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Validation (warning) when object is not used [message #1804343]

Fri, 22 March 2019 13:35

Eclipse User

Hi,

I would like to give warning for the variable (object) that was declared but never used in code. Any example for this?

Re: Validation (warning) when object is not used [message #1804416 is a reply to message #1804343]

Mon, 25 March 2019 15:32

Eclipse User

do you want to do this locally or globally.
if locally: simply traverse the file for references
if globally: this will be hard. you have to do this in the index. and do it as expensive validation which is explicitely triggered

Re: Validation (warning) when object is not used [message #1804417 is a reply to message #1804416]

Mon, 25 March 2019 16:05

Eclipse User

Locally will do for now. Your answer in my previous topic helped me to understand how to traverse the file for references.

Thanks!

Re: Validation (warning) when object is not used [message #1804419 is a reply to message #1804417]

Mon, 25 March 2019 16:08

Eclipse User

well i would be doing basically the same.
traverse the tree. looks where references are.
maybe use org.eclipse.xtext.EcoreUtil2.findCrossReferences(EObject, Set<? extends EObject>, ElementReferenceAcceptor)

Re: Validation (warning) when object is not used [message #1804420 is a reply to message #1804419]

Mon, 25 March 2019 16:18

Eclipse User

Yes. I understood that I need to traverse but didn't know how.

Like I said, I am just a beginner :)

Re: Validation (warning) when object is not used [message #1804422 is a reply to message #1804420]

Mon, 25 March 2019 16:30

Eclipse User

the esiest is to traverse your model along the structure

ask model for its models
have a look if there are student, course, enroll.
have a looks at the references within these

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