25 This class exists solely for the error message when accessing undefined

    25 !UndefinedVariable class methodsFor:'documentation'!

    26 variables - instead of returning nil,  the compiler returns an instance

    27 of this class,  which will not understand ANY message.

    28 The error message will then be "UndefinedVariable ..." instead of

    29 "UndefineObject ..."

    31 $Header: /cvs/stx/stx/libcomp/UndefinedVariable.st,v 1.2 1993-10-13 00:26:22 claus Exp $

    27 copyright

    32 '!

    28 "

    29  COPYRIGHT (c) 1993 by Claus Gittinger

    30               All Rights Reserved

    31 

    32  This software is furnished under a license and may be used

    33  only in accordance with the terms of that license and with the

    34  inclusion of the above copyright notice.   This software may not

    35  be provided or otherwise made available to, or used by, any

    36  other person.  No title to or ownership of the software is

    37  hereby transferred.

    38 "

    39 !

    40 

    41 version

    42 "

    43 $Header: /cvs/stx/stx/libcomp/UndefinedVariable.st,v 1.3 1994-06-02 20:26:25 claus Exp $

    44 "

    45 !

    46 

    47 documentation

    48 "

    49     node for parse-trees, representing undefined variables

    50 

    51     This class exists solely for the error message when accessing undefined

    52     variables - instead of returning nil,  the compiler returns an instance

    53     of this class,  which will not understand ANY message.

    54     The error message will then be 'UndefinedVariable ...' 

    55     instead of 'UndefineObject ...', which is somewhat more informative.

    56 "

    57 ! !