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Distinguish imported namespaces by file type [message #763272]

Fri, 09 December 2011 13:31

Torsten Schiefer

Messages: 26
Registered: December 2011

Junior Member

Hello,

My XText Editor should handle two types of files.
The first one (*.os) imports all known namespaces with "importedNamespace". And it also includes the other files (*.osi) via "importURI". That's no Problem thank's to XText.
But the osi-Files don't have importedNamespaces and importURI, because they use the namespaces of their importing os-file.
My idea is to import all namespaces of the project by default, so I don't get linking errors in these files. More isn't necessary.

I know the approach about Default Imports "Xtext cross references and scoping an overview (Part 3)"
But how can I separate this behavior for two kinds of files?

Thank You

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Re: Distinguish imported namespaces by file type [message #763780 is a reply to message #763272]

Sat, 10 December 2011 15:00

Alexander Nittka

Messages: 1193
Registered: July 2009

Senior Member

Hi,

are you aware that you can question each EObject for its eResource and each resource for its URI? The URI should contains the file extension. When adapting the scoping, normally you have the context element at hand.

Alex

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Re: Distinguish imported namespaces by file type [message #764538 is a reply to message #763780]

Mon, 12 December 2011 11:36

Torsten Schiefer

Messages: 26
Registered: December 2011

Junior Member

Hi Alex,
thank you for your reply.

Yes, I'm aware of that.
I have created my own ImportedNamespaceAwareLocalScopeProvider and have bind it in my RuntimeModule.
Of course getImplicitImports(boolean) doesn't get any context. So I overrode the calling method getResourceScope(resource, reference).
It can distinguish if a given resources URI endsWith ".osi" and adds the default namespaces.
But it doesn't get any globalScope, only

WrappingScope -> SelectableBasedScope[] -> NULLSCOPE

, so it can't refer to any global namespace.

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Re: Distinguish imported namespaces by file type [message #765044 is a reply to message #764538]

Tue, 13 December 2011 10:12

Torsten Schiefer

Messages: 26
Registered: December 2011

Junior Member

Has anyone an idea?
I don't want to iterate through my file system! Wink

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Re: Distinguish imported namespaces by file type [message #765266 is a reply to message #765044]

Tue, 13 December 2011 18:19

Alexander Nittka

Messages: 1193
Registered: July 2009

Senior Member

Hi,

is overriding getImportedNamespaceResolvers or internalGetImportedNamespaceResolvers not an option for you? They do have a context object. Only because the method is called getImplicitImports it need not be the only hook...

Alex

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Re: Distinguish imported namespaces by file type [message #765551 is a reply to message #765266]

Wed, 14 December 2011 09:39

Torsten Schiefer

Messages: 26
Registered: December 2011

Junior Member

Thank you,

that's a realy elegant solution.
But now I have a problem to get all namespaces of my project. Do I have to find them by myself or is there anywhere a List or Scope of them?

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