Function findlocal

Source/Misc/lua/src/lua.c:4620–4632

static const char *findlocal (lua_State *L, CallInfo *ci, int n) {
const char *name;
Proto *fp = getluaproto(ci);
if (fp && (name = luaF_getlocalname(fp, n, currentpc(L, ci))) != NULL)
return name;  /* is a local variable in a Lua function */
else {
StkId limit = (ci == L->ci) ? L->top : (ci+1)->func;
if (limit - ci->base >= n && n > 0)  /* is 'n' inside 'ci' stack? */
return "(*temporary)";
else
return NULL;
}
}


LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n) {