[antlr-interest] Generating AST other than CommonTree

[Kay Roepke]

On Aug 1, 2007, at 1:20 AM, Joel Shellman wrote:

> I saw some hint that ANTLR can generate a tree of custom objects
> instead of CommonTree by creating a custom TreeAdapter. I have done
> that, but I see that in the generated parser code, it includes
> CommonTree, so I get ClassCastExceptions. Is there some way around
> this?

You must also set the option ASTLabelType at the top of your grammar:

options {
	ASTLabelType="YourClassName";
}

otherwise ANTLR won't do the correct thing at code generation time.

HTH,
-k
-- 
Kay Röpke
http://classdump.org/