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Re: [m2t-dev] [backend] About Functions
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Hi Laurent,
I understand your wish, and I will implement it in the near future.
BTW, the reason the expression classes are final is to keep the way open
to serializing them, e.g. as an ecore model.
Regards
- Arno
PS: I am personally not a big fan of IRC - email works better for me.
Laurent Goubet schrieb:
Hi all,
I was looking at the backend and how expressions and operations were
handled and was wondering if some functionalities were accessible.
I am currently trying to instantiate all of the backend expressions and
stumbled upon a use case I can't see a way to solve nicely : let's say
the input language is ambiguous on function calls and allows with the
same sintax to call either a function, or a declared field of the
receiver object (I'm calling "receiver" the object on which the
function is called, your "first parameter"), how can I convert this to a
backend expression (see xpand example below)?
I tried an InvocationOnWhateverExpression, to no avail. And since
InvocationOnWhateverExpression is declared final, I cannot subclass it
to alter the way it behaves when a function of the given name cannot be
retrieved before it simply throws an ExecutionException.
An example of what I am trying to convert for the backend could look
like (in xpand, "name" refers to the name of the NamedElement, not to a
random function) :
DEFINE function FOR uml.NamedElement
«name»
Thanks in advance.
Laurent Goubet
Obeo
PS : As a side note, do you ever visit an IRC chan? I'm idling on
#eclipse and #eclipse-modeling, these discussion might be easier on a chat.
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Arno Haase
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53227 Bonn
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