[antlr-interest] Is this Recognizer optimization valid?

Ric Klaren klaren at cs.utwente.nl
Tue Oct 2 07:43:11 PDT 2001


On Tue, Oct 02, 2001 at 04:40:34PM +0200, Sander Mägi wrote:
> null would give null pointer exception. The ASTpair's root and child
> variables are still read for their content like returnAst = currentAst.root.

Ack you're right. But in the codegen these could be guarded by an
(guessing != 0) check.

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