Function luaE_warnerror

lib/lua/src/lstate.c:433–444

** Generate a warning from an error message */

** Generate a warning from an error message
*/
void luaE_warnerror (lua_State *L, const char *where) {
  TValue *errobj = s2v(L->top.p - 1);  /* error object */
  const char *msg = (ttisstring(errobj))
                  ? getstr(tsvalue(errobj))
                  : "error object is not a string";
  /* produce warning "error in %s (%s)" (where, msg) */
  luaE_warning(L, "error in ", 1);
  luaE_warning(L, where, 1);
  luaE_warning(L, " (", 1);
  luaE_warning(L, msg, 1);
  luaE_warning(L, ")", 0);
}