1--TEST--
2It is not possible to resume an already running generator
3--FILE--
4<?php
5
6function gen() {
7 $gen = yield;
8 $gen->next();
9}
10
11$gen = gen();
12$gen->send($gen);
13$gen->next();
14
15?>
16--EXPECTF--
17Fatal error: Cannot resume an already running generator in %s on line %d
18
