[news.eclipse.modeling.m2m] Re: [ATL] generating ECore!EString or ECore!

[Guillaume Doux <guillaume.doux@xxxxxxxxx>]

Olivier PATRY a écrit :
> Hello,
>
> I'm trying to transform a model conform to a personal metamodel to ECore.
>
> In my metamodel, I had an enumeration PrimitiveType with literals 
> String, Integer, Boolean, Float
>
> I want to transform these personnal types into corresponding ECore types.
>
> I try with
> eType <- ECore!EString
>
> wich works well, but I didn't know how to test the "source" type to 
> choose the ECore type (ECore!EString, ECore!EInt, ...)
>
> I try with an helper or lazy rule like
>
> helper context MM!PrimitiveType def : getEType : ECore!???? =
>     if String then ECore!EString
>     else ...
> ;
>
> lazy rule getEType
> {
>     from type :MM!PrimitiveType
>     to etype: ECore!????(
>     ??? <- EString -- how to choose the right type ?
>     )
> }
>
> How can I do that, and what is the type of ECore!EString or ECore!EInt ?
>
> Thank you.
>
> (if there is a better way to make the correspondance between ECore 
> primitive types (all) and personnal PrimitiveType, I'm interested ;) )
>
> Bye.


Hello,

Have you try to do it with a guarded matching rule like :

rule primitiveTypeString2EString {
     from
	type : MM!PrimitiveType	( type.value = 'String' )
		-- I put value for the identifier of your primitive type 		-- because 
I do not know the corresponding propêrty in 				-- your metamodel
    to
	etype: ECore!EString
}

and you can do the same thing for all other primitive type.

I do not know if this is what you expect ?

Hope this helps...

Best regards.


Guillaume Doux