"

 COPYRIGHT (c) 1993 by Claus Gittinger

	      All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

"{ Package: 'stx:libbasic3' }"

ClassChange subclass:#ClassDefinitionChange

	instanceVariableNames:'objectType nameSpaceName superClassName classType indexedType

		otherParameters instanceVariableNames classVariableNames

		classInstanceVariableNames poolDictionaries category private

		definitionSelector owningClassName'

	classVariableNames:''

	poolDictionaries:''

	category:'System-Changes'

!

!ClassDefinitionChange class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1993 by Claus Gittinger

	      All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

!

documentation

"

    instances represent class definition-changes. 

    They are typically held in a ChangeSet.

    [author:]

        Claus Gittinger

"

! !

!ClassDefinitionChange methodsFor:'accessing'!

basicSuperClassName 

    ^ superClassName

!

category

    category isNil ifTrue:[

        self setupFromSource.

    ].

    ^ category

    "Modified: / 11-10-2006 / 14:12:01 / cg"

!

category:something

    category := something.

!

classInstanceVariableNames

    ^ classInstanceVariableNames

!

classInstanceVariableNames:something

    classInstanceVariableNames := something.

!

classVariableNames

    ^ classVariableNames

!

classVariableNames:something

    classVariableNames := something.

!

instanceVariableNames

    ^ instanceVariableNames

!

instanceVariableNames:something

    instanceVariableNames := something.

!

nameSpaceName

    objectType == #variable ifTrue:[

        ^ nil

    ].

    ^ self cutNameSpaceOf:(nameSpaceName ? super nameSpaceName)

!

nameSpaceName: aNameSpaceName classType: aClassType otherParameters:otherParametersArg

    "this instance setup message is used when reading from a VW-xml change file.

     Support for this is not yet complete."

    |indexedType imports|

    nameSpaceName := aNameSpaceName.

    classType := aClassType.

    otherParameters := Dictionary new addAll:otherParametersArg; yourself.

    superClassName := otherParameters at:#superclass: ifAbsent:nil.

    superClassName notNil ifTrue:[

        superClassName := superClassName pathString.

    ].

    indexedType := otherParameters at:#indexedType: ifAbsent:nil.

    private := otherParameters at:#private: ifAbsent:nil.

    instanceVariableNames := otherParameters at:#instanceVariableNames: ifAbsent:nil.

    classInstanceVariableNames := otherParameters at:#classInstanceVariableNames: ifAbsent:nil.

    imports := otherParameters at:#imports: ifAbsent:nil.

    category := otherParameters at:#category: ifAbsent:nil.

    "Modified: / 11-10-2006 / 14:06:47 / cg"

!

objectType

    "return the value of the instance variable 'objectType' (automatically generated)"

    ^ objectType

!

objectType:something

    "set the value of the instance variable 'objectType' (automatically generated)"

    objectType := something.

!

package:aPackageID

    package := aPackageID

!

poolDictionaries

    ^ poolDictionaries

!

poolDictionaries:something

    poolDictionaries := something.

!

source

    "return the source of the change"

    |src nsName|

    (src := source) isNil ifTrue:[

        src := self definitionString

    ].

    (nsName := self nameSpaceName) notNil ifTrue:[

        ^ '"{ NameSpace: ' , nsName , ' }"' , 

          Character cr, Character cr , 

          src

    ].

    ^ src

!

superClassName 

    |nm|

    nm := superClassName.

    nm notNil ifTrue:[

        (nm includes:$.) ifTrue:[

            ^ nm copyReplaceAll:$. withAll:'::'.

        ]

    ].

    ^ nm

!

superClassName:something

    superClassName := something.

!

superClassNameWithoutMyNamespace

    |nm|

    nm := self cutMyNameSpaceOf:superClassName.

    (nm includes:$.) ifTrue:[

        ^ nm copyReplaceAll:$. withAll:'::'.

    ].

    ^ nm

!

superClassNameWithoutNamespace

    |nm|

    nm := self cutNameSpaceOf:superClassName.

    (nm includes:$.) ifTrue:[

        ^ nm copyReplaceAll:$. withAll:'::'.

    ].

    ^ nm

! !

!ClassDefinitionChange methodsFor:'comparing'!

isForSameAs:changeB

    "return true, if the given change represents a change for the same

     thingy as the receiver (i.e. same method, same definition etc.)."

    changeB isClassDefinitionChange ifFalse:[^ false].   

    className ~= changeB className ifTrue:[^ false].

    ^ true

!

sameAs:changeB

    "return true, if the given change represents the same change as the receiver."

    (self isForSameAs:changeB) ifFalse:[^ false].

    ^ self sameSourceAs:changeB

! !

!ClassDefinitionChange methodsFor:'printing & storing'!

definitionString

    objectType == #variable ifTrue:[

        ^ String streamContents:[:stream |

            stream 

                nextPutAll:((nameSpaceName asCollectionOfSubstringsSeparatedBy:$.) asStringWith:'::');

                nextPutAll:' addClassVarName:';

                nextPutAll:className asString storeString

          ].

    ].

