// Copyright 2017 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // `#![derive]` raises errors when it occurs at contexts other than ADT // definitions. #![derive(Debug)] //~^ ERROR `derive` may only be applied to structs, enums and unions #[derive(Debug)] //~^ ERROR `derive` may only be applied to structs, enums and unions mod derive { mod inner { #![derive(Debug)] } //~^ ERROR `derive` may only be applied to structs, enums and unions #[derive(Debug)] //~^ ERROR `derive` may only be applied to structs, enums and unions fn derive() { } #[derive(Copy, Clone)] // (can't derive Debug for unions) union U { f: i32 } #[derive(Debug)] struct S; #[derive(Debug)] enum E { } #[derive(Debug)] //~^ ERROR `derive` may only be applied to structs, enums and unions type T = S; #[derive(Debug)] //~^ ERROR `derive` may only be applied to structs, enums and unions impl S { } }