Functions with vararg tables don't need hidden args.

Vararg functions with vararg tables don't use the arguments hidden in
the stack; therfore, it doesn't need to build/keep them.

1 files changed, 9 insertions, 1 deletions

diff --git a/lobject.h b/lobject.h
index 070f12a4..156c942f 100644
--- a/lobject.h
+++ b/lobject.h
@@ -583,10 +583,18 @@ typedef struct AbsLineInfo {
 /*
 ** Flags in Prototypes
 */
-#define PF_ISVARARG     1  /* function is vararg */
+#define PF_VAHID        1  /* function has hidden vararg arguments */
 #define PF_VATAB        2  /* function has vararg table */
 #define PF_FIXED        4  /* prototype has parts in fixed memory */
 
+/* a vararg function either has hidden args. or a vararg table */
+#define isvararg(p)     ((p)->flag & (PF_VAHID | PF_VATAB))
+
+/*
+** mark that a function needs a vararg table. (The flag PF_VAHID will
+** be cleared later.)
+*/
+#define needvatab(p)    ((p)->flag |= PF_VATAB)
 
 /*
 ** Function Prototypes