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Xtext Beginner Scoping/Referencing Problem [message #1818732]

Wed, 25 December 2019 11:10

Selin Aydin

Messages: 1
Registered: December 2019

Junior Member

Hi everyone,

I have a language like this:

objectA{
 attribute1
}

objectB{
 objectA.attribute1
}

Grammer rules, like

refObject=[Object]'.'attRef=[Attribute]

only work inside an object. I can reference ObjectA.attribute1 only in ObjectA, but not in Object B. I'm trying to get into the ScopeProvider, but is it possible to create a reference (attribute) based on the reference before (object)? Is there some documentation of similar cases? Thanks in advance!

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Re: Xtext Beginner Scoping/Referencing Problem [message #1818825 is a reply to message #1818732]

Mon, 30 December 2019 06:33

Uli Merkel

Messages: 250
Registered: June 2013

Senior Member

Hi Selin.
In your case the reference should look like to handle the hierarchy :
attRef=[Attribute|FQN];
FQN: ID ('.' ID)*;

This should work out of the box.

Have a look into the documentation for FQN (full qualified name):

Entity: ... 'extends' extends=[Entity|Fqn]...;
Fqn: ID ('.' ID)*;

explained in https://nittka.github.io/2011/08/01/scoping1.html

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