[antlr-interest] DoubleLinkedTree

[Alexander Gängel]

Can Somebody give me a hint how to use DoubleLinkTrees.

I tried it this way:

I have    
ASTLabelType=MyAst; in my V3 Grammar

I created a Class MyAst extends DoubleLinkTree

I Implemented the Abstract functions from BaseTree like in CommonTree

but when I try to use the Grammar I get Exception in thread "main"
java.lang.ClassCastException: org.antlr.runtime.tree.CommonTree

Alexander