protected function renderAssertion(Assertion $assert)
{
$kind = $assert->getKind();
if ($assert->value instanceof Operand) {
return $kind . '(' . $this->renderOperand($assert->value) . ')';
}
$combinator = $assert->mode === Assertion::MODE_UNION ? "|" : '&';
$results = [];
foreach ($assert->value as $child) {
$results[] = $this->renderAssertion($child);
}
return $kind . '(' . implode($combinator, $results) . ')';
}
