1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Test a case of a trait which extends the same supertrait twice, but
12 // with difference type parameters. Test that we can invoke the
13 // various methods in various ways successfully.
14 // See also `compile-fail/trait-repeated-supertrait-ambig.rs`.
16 // pretty-expanded FIXME #23616
19 fn same_as(&self, t: T) -> bool;
22 trait CompareToInts : CompareTo<i64> + CompareTo<u64> {
25 impl CompareTo<i64> for i64 {
26 fn same_as(&self, t: i64) -> bool { *self == t }
29 impl CompareTo<u64> for i64 {
30 fn same_as(&self, t: u64) -> bool { *self == (t as i64) }
33 impl CompareToInts for i64 { }
35 fn with_obj(c: &CompareToInts) -> bool {
36 c.same_as(22_i64) && c.same_as(22_u64)
39 fn with_trait<C:CompareToInts>(c: &C) -> bool {
40 c.same_as(22_i64) && c.same_as(22_u64)
43 fn with_ufcs1<C:CompareToInts>(c: &C) -> bool {
44 CompareToInts::same_as(c, 22_i64) && CompareToInts::same_as(c, 22_u64)
47 fn with_ufcs2<C:CompareToInts>(c: &C) -> bool {
48 CompareTo::same_as(c, 22_i64) && CompareTo::same_as(c, 22_u64)
52 assert_eq!(22_i64.same_as(22_i64), true);
53 assert_eq!(22_i64.same_as(22_u64), true);
54 assert_eq!(with_trait(&22), true);
55 assert_eq!(with_obj(&22), true);
56 assert_eq!(with_ufcs1(&22), true);
57 assert_eq!(with_ufcs2(&22), true);