// Copyright 2013 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. /* # ICE when returning struct with reference to trait A function which takes a reference to a trait and returns a struct with that reference results in an ICE. This does not occur with concrete types, only with references to traits. */ // original trait Inner { fn print(&self); } impl Inner for int { fn print(&self) { print!("Inner: {}\n", *self); } } struct Outer<'a> { inner: &'a (Inner+'a) } impl<'a> Outer<'a> { fn new(inner: &Inner) -> Outer { Outer { inner: inner } } } pub fn main() { let inner = 5; let outer = Outer::new(&inner as &Inner); outer.inner.print(); } // minimal pub trait MyTrait { fn dummy(&self, t: T) -> T { panic!() } } pub struct MyContainer<'a, T> { foos: Vec<&'a (MyTrait+'a)> , } impl<'a, T> MyContainer<'a, T> { pub fn add (&mut self, foo: &'a MyTrait) { self.foos.push(foo); } }