Trait PeekOption 

pub trait PeekOption<T: Sized>: Sized {
    // Required methods
    fn peep_some<F, R>(self, run: F) -> Self
       where F: FnOnce(&T) -> R,
             R: Sized;
    fn peep_some_mut<F, R>(self, run: F) -> Self
       where F: FnOnce(&mut T) -> R,
             R: Sized;
    fn peep_none<F, R>(self, run: F) -> Self
       where F: FnOnce() -> R,
             R: Sized;

    // Provided methods
    fn peep_some_dbg<F, R>(self, run: F) -> Self
       where F: FnOnce(&T) -> R,
             R: Sized { ... }
    fn peep_some_mut_dbg<F, R>(self, run: F) -> Self
       where F: FnOnce(&mut T) -> R,
             R: Sized { ... }
    fn peep_none_dbg<F, R>(self, run: F) -> Self
       where F: FnOnce() -> R,
             R: Sized { ... }
}

Peep, but specifically for Option’s.

Required Methods

fn peep_some<F, R>(self, run: F) -> Self

where F: FnOnce(&T) -> R, R: Sized,

fn peep_some_mut<F, R>(self, run: F) -> Self

where F: FnOnce(&mut T) -> R, R: Sized,

fn peep_none<F, R>(self, run: F) -> Self

where F: FnOnce() -> R, R: Sized,

Provided Methods

fn peep_some_dbg<F, R>(self, run: F) -> Self

where F: FnOnce(&T) -> R, R: Sized,

fn peep_some_mut_dbg<F, R>(self, run: F) -> Self

where F: FnOnce(&mut T) -> R, R: Sized,

fn peep_none_dbg<F, R>(self, run: F) -> Self

where F: FnOnce() -> R, R: Sized,

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<T: Sized> PeekOption<T> for Option<T>

fn peep_some<F, R>(self, run: F) -> Self

where F: FnOnce(&T) -> R, R: Sized,

fn peep_some_mut<F, R>(self, run: F) -> Self

where F: FnOnce(&mut T) -> R, R: Sized,

fn peep_none<F, R>(self, run: F) -> Self

where F: FnOnce() -> R, R: Sized,

Implementors