in src/CLIOptions/CLIOptionWithRequiredValue.hack [37:54]
public function apply(
string $as_given,
?string $value,
vec<string> $argv,
): vec<string> {
if ($value === null) {
if (C\is_empty($argv) || $argv[0] === '--') {
throw new InvalidArgumentException(
"option '%s' requires a value",
$as_given,
);
}
$value = C\firstx($argv);
$argv = Vec\drop($argv, 1);
}
$this->set($as_given, $value);
return $argv;
}