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// run-pass
#![allow(unused_variables)]
/*
# 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 isize {
fn print(&self) { print!("Inner: {}\n", *self); }
}
struct Outer<'a> {
inner: &'a (dyn Inner+'a)
}
impl<'a> Outer<'a> {
fn new(inner: &dyn Inner) -> Outer {
Outer {
inner: inner
}
}
}
pub fn main() {
let inner: isize = 5;
let outer = Outer::new(&inner as &dyn Inner);
outer.inner.print();
}
// minimal
pub trait MyTrait<T> {
fn dummy(&self, t: T) -> T { panic!() }
}
pub struct MyContainer<'a, T:'a> {
foos: Vec<&'a (dyn MyTrait<T>+'a)> ,
}
impl<'a, T> MyContainer<'a, T> {
pub fn add (&mut self, foo: &'a dyn MyTrait<T>) {
self.foos.push(foo);
}
}
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