[antlr-interest] Treeparser inheritance?

[Jos Fries]

Hi Terrence,

Could you point me to an example in which a tree parser in a subgrammar 
inherits from the tree parser in the supergrammer? I searched in vain for 
that use of inheritance in the reference manual...

Regards,

Jos


>
> 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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