[antlr-interest] reset method on a tree parser

[Johannes Luber]

Michael Bedward schrieb:
> OK, a with a bit more delving I found the problem was caused by the
> CommonTreeNodeStream stream being emptied after the first run of the
> tree walker, so calling reset didn't achieve much.  This differs from
> ANTLR 3.1.1 behaviour but doesn't seem to be in the release notes for
> 3.1.2 or 3.1.3 (someone please let me know if I'm missing the
> obvious).
> 
> Give the tree walker a BufferedTreeNodeStream stream instead of
> CommonTreeNodeStream seems to fix the problem.  Is this now the
> correct practice where a tree walker is to be invoked repeatedly ?

The Java target renamed the original CommonTokenStream to
BufferedTokenStream. This change seems to affect more people than
anticipated. It should have been documented more thouroughly.

Johannes
> 
> cheers
> Michael
> 
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