"{ Package: 'jv:smallsense' }"

"{ NameSpace: SmallSense }"

Object subclass:#ParseNodeVisitor

	instanceVariableNames:'class'

	classVariableNames:''

	poolDictionaries:''

	category:'SmallSense-Core'

!

!ParseNodeVisitor class methodsFor:'documentation'!

documentation

"

    An abstract parse tree visitor. Copied from libcomp

    as ParseNodeVisitor is autoloaded and we need smallsense

    to be fully compiled.

    [author:]

        Jan Vrany <jan.vrany@fit.cvut.cz>

    [instance variables:]

    [class variables:]

    [see also:]

"

! !

!ParseNodeVisitor class methodsFor:'instance creation'!

new

    "return an initialized instance"

    ^ self basicNew initialize.

! !

!ParseNodeVisitor class methodsFor:'processing'!

process: tree in: class

    ^self new process: tree in: class

    "Created: / 26-11-2011 / 13:48:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ParseNodeVisitor methodsFor:'initialization'!

initialize

    "Invoked when a new instance is created."

    "/ please change as required (and remove this comment)

    "/ super initialize.   -- commented since inherited method does nothing

! !

!ParseNodeVisitor methodsFor:'processing'!

process: tree in: cls

    class := cls.

    self visit: tree

    "Created: / 26-11-2011 / 13:48:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ParseNodeVisitor methodsFor:'visiting'!

visit:anObject 

    | stmt |

    ^anObject isStatementNode ifTrue:[

        stmt := anObject.

        [ stmt isNil ] whileFalse:[

            stmt acceptVisitor:self.

            stmt := stmt nextStatement.

        ]

    ] ifFalse:[

        anObject acceptVisitor: self.

    ]

    "Modified: / 25-07-2011 / 22:33:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitAssignmentNode:anObject

    self visit: anObject variable.

    self visit: anObject expression.

    "Modified: / 26-11-2011 / 13:20:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitBinaryNode:anObject 

    ^self visitMessageNode: anObject

    "Modified: / 25-07-2011 / 22:30:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitBlockNode:anObject 

    anObject statements ifNotNil:[

        self visit: anObject statements

    ].

    "Modified: / 25-07-2011 / 22:45:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitCascadeNode:anObject 

    self visitMessageNode: anObject.

    "Modified: / 25-07-2011 / 22:37:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitConstantNode:anObject

    "Modified: / 25-07-2011 / 22:41:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitECompletionConstantNode:anObject 

    "dispatched back from the visited eCompletionConstantNode-object (visitor pattern)"

    "fall back to general object-case - please change as required"

    ^ self visitObject:anObject

!

visitMessageNode:anObject 

    self visit: anObject receiver.

    anObject arguments do:[:arg|

        self visit: arg.

    ]

    "Modified: / 25-07-2011 / 22:37:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitObject:anObject 

    "dispatched back from the visited objects (visitor pattern)"

    "general fallBack - please change as required"

    self halt:'not yet implemented'

!

visitParseErrorNode:anObject

    anObject children notNil ifTrue:[

        anObject children do:[:each|self visit: each].

    ]

    "Modified: / 15-08-2013 / 12:34:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitPrimitiveNode:anObject

    "Modified: / 25-07-2011 / 22:38:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitReturnNode:anObject 

    self visitStatementNode: anObject

    "Modified: / 25-07-2011 / 22:34:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitSelfNode:anObject

    "Modified: / 25-07-2011 / 22:38:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitStatementNode:anObject 

    self visit: anObject expression.

    "Modified: / 25-07-2011 / 22:34:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitSuperNode:anObject

    "Modified: / 25-07-2011 / 22:38:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitUnaryNode:anObject 

    self visitMessageNode: anObject

    "Modified: / 25-07-2011 / 22:38:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

visitVariableNode:anObject

    "Modified: / 25-07-2011 / 22:38:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ParseNodeVisitor class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'

!

version_SVN

    ^ '$Id: SmallSenseParseNodeVisitor.st 7823 2011-11-26 16:55:59Z vranyj1 $'

! !