[antlr-interest] Treeparser inheritance?
Jos Fries
ga-fries at veenendaalnet.nl
Mon Nov 14 11:49:24 PST 2005
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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