"

stx:goodies/smallsense - A productivity plugin for Smalltalk/X IDE

Copyright (C) 2013-2015 Jan Vrany

Copyright (C) 2014 Claus Gittinger

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License. 

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

"

"{ Package: 'stx:goodies/smallsense' }"

"{ NameSpace: SmallSense }"

SmalltalkParseNodeVisitor subclass:#SmalltalkParseNodeFinder

	instanceVariableNames:'position match previous'

	classVariableNames:''

	poolDictionaries:''

	category:'SmallSense-Smalltalk'

!

!SmalltalkParseNodeFinder class methodsFor:'documentation'!

copyright

"

stx:goodies/smallsense - A productivity plugin for Smalltalk/X IDE

Copyright (C) 2013-2015 Jan Vrany

Copyright (C) 2014 Claus Gittinger

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License. 

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

"

! !

!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 e |

    position := pos - 1.

    i := 1.

    [

        i < comments size and:[ (s := comments at:i) notNil ]

    ] whileTrue:[

        e := "s + "(comments at:i + 1)" - 1".

        (pos between:s and:e) ifTrue:[

            ^ nil -> pos.

        ].

        i := i + 2.

    ].

    (s notNil and:[ source size == e ]) ifTrue:[ 

        ^ nil -> pos.     

    ].

    self visit:tree.

    ^ (match ? previous) -> pos.

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

    "Modified: / 17-06-2014 / 16:04:19 / 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

    ^ '$Id$'

! !