Trait OptionalColor 

pub trait OptionalColor: Seal {
    type Color: WriteColor;

    // Required method
    fn get(self) -> Option<Self::Color>;

    // Provided method
    fn color_kind(self) -> ColorKind { ... }
}

An optional color type. This is used to abstract over WriteColor and Option<W> where W: WriteColor

Required Associated Types

type Color: WriteColor

The color type

Required Methods

fn get(self) -> Option<Self::Color>

Get the color value

Provided Methods

fn color_kind(self) -> ColorKind

Get the color kind, this is used to check if formatting this color is supported on the current terminal when the supports-color feature is enabled

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<C: OptionalColor> OptionalColor for Option<C>

type Color = <C as OptionalColor>::Color

fn get(self) -> Option<Self::Color>

Implementors

impl OptionalColor for NoColor

type Color = Infallible

impl<C: WriteColor> OptionalColor for C

type Color = C