Sam Harwell schrieb:
> I have run into this issue before and it'll simplify some of my rules
> now that it's fixed. I believe the other thing that didn't carry into
> synpreds was parameterized rules:
>
> a[bool b]
> : {b}? c
> | d
> ;
>
> x : (a[true])? => a[true]
> | y
> ;
That's actually due to hoisting a bad design - in certain contexts b
won't be available. ANTLR should generate an error here.
Johannes
>
> Sam
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> On Behalf Of Terence Parr
> Sent: Monday, September 08, 2008 7:29 PM
> To: ANTLR-dev Dev
> Cc: Leon Su
> Subject: [antlr-dev] labels carried into synpreds now
>
> * Labels on tokens, rules carry into synpreds now so semantic
> predicates work.
> This didn't work since labels were stripped in the synpred and they
> weren't
> defined in the generated method.
>
> a : x=A z=a {$x.text.equals($z.text)}? A
> | y=A a A A
> ;
>
> edit //depot/code/antlr/main/CHANGES.txt#96
> edit //depot/code/antlr/main/src/org/antlr/codegen/templates/Java/
> Java.stg#138
> edit //depot/code/antlr/main/src/org/antlr/tool/GrammarAST.java#47
> Change 5256 submitted.
>
> Ter
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