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'debug' library must be required before being used

This commit is contained in:
Roberto Ierusalimschy 2007-06-22 13:59:11 -03:00
parent ffc5f78229
commit 3904a66ab0
2 changed files with 33 additions and 2 deletions
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25
linit.c
View File

@ -1,5 +1,5 @@
/*
** $Id: linit.c,v 1.13 2005/08/26 17:36:32 roberto Exp roberto $
** $Id: linit.c,v 1.14 2005/12/29 15:32:11 roberto Exp roberto $
** Initialization of libraries for lua.c
** See Copyright Notice in lua.h
*/
@ -14,6 +14,9 @@
#include "lauxlib.h"
/*
** these libs are preloaded in Lua and are readily available to any program
*/
static const luaL_Reg lualibs[] = {
{"", luaopen_base},
{LUA_LOADLIBNAME, luaopen_package},
@ -22,6 +25,14 @@ static const luaL_Reg lualibs[] = {
{LUA_OSLIBNAME, luaopen_os},
{LUA_STRLIBNAME, luaopen_string},
{LUA_MATHLIBNAME, luaopen_math},
{NULL, NULL}
};
/*
** these libs must be required before used
*/
static const luaL_Reg luareqlibs[] = {
{LUA_DBLIBNAME, luaopen_debug},
{NULL, NULL}
};
@ -34,5 +45,17 @@ LUALIB_API void luaL_openlibs (lua_State *L) {
lua_pushstring(L, lib->name);
lua_call(L, 1, 0);
}
lib = luareqlibs;
luaL_findtable(L, LUA_GLOBALSINDEX, "package.preload", 0);
for (; lib->func; lib++) {
lua_pushcfunction(L, lib->func);
lua_setfield(L, -2, lib->name);
}
lua_pop(L, 1); /* remove package.preload table */
#ifdef LUA_COMPAT_DEBUGLIB
lua_getglobal(L, "require");
lua_pushliteral(L, LUA_DBLIBNAME);
lua_call(L, 1, 0); /* call 'require"debug"' */
#endif
}

10
luaconf.h
View File

@ -1,5 +1,5 @@
/*
** $Id: luaconf.h,v 1.88 2007/05/03 20:49:29 roberto Exp roberto $
** $Id: luaconf.h,v 1.89 2007/06/21 13:48:04 roberto Exp roberto $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@ -334,6 +334,14 @@
*/
#define LUA_COMPAT_GFIND
/*
@@ LUA_COMPAT_DEBUGLIB controls compatibility with preloading
@* the debug library.
** CHANGE it to undefined as soon as you add 'require"debug"' everywhere
** you need the debug library.
*/
#define LUA_COMPAT_DEBUGLIB