Macro declare_new_fns 

declare_new_fns!() { /* proc-macro */ }

Declare new and new_mut functions for dyn slices of a trait.

Syntax

declare_new_fns!(
    #[attributes]
    pub name<parameters> Trait<arguments>
    where
        parameter: bounds,
);

The ptr_metadata feature must be enabled to use this macro!

Example: Display

#![feature(ptr_metadata)]
declare_new_fns!(
    display_slice std::fmt::Display
);

Other examples

There are more examples of how to use declare_new_fns in the examples directory.

Use from other crates

When using dyn_slice from crates that re-export it, you may need to add a crate attribute, for example:

declare_new_fns!(
    #[crate = other_crate::dyn_slice]
    name Trait
);