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import declaration does not work [message #1699568]

Thu, 25 June 2015 08:07

Jingang Zhou

Messages: 57
Registered: December 2010

Member

Hi,

My grammar is like:

Model:
   imports += ImportDeclaration*
   entities += Entitiy*;
ImportDeclaration:
   "import" importedNamespace=[Entity|QualifiedName];
Entity:
   "entity" name=ID '{'
         subs+=Entity*
         friends+=Friend*
    '}';
Friend:
   "friend" friend=[Entity|QualifiedName];

which allows me to create files below:

//a.entity
import O
entity A {
    entity B
    friend O.P.Q
}

//b.entity
entity O {
   entity P {
      entity Q {
      }
    }
}

The question is: no matter I declare the "import O" in a.entity, the reference to Q in entity A must be with its full qualified name, is that true?

Thanks advance.
Robin

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Re: import declaration does not work [message #1699572 is a reply to message #1699568]

Thu, 25 June 2015 08:21

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

your imports

- are no wildcard imports
- will not be picked up by org.eclipse.xtext.scoping.impl.ImportedNamespaceAwareLocalScopeProvider.internalGetImportedNamespaceResolvers(EObject, boolean)
- nor by org.eclipse.xtext.scoping.impl.ImportedNamespaceAwareLocalScopeProvider.getLocalElementsScope(IScope, EObject, EReference)

=> you should customize internalGetImportedNamespaceResolvers and add a wildcard import there

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: import declaration does not work [message #1699703 is a reply to message #1699572]

Fri, 26 June 2015 03:21

Jingang Zhou

Messages: 57
Registered: December 2010

Member

Hi Christian,

Why entity A can reference entities O, P, Q without an import declaration (i.e., import O)? How can I restrict it?

Thanks.

Jingang Zhou

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