//! Test the `missing_debug_implementations` lint that warns about public types without Debug. //! //! See https://github.com/rust-lang/rust/issues/20855 //@ compile-flags: --crate-type lib #![deny(missing_debug_implementations)] #![allow(unused)] use std::fmt; pub enum A {} //~ ERROR type does not implement `Debug` #[derive(Debug)] pub enum B {} pub enum C {} impl fmt::Debug for C { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { Ok(()) } } pub struct Foo; //~ ERROR type does not implement `Debug` #[derive(Debug)] pub struct Bar; pub struct Baz; impl fmt::Debug for Baz { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { Ok(()) } } // Private types should not trigger the lint struct PrivateStruct; enum PrivateEnum {} #[derive(Debug)] pub struct GenericType(T);