Trait ming::ValueExt

pub trait ValueExt: Sealed {
    fn parse<T: FromStr>(&self) -> Result<T, Error>
    where
        T::Err: Into<Box<dyn Error + Send + Sync + 'static>>;
    fn parse_with<F, T, E>(&self, func: F) -> Result<T, Error>
    where
        F: FnOnce(&str) -> Result<T, E>,
        E: Into<Box<dyn Error + Send + Sync + 'static>>;
}

An optional extension trait with methods for parsing OsStrings.

They may fail in two cases:

• The value cannot be decoded because it’s invalid unicode (Error::NonUnicodeValue)
• The value can be decoded, but parsing fails (Error::ParsingFailed)

If parsing fails the error will be wrapped in lexopt’s own Error type.

Required methods

fn parse<T: FromStr>(&self) -> Result<T, Error> where
    T::Err: Into<Box<dyn Error + Send + Sync + 'static>>, 

Decode the value and parse it using FromStr.

This will fail if the value is not valid unicode or if the subsequent parsing fails.

fn parse_with<F, T, E>(&self, func: F) -> Result<T, Error> where
    F: FnOnce(&str) -> Result<T, E>,
    E: Into<Box<dyn Error + Send + Sync + 'static>>, 

Decode the value and parse it using a custom function.

Implementations on Foreign Types

impl ValueExt for OsString

fn parse<T: FromStr>(&self) -> Result<T, Error> where
    T::Err: Into<Box<dyn Error + Send + Sync + 'static>>, 

fn parse_with<F, T, E>(&self, func: F) -> Result<T, Error> where
    F: FnOnce(&str) -> Result<T, E>,
    E: Into<Box<dyn Error + Send + Sync + 'static>>, 

Implementors