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Turnbull China Bikeride
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Turnbull China Bikeride - Disc 2.iso
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SysDict
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1991-09-13
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3KB
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82 lines
"======================================================================
|
| SystemDictionary Method Definitions
|
======================================================================"
"======================================================================
|
| Copyright (C) 1990, 1991 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA.
|
======================================================================"
"
| Change Log
| ============================================================================
| Author Date Change
| sbyrne 22 Apr 90 Fixed Dependencies to be an IdentityDictionary
| instead of a regular Dictionary. This has better
| semantics and is faster.
|
| sbyrne 4 Jul 89 added initBlocks methods.
|
| sbyrne 25 Apr 89 created.
|
"
Dictionary variableSubclass: #SystemDictionary
instanceVariableNames: ''
classVariableNames: ''
poolDictionaries: ''
category: nil.
SystemDictionary comment:
'I am a special form of dictionary. Typically I only have one instance,
called "Smalltalk", which is known to the Smalltalk interpreter. I define
several methods that are "system" related, such as #quitPrimitive.
My instance also helps keep track of dependencies between objects.' !
!SystemDictionary methodsFor: 'basic'!
initialize
InitBlocks _ OrderedCollection new.
self at: #Dependencies put: (IdentityDictionary new)
"### I don't think this is
the right way to do this"
!
addInit: aBlock
"Adds 'aBlock' to the array of blocks to be invoked after every start
of the system."
InitBlocks add: aBlock
!
doInits
"Called after the system has loaded the image, this will invoke any
init blocks that have been installed."
InitBlocks do: [ :aBlock | aBlock value ]
!
dependenciesAt: anObject
^(Smalltalk at: #Dependencies) at: anObject
!!