rust/src/test/compile-fail/trait-bounds-cant-coerce.rs

32 lines
817 B
Rust

// Copyright 2013 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.
trait Foo {
fn dummy(&self) { }
}
fn a(_x: Box<Foo+Send>) {
}
fn c(x: Box<Foo+Sync+Send>) {
a(x);
}
fn d(x: Box<Foo>) {
a(x); //~ ERROR mismatched types
//~| expected `Box<Foo + Send + 'static>`
//~| found `Box<Foo + 'static>`
//~| expected bounds `Send`
//~| found no bounds
}
fn main() { }