[antlr-interest] Compiler error, CSharp2 target: empty if condition
Johannes Luber
JALuber at gmx.de
Mon Jan 12 06:20:59 PST 2009
> This is probably a known CSharp2 target compile issue, but googling the
> error message only turned up others with the same problem, no
> resolution/status.
>
> Questions: Will it be fixed? best work-arounds?
>
>
> The compile error is: Invalid expression term ')'
>
> Anytime I use a token in single quotes in an AST rewrite, I get the above.
> For example,
>
> someRule : 'KEYWORD' 'TOKEN' -> ^(KEYWORD TOKEN);
>
> which produces an empty condition in a C# if statement:
>
> if ( )
>
>
> If I remove the single quotes, the error is resolved:
>
> someRule : KEYWORD TOKEN -> ^(KEYWORD TOKEN);
>
>
> the newly gen'd code being:
>
> if ( stream_KEYWORD.HasNext() )
>
> Regards,
> Ben
Could you please provide a sample grammar which showcases the problem? I'm not sure how to do that from the snippets above alone.
Johannes
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