"

 COPYRIGHT (c) 1995 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.

"

Object subclass:#ClassOrganizer

	instanceVariableNames:'globalComment categoryArray categoryStops elementArray class'

	classVariableNames:''

	poolDictionaries:''

	category:'Kernel-Support'

!

!ClassOrganizer class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1995 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

"

    in contrast to other smalltalks, ST/X does not keep the

    method <-> category associations in the class (as organization),

    but instead keeps the category as an instance variable of methods.

    For compatibility with (fileOut-) files which include a class organization

    message, 'aClass organization' returns an instance of this class, which

    implements the category change functionality.

    Also, some PD code seems to use & define methods for ClassOrganizers 

    - having this (somewhat dummy) class around helps to fileIn that code.

    Notice, that instances of ClassOrganizer are NOT used in the current ST/X

    system; all of this is pure compatibility mimicri.

    [author:]

        Claus Gittinger

"

! !

!ClassOrganizer class methodsFor:'instance creation'!

for:aClass

    "create & return a new instance of myself, to organize aClass"

    ^ self new class:aClass

! !

!ClassOrganizer methodsFor:'accessing'!

categories

    "return a collection of my classes method-categorySymbols"

    |set|

    set := IdentitySet new.

        set add:m category

    ].

    ^ set asArray

    "

     SmallInteger organization categories 

    "

!

categoryOfElement:aSelectorSymbol

    "return the category for the method specified by aSelectorSymbol.

     Return nil, if there is no such method."

    |m|

    m := class compiledMethodAt:aSelectorSymbol.

    m isNil ifTrue:[^ nil].

    ^ m category

    "

     Number organization categoryOfElement:#foo. 

     Object organization categoryOfElement:#==   

    "

!

classComment

    "return the classes comment"

    ^ class comment

    "

     Number organization classComment  

    "

!

listAtCategoryNamed:aCategorySymbol

    "return a collection of selectors whose methods are categorized

     as aCategorySymbol"

    |list|

    list := OrderedCollection new.

    class methodDictionary keysAndValuesDo:[:sel :mthd |

        mthd category == aCategorySymbol ifTrue:[list add:sel]

    ].

    ^ list asArray

    "

     SmallInteger organization listAtCategoryNamed:#arithmetic 

    "

! !

!ClassOrganizer methodsFor:'changing'!

changeFromString:organizationString

    "take category<->selector associations from aString, and change

     the categories of those methods. 

     Only required when filing in ST-80 code, which changes the categorization

     this way."

    |a category m|

    "

     (mis(use) parser for the scanning

    "

    a := Compiler evaluate:'#(' , organizationString , ')'.

    (a isMemberOf:Array) ifFalse:[^ self error:'malformed argument'].

    a do:[:row |

        category := row at:1.

        2 to:row size do:[:idx |

            |selector|

            selector := row at:idx.

            m := class compiledMethodAt:selector.

            m isNil ifTrue:[

                Transcript showCR:'no method for ' , selector , ' in ', class name

            ] ifFalse:[

                m category:category.

            ]

        ]

    ].

    class changed:#organization

    "

     TestClass 

        organization

            changeFromString:'( ''category1'' #foo1 #foo2 foo3)

                              ( ''category2'' #bar1 #bar2)'

    "

! !

!ClassOrganizer methodsFor:'printing & storing'!

printOn:aStream

    |coll|

    coll := IdentityDictionary new.

    class methodDictionary keysAndValuesDo:[:sel :mthd |

        |cat list|

        cat := mthd category.

        list := coll at:cat ifAbsent:[].

        list isNil ifTrue:[

            coll at:cat put:(list := OrderedCollection new).

        ].

        list add:sel

    ].

    coll keysAndValuesDo:[:category :list |

        aStream nextPut:$(.

        aStream nextPutAll:category asString storeString.

        list do:[:selector |

            aStream space.

            selector storeOn:aStream

        ].

        aStream nextPut:$).

        aStream cr

    ]

    "

     Number organization printString

    "

! !

!ClassOrganizer methodsFor:'private access'!

class:aClass

    "set the class"

    class := aClass

! !

!ClassOrganizer class methodsFor:'documentation'!

version

! !