/usr/share/gnu-smalltalk/examples/PrtHier.st is in gnu-smalltalk-common 3.2.5-1build2.
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| Print out the class hierarchy.
|
|
======================================================================"
"======================================================================
|
| Copyright 1988,92,94,95,1999,2000 Free Software Foundation, Inc.
| Written by Steve Byrne.
|
| 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 LICENSE. If not, write to the Free Software
| Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
======================================================================"
!Behavior methodsFor: 'demo'!
printHierarchy
"I print my entire subclass hierarchy to standard out."
self printSubclasses: 0
! !
!Behavior methodsFor: 'private'!
printSubclasses: level
"I print my name, and then all my subclasses, each indented according
to its position in the hierarchy."
| mySubclasses |
self indentToLevel: level.
Transcript nextPutAll: self name; nl.
mySubclasses := self subclasses asSortedCollection:
[ :a :b | (a name isNil or: [ b name isNil ])
ifTrue: [ true ]
ifFalse: [ a name <= b name ] ].
mySubclasses do:
[ :subclass | subclass class ~~ Metaclass
ifTrue: [ subclass printSubclasses: level + 1 ] ]
!
indentToLevel: level
level timesRepeat:
[ Transcript next: (self hierarchyIndent) put: Character space ]
!
hierarchyIndent
^4
! !
Object printHierarchy!
|