pub trait OptionExt<T> {
// Required methods
fn unwrap_or_auto<T2>(self, default: T2) -> T2
where T2: From<T>;
fn map_auto<T2>(self) -> Option<T2>
where T2: From<T>;
fn ok_or_auto<O, E>(self, err: E) -> Result<O, E>
where O: From<T>;
}
Expand description
An extension trait for Option
s.
Required Methods§
Sourcefn unwrap_or_auto<T2>(self, default: T2) -> T2where
T2: From<T>,
fn unwrap_or_auto<T2>(self, default: T2) -> T2where
T2: From<T>,
Unwraps the option, or returns a default value (converted to the option’s type).
Sourcefn ok_or_auto<O, E>(self, err: E) -> Result<O, E>where
O: From<T>,
fn ok_or_auto<O, E>(self, err: E) -> Result<O, E>where
O: From<T>,
Unwraps the option, or returns an error.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.