[antlr-interest] Treeparser inheritance?

Terence Parr parrt at cs.usfca.edu
Mon Nov 14 10:30:17 PST 2005


On Nov 14, 2005, at 8:37 AM, Jos Fries wrote:

> Hi,
>
> Last weekend I experimented with grammar inheritance. I  
> successfully extended a lexer and a parser. Extending my tree  
> parser however failed. My statement "class BTreeWalker extends  
> ATreeWalker;" is accepted by ANTLR but compiled to the Java code  
> "public class BTreeWalker extends antlr.TreeParser".
>
> Excuse the newbie character of the question, but does the concept  
> of grammar inheritance also apply to tree parsers? The  
> documentation doesn't state anything about this. I'm using antlr  
> 2.7.4.

Hi Jos, it should work as you describe.  Are you sure you're doing it  
just like in the examples?

Terence



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