private function inferTypesForParameter(Parameter $param, AbstractFunction $function, Clazz $clazz = null)
{
if (($type = $param->getPhpType()) && !$type->isUnknownType() && !$type->isNullType() && !$type->isFalse() && !$type->isAllType()) {
return;
}
$allowsNull = $type && $type->isNullType();
if (null !== ($node = $param->getAstNode())) {
$type = $this->parser->getTypeFromParamAnnotation($node, $param->getName());
// Check whether we can use the type of a overridden method.
// We only do this if we find a parent method that has been defined
// on an interface (I), or if we find an abstract method (II).
if (null === $type && $function instanceof Method && null !== $clazz) {
foreach ($this->findOverriddenMethodsForDocInheritance($function->getName(), $clazz) as $parentMethod) {
if (null !== ($docType = $parentMethod->getParamDocType($param->getIndex()))) {
$type = $this->parser->getType($docType);
break;
}
}
}
}
if (null === $type) {
$type = $this->registry->getNativeType('unknown');
} else {
if ($allowsNull) {
$type = $this->registry->createNullableType($type);
}
}
$param->setPhpType($type);
if ($node) {
$node->setAttribute('type', $type);
}
}
private function inferTypeForParameter(AbstractFunction $function, \Scrutinizer\PhpAnalyzer\Model\Parameter $param)
{
$index = $param->getIndex();
$types = array();
foreach ($function->getInCallSites() as $site) {
$args = $site->getArgs();
if (!isset($args[$index])) {
continue;
}
$argType = $args[$index]->getPhpType();
if ($argType->isUnknownType() || $argType->isNoType()) {
continue;
}
$types[] = $argType;
}
if (null !== ($astNode = $param->getAstNode()) && null !== $astNode->default) {
$defaultType = $astNode->default->getAttribute('type');
// The default type might be null for example if a constant is assigned
// as a default value, and we could not determine the value of that constant.
if (null !== $defaultType) {
$types[] = $defaultType;
}
}
return $this->refineTypeForAnnotation($this->registry->createUnionType($types));
}