OptionExt

std_ext

Trait OptionExt 

Source 
pub trait OptionExt<T> {
    // Required method
    fn map_ref<U>(&self, f: impl FnOnce(&T) -> U) -> Option<U>;
}

Required Methods§

Source

fn map_ref<U>(&self, f: impl FnOnce(&T) -> U) -> Option<U>

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.

Implementations on Foreign Types§

Source§

impl<T> OptionExt<T> for Option<T>

Source§

fn map_ref<U>(&self, f: impl FnOnce(&T) -> U) -> Option<U>

Implementors§