/**
* Get the answer.
*
* @param array<tuple<bool,mixed,bool,mixed,array<CallRequest>>> &$iterations The iteration details.
* @param array<CallRequest> &$requests The call requests
* @param Exception|Error|null &$exception The exception to throw.
* @param mixed &$returnValue The return value.
* @param int|null &$returnsArgument The index of the argument to return.
* @param bool &$returnsSelf True if the self value should be returned.
* @param Invoker $invoker The invoker to use.
*
* @return callable The answer.
*/
public static function answer(array &$iterations, array &$requests, &$exception, &$returnValue, &$returnsArgument, &$returnsSelf, Invoker $invoker)
{
return function ($self, $arguments) use(&$iterations, &$requests, &$exception, &$returnValue, &$returnsArgument, &$returnsSelf, $invoker) {
foreach ($iterations as $iteration) {
foreach ($iteration->requests as $request) {
$invoker->callWith($request->callback(), $request->finalArguments($self, $arguments));
}
if ($iteration instanceof GeneratorYieldFromIteration) {
foreach ($iteration->values as $key => $value) {
if ($key instanceof InstanceHandle) {
$key = $key->get();
}
if ($value instanceof InstanceHandle) {
$value = $value->get();
}
(yield $key => $value);
}
} else {
if ($iteration->hasKey) {
(yield $iteration->key => $iteration->value);
} elseif ($iteration->hasValue) {
(yield $iteration->value);
} else {
yield;
}
}
}
foreach ($requests as $request) {
$invoker->callWith($request->callback(), $request->finalArguments($self, $arguments));
}
if ($exception) {
throw $exception;
}
if ($returnsSelf) {
return $self;
}
if (null !== $returnsArgument) {
return $arguments->get($returnsArgument);
}
return $returnValue;
};
}
