Hi,
I just ran into something a little odd. I'm using @init actions in some
parser rules to stack some information and @after to pop it again. In
the generated Java code, the @after action gets wrapped in an "if (
state.backtracking==0 ) {...}", so that it only gets executed when other
actions are being executed, not during lookahead. This is what I
expected. But I noticed that the @init actions are executed
unconditionally, including during lookahead. I didn't expect this. The
result was a lot of junk on the stack when it went into a dfa. The fix
was easy enough, just checking state.backtracking myself. But I was
wondering if this is an Antlr bug or if it's supposed to work this way.
Ron
--
Ron Hunter-Duvar | Software Developer V | 403-272-6580
Oracle Service Engineering
Gulf Canada Square 401 - 9th Avenue S.W., Calgary, AB, Canada T2P 3C5
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