// Ensure that the compiler include the blanklet implementation suggestion // when inside a `impl` statement are used two local traits. // //@ edition:2021 use std::fmt; trait LocalTraitOne { } trait LocalTraitTwo { } trait GenericTrait {} impl LocalTraitTwo for LocalTraitOne {} //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object //~| HELP alternatively use a blanket implementation to implement `LocalTraitTwo` for all types that also implement `LocalTraitOne` impl fmt::Display for LocalTraitOne { //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result { todo!(); } } impl fmt::Display for LocalTraitTwo + Send { //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result { todo!(); } } impl LocalTraitOne for fmt::Display {} //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object //~| HELP alternatively use a blanket implementation to implement `LocalTraitOne` for all types that also implement `fmt::Display` impl LocalTraitOne for fmt::Display + Send {} //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object //~| HELP alternatively use a blanket implementation to implement `LocalTraitOne` for all types that also implement `fmt::Display + Send` impl GenericTrait for LocalTraitOne {} //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object //~| HELP alternatively use a blanket implementation to implement `GenericTrait` for all types that also implement `LocalTraitOne` trait GenericTraitTwo {} impl GenericTraitTwo for GenericTrait {} //~^ ERROR expected a type, found a trait //~| HELP you can add the `dyn` keyword if you want a trait object //~| HELP alternatively use a blanket implementation to implement `GenericTraitTwo` for all types that also implement `GenericTrait` fn main() {}