public function getUnionType() : UnionType
{
return $this->variable->getUnionType();
}
/**
* If this parameter is variadic (e.g. `DateTime ...$args`),
* then this returns the corresponding array type(s) of $args. (e.g. `DateTime[]`)
* NOTE: For variadic arguments, this is a temporary variable.
* Modifying this won't result in persistent changes.
* (TODO(Issue #376) : We will probably want to be able to modify the underlying variable,
* e.g. by creating `class UnionTypeGenericArrayView extends UnionType`.
* Otherwise, type inference of `...$args` based on the function source
* will be less effective without phpdoc types.)
*
* @override
* TODO: Should the return value be set up in the constructor instead?
*/
public function getUnionType() : UnionType
{
return $this->isVariadic() ? parent::getUnionType()->asGenericArrayTypes() : parent::getUnionType();
}
