Trait ChangeMarker 

pub trait ChangeMarker {
    const IS_ADDED: usize;
    const IS_REMOVED: usize;
    const IS_REPLACED: usize;
    const IS_DEPRECATED: usize;

    // Required method
    fn describe() -> String;
}

Sealed helper trait implemented by each change marker. Used internally by ApiChangelog counting logic.

Required Associated Constants

const IS_ADDED: usize

1 if this is an Added, 0 otherwise.

const IS_REMOVED: usize

1 if this is a Removed, 0 otherwise.

const IS_REPLACED: usize

1 if this is a Replaced, 0 otherwise.

const IS_DEPRECATED: usize

1 if this is a Deprecated, 0 otherwise.

Required Methods

fn describe() -> String

Human-readable description of this change.

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.

Implementors

impl<E> ChangeMarker for Added<E>

const IS_ADDED: usize = 1

const IS_REMOVED: usize = 0

const IS_REPLACED: usize = 0

const IS_DEPRECATED: usize = 0

impl<E> ChangeMarker for Deprecated<E>

const IS_ADDED: usize = 0

const IS_REMOVED: usize = 0

const IS_REPLACED: usize = 0

const IS_DEPRECATED: usize = 1

impl<E> ChangeMarker for Removed<E>

const IS_ADDED: usize = 0

const IS_REMOVED: usize = 1

const IS_REPLACED: usize = 0

const IS_DEPRECATED: usize = 0

impl<Old, New> ChangeMarker for Replaced<Old, New>

const IS_ADDED: usize = 0

const IS_REMOVED: usize = 0

const IS_REPLACED: usize = 1

const IS_DEPRECATED: usize = 0