Function luaopen_package

third-party/lua-5.2.4/src/loadlib.c:690–724

LUAMOD_API int luaopen_package (lua_State *L) {
  /* create table CLIBS to keep track of loaded C libraries */
  luaL_getsubtable(L, LUA_REGISTRYINDEX, CLIBS);
  lua_createtable(L, 0, 1);  /* metatable for CLIBS */
  lua_pushcfunction(L, gctm);
  lua_setfield(L, -2, "__gc");  /* set finalizer for CLIBS table */
  lua_setmetatable(L, -2);
  /* create `package' table */
  luaL_newlib(L, pk_funcs);
  createsearcherstable(L);
#if defined(LUA_COMPAT_LOADERS)
  lua_pushvalue(L, -1);  /* make a copy of 'searchers' table */
  lua_setfield(L, -3, "loaders");  /* put it in field `loaders' */
#endif
  lua_setfield(L, -2, "searchers");  /* put it in field 'searchers' */
  /* set field 'path' */
  setpath(L, "path", LUA_PATHVERSION, LUA_PATH, LUA_PATH_DEFAULT);
  /* set field 'cpath' */
  setpath(L, "cpath", LUA_CPATHVERSION, LUA_CPATH, LUA_CPATH_DEFAULT);
  /* store config information */
  lua_pushliteral(L, LUA_DIRSEP "\n" LUA_PATH_SEP "\n" LUA_PATH_MARK "\n"
                     LUA_EXEC_DIR "\n" LUA_IGMARK "\n");
  lua_setfield(L, -2, "config");
  /* set field `loaded' */
  luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED");
  lua_setfield(L, -2, "loaded");
  /* set field `preload' */
  luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
  lua_setfield(L, -2, "preload");
  lua_pushglobaltable(L);
  lua_pushvalue(L, -2);  /* set 'package' as upvalue for next lib */
  luaL_setfuncs(L, ll_funcs, 1);  /* open lib into global table */
  lua_pop(L, 1);  /* pop global table */
  return 1;  /* return 'package' table */
}