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|
"======================================================================
|
| Array Method Definitions
|
|
======================================================================"
"======================================================================
|
| Copyright 1988,92,94,95,99,2000,2001,2008,2009
| Free Software Foundation, Inc.
| Written by Steve Byrne.
|
| This file is part of the GNU Smalltalk class library.
|
| The GNU Smalltalk class library is free software; you can redistribute it
| and/or modify it under the terms of the GNU Lesser General Public License
| as published by the Free Software Foundation; either version 2.1, or (at
| your option) any later version.
|
| The GNU Smalltalk class library 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 Lesser
| General Public License for more details.
|
| You should have received a copy of the GNU Lesser General Public License
| along with the GNU Smalltalk class library; see the file COPYING.LIB.
| If not, write to the Free Software Foundation, 59 Temple Place - Suite
| 330, Boston, MA 02110-1301, USA.
|
======================================================================"
ArrayedCollection subclass: Array [
<shape: #pointer>
<category: 'Collections-Sequenceable'>
<comment: 'My instances are objects that have array-like properties: they are directly
indexable by integers starting at 1, and they are fixed in size. I inherit
object creation behavior messages such as #with:, as well as iteration
and general access behavior from SequenceableCollection.'>
Array class >> from: anArray [
"Answer anArray, which is expected to be an array specified with a
brace-syntax expression per my inherited protocol."
<category: 'instance creation'>
^anArray
]
at: anIndex ifAbsent: aBlock [
"Answer the index-th indexed instance variable of the receiver"
<category: 'built ins'>
<primitive: VMpr_Object_basicAt>
^self checkIndexableBounds: anIndex ifAbsent: aBlock
]
printOn: aStream [
"Print a representation for the receiver on aStream"
<category: 'printing'>
aStream nextPut: $(.
self do:
[:elt |
elt printOn: aStream.
aStream space].
aStream nextPut: $)
]
isLiteralObject [
"Answer whether the receiver is expressible as a Smalltalk literal."
<category: 'printing'>
^self isReadOnly not
]
replaceFrom: start to: stop with: byteArray startingAt: replaceStart [
"Replace the characters from start to stop with new characters whose
ASCII codes are contained in byteArray, starting at the replaceStart
location of byteArray"
<category: 'built ins'>
<primitive: VMpr_ArrayedCollection_replaceFromToWithStartingAt>
^super
replaceFrom: start
to: stop
with: byteArray
startingAt: replaceStart
]
storeLiteralOn: aStream [
"Store a Smalltalk literal compiling to the receiver on aStream"
<category: 'printing'>
self class == Array ifFalse: [ ^super storeLiteralOn: aStream ].
aStream nextPut: $#.
aStream nextPut: $(.
self do:
[:elt |
elt storeLiteralOn: aStream.
aStream space].
aStream nextPut: $)
]
storeOn: aStream [
"Store Smalltalk code compiling to the receiver on aStream"
<category: 'printing'>
self class == Array ifFalse: [ ^super storeOn: aStream ].
self storeLiteralOn: aStream.
self isReadOnly ifFalse: [aStream nextPutAll: ' copy']
]
multiBecome: anArray [
"Transform every object in the receiver in each corresponding
object in anArray. anArray and the receiver must have the same
size"
<category: 'mutating objects'>
| index |
index := 0.
^self collect:
[:object |
index := index + 1.
object become: (anArray at: index)]
]
isArray [
<category: 'testing'>
^true
]
]
|
