| author | Claus Gittinger <cg@exept.de> |
| Thu, 07 Dec 1995 22:25:39 +0100 | |
| changeset 137 | 449db28201ec |
| parent 114 | e577a2f332d0 |
| child 162 | cbbd2f3422a3 |
| permissions | -rw-r--r-- |
| 88 | 1 |
" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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e577a2f332d0
uff - version methods changed to return stings
Claus Gittinger <cg@exept.de>
parents:
96
diff
changeset
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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Model subclass:#Plug |
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instanceVariableNames:'simulatedProtocol' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Kernel-Objects' |
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! |
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!Plug class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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114
e577a2f332d0
uff - version methods changed to return stings
Claus Gittinger <cg@exept.de>
parents:
96
diff
changeset
|
25 |
All Rights Reserved |
| 88 | 26 |
|
27 |
This software is furnished under a license and may be used |
|
28 |
only in accordance with the terms of that license and with the |
|
29 |
inclusion of the above copyright notice. This software may not |
|
30 |
be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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A Plug is an objcet which simulates a protocol and evaluates |
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a corresponding block when receiving messages. |
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Its main use is for the demo doIts, to play the role of a model. |
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Plugs are not used in the system and exist as a demo only. |
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This class may be changed/removed/replaced without notice. |
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" |
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! |
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examples |
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" |
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|plug| |
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plug := Plug new. |
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plug respondTo:#foo with:[Transcript showCr:'received foo']. |
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plug respondTo:#foo: with:[:arg | Transcript showCr:'received foo: ', arg printString]. |
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plug foo. |
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plug foo:'some argument' |
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" |
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! ! |
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!Plug class methodsFor:'instance creation'! |
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new |
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^ super basicNew privateInitialize |
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! ! |
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!Plug methodsFor:'initialization'! |
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privateInitialize |
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"this method is NOT called initialize to allow plugging that |
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selector ..." |
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simulatedProtocol := IdentityDictionary new. |
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! ! |
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!Plug methodsFor:'message sending'! |
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doesNotUnderstand:aMessage |
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|block| |
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block := simulatedProtocol at:aMessage selector ifAbsent:[]. |
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block isNil ifTrue:[ |
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^ super doesNotUnderstand:aMessage |
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]. |
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^ block valueWithArguments:(aMessage arguments) |
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! ! |
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!Plug methodsFor:'protocol definition'! |
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respondTo:aSelector with:aBlock |
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simulatedProtocol at:aSelector put:aBlock |
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! ! |
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!Plug methodsFor:'queries'! |
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respondsTo:aSelector |
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(simulatedProtocol includesKey:aSelector) ifTrue:[^ true]. |
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^ super respondsTo:aSelector |
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! ! |
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!Plug class methodsFor:'documentation'! |
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version |
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^ '$Header: /cvs/stx/stx/libview2/Plug.st,v 1.7 1995-12-07 21:25:39 cg Exp $' |
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! ! |