no more `seterrormethod' function

lapi.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 1.76 2000/03/27 20:10:21 roberto Exp roberto $
+** $Id: lapi.c,v 1.77 2000/03/29 20:19:20 roberto Exp roberto $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -102,15 +102,6 @@ lua_Object lua_settagmethod (lua_State *L, int tag, const char *event) {
 }
 
 
-lua_Object lua_seterrormethod (lua_State *L) {
-  lua_Object temp;
-  luaA_checkCargs(L, 1);
-  temp = lua_getglobal(L, "_ERRORMESSAGE");
-  lua_setglobal(L, "_ERRORMESSAGE");
-  return temp;
-}
-
-
 lua_Object lua_gettable (lua_State *L) {
   luaA_checkCargs(L, 2);
   luaV_gettable(L, L->top--);

lbuiltin.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lbuiltin.c,v 1.104 2000/04/13 18:08:18 roberto Exp roberto $
+** $Id: lbuiltin.c,v 1.105 2000/04/14 17:44:20 roberto Exp roberto $
 ** Built-in functions
 ** See Copyright Notice in lua.h
 */
@@ -256,11 +256,6 @@ void luaB_gettagmethod (lua_State *L) {
                                         luaL_check_string(L, 2)));
 }
 
-void luaB_seterrormethod (lua_State *L) {
-  lua_Object nf = luaL_functionarg(L, 1);
-  lua_pushobject(L, nf);
-  lua_pushobject(L, lua_seterrormethod(L));
-}
 
 void luaB_collectgarbage (lua_State *L) {
   lua_pushnumber(L, lua_collectgarbage(L, luaL_opt_int(L, 1, 0)));
@@ -318,8 +313,10 @@ void luaB_call (lua_State *L) {
   int narg = (int)getnarg(L, arg);
   int i, status;
   if (err != LUA_NOOBJECT) {  /* set new error method */
+    lua_Object oldem = lua_getglobal(L, "_ERRORMESSAGE");
     lua_pushobject(L, err);
-    err = lua_seterrormethod(L);
+    lua_setglobal(L, "_ERRORMESSAGE");
+    err = oldem;
   }
   /* push arg[1...n] */
   luaD_checkstack(L, narg);
@@ -328,7 +325,7 @@ void luaB_call (lua_State *L) {
   status = lua_callfunction(L, f);
   if (err != LUA_NOOBJECT) {  /* restore old error method */
     lua_pushobject(L, err);
-    lua_seterrormethod(L);
+    lua_setglobal(L, "_ERRORMESSAGE");
   }
   if (status != 0) {  /* error in call? */
     if (strchr(options, 'x')) {
@@ -632,7 +629,6 @@ static const struct luaL_reg builtin_funcs[] = {
   {"rawgettable", luaB_rawgettable},
   {"rawsetglobal", luaB_rawsetglobal},
   {"rawsettable", luaB_rawsettable},
-  {"seterrormethod", luaB_seterrormethod},
   {"setglobal", luaB_setglobal},
   {"settag", luaB_settag},
   {"settagmethod", luaB_settagmethod},

lbuiltin.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lbuiltin.h,v 1.5 1999/12/28 19:23:41 roberto Exp roberto $
+** $Id: lbuiltin.h,v 1.6 2000/03/03 14:58:26 roberto Exp roberto $
 ** Built-in functions
 ** See Copyright Notice in lua.h
 */
@@ -32,7 +32,6 @@ void luaB_rawgetglobal (lua_State *L);
 void luaB_rawgettable (lua_State *L);
 void luaB_rawsetglobal (lua_State *L);
 void luaB_rawsettable (lua_State *L);
-void luaB_seterrormethod (lua_State *L);
 void luaB_setglobal (lua_State *L);
 void luaB_settag (lua_State *L);
 void luaB_settagmethod (lua_State *L);

lua.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lua.h,v 1.46 2000/04/14 17:46:37 roberto Exp roberto $
+** $Id: lua.h,v 1.47 2000/04/14 17:48:20 roberto Exp roberto $
 ** Lua - An Extensible Extension Language
 ** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
 ** e-mail: lua@tecgraf.puc-rio.br
@@ -11,7 +11,7 @@
 #ifndef lua_h
 #define lua_h
 
-#define LUA_VERSION	"Lua 4.0"
+#define LUA_VERSION	"Lua 4.0 (alpha)"
 #define LUA_COPYRIGHT	"Copyright (C) 1994-2000 TeCGraf, PUC-Rio"
 #define LUA_AUTHORS 	"W. Celes, R. Ierusalimschy & L. H. de Figueiredo"
 
@@ -112,8 +112,6 @@ lua_Object     lua_createtable (lua_State *L);
 long	       lua_collectgarbage (lua_State *L, long limit);
 
 
-lua_Object     lua_seterrormethod (lua_State *L);  /* In: new method */
-
 
 /* 
 ** ===============================================================
@@ -207,9 +205,8 @@ extern lua_State *lua_state;
 #define lua_unref(ref)		(lua_unref)(lua_state, ref)
 #define lua_createtable()	(lua_createtable)(lua_state)
 #define lua_collectgarbage(limit)	(lua_collectgarbage)(lua_state, limit)
-#define lua_seterrormethod()	(lua_seterrormethod)(lua_state)
 /*
-** the following typecast is a little dirty, but we cannot find another
+** the following typecast is a little dirty, but we know of no other
 ** way to keep compatibility with old definition of `lua_CFunction'
 */
 #define lua_pushcclosure(fn,n) \