1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
// 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.
// Test `?Sized` local variables.
trait T {}
fn f1<X: ?Sized>(x: &X) {
let _: X; // <-- this is OK, no bindings created, no initializer.
let _: (isize, (X, isize));
let y: X; //~ERROR `X: std::marker::Sized` is not satisfied
let y: (isize, (X, usize)); //~ERROR `X: std::marker::Sized` is not satisfied
}
fn f2<X: ?Sized + T>(x: &X) {
let y: X; //~ERROR `X: std::marker::Sized` is not satisfied
let y: (isize, (X, isize)); //~ERROR `X: std::marker::Sized` is not satisfied
}
fn f3<X: ?Sized>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
let y: X = *x1; //~ERROR `X: std::marker::Sized` is not satisfied
let y = *x2; //~ERROR `X: std::marker::Sized` is not satisfied
let (y, z) = (*x3, 4); //~ERROR `X: std::marker::Sized` is not satisfied
}
fn f4<X: ?Sized + T>(x1: Box<X>, x2: Box<X>, x3: Box<X>) {
let y: X = *x1; //~ERROR `X: std::marker::Sized` is not satisfied
let y = *x2; //~ERROR `X: std::marker::Sized` is not satisfied
let (y, z) = (*x3, 4); //~ERROR `X: std::marker::Sized` is not satisfied
}
fn g1<X: ?Sized>(x: X) {} //~ERROR `X: std::marker::Sized` is not satisfied
fn g2<X: ?Sized + T>(x: X) {} //~ERROR `X: std::marker::Sized` is not satisfied
pub fn main() {
}
|
