Akim Demaille f68a49ed49 -Wempty-rule: diagnose empty rules without %empty ...

* src/complain.h, src/complain.c (warning_empty_rule, Wempty_rule):
New warning category.
(warnings_args, warnings_types): Adjust.
* src/reader.c (grammar_rule_check): Check the empty rules are
flagged by %empty.
* tests/actions.at (Implicitly empty rule): New.
* tests/existing.at: Add expected warnings.

2013-02-18 10:01:27 +01:00

114 KiB

Raw Blame History

View Raw