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Accessing parser source correspondence for AST elements in standalone setup [message #1805055]

Fri, 05 April 2019 04:37

Ben Holland

Messages: 34
Registered: April 2019

Member

Hi all,

I'm trying to build some static analysis tooling of an XText DSL and I need to access the source correspondences (token start and offset positions in the parsed source file). I can see how one would normally access this information in the formatting2 stubs via the GrammarAccess injections, but I am currently running XText in a standalone setup using a resource set so I am confused how to retrieve this information outside of the formatting2 context.

For the Greetings example how would I find the token start and end offsets of each name?

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Re: Accessing parser source correspondence for AST elements in standalone setup [message #1805079 is a reply to message #1805055]

Fri, 05 April 2019 13:09

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi you can use NodeModelUtils to gain access to the nodemodel. you can also do
org.eclipse.xtext.resource.XtextResource.getParseResult()
and org.eclipse.xtext.parser.IParseResult.getRootNode()

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

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