Trait ClosureMode 

pub trait ClosureMode {
    type Target<'a, A: 'a, B: 'a>: ?Sized + 'a;
    type SendTarget<'a, A: 'a, B: 'a>: ?Sized + 'a;
}

Trait that maps a closure mode marker (Val or Ref) to the corresponding dyn Fn trait object type.

Used by CloneFn to parameterize the Deref target of wrapped closures. Val produces dyn Fn(A) -> B (by-value), Ref produces dyn Fn(&A) -> B (by-reference).

Required Associated Types

type Target<'a, A: 'a, B: 'a>: ?Sized + 'a

The unsized closure trait object type for this mode.

type SendTarget<'a, A: 'a, B: 'a>: ?Sized + 'a

The unsized closure trait object type for this mode with Send + Sync bounds.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl ClosureMode for Ref

type SendTarget<'a, A: 'a, B: 'a> = dyn Fn(&A) -> B + Send + Sync + 'a

type Target<'a, A: 'a, B: 'a> = dyn Fn(&A) -> B + 'a

impl ClosureMode for Val

type SendTarget<'a, A: 'a, B: 'a> = dyn Fn(A) -> B + Send + Sync + 'a

type Target<'a, A: 'a, B: 'a> = dyn Fn(A) -> B + 'a