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1 " |
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2 COPYRIGHT (c) 1989/90/91 by Claus Gittinger |
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3 All Rights Reserved |
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4 |
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5 This software is furnished under a license and may be used |
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6 only in accordance with the terms of that license and with the |
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7 inclusion of the above copyright notice. This software may not |
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8 be provided or otherwise made available to, or used by, any |
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9 other person. No title to or ownership of the software is |
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10 hereby transferred. |
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11 " |
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12 |
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13 WriteStream subclass:#ReadWriteStream |
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14 instanceVariableNames:'' |
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15 classVariableNames:'' |
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16 poolDictionaries:'' |
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17 category:'Streams' |
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18 ! |
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19 |
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20 ReadWriteStream comment:' |
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21 |
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22 COPYRIGHT (c) 1989/90/91 by Claus Gittinger |
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23 All Rights Reserved |
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24 |
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25 @(#)RWStream.st 2.3 92/06/06 |
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26 '! |
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27 |
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28 !ReadWriteStream methodsFor: 'access-reading'! |
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29 |
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30 peek |
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31 (position > readLimit) ifTrue: [ ^ nil ]. |
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32 ^ collection at:position |
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33 ! |
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34 |
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35 next |
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36 |p| |
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37 (position > readLimit) ifTrue: [ ^ nil ]. |
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38 p := position. |
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39 position := position + 1. |
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40 ^ collection at:p |
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41 ! ! |