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--TEST--
Yielding from the already running Generator should fail (bug #69458)
--FILE--
<?php
function gen() {
yield from yield;
}
($gen = gen())->send($gen);
?>
--EXPECTF--
Fatal error: Uncaught exception 'EngineException' with message 'Impossible to yield from the Generator being currently run' in %s:%d
Stack trace:
#0 [internal function]: gen()
#1 %s(%d): Generator->send(Object(Generator))
#2 {main}
thrown in %s on line %d
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