/**
* @param SchemaId $schemaId
* @param string $curieWithMajorRev
*
* @return SchemaDescriptor|null
*
* @throws \InvalidArgumentException
* @throws MissingSchema
*/
private function getMixin(SchemaId $schemaId, $curieWithMajorRev)
{
if ($curieWithMajorRev == $schemaId->getCurieWithMajorRev()) {
throw new \InvalidArgumentException(sprintf('Cannot add yourself "%s" as to mixins.', $schemaId->toString()));
}
if (!($schema = SchemaStore::getSchemaById($curieWithMajorRev, true))) {
throw new MissingSchema($curieWithMajorRev);
}
return $schema;
}
/**
* @return string
*/
public function toString()
{
return $this->id->toString();
}