File tree Expand file tree Collapse file tree 2 files changed +69
-0
lines changed Expand file tree Collapse file tree 2 files changed +69
-0
lines changed Original file line number Diff line number Diff line change
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.
4
+ //
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.
10
+
11
+ // Ensure that an user-defined type admits multiple inherent methods
12
+ // with the same name, which can be called on values that have a
13
+ // precise enough type to allow distinguishing between the methods.
14
+
15
+ struct Foo < T > ( T ) ;
16
+
17
+ impl Foo < usize > {
18
+ fn bar ( & self ) -> i32 { self . 0 as i32 }
19
+ }
20
+
21
+ impl Foo < isize > {
22
+ fn bar ( & self ) -> i32 { -( self . 0 as i32 ) }
23
+ }
24
+
25
+ fn main ( ) {
26
+ let foo_u = Foo :: < usize > ( 5 ) ;
27
+ assert_eq ! ( foo_u. bar( ) , 5 ) ;
28
+
29
+ let foo_i = Foo :: < isize > ( 3 ) ;
30
+ assert_eq ! ( foo_i. bar( ) , -3 ) ;
31
+ }
Original file line number Diff line number Diff line change
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.
4
+ //
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.
10
+
11
+ struct Foo ;
12
+
13
+ trait Trait {
14
+ fn bar ( & self ) ;
15
+ }
16
+
17
+ // Inherent impls should be preferred over trait ones.
18
+ impl Foo {
19
+ fn bar ( & self ) { }
20
+ }
21
+
22
+ impl Trait {
23
+ fn baz ( _: & Foo ) { }
24
+ }
25
+
26
+ impl Trait for Foo {
27
+ fn bar ( & self ) { panic ! ( "wrong method called!" ) }
28
+ }
29
+
30
+ fn main ( ) {
31
+ Foo . bar ( ) ;
32
+ Foo :: bar ( & Foo ) ;
33
+ <Foo >:: bar ( & Foo ) ;
34
+
35
+ // Should work even if Trait::baz doesn't exist.
36
+ // N.B: `<Trait>::bar` would be ambiguous.
37
+ <Trait >:: baz ( & Foo ) ;
38
+ }
You can’t perform that action at this time.
0 commit comments