public function validateConfig(array $expected, array $config = NULL, $name = NULL)
{
if (func_num_args() === 1) {
return $this->config = $this->validateConfig($expected, $this->config);
}
if ($extra = array_diff_key((array) $config, $expected)) {
$name = $name ?: $this->name;
$hint = Nette\Utils\ObjectMixin::getSuggestion(array_keys($expected), key($extra));
$extra = $hint ? key($extra) : implode(", {$name}.", array_keys($extra));
throw new Nette\InvalidStateException("Unknown configuration option {$name}.{$extra}" . ($hint ? ", did you mean {$name}.{$hint}?" : '.'));
}
return Config\Helpers::merge($config, $expected);
}