"

 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'

	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'!

category:something

    category := something.

!

nameSpaceName

    objectType == #variable ifTrue:[

        ^ nil

    ].

    ^ self cutNameSpaceOf:(nameSpaceName ? super nameSpaceName)

!

nameSpaceName: aNameSpaceName classType: aClassType otherParameters:otherParametersArg

    |indexedType private 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.

!

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

!

source

    "return the source of the change"

    |src nsName|

    source isNil ifTrue:[

        src := self definitionString

    ] ifFalse:[

        src := super source

    ].

    (nsName := self nameSpaceName) notNil ifTrue:[

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

          Character cr, Character cr , 

          src

    ].

    ^ src

!

superClassName 

    ^ self cutNameSpaceOf:superClassName

! !

!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

    ^ String streamContents:[:stream |

        objectType == #variable ifTrue:[

            stream 

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

                nextPutAll:' addClassVarName:';

                nextPutAll:className asString storeString

        ] ifFalse:[

            stream 

                nextPutAll:self superClassName;

                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

!

printWithoutClassNameOn:aStream

    aStream nextPutAll:('definition of ' , className)

! !

!ClassDefinitionChange methodsFor:'queries'!

definitionSelector

    |parseTree|

    parseTree := Parser parseExpression:self source.

    parseTree isMessage ifTrue:[

        ^ parseTree selector

    ].

    self error:'should not happen'.

!

isClassDefinitionChange

    ^ true

! !

!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 catIdx|

    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.

    ((Smalltalk includesKey:clsName) not 

     or:[(Smalltalk at:clsName) isBehavior not

     or:[(Smalltalk at:clsName) isLoaded not]]) ifTrue:[

        |pkg|

        pkg := package ? Project current package.   

        Smalltalk 

           installAutoloadedClassNamed:clsName 

           category:cat 

           package:pkg 

           revision:nil.

        aFilenameString notNil ifTrue:[

            Smalltalk setFilename:aFilenameString forClass:clsName package:pkg.

        ]

    ]

! !

!ClassDefinitionChange class methodsFor:'documentation'!

version

! !