Struct PosSpec 

pub struct PosSpec<'a, Ctx: ?Sized> { /* private fields */ }

Positional argument specification.

Implementations

impl<'a, Ctx: ?Sized> PosSpec<'a, Ctx>

pub fn new<F>(name: &'a str, cb: F) -> Self

where F: Fn(&OsStr, &mut Ctx) + 'a,

pub fn new_try<F, E>(name: &'a str, cb: F) -> Self

where F: Fn(&OsStr, &mut Ctx) -> Result<(), E> + 'a, E: Error + Send + Sync + 'static,

pub fn help(self, h: &'a str) -> Self

pub fn required(self) -> Self

pub fn many(self) -> Self

pub fn range(self, min: usize, max: usize) -> Self

pub fn validator<F, E>(self, v: F) -> Self

where F: Fn(&OsStr) -> Result<(), E> + 'a, E: Display,

Positional validator that returns a displayable error (converted into Error::User).

pub fn validator_try<F, E>(self, v: F) -> Self

where F: Fn(&OsStr) -> Result<(), E> + 'a, E: Error + Send + Sync + 'static,

Positional validator that returns a typed error (boxed into Error::UserAny).

pub fn get_name(&self) -> &str

pub fn get_help(&self) -> Option<&str>

pub fn get_cardinality(&self) -> PosCardinality

pub fn is_required(&self) -> bool

pub fn is_multiple(&self) -> bool

pub fn get_on_value(&self) -> &OnValueFn<'a, Ctx>

pub fn get_validator(&self) -> Option<&ValueValidatorFn<'a>>