mirror of
https://github.com/lua/lua
synced 2024-11-22 04:41:23 +03:00
a08d82eb13
The definitions in llimits.h are useful not only for the core. That header only defines types and '#define's, so libs and core still do not share any real code/data.
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
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** $Id: linit.c $
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** Initialization of libraries for lua.c and other clients
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** See Copyright Notice in lua.h
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*/
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#define linit_c
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#define LUA_LIB
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#include "lprefix.h"
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#include <stddef.h>
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#include "lua.h"
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#include "lualib.h"
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#include "lauxlib.h"
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#include "llimits.h"
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/*
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** Standard Libraries. (Must be listed in the same ORDER of their
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** respective constants LUA_<libname>K.)
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*/
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static const luaL_Reg stdlibs[] = {
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{LUA_GNAME, luaopen_base},
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{LUA_LOADLIBNAME, luaopen_package},
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{LUA_COLIBNAME, luaopen_coroutine},
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{LUA_DBLIBNAME, luaopen_debug},
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{LUA_IOLIBNAME, luaopen_io},
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{LUA_MATHLIBNAME, luaopen_math},
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{LUA_OSLIBNAME, luaopen_os},
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{LUA_STRLIBNAME, luaopen_string},
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{LUA_TABLIBNAME, luaopen_table},
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{LUA_UTF8LIBNAME, luaopen_utf8},
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{NULL, NULL}
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};
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/*
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** require and preload selected standard libraries
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*/
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LUALIB_API void luaL_openselectedlibs (lua_State *L, int load, int preload) {
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int mask;
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const luaL_Reg *lib;
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luaL_getsubtable(L, LUA_REGISTRYINDEX, LUA_PRELOAD_TABLE);
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for (lib = stdlibs, mask = 1; lib->name != NULL; lib++, mask <<= 1) {
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if (load & mask) { /* selected? */
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luaL_requiref(L, lib->name, lib->func, 1); /* require library */
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lua_pop(L, 1); /* remove result from the stack */
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}
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else if (preload & mask) { /* selected? */
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lua_pushcfunction(L, lib->func);
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lua_setfield(L, -2, lib->name); /* add library to PRELOAD table */
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}
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}
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lua_assert((mask >> 1) == LUA_UTF8LIBK);
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lua_pop(L, 1); /* remove PRELOAD table */
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}
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