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better treatment for errors inside _ERRORMETHOD

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This commit is contained in:
Roberto Ierusalimschy 2000-10-09 13:46:43 -02:00
parent 79909a92e1
commit 46b543ebef
4 changed files with 12 additions and 9 deletions
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5
lbaselib.c
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@ -1,5 +1,5 @@
/*
** $Id: lbaselib.c,v 1.9 2000/10/05 12:14:08 roberto Exp roberto $
** $Id: lbaselib.c,v 1.10 2000/10/06 19:13:29 roberto Exp roberto $
** Basic library
** See Copyright Notice in lua.h
*/
@ -229,7 +229,8 @@ static int luaB_next (lua_State *L) {
static int passresults (lua_State *L, int status, int oldtop) {
static const char *const errornames[] =
{"ok", "run-time error", "file error", "syntax error", "memory error"};
{"ok", "run-time error", "file error", "syntax error",
"memory error", "error in error handling"};
if (status == 0) {
int nresults = lua_gettop(L) - oldtop;
if (nresults > 0)

7
ldo.c
View File

@ -1,5 +1,5 @@
/*
** $Id: ldo.c,v 1.104 2000/10/06 12:45:25 roberto Exp roberto $
** $Id: ldo.c,v 1.105 2000/10/09 13:47:32 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@ -43,9 +43,8 @@ void luaD_init (lua_State *L, int stacksize) {
void luaD_checkstack (lua_State *L, int n) {
if (L->stack_last - L->top <= n) { /* stack overflow? */
if (L->stack_last-L->stack > (L->stacksize-1)) {
/* overflow while handling overflow: do what?? */
L->top -= EXTRA_STACK;
lua_error(L, "BAD STACK OVERFLOW! DATA CORRUPTED!");
/* overflow while handling overflow */
luaD_breakrun(L, LUA_ERRERR); /* break run without error message */
}
else {
L->stack_last += EXTRA_STACK; /* to be used by error message */

6
lua.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lua.c,v 1.51 2000/09/11 19:42:57 roberto Exp roberto $
** $Id: lua.c,v 1.52 2000/09/25 16:15:52 roberto Exp roberto $
** Lua stand-alone interpreter
** See Copyright Notice in lua.h
*/
@ -91,10 +91,12 @@ static int ldo (int (*f)(lua_State *l, const char *), const char *name) {
res = f(L, name); /* dostring | dofile */
lua_settop(L, top); /* remove eventual results */
signal(SIGINT, h); /* restore old action */
/* Lua gives no message in such cases, so lua.c provides one */
if (res == LUA_ERRMEM) {
/* Lua gives no message in such case, so lua.c provides one */
fprintf(stderr, "lua: memory allocation error\n");
}
else if (res == LUA_ERRERR)
fprintf(stderr, "lua: error in error message\n");
return res;
}

3
lua.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lua.h,v 1.72 2000/10/02 20:10:55 roberto Exp roberto $
** $Id: lua.h,v 1.73 2000/10/05 12:14:08 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
@ -41,6 +41,7 @@
#define LUA_ERRFILE 2
#define LUA_ERRSYNTAX 3
#define LUA_ERRMEM 4
#define LUA_ERRERR 5
typedef struct lua_State lua_State;