/**
* Adapt a value into a coroutine.
*
* @param StrandInterface $strand The currently executing strand.
* @param mixed $value The value to adapt.
*
* @return CoroutineInterface
* @throws InvalidArgumentException if now valid adaptation can be made.
*/
public function adapt(StrandInterface $strand, $value)
{
while ($value instanceof CoroutineProviderInterface) {
$value = $value->coroutine($strand);
}
if ($value instanceof CoroutineInterface) {
return $value;
} elseif ($value instanceof Generator) {
return new GeneratorCoroutine($value);
} elseif ($value instanceof PromiseInterface) {
return new PromiseCoroutine($value);
} elseif (is_array($value)) {
return Recoil::all($value);
} elseif (null === $value) {
return Recoil::cooperate();
}
throw new InvalidArgumentException('Unable to adapt ' . Repr::repr($value) . ' into a coroutine.');
}
