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Check if a feature matches one among more terminals [message #988498]

Fri, 30 November 2012 09:28

Marco Naddeo

Messages: 62
Registered: November 2012

Member

in a declarative validator for a type of my own language, how can I check if a feature of this grammar element matches one among more terminals?

Suppose that the rule defining this type is:

ANonTerminal:
  myFeature=TERMINAL1 anotherFeature=AnotherNonTerminal |
  myFeature=TERMINAL2 anotherFeature=AnotherNonTerminal |
  myFeature=TERMINAL3 anotherFeature=AnotherNonTerminal
;

and I want to write something like this:

public class AbstractMyLanguageJavaValidator extends AbstractDomainmodelJavaValidator {

  ...

  @Check
  public void myOwnCheck(ANonTerminal elem) {
    if (elem.getMyFeature == TERMINAL2) {
      warning(...);
    }
  }

}

Could you help me please? Thanks in advance! Smile

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Re: Check if a feature matches one among more terminals [message #988645 is a reply to message #988498]

Fri, 30 November 2012 20:32

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Marco,

please try to use NodeModelUtils.findNodeForFeature, ask the node for
the grammar element and check that against the grammar access of your
language.

Best regards,
Sebastian
--
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Am 30.11.12 14:35, schrieb Marco Naddeo:
> Hi :)
>
> in a declarative validator for a type of my own language, how can I
> check if a feature of this grammar element matches one among more
> terminals?
>
> Suppose that the rule defining this type is:
>
> ANonTerminal:
> myFeature=TERMINAL1 anotherFeature=AnotherNonTerminal |
> myFeature=TERMINAL2 anotherFeature=AnotherNonTerminal |
> myFeature=TERMINAL3 anotherFeature=AnotherNonTerminal
> ;
>
> and I want to write something like this:
>
>
> public class AbstractMyLanguageJavaValidator extends
> AbstractDomainmodelJavaValidator {
>
> ...
>
> @Check
> public void myOwnCheck(ANonTerminal elem) {
> if (elem.getMyFeature == TERMINAL2) {
> warning(...);
> }
> }
>
> }
>
> Could you help me please? Thanks in advance! :)

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