Trait OptionInspectNone 

pub trait OptionInspectNone<F>
where
    F: FnOnce(),
{
    // Required method
    fn inspect_none(self, f: F) -> Self;
}

Extension trait for adding Option::inspect_none

Required Methods

fn inspect_none(self, f: F) -> Self

Call f if the Option this is called on is a None

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

impl<F, T> OptionInspectNone<F> for Option<T>

where F: FnOnce(),

fn inspect_none(self, f: F) -> Self

Implementors