^ '$Header$' ! version_CVS ^ '$Header$' ! !