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Handling terminals without assigned feature, for code generation [message #1791796]

Thu, 05 July 2018 08:31

Eclipse User

In my DSL expression, I can use brackets (), like 2*( 3 + (1+2)), which I don't have a defined feature in my grammar, but I want to make use of it in my code generator to convert it, for instance, to squared brackets or so. Would there be a possibility to handle this brackets without assigning them to a feature?

Re: Handling terminals without assigned feature, for code generation [message #1792126 is a reply to message #1791796]

Thu, 12 July 2018 00:33

Eclipse User

Hi,

you can do two things:

- in the generator you can test if the binary expression has a lower precedence than the one that it is enclosed by and the generate it with parentesis.
- you can use org.eclipse.xtext.nodemodel.util.NodeModelUtils.findActualNodeFor(EObject) to find the node model and traverse it to see if there where ( )

[Updated on: Thu, 12 July 2018 00:52] by Moderator

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