gen: No end states means nothing to do. (todo: cherry pick)

fastly · Oct 10, 2024 · 796c6ab · 796c6ab
1 parent 8b53634
commit 796c6ab
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/libfsm/gen.c b/src/libfsm/gen.c
@@ -147,6 +147,10 @@ fsm_generate_matches(struct fsm *fsm, size_t max_length,
 		return 0;
 	}
 
+	if (!fsm_has(fsm, fsm_isend)) {
+		return 1;	/* no end state -> nothing to do */
+	}
+
 	INIT_TIMERS();
 	TIME(&pre);
 	int res = gen_init_outer(fsm, max_length, cb, opaque, false, 0);