AspectVisitor.st
author |
Jan Vrany <jan.vrany@labware.com> |
|
Tue, 01 Jun 2021 20:19:13 +0100 |
branch | jv |
changeset 25424 |
51bd8a6b196f |
parent 17911 |
a99f15c5efa5
|
permissions |
-rw-r--r-- |
Cherry-picked `Context`
cherry-picked Context.st from a6b6dda4caff:
* 4aaf30c174e9: #DOCUMENTATION by cg, Claus Gittinger <cg@exept.de>
* c67311afcc6c: #OTHER by cg, Claus Gittinger <cg@exept.de>
* 883f79e7b2a6: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* 716f3fbb09e9: Don't mark contexts with `CATCHMARK`, Jan Vrany <jan.vrany@fit.cvut.cz>
* cff24fa817b0: #REFACTORING by stefan, Stefan Vogel <sv@exept.de>
* 521f0d837330: #UI_ENHANCEMENT by cg, Claus Gittinger <cg@exept.de>
* bf1118f0fcca: #UI_ENHANCEMENT by cg, Claus Gittinger <cg@exept.de>
* e587cdd22868: #BUGFIX by cg, Claus Gittinger <cg@exept.de>
* fe9f9487a3ed: #DOCUMENTATION by cg, Claus Gittinger <cg@exept.de>
* d5b781899274: #BUGFIX by cg, Claus Gittinger <cg@exept.de>
* 8258751a7465: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* 40173e082cbc: Copyright updates, Jan Vrany <jan.vrany@fit.cvut.cz>
* 6db5c28207d5: #UI_ENHANCEMENT by cg, Claus Gittinger <cg@exept.de>
* 871ea64fd5dc: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* 4b544a108e4e: #DOCUMENTATION by cg, Claus Gittinger <cg@exept.de>
* 9a8d8399e566: #FEATURE by cgexept.de, Claus Gittinger <cg@exept.de>
* 170b00be0103: #BUGFIX by stefan, Stefan Vogel <sv@exept.de>
* a6c73965eae8: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* ce2a0e462ff0: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* 46a260a9ca92: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* 46cab49167fb: #UI_ENHANCEMENT by exept, Claus Gittinger <cg@exept.de>
* 7d52dfd3997d: #DOCUMENTATION by exept, Claus Gittinger <cg@exept.de>
* c52eeea62763: Fix `Context >> argAndVarNames` in cases when debug info is not available, Jan Vrany <jan.vrany@labware.com>
* b5d6963fe4a9: Backed out changeset c52eeea62763, Jan Vrany <jan.vrany@labware.com>
* 6fd3896f8703: #FEATURE by exept, Claus Gittinger <cg@exept.de>
* b530ee616256: #REFACTORING by cg, Claus Gittinger <cg@exept.de>
* ef9b481d7498: #FEATURE by cg, Claus Gittinger <cg@exept.de>
* ea663b72bd51: #UI_ENHANCEMENT by cg, Claus Gittinger <cg@exept.de>
* 6179572a733c: #FEATURE by exept, Claus Gittinger <cg@exept.de>
* 84155b1b6622: #DOCUMENTATION by exept, Claus Gittinger <cg@exept.de>
* 37d06602d856: *** empty log message ***, Claus Gittinger <cg@exept.de>
* f927b9022fea: *** empty log message ***, Claus Gittinger <cg@exept.de>
* 427d3be62d97: #UI_ENHANCEMENT by exept, Claus Gittinger <cg@exept.de>
"
COPYRIGHT (c) 2002 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
"{ Package: 'stx:libbasic' }"
Visitor subclass:#AspectVisitor
instanceVariableNames:'aspect'
classVariableNames:''
poolDictionaries:''
category:'System-Visiting'
!
!AspectVisitor class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 2002 by eXept Software AG
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
documentation
"
This is a Visitor that visits only some aspects of an object.
[author:]
Stefan Vogel (stefan@zwerg)
[instance variables:]
aspect <Symbol|Object> something defining the aspect to be visited
[class variables:]
[see also:]
"
! !
!AspectVisitor methodsFor:'accessing'!
aspect
"return the value of the instance variable 'aspect' (automatically generated)"
^ aspect
!
aspect:something
"set the value of the instance variable 'aspect' (automatically generated)"
aspect := something.
! !
!AspectVisitor methodsFor:'helpers'!
aspectElementDescriptorFor:anObject
"return association that should be visited for all child objects of anObject.
Return a collection of associations. The association key is the name of the object,
where the association value is the child object"
^ anObject elementDescriptorFor:aspect.
"
XMLStandardCoder new aspect:#elementDescriptorForInstanceVariables;
encodingOf:('blaKey' -> 'blaValue')
XMLStandardCoder new aspect:#elementDescriptorForInstanceVariables;
encodingOf:('blaKey' -> nil)
XMLStandardCoder new aspect:#elementDescriptorForNonNilInstanceVariables;
encodingOf:('blaKey' -> nil)
XMLStandardCoder new aspect:#blaFaselQuall;
encodingOf:('blaKey' -> nil)
"
!
visitChildrenOf:anObject
"visit all child objects of anObject.
If aspect is defined, perform aspect to fetch the child objects.
Otherwise encode all the instance variables of anObject.
Subclasses may send this message"
|childObjectDescriptors|
aspect isNil ifTrue:[
"shortcut -- basic mechanism: visit instance variables by name"
super visitChildrenOf:anObject.
^ self.
].
childObjectDescriptors := self aspectElementDescriptorFor:anObject.
childObjectDescriptors do:[:association|
association notNil ifTrue:[
association value acceptVisitor:self with:association key.
self nextObject.
].
].
"
XMLStandardCoder new aspect:#elementDescriptorForInstanceVariables;
encodingOf:('blaKey' -> 'blaValue')
XMLStandardCoder new aspect:#elementDescriptorForInstanceVariables;
encodingOf:('blaKey' -> nil)
XMLStandardCoder new aspect:#elementDescriptorForNonNilInstanceVariables;
encodingOf:('blaKey' -> nil)
XMLStandardCoder new aspect:#blaFaselQuall;
encodingOf:('blaKey' -> nil)
"
! !
!AspectVisitor class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libbasic/AspectVisitor.st,v 1.1 2004/06/11 17:55:26 stefan Exp $'
!
version_SVN
^ '$Id: AspectVisitor.st 10761 2012-01-19 11:46:00Z vranyj1 $'
! !