trivial-bounds-inconsistent-copy.rs

// Copyright 2018 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.

// run-pass
// Check tautalogically false `Copy` bounds
#![feature(trivial_bounds)]
#![allow(unused)]

fn copy_string(t: String) -> String where String: Copy {
    is_copy(&t);
    let x = t;
    drop(t);
    t
}

fn copy_out_string(t: &String) -> String where String: Copy {
    *t
}

fn copy_string_with_param<T>(x: String) where String: Copy {
    let y = x;
    let z = x;
}

// Check that no reborrowing occurs
fn copy_mut<'a>(t: &&'a mut i32) -> &'a mut i32 where for<'b> &'b mut i32: Copy {
    is_copy(t);
    let x = *t;
    drop(x);
    x
}

fn is_copy<T: Copy>(t: &T) {}


fn main() {}