[antlr-interest] Re: JavaTreeParser? What does it do?
micheal_jor
open.zone at virgin.net
Tue Apr 29 15:01:57 PDT 2003
> Tree parsers do the "getFirstChild()" and "getNextSibling()" for
> you as well as matching a tree pattern--the whole idea is to extend
> the ANTLR parsing concept to trees. About the only case where you
> might want to walk a tree without a tree parser is when
the "Visitor"
> pattern is appropriate.
Hi Loring,
Do you have any guidelines/advise on choosing between an architecture
using the Visitor pattern or TreeParsers?
Having made full support of hetero-ASTs a priority in the C# codegen -
to support the use of Visitors with ANTLR-built trees - we now often
need to choose between both architectures.
Cheers,
Micheal
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