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// 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Forbid assignment into a dynamically sized type.
struct Fat<T: ?Sized> {
f1: isize,
f2: &'static str,
ptr: T
}
#[derive(PartialEq,Eq)]
struct Bar;
#[derive(PartialEq,Eq)]
struct Bar1 {
f: isize
}
trait ToBar {
fn to_bar(&self) -> Bar;
fn to_val(&self) -> isize;
}
impl ToBar for Bar1 {
fn to_bar(&self) -> Bar {
Bar
}
fn to_val(&self) -> isize {
self.f
}
}
pub fn main() {
// Assignment.
let f5: &mut Fat<ToBar> = &mut Fat { f1: 5, f2: "some str", ptr: Bar1 {f :42} };
// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
let z: Box<ToBar> = Box::new(Bar1 {f: 36});
f5.ptr = Bar1 {f: 36};
//~^ ERROR mismatched types
//~| expected `ToBar`
//~| found `Bar1`
//~| expected trait ToBar
//~| found struct `Bar1`
//~| ERROR the trait `std::marker::Sized` is not implemented for the type `ToBar`
}
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