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Aminet - June 1993 [Walnut Creek].iso
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util
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gnu
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gnu_smalltalk1_2.lha
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ByteArray.st
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1992-02-15
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3KB
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"======================================================================
|
| ByteArray Method Definitions
|
======================================================================"
"======================================================================
|
| Copyright (C) 1990, 1991, 1992 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
| sbb 14 Dec 91 Added asString -- generally useful functionality, but
| especially for STIX.
|
| sbb 28 Nov 91 Added growSize method -- 10 wasn't right, and we
| should probably base the grow size on the size of the
| object in question.
|
| sbb 28 Nov 91 Switched shallowCopy to use faster primitives.
|
| sbb 16 Mar 91 Class creation now separate statement.
|
| sbyrne 25 Apr 89 created.
|
"
ArrayedCollection variableByteSubclass: #ByteArray
instanceVariableNames: ''
classVariableNames: ''
poolDictionaries: ''
category: nil
!
ByteArray comment:
'My instances are similar to strings in that they are both represented as
a sequence of bytes, but my individual elements are integers, where as
a String''s elements are characters.' !
!ByteArray methodsFor: 'copying'!
shallowCopy
| newArray |
newArray _ self species new: self size.
newArray replaceFrom: 1 to: self size with: self.
" Off the top of my head, I can't think why we need to use the code below
instead of the faster code above
1 to: self size do:
[ :i | newArray at: i put: (self at: i) ].
"
^newArray
!
deepCopy
^self shallowCopy
! !
!ByteArray methodsFor: 'converting'!
asString
| string size |
size _ self size.
string _ String new: size.
string replaceFrom: 1 to: size withByteArray: self startingAt: 1.
^string
! !
"!ByteArray methodsFor: 'replacing'!
replaceFrom: start to: stop with: replacementByteArray startingAt: repStart
^self primReplaceFrom: start to: stop with: replacementByteArray
startingAt: repStart
! !
"
!ByteArray methodsFor: 'private'!
growSize
^40
! !