commit 96ea2e0fb462789015824823801ba34782364b68
parent 93ccdd52ef83e283f7357c7e9de3a8773b26a16d
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 21 Nov 1994 11:29:56 -0200
fallback to unary minus is 'arith' with operation code 'unm'
Diffstat:
3 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/fallback.c b/fallback.c
@@ -3,7 +3,7 @@
** TecCGraf - PUC-Rio
*/
-char *rcs_fallback="$Id: fallback.c,v 1.6 1994/11/16 17:38:08 roberto Exp roberto $";
+char *rcs_fallback="$Id: fallback.c,v 1.7 1994/11/18 19:46:21 roberto Exp roberto $";
#include <stdio.h>
@@ -33,7 +33,6 @@ struct FB luaI_fallBacks[] = {
{"arith", {LUA_T_CFUNCTION, arithFB}},
{"order", {LUA_T_CFUNCTION, orderFB}},
{"concat", {LUA_T_CFUNCTION, concatFB}},
-{"unminus", {LUA_T_CFUNCTION, arithFB}},
{"settable", {LUA_T_CFUNCTION, gettableFB}},
{"gc", {LUA_T_CFUNCTION, GDFB}}
};
diff --git a/fallback.h b/fallback.h
@@ -1,5 +1,5 @@
/*
-** $Id: fallback.h,v 1.4 1994/11/10 17:36:54 roberto Exp roberto $
+** $Id: fallback.h,v 1.5 1994/11/18 19:46:21 roberto Exp roberto $
*/
#ifndef fallback_h
@@ -18,9 +18,8 @@ extern struct FB {
#define FB_ARITH 3
#define FB_ORDER 4
#define FB_CONCAT 5
-#define FB_UNMINUS 6
-#define FB_SETTABLE 7
-#define FB_GC 8
+#define FB_SETTABLE 6
+#define FB_GC 7
void luaI_setfallback (void);
int luaI_lock (Object *object);
diff --git a/opcode.c b/opcode.c
@@ -3,7 +3,7 @@
** TecCGraf - PUC-Rio
*/
-char *rcs_opcode="$Id: opcode.c,v 3.17 1994/11/17 21:23:43 roberto Exp roberto $";
+char *rcs_opcode="$Id: opcode.c,v 3.18 1994/11/18 19:46:21 roberto Exp roberto $";
#include <setjmp.h>
#include <stdio.h>
@@ -989,7 +989,10 @@ static int lua_execute (Byte *pc, int base)
case MINUSOP:
if (tonumber(top-1))
- do_call(&luaI_fallBacks[FB_UNMINUS].function, (top-stack)-1, 1, (top-stack)-1);
+ {
+ tag(top++) = LUA_T_NIL;
+ call_arith("unm");
+ }
else
nvalue(top-1) = - nvalue(top-1);
break;