[Moose-dev] Re: About classVar in presence of metaclass /class merging

9 Oct 2008

...
  > when we
merge a class and its metaclass:
> 		a metaclass instVar will become a "class variable"
> 	But we really need a way to make the distinction between a
> sharedvariable and merged class inst var.
> 	so I would like to have isShared in attribute or SmalltalkFamix
> extension: how do I do that in
> 		Famix20?
> 		Famix30? 
 There is no solution yet. I would say isShared is a good solution. 
Ok I will implement that

...
  > 	Then if I
have the same variable name at the instance and class  
> side
> when I merge I have a conflict with name
> 	and the importer will break. 
 Why should it break? I checked and the ensure* attribute should be storing a name
(for  
method, class, namespace, package we can use object in the hashtable
but not for stff like attribte since they are not runtime objects.

ensureAttribute: name for: aClass

	^(self scopeOfClass: aClass)
			at: name
			ifAbsent:
				[self
					createAttribute: name
					for: aClass]

so I may ask for a class instance variable and get an instance  
variable and vice versa. For ClassVar this is not a problem since they  
should be uppercased.

Then this is just that if I query the uniqueInstance class instance  
var and that the class side

...
  You should not depend on names when storing the
 variables anymore. As for looking the variable or method up
 afterwards, you know at all times if you are looking on the class or
 on the instance side, so you can always ask it specifically.

 Or? 
do you see my point?

Stef

...

 Doru

   	So I
could modify the importer to have another mapping and let in
 the
 resulting model
 	two attributes with the same name but different scope
 	or I could modify the name of the mapped class inst var with
 something like CL-x (would means I was a class var
 	but I was merged). Of course this solution is uglier but easier to
 implement.

 Stef
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[Moose-dev] Re: About classVar in presence of metaclass /class merging