in src/CLIOptions/CLIOption.hack [41:76]
public function __construct(
private string $helpText,
string $long,
?string $short,
) {
invariant(
Str\starts_with($long, '--'),
"long argument '%s' doesn't start with '--'",
$long,
);
$this->long = Str\strip_prefix($long, '--');
invariant(
Str\length($this->long) > 0,
'long argument length should be greater than zero',
);
if ($short === null) {
return;
}
invariant(
Str\starts_with($short, '-'),
"short argument '%s' doesn't start with '-'",
$short,
);
invariant(
!Str\starts_with($short, '--'),
"short argument '%s' shouldn't start with '--'",
$short,
);
$this->short = Str\strip_prefix($short, '-');
invariant(
Str\length((string)$this->short) === 1,
"short argument '%s' length should be equal to 1",
$short,
);
}