// Copyright 2014 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. trait Trait { fn dummy(&self) { } } #[macro_use] extern crate derivative; #[derive(Derivative)] #[derivative(Debug)] struct Foo { foo: T, } #[derive(Derivative)] #[derivative(Debug)] struct Bar where T: Trait { bar: T, } impl Trait for isize {} #[test] fn main() { let a = Foo { foo: 12 }; let b = Bar { bar: 12 }; println!("{:?} {:?}", a, b); }