Message.st
author claus
Fri, 16 Jul 1993 11:39:45 +0200
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child 3 24d81bf47225
permissions -rw-r--r--
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"
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 COPYRIGHT (c) 1988-92 by Claus Gittinger
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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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Object subclass:#Message
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       instanceVariableNames:'selector args'
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       classVariableNames:''
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       poolDictionaries:''
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       category:'Kernel-Methods'
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!
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Message comment:'
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COPYRIGHT (c) 1988-93 by Claus Gittinger
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              All Rights Reserved
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these are only created, when a message fails (i.e. is not understood) -
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the selector and arguments are put into an instance of Message, which is then
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passed to doesNotUnderstand:aMessage as argument.
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This allows for re-evaluation of the failed send (after some cleanup).
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As an example of its use, see the implementation of the Autoload-class.
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%W% %E%
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'!
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!Message class methodsFor:'instance creation'!
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selector:aSymbol
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    "return a new message object for a send without arguments"
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    ^ self basicNew selector:aSymbol
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                   arguments:nil
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!
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selector:aSymbol with:anArg
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    "return a new message object for a send with one argument"
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    ^ self basicNew selector:aSymbol
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                   arguments:(Array with:anArg)
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!
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selector:aSymbol with:arg1 with:arg2
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    "return a new message object for a send with two arguments"
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    ^ self basicNew selector:aSymbol
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                   arguments:(Array with:arg1 with:arg2)
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!
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selector:aSymbol withAll:argArray
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    "return a new message object for a send with many arguments"
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    ^ self basicNew selector:aSymbol
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                   arguments:argArray
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! !
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!Message methodsFor:'private accessing'!
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selector:aSymbol arguments:argArray
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    "set selector and arguments of the receiver"
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    selector := aSymbol.
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    args := argArray
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! !
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!Message methodsFor:'accessing'!
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selector
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    "return the selector of the message"
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    ^ selector
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!
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arguments
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    "return the arguments of the message"
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    ^ args
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! !
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!Message methodsFor:'printing'!
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printString
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    "return a string for printing the receiver"
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    ^ selector printString
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! !