[antlr-interest] java.lang.NullPointerException

[Darien Hager]

On 3/14/08, Richard Clark <rdclark at gmail.com> wrote:
>
> UP and DOWN are pre-defined token types for use with Abstract Syntax
> Trees.
>
>
>   ...Richard
>

This seems like a ripe place for throwing a "that token is reserved" error.
(Ditto for EOF.)

There may be some other reserved names depending on the runtime you use. For
example, the Java runtime writes tokens as public static final properties,
so tokens can't be anything that conflicts with a reserved java keyword.
(Fortunately, the fact that they have to start with an uppercase letter
tends to help here.)

-- 
Darien Hager
Developer
Etelos, Inc.
darien at etelos.com

http://www.etelos.com
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