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cross-references in grammar. [message #1782850]

Fri, 02 March 2018 13:26

Mohd Danish

Messages: 49
Registered: October 2017

Member

Hi,

Please find the attached Xtext grammar file and its corresponding runtime result also. I am not able to get the cross-references properly on content-assist(Ctrl+space). only single value is coming which is declared near the keyword root. I want Wordcount, Cost, and Deployments to show in content-assist also. Please suggest what am I doing wrong here?

Attachment: Xtext grammar.PNG
(Size: 40.25KB, Downloaded 73 times)
Attachment: Runtime result.PNG
(Size: 35.88KB, Downloaded 73 times)

[Updated on: Fri, 02 March 2018 13:28]

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Re: cross-references in grammar. [message #1782851 is a reply to message #1782850]

Fri, 02 March 2018 13:32

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

did you implement IQualifiedNamePRovider to implement simple names?

does the identifer allow a "." ?
should the name be Word or Calculation.Word?

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

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Re: cross-references in grammar. [message #1782853 is a reply to message #1782851]

Fri, 02 March 2018 14:01

Mohd Danish

Messages: 49
Registered: October 2017

Member

Hi Christian,

I have not implemented the interface IQuaifiedNameProvider. The name is simply a QualifiedIdentifier (in my case combination of Captial and small letters), therefore we do not need '.'. The requirement is that I need to form nested 'Feature_decl' in my grammar and should be able to see all the Feature_decl whenever I give a reference of Feature_decl in anywhere in the grammar. Only the top node is coming in the reference and I am not able to see the child or nested node.

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Re: cross-references in grammar. [message #1782854 is a reply to message #1782853]

Fri, 02 March 2018 14:14

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

the implement iqualifiednameprovider
e.g. (pseudo code)

public class MyQualifiedNameProvider extends DefaultDeclarativeQualifiedNameProvider {
public QualifiedName qualifiedName(FeatureDecl Decl) {
return QualifiedNAme.create(decl.getName());
}
}

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

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Re: cross-references in grammar. [message #1782857 is a reply to message #1782854]

Fri, 02 March 2018 14:40

Mohd Danish

Messages: 49
Registered: October 2017

Member

Hey Christian,

I will check and let you know. Thanks for the help as always:-).

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Re: cross-references in grammar. [message #1782900 is a reply to message #1782857]

Sun, 04 March 2018 10:30

Mohd Danish

Messages: 49
Registered: October 2017

Member

Hello,

Just one small query. How can I get the name of the EObject? I have org.xtext.abs.impl.Feature_declImpl@74a37c91 (name: Calculations) and I want to have "Calculations" in a variable.

Thanks in advance.

[Updated on: Sun, 04 March 2018 10:31]

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Re: cross-references in grammar. [message #1782901 is a reply to message #1782900]

Sun, 04 March 2018 10:44

Mohd Danish

Messages: 49
Registered: October 2017

Member

Hello,

Thank you but I got the answer. featureObj.eGet(featureObj.eClass.getEStructuralFeature("name"))

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Re: cross-references in grammar. [message #1782903 is a reply to message #1782901]

Sun, 04 March 2018 11:11

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

simply getName() ?????

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

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Re: cross-references in grammar. [message #1782904 is a reply to message #1782903]

Sun, 04 March 2018 11:15

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

In Java, you should be able to do "featureObj.getName()"

However featureObj.eGet(featureObj.eClass.getEStructuralFeature("name")) suggests that you are using Xtend so "featureObj.name" should also work.

Regards

Ed Willink

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