rust/src/test/compile-fail/evec-subtyping.rs

// Copyright 2012 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.

fn wants_box(x: @[uint]) { }
fn wants_uniq(x: ~[uint]) { }
fn wants_three(x: [uint * 3]) { }

fn has_box(x: @[uint]) {
   wants_box(x);
   wants_uniq(x); //~ ERROR [] storage differs: expected ~ but found @
   wants_three(x); //~ ERROR [] storage differs: expected 3 but found @
}

fn has_uniq(x: ~[uint]) {
   wants_box(x); //~ ERROR [] storage differs: expected @ but found ~
   wants_uniq(x);
   wants_three(x); //~ ERROR [] storage differs: expected 3 but found ~
}

fn has_three(x: [uint * 3]) {
   wants_box(x); //~ ERROR [] storage differs: expected @ but found 3
   wants_uniq(x); //~ ERROR [] storage differs: expected ~ but found 3
   wants_three(x);
}

fn has_four(x: [uint * 4]) {
   wants_box(x); //~ ERROR [] storage differs: expected @ but found 4
   wants_uniq(x); //~ ERROR [] storage differs: expected ~ but found 4
   wants_three(x); //~ ERROR [] storage differs: expected 3 but found 4
}

fn main() {
}