[antlr-interest] Predicate and problem with generated code

[fridi]

Ok, I fixed the problem, my "b" was out of scope in that class and I 
fixed it using a member.
But I still have a problem if the else-part is missing...


fridi schrieb:
> Hi,
>
> i have  a parser rule for an if-else
>
> rule
>   :
>   IF^ expression 'then'! actionSequence ('else'! actionSequence)? 'endif'!
>   ;
>
> The treewalker rule is
>
> ifElse
>   :
>   ^(
>     IF b=expression
>     (
>       {b}?=> actionSequence .
>       | . actionSequence
>     )
>    )
>   ;
>
> The problem now is that the generated code for DFA1 and there the method 
> specialStateTransition() does not know about my variable b
> Any ideas?
>
> Thanks in advance,
>  fridi
>
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