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

"{ NameSpace: Smalltalk }"

MCClassDefinition subclass:#MCTraitDefinition

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'SCM-Monticello-Modeling'

!

!MCTraitDefinition class methodsFor:'as yet unclassified'!

name: classNameString traitComposition:  traitCompositionString category:  categoryString comment:  commentString commentStamp:   commentStamp

	^ self instanceLike:

		(self new initializeWithName: classNameString 

			traitComposition:  traitCompositionString

			category:  categoryString

			comment:  commentString  

			commentStamp:   commentStamp)

! !

!MCTraitDefinition methodsFor:'accessing'!

classTraitCompositionString

	^self traitComposition ifNil: ['{}'].

! !

!MCTraitDefinition methodsFor:'comparing'!

hash

	| hash |

	hash := String stringHash: name initialHash: 0.

	hash := String stringHash: self traitCompositionString initialHash: hash.

	hash := String stringHash: (category ifNil: ['']) initialHash: hash.

	^ hash

!

requirements

        "Assuming that traits in a composition can be identified by

        testing for the first character beeing an uppercase character

        (and thus not a special character such as {, # etc.)"

        | tokens traitNames |

        self hasTraitComposition ifFalse: [ ^Array new ].

        tokens := Scanner new scanTokens: self traitComposition.

        traitNames := tokens select: [:each | each isString and:[each first isUppercase]].

        ^traitNames asArray

! !

!MCTraitDefinition methodsFor:'converting'!

asChange

    ^TraitDefinitionChange new

        mcDefinition: self;

        baseTrait: superclassName;

        traitComposition: traitComposition;

        className: name;

        category: category;

        yourself

! !

!MCTraitDefinition methodsFor:'initializing'!

initializeWithName: classNameString 

        traitComposition:  traitCompositionString

        category:  categoryString

        comment:  commentString  

        commentStamp:   commentStampString

                name := classNameString asSymbol.

                traitComposition := traitCompositionString.

             category := categoryString.

                comment := commentString asStringWithSqueakLineEndings.

                commentStamp :=  commentStampString ifNil: [self defaultCommentStamp]

    "Modified: / 12-09-2010 / 16:06:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!MCTraitDefinition methodsFor:'installing'!

load

	| trait |

	(trait := self createClass) ifNotNil: [

		self hasComment ifTrue: [trait classComment: comment stamp: commentStamp]]

! !

!MCTraitDefinition methodsFor:'printing'!

printDefinitionOn: stream

	stream nextPutAll: 'Trait named: #', self className;

		 cr;

		 tab;

		 nextPutAll: 'uses: ';

		 nextPutAll: self traitCompositionString;

		 cr;

		 tab;

		 nextPutAll: 'category: ';

		 store: self category asString

! !

!MCTraitDefinition methodsFor:'testing'!

hasClassInstanceVariables

	^ false

! !

!MCTraitDefinition methodsFor:'visiting'!

= aDefinition

        "/self flag: #traits. "Ugly we harcoded the super superclass method.  We will have to refactor the definition hierarchy"

        ^ (self isRevisionOf: aDefinition)

                and: [self traitCompositionString = aDefinition traitCompositionString]

                and: [category = aDefinition category]

                and: [comment = aDefinition comment]

    "Modified: / 14-09-2010 / 20:48:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

accept: aVisitor

	^ aVisitor visitTraitDefinition: self

!

createClass

	^Trait

		named: name

		uses: (Compiler evaluate: self traitCompositionString)

		category: category

! !

!MCTraitDefinition class methodsFor:'documentation'!

version

    ^ '$Header: /cvs/stx/stx/goodies/monticello/MCTraitDefinition.st,v 1.6 2013-04-02 19:24:41 cg Exp $'

!

version_CVS

    ^ '$Header: /cvs/stx/stx/goodies/monticello/MCTraitDefinition.st,v 1.6 2013-04-02 19:24:41 cg Exp $'

!

version_HG

    ^ '$Changeset: <not expanded> $'

!

version_SVN

    ^ '§Id: MCTraitDefinition.st 17 2010-10-13 12:07:52Z vranyj1 §'

! !