"{ Package: 'jv:smallsense' }"

"{ NameSpace: SmallSense }"

SmalltalkParseNodeVisitor subclass:#SmalltalkParseNodeFinder
	instanceVariableNames:'position match previous'
	classVariableNames:''
	poolDictionaries:''
	category:'SmallSense-Smalltalk'
!


!SmalltalkParseNodeFinder methodsFor:'finding'!

findNodeIn: source tree: tree comments: comments line: line column: col

    | sourceS |
    sourceS := source readStream.
    line - 1 timesRepeat:[
        (sourceS nextLine) isNil ifTrue:[
            "No such line"                                
            ^nil
        ].        
    ].
    ^self findNodeIn: source tree: tree comments: comments position: sourceS position + col

    "Created: / 29-01-2014 / 10:20:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

findNodeIn: source tree: tree comments: comments position: pos
    | i s |

    position := pos - 1.
    i := 1.
    [ i < comments size and:[ (s :=comments at:i) notNil ] ] whileTrue:[ 
        (pos >= s and:[ pos <= (s + (comments at: i + 1) - 1)]) ifTrue:[ 
            ^ nil -> pos.
        ].
        i := i + 2.
    ].

    self visit: tree.
    ^(match ? previous) ->  pos.

    "Created: / 29-01-2014 / 10:20:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!SmalltalkParseNodeFinder methodsFor:'visiting'!

visit:anObject 

    anObject isNil ifTrue:[^self].

    (anObject endPosition notNil and:[position > anObject endPosition]) ifTrue:[
        previous := anObject.
        anObject acceptVisitor: self.
        ^self.
    ].

    (anObject startPosition notNil 
        and:[anObject endPosition notNil 
        and:[position between: anObject startPosition and: anObject endPosition]]) ifTrue:[
        match := anObject.
    ].
    anObject acceptVisitor: self.

    "Created: / 26-11-2011 / 15:40:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 19-09-2013 / 11:15:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

visitStatementNode:anObject 

    self visit: anObject expression.
    self visit: anObject nextStatement.

    "Modified: / 25-07-2011 / 22:34:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Created: / 26-11-2011 / 15:40:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!SmalltalkParseNodeFinder class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'
!

version_SVN
    ^ '$Id: SmallSense__SmalltalkParseNodeFinder.st,v 1.2 2014/02/12 14:49:29 sr Exp $'
! !