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3841
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"
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COPYRIGHT (c) 2006 by eXept Software AG
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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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2584
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"{ Package: 'stx:libcomp' }"
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"{ NameSpace: Smalltalk }"
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2584
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Object subclass:#ParseNodeVisitor
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'System-Compiler-Support'
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!
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3781
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!ParseNodeVisitor class methodsFor:'documentation'!
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3841
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copyright
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"
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COPYRIGHT (c) 2006 by eXept Software AG
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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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!
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documentation
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"
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a whitebox expandable abstract parsenode visitor.
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Subclasses should redefine those acceptXXX methods, in which they are interested.
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"
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! !
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!ParseNodeVisitor methodsFor:'visiting'!
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visit:anObject
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| stmt |
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^anObject isStatementNode
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ifTrue:[
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stmt := anObject.
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[ stmt isNil ] whileFalse:[
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stmt acceptVisitor:self.
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stmt := stmt nextStatement.
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]
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]
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ifFalse:[
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anObject acceptVisitor: self.
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]
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"Modified: / 25-07-2011 / 22:33:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitAssignmentNode:anObject
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self visit: anObject variable.
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self visit: anObject expression.
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"Modified: / 25-07-2011 / 22:30:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitBinaryNode:anObject
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^self visitMessageNode: anObject
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"Modified: / 25-07-2011 / 22:30:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitBlockNode:anObject
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anObject statements ifNotNil:[
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self visit: anObject statements
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].
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"Modified: / 25-07-2011 / 22:45:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitCascadeNode:anObject
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self visitMessageNode: anObject.
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"Modified: / 25-07-2011 / 22:37:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitConstantNode:anObject
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"Modified: / 25-07-2011 / 22:41:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitECompletionConstantNode:anObject
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"dispatched back from the visited eCompletionConstantNode-object (visitor pattern)"
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"fall back to general object-case - please change as required"
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^ self visitObject:anObject
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!
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visitMessageNode:anObject
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self visit: anObject receiver.
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anObject arguments do:[:arg|
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self visit: arg.
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]
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"Modified: / 25-07-2011 / 22:37:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitObject:anObject
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"dispatched back from the visited objects (visitor pattern)"
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"general fallBack - please change as required"
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self halt:'not yet implemented'
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!
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visitParseErrorNode:anObject
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"Modified: / 25-07-2011 / 22:38:08 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitPrimitiveNode:anObject
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"Modified: / 25-07-2011 / 22:38:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitReturnNode:anObject
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self visit: anObject expression.
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!
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3807
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visitSelfNode:anObject
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"/ to be redefined in subclasses
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!
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visitStatementNode:anObject
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3964
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|expr|
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(expr := anObject expression) notNil ifTrue:[
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self visit: expr.
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]
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2584
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!
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3807
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visitSuperNode:anObject
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"/ to be redefined in subclasses
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2584
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!
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visitUnaryNode:anObject
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3807
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^self visitMessageNode: anObject
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2584
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!
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3807
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visitVariableNode:anObject
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"/ to be redefined in subclasses
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2584
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! !
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!ParseNodeVisitor class methodsFor:'documentation'!
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version
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3781
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^ '$Header$'
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2584
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!
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version_CVS
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3781
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^ '$Header$'
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2584
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! !
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3781
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