Struct controlled_option::ControlledOption

#[repr(transparent)]
pub struct ControlledOption<T> where
    T: Niche,  { /* fields omitted */ }

An Option type where you have control over the in-memory representation of the None and Some variants. See the module-level documentation for more information.

Implementations

impl<T> ControlledOption<T> where
    T: Niche, 

pub fn none() -> ControlledOption<T>

Creates a new None instance for this option.

pub fn some(value: T) -> ControlledOption<T>

Creates a new Some instance for this option.

pub fn is_none(&self) -> bool

Returns true is the option is a None value.

pub fn is_some(&self) -> bool

Returns true is the option is a Some value.

pub fn from_option(value: Option<T>) -> ControlledOption<T>

Transforms an Option into a ControlledOption.

pub fn into_option(self) -> Option<T>

Transforms a ControlledOption into an Option. This gives you access to all of the usual assortment of useful methods that you expect from an Option.

Trait Implementations

impl<T> From<Option<T>> for ControlledOption<T> where
    T: Niche, 

fn from(value: Option<T>) -> ControlledOption<T>

Performs the conversion.

impl<T> Into<Option<T>> for ControlledOption<T> where
    T: Niche, 

fn into(self) -> Option<T>

Performs the conversion.