Added backrefs

1 files changed, 1 insertions, 0 deletions

diff --git a/vm.h b/vm.h
index 9225461..db1e9f5 100644
--- a/vm.h
+++ b/vm.h
@@ -10,6 +10,7 @@
 
 #include "types.h"
 
+const char *opcode_name(enum VMOpcode o);
 match_t *match(grammar_t *g, const char *str, vm_op_t *op);
 void destroy_match(match_t **m);
 void print_pattern(vm_op_t *op);