SmallSense__SmalltalkParseNodeFinder.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 26 Sep 2013 13:26:46 +0100
changeset 107 abe4dc4fe5ca
parent 104 3b05b2d777dd
child 157 c71d2e62ece2
child 174 3e08d765d86f
permissions -rw-r--r--
Cleanup - got rid of mess in CompletionResultSet, introduced CompletionResult... ...a simple SortedCollection with completion context.
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658f47bc231e Code moved to package jv:smallsense
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"{ Package: 'jv:smallsense' }"
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2257d7223898 All classes moved to namespace SmallSense.
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"{ NameSpace: SmallSense }"
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SmalltalkParseNodeVisitor subclass:#SmalltalkParseNodeFinder
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	instanceVariableNames:'position match previous'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'SmallSense-Smalltalk'
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!
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!SmalltalkParseNodeFinder methodsFor:'finding'!
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findNodeIn: source tree: tree line: line column: col
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    | sourceS |
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    sourceS := source readStream.
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    line - 1 timesRepeat:[
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        (sourceS nextLine) isNil ifTrue:[
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            "No such line"                                
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            ^nil
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        ].        
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    ].
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    ^self findNodeIn: source tree: tree position: sourceS position + col
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    "Created: / 26-11-2011 / 15:33:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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findNodeIn: source tree: tree position: pos
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    position := pos - 1.
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    self visit: tree.
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    ^CompletionContext node: match ? previous position: pos.
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    "Created: / 26-11-2011 / 15:37:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 24-09-2013 / 22:29:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!SmalltalkParseNodeFinder methodsFor:'visiting'!
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visit:anObject 
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    anObject isNil ifTrue:[^self].
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    (anObject endPosition notNil and:[position > anObject endPosition]) ifTrue:[
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        previous := anObject.
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        anObject acceptVisitor: self.
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        ^self.
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    ].
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    (anObject startPosition notNil 
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        and:[anObject endPosition notNil 
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        and:[position between: anObject startPosition and: anObject endPosition]]) ifTrue:[
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        match := anObject.
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    ].
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    anObject acceptVisitor: self.
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    "Created: / 26-11-2011 / 15:40:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 19-09-2013 / 11:15:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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visitStatementNode:anObject 
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    self visit: anObject expression.
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    self visit: anObject nextStatement.
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    "Modified: / 25-07-2011 / 22:34:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Created: / 26-11-2011 / 15:40:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!SmalltalkParseNodeFinder class methodsFor:'documentation'!
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version_HG
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    ^ '$Changeset: <not expanded> $'
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!
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version_SVN
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    ^ '$Id: SmallSenseFinder.st 7823 2011-11-26 16:55:59Z vranyj1 $'
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! !
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