private function restrictByCallable(PhpType $type = null, $outcome)
{
if (null === $type) {
return $outcome ? $this->typeRegistry->getNativeType('callable') : null;
}
if ($outcome) {
if ($type->isUnknownType() || $type->isAllType()) {
return $this->typeRegistry->getNativeType('callable');
}
if ($type->isUnionType()) {
$types = array();
foreach ($type->getAlternates() as $altType) {
if ($altType->canBeCalled()) {
$types[] = $altType;
}
}
return $this->typeRegistry->createUnionType($types);
}
return $type->canBeCalled() ? $type : $this->typeRegistry->getNativeType('none');
}
if ($type->isCallableType()) {
return $this->typeRegistry->getNativeType('none');
}
if ($type->isUnionType()) {
$types = array();
foreach ($type->getAlternates() as $altType) {
if ($altType->isCallableType()) {
continue;
}
$types[] = $altType;
}
return $this->typeRegistry->createUnionType($types);
}
return $type;
}
