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[rust.git] / src / test / ui / dep-graph / dep-graph-trait-impl-two-traits-same-method.rs
1 // Test that adding an impl to a trait `Foo` DOES affect functions
2 // that only use `Bar` if they have methods in common.
3
4 // compile-flags: -Z query-dep-graph -C incremental=tmp/dep-graph-trait-impl-two-traits-same-method
5
6 #![feature(rustc_attrs)]
7 #![allow(dead_code)]
8 #![allow(unused_imports)]
9
10 fn main() { }
11
12 pub trait Foo: Sized {
13     fn method(self) { }
14 }
15
16 pub trait Bar: Sized {
17     fn method(self) { }
18 }
19
20 mod x {
21     use {Foo, Bar};
22
23     #[rustc_if_this_changed]
24     impl Foo for u32 { }
25
26     impl Bar for char { }
27 }
28
29 mod y {
30     use {Foo, Bar};
31
32     #[rustc_then_this_would_need(typeck)] //~ ERROR OK
33     pub fn with_char() {
34         char::method('a');
35     }
36 }
37
38 mod z {
39     use y;
40
41     #[rustc_then_this_would_need(typeck)] //~ ERROR no path
42     pub fn z() {
43         y::with_char();
44     }
45 }