    ^ String streamContents:[:stream |

        stream 

            nextPutAll:self superClassNameWithoutMyNamespace;

            nextPutAll:' subclass:';

            nextPutAll:"self" className asSymbol storeString

            ;

            cr;

            spaces:4;

            nextPutAll:'instanceVariableNames: ';

            nextPutAll:(instanceVariableNames ? '') storeString;

            cr;

            spaces:4;

            nextPutAll:'classVariableNames: ';

            nextPutAll:(classVariableNames ? '') storeString;

            cr;

            spaces:4;

            nextPutAll:'poolDictionaries: ';

            nextPutAll:(poolDictionaries ? '') storeString;

            cr;

            spaces:4;

            nextPutAll:'category: ';

            nextPutAll:(category ? '') storeString

      ]

!

printOn:aStream

    aStream 

        nextPutAll:className; nextPutAll:' {definition}'

    "Modified: / 12-10-2006 / 17:48:28 / cg"

!

printWithoutClassNameOn:aStream

    aStream nextPutAll:('definition of ' , className)

! !

!ClassDefinitionChange methodsFor:'queries'!

cutMyNameSpaceOf:aString

    |dotIndex colonIndex|

    aString isNil ifTrue:[ ^ aString ].

    nameSpaceName isNil ifTrue:[ ^ aString ].

    (aString startsWith:(nameSpaceName , '.')) ifTrue:[ ^ self cutNameSpaceOf:aString ].

    (aString startsWith:(nameSpaceName , '::')) ifTrue:[ ^ self cutNameSpaceOf:aString ].

    ^ aString

!

definitionSelector

    definitionSelector isNil ifTrue:[

        self setupFromSource.

    ].

    ^ definitionSelector

    "Modified: / 11-10-2006 / 14:11:44 / cg"

!

isClassDefinitionChange

    ^ true

!

isPrivateClassDefinitionChange

    private isNil ifTrue:[

        (className includes:$:) ifFalse:[

            "/ cannot be private

            private := false

        ] ifTrue:[

            source isNil ifTrue:[^ false ].

            (source includesString:'private') ifFalse:[

                private := false.

            ] ifTrue:[

"/                (self changeClass notNil

"/                and:[self changeClass isLoaded not]) ifTrue:[

"/                    "/ cannot be private

"/                    private := false

"/                ] ifTrue:[

                    self setupFromSource.

"/                ].

            ].

        ].

    ].

    ^ private

    "Created: / 11-10-2006 / 14:19:03 / cg"

    "Modified: / 16-11-2006 / 16:34:19 / cg"

!

owningClassName

    self isPrivateClassDefinitionChange ifTrue:[

        owningClassName isNil ifTrue:[

            self setupFromSource.

        ].

    ].

    ^ owningClassName

    "Created: / 12-10-2006 / 23:07:25 / cg"

! !

!ClassDefinitionChange methodsFor:'special'!

installAsAutoloadedClassIfPublicWithFilename:aFilenameString

    "install the class defined by this change as autoloaded.

     Skip private classes.

     Enter class file name as abbreviation"

    |parseTree sel cat clsName cls catIdx pkg|

    parseTree := Parser parseExpression:self source.

    parseTree isMessage ifFalse:[

        self error:'bad change source'.

    ].

    sel := parseTree selector.

    (sel endsWith:':privateIn:') ifTrue:[^ self].

    catIdx := sel keywords indexOf:'category:'.  

    catIdx ~~ 0 ifTrue:[

        cat := (parseTree args at:catIdx) evaluate.

    ].

    clsName := self className asSymbol.

    cls := Smalltalk at:clsName.

    pkg := package ? Project current package.   

    (cls isNil 

     or:[cls isBehavior not

     or:[cls isLoaded not]]) ifTrue:[

        |autoloadedClass|

        autoloadedClass := Smalltalk 

           installAutoloadedClassNamed:clsName 

           category:cat 

           package:pkg 

           revision:nil.

        aFilenameString notNil ifTrue:[

            autoloadedClass setClassFilename:aFilenameString.

            "/ Smalltalk setFilename:aFilenameString forClass:clsName package:pkg.

        ]

    ] ifFalse:[

        cls notNil ifTrue:[

            cls isBehavior ifTrue:[

                cls package ~= pkg ifTrue:[

Transcript showCR:'oops - package change in ',clsName.

                ]

            ].

        ].

    ].

    "Modified: / 13-11-2006 / 17:18:50 / cg"

!

setupFromSource

    "extract privacy, category and selector from the source"

    |parseTree catIdx|

    source notNil ifTrue:[

        parseTree := Parser parseExpression:source.

        (parseTree notNil and:[parseTree isMessage]) ifFalse:[

            self error:'bad change source' mayProceed:true.

            ^ self

        ].

        definitionSelector := parseTree selector.

        private := (definitionSelector endsWith:':privateIn:').

        private ifTrue:[

            owningClassName := parseTree args last name.

        ].

        catIdx := definitionSelector keywords indexOf:'category:'.  

        catIdx ~~ 0 ifTrue:[

            category := (parseTree args at:catIdx) evaluate.

        ].

    ].

    "Created: / 11-10-2006 / 14:10:02 / cg"

    "Modified: / 26-10-2006 / 19:29:17 / cg"

! !

!ClassDefinitionChange class methodsFor:'documentation'!

version

! !