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| author | bors <bors@rust-lang.org> | 2015-02-19 18:36:59 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2015-02-19 18:36:59 +0000 |
| commit | 522d09dfecbeca1595f25ac58c6d0178bbd21d7d (patch) | |
| tree | cc0252dd3413e5f890d0ebcfdaa096e5b002be0b /src/test/compile-fail/method-ambig-one-trait-coerce.rs | |
| parent | 0b664bb8436f2cfda7f13a6f302ab486f332816f (diff) | |
| parent | 49771bafa5fca16486bfd06741dac3de2c587adf (diff) | |
| download | rust-1.0.0-alpha.2.tar.gz rust-1.0.0-alpha.2.zip | |
Auto merge of #22541 - Manishearth:rollup, r=Gankro 1.0.0-alpha.2
Continued from #22520
Diffstat (limited to 'src/test/compile-fail/method-ambig-one-trait-coerce.rs')
| -rw-r--r-- | src/test/compile-fail/method-ambig-one-trait-coerce.rs | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/src/test/compile-fail/method-ambig-one-trait-coerce.rs b/src/test/compile-fail/method-ambig-one-trait-coerce.rs deleted file mode 100644 index cb5da4bb547..00000000000 --- a/src/test/compile-fail/method-ambig-one-trait-coerce.rs +++ /dev/null @@ -1,50 +0,0 @@ -// 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. - -// Test that when we pick a trait based on coercion, versus subtyping, -// we consider all possible coercions equivalent and don't try to pick -// a best one. - -trait Object { } - -trait foo { - fn foo(self) -> isize; -} - -impl foo for Box<Object+'static> { - fn foo(self) -> isize {1} -} - -impl foo for Box<Object+Send> { - fn foo(self) -> isize {2} -} - -fn test1(x: Box<Object+Send+Sync>) { - // FIXME(#18737) -- we ought to consider this to be ambiguous, - // since we could coerce to either impl. However, what actually - // happens is that we consider both impls applicable because of - // incorrect subtyping relation. We then decide to call this a - // call to the `foo` trait, leading to the following error - // message. - - x.foo(); //~ ERROR `foo` is not implemented -} - -fn test2(x: Box<Object+Send>) { - // Not ambiguous because it is a precise match: - x.foo(); -} - -fn test3(x: Box<Object+'static>) { - // Not ambiguous because it is a precise match: - x.foo(); -} - -fn main() { } |
