/**
* {@inheritdoc}
*/
public function validate(SchemaDescriptor $a, SchemaDescriptor $b)
{
foreach ($a->getMixins() as $mixin) {
if ($m = $b->getMixin($mixin->getId()->getCurieWithMajorRev())) {
if (!$m->isMixinSchema()) {
throw new ValidatorException(sprintf('The schema "%s" mixins can only include other mixins. The schema "%s" is not a mixin.', $b, $mixin->getId()->toString()));
}
}
}
}
