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mutate.st
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/
mutate.st
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"======================================================================
|
| Regression tests for class mutation
|
|
======================================================================"
"======================================================================
|
| Copyright (C) 2003 Free Software Foundation.
| Written by Paolo Bonzini.
|
| This file is part of GNU Smalltalk.
|
| GNU Smalltalk is free software; you can redistribute it and/or modify it
| under the terms of the GNU General Public License as published by the Free
| Software Foundation; either version 2, or (at your option) any later version.
|
| GNU Smalltalk is distributed in the hope that it will be useful, but WITHOUT
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
| FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
| details.
|
| You should have received a copy of the GNU General Public License along with
| GNU Smalltalk; see the file COPYING. If not, write to the Free Software
| Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
======================================================================"
Object subclass: #A
instanceVariableNames: 'var1'
classVariableNames: ''
poolDictionaries: ''
category: ''!
A subclass: #B
instanceVariableNames: 'var2'
classVariableNames: ''
poolDictionaries: ''
category: ''!
A class instanceVariableNames: 'instance'!
!A class methodsFor: 'testing'!
instance
instance isNil ifTrue: [ instance := self new ].
^instance! !
!A methodsFor: 'testing'!
printOn: aStream
aStream
nextPutAll: self class name;
nextPut: $(.
self class allInstVarNames keysAndValuesDo: [ :i :each |
aStream
nextPutAll: each;
nextPut: $: ;
print: (self instVarAt: i);
space
].
aStream nextPut: $)! !
!A methodsFor: 'testing'!
var1
^var1!
var1: a
var1 := a! !
!B methodsFor: 'testing'!
var2
^var2!
var2: a
var2 := a! !
A instance var1: 1.
A instance printNl.
B instance var1: 0.
B instance var2: 2.
B instance printNl.
A addInstVarName: #var2.
B instance var2 printNl.
B instance printNl.
A removeInstVarName: #var2.
B instance var2 printNl.
B instance printNl.
"Now make B's var2 point to A's"
A addInstVarName: #var2.
B removeInstVarName: #var2.
B instance var2 printNl.
B instance printNl!