Presuming that "latest beta" is antlr-3.4rc2-complete.jar, i get:
java -jar /Users/Local/antlr-3.4rc2-complete.jar Empty.g javac -cp /Users/Local/antlr-3.4rc2-complete.jar EmptyParser.java EmptyParser.java:167: exception org.antlr.runtime.RecognitionException is never thrown in body of corresponding try statement catch (RecognitionException re) { ^ 1 error On 2011 Jul 1, at 15:12, Terence Parr wrote: > i fixed this in latest beta for 3.4...can you try that? > Ter > On Jul 1, 2011, at 3:10 PM, Trevor John Thompson wrote: > >> I have a grammar in which i wish to create an imaginary AST node, and then >> have an action treat that node. The most straightforward expression i have >> devised is: >> grammar Empty; >> options {output=AST;} >> tokens {Imaginary;} >> @members {void treat(Object t){}} >> >> parse: empty EOF! {treat($empty.tree);}; >> empty: ->^(Imaginary); >> >> However, the generated EmptyParser.java fails to compile because empty() >> catches RecognitionException, which is never thrown. >> >> I am working around this by: >> empty: ->^(Imaginary)|Imaginary; >> which works because the imaginary token can never be produced by the lexer. >> >> Is there some other way i should be going about this? >> -- >> Trevor John Thompson (425) 246-4023 >> net: ti...@me.com >> Quidquid Latine scriptum sit, altum videtur. >> >> >> List: http://www.antlr.org/mailman/listinfo/antlr-interest >> Unsubscribe: >> http://www.antlr.org/mailman/options/antlr-interest/your-email-address > List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.