futures::never

Type Alias Never

Source
pub type Never = Infallible;
Expand description

A type with no possible values.

This is used to indicate values which can never be created, such as the error type of infallible futures.

This type is a stable equivalent to the ! type from std.

This is currently an alias for std::convert::Infallible, but in the future it may be an alias for !. See “Future compatibility” section of std::convert::Infallible for more.

Aliased Type§

enum Never {}

Variants§