| // 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() { |
| } |
