# Module :: implements [](https://github.com/emersion/stability-badges#experimental) [](https://github.com/Wandalen/wTools/actions/workflows/module_implements_push.yml) [](https://docs.rs/implements) [](https://gitpod.io/#RUN_PATH=.,SAMPLE_FILE=module%2Fcore%2Fimplements%2Fexamples%2Fimplements_trivial.rs,RUN_POSTFIX=--example%20implements_trivial/https://github.com/Wandalen/wTools) [](https://discord.gg/m3YfbXpUUY) Macro to answer the question: does it implement a trait? This solution has a limitation: - In case entity is a function and trait is `Fn`/`FnMut`/`FnOnce` which current entity does not implement you will get compile-time error instead of `false`. ### Basic use-case ``` rust use implements::*; dbg!( implements!( 13_i32 => Copy ) ); // < implements!( 13_i32 => Copy ) : true dbg!( implements!( Box::new( 13_i32 ) => Copy ) ); // < implements!( 13_i32 => Copy ) : false ``` ### To add to your project ```sh cargo add implements ``` ### Try out from the repository ```sh git clone https://github.com/Wandalen/wTools cd wTools cargo run --example implements_trivial ```