#semver #safety #dyn #safe #object

dyn_safe

Take control of the Semver hazard of the dyn safety of your traits!

4 releases

0.0.4 Jul 17, 2022
0.0.3 Jul 17, 2022
0.0.2 Nov 20, 2020
0.0.1 Nov 20, 2020

#18 in #dyn

Zlib OR MIT OR Apache-2.0

8KB

::dyn_safe

Repository Latest version Documentation MSRV unsafe forbidden License

Take control of the Semver hazard of the dyn safety of your traits!

Usage
  1. cargo add dyn_safe, or add the following to your Cargo.toml file:

    [dependencies]
    dyn_safe = "x.y.z"
    
    • where you can find the version using cargo search dyn_safe
  2. Add the following to your lib.rs file:

    #[macro_use]
    extern crate dyn_safe;
    
  3. Use #[dyn_safe(true)] or #[dyn_safe(false)] to, respectively, assert that the trait object is dyn-safe or that the trait object should not be dyn-safe.

    • #[macro_use]
      extern crate dyn_safe;
      
      #[dyn_safe(true)]
      trait Foo {
          fn whoops ();
      }
      
    • #[macro_use]
      extern crate dyn_safe;
      
      #[dyn_safe(false)]
      trait Foo {
          //
      }
      
      let _: dyn Foo; // Whoops
      

Dependencies