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Couldn't resolve reference to EnumElem 'bottle' [message #1775299]

Fri, 27 October 2017 11:11

Pedro Sánchez

Messages: 4
Registered: October 2017

Junior Member

Dear friend,
I obtain the error while using the DSL "Couldn't resolve reference to EnumElem 'bottle'"

// in the DSL
enums
thing ::= bottle drop
end

The grammar fragment of interest is the following:

Enums:
name=ID '::=' (r+=EnumElem)*
;

EnumElem:
name=ID
;

Value: {Value}
INT | value=[EnumElem]
;

// and the rule where EnumElem's are not recognized:
OtherRule:
'remember' p=Value
;

It allows INT values but not enum ones.

Several days with this and no solution :(
Many thanks in advance.

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Re: Couldn't resolve reference to EnumElem 'bottle' [message #1775313 is a reply to message #1775299]

Fri, 27 October 2017 13:34

Christian Dietrich

Messages: 14455
Registered: July 2009

Senior Member

value=[EnumElem]

Is short for

value=[EnumElem|ID]

Which means an Id is parsed which does not allow dots

But the default reference names are

Grandparent.parent.child

So you may use

value=[EnumElem|FQN]

With

FQN: ID ("." ID)* ;

Or you need to adapt IQualifiedBameProvider

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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