			pub trait Validatable {
			fn from_id(id: usize) -> Self;
			fn from_string(s: String) -> Self;
			fn get_string(&self) -> Option<&str>;
			}

			#[derive(Clone)]
			pub enum Args {
			Id(usize),
			Script(String),
			}

			#[derive(Clone)]
			pub enum Item {
			Id(usize),
			Name(String),
			}

			impl Validatable for Args {
			fn from_id(id: usize) -> Self { Args::Id(id) }
			fn from_string(s: String) -> Self { Args::Script(s) }

			fn get_string(&self) -> Option<&str> {
			match self {
			Args::Id(_) => None,
			Args::Script(s) => Some(s),
			}
			}
			}

			impl Validatable for Item {
			fn from_id(id: usize) -> Self { Item::Id(id) }
			fn from_string(s: String) -> Self { Item::Name(s) }

			fn get_string(&self) -> Option<&str> {
			match self {
			Item::Id(_) => None,
			Item::Name(s) => Some(s),
			}
			}
			}

			pub fn validate<T: Validatable>(s: &str) -> Result<T, String> {
			if let Ok(id) = s.parse::<usize>() {
			Ok(T::from_id(id))
			} else {
			Ok(T::from_string(s.to_owned()))
			}
			}

Owner Packages

pmc/src/cli/args.rs
87835a3f5300master