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Re: Grammar question
> public void caseAAWord(AAWord node)
Oops... This should be "inXXX()":
public void inAAWord(AAWord node)
instead, so that the code could deal nicely with recursive productions!
> {
> if(a)
> throw new RuntimeException("more than one A");
> // or better, you declare your own runtime-exception type.
> a = true;
> }
>
> // same for B and C
> }
>
> now, in your "main", after parsing, you do something like:
>
> ast.apply(new Weeder);
>
> Hope this helps.
>
> Etienne
--
Etienne M. Gagnon http://www.info.uqam.ca/~egagnon/
SableVM: http://www.sablevm.org/
SableCC: http://www.sablecc.org/