[antlr-interest] java.util.NoSuchElementException: can't look backwards more than one token in this stream

Verny Quartara webny23 at gmail.com
Thu Jun 14 01:40:21 PDT 2012


Hi everybody,
I'm getting a strange error in my tree grammar.
The AST is correctly generated by the parser.
When I try to walk the tree, I get

java.util.NoSuchElementException: can't look backwards more than one token
in this stream

Before moving into the details of the grammar, can anyone explain me under
which conditions is this exception thrown? Perhaps I can solve it by my own
with some suggestion.

Thank you

Regards

-- 
Verny Quartara


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