[m2t-dev] [backend] About Functions

[Laurent Goubet <laurent.goubet@xxxxxxx>]

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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