/**
* Adds an interface.
*
* If the interface is passed as PhpInterface object,
* the interface is also added as use statement.
*
* @param PhpInterface|string $interface interface or qualified name
* @return $this
*/
public function addInterface($interface)
{
if ($interface instanceof PhpInterface) {
$name = $interface->getName();
$qname = $interface->getQualifiedName();
$namespace = $interface->getNamespace();
if ($namespace != $this->getNamespace()) {
$this->addUseStatement($qname);
}
} else {
$name = $interface;
}
$this->interfaces->add($name);
return $this;
}
