Trait parse_arg::Arg

pub trait Arg: Sized + AsRef<OsStr> {
    fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>;
}

A type that can be parsed.

Usually &OsStr or OsString. It's used to automatically pick the right method if ParseArg trait.

Required methods

fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>

Parses the argument from self using appropriate method.

In case self is OsString or can be converted to it at no cost ParseArg::parse_owned_arg() is used. Otherwise ParseArg::parse_arg() is used.

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Implementations on Foreign Types

impl Arg for OsString

fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>

impl<'a> Arg for &'a OsStr

fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>

impl<'a, U: 'a + Arg + Copy> Arg for &'a U

fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>

impl Arg for String

Using this with std::env::args() is not a good practice, but it may be useful for testing.

fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>

impl<'a> Arg for &'a str

Using this with std::env::args() is not a good practice, but it may be useful for testing.

fn parse<T: ParseArg>(self) -> Result<T, <T as ParseArg>::Error>

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Implementors

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