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1 | // Copyright 2014 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 | // Test type checking of uses of associated types via sugary paths. | |
12 | ||
13 | pub trait Foo { | |
14 | type A; | |
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15 | |
16 | fn dummy(&self) { } | |
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17 | } |
18 | ||
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19 | impl Foo for i32 { |
20 | type A = u32; | |
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21 | } |
22 | ||
23 | pub fn f1<T: Foo>(a: T, x: T::A) {} | |
24 | pub fn f2<T: Foo>(a: T) -> T::A { | |
25 | panic!(); | |
26 | } | |
27 | ||
28 | pub fn f1_int_int() { | |
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29 | f1(2i32, 4i32); |
30 | //~^ ERROR mismatched types | |
31 | //~| expected u32 | |
32 | //~| found i32 | |
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33 | } |
34 | ||
35 | pub fn f1_int_uint() { | |
85aaf69f | 36 | f1(2i32, 4u32); |
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37 | } |
38 | ||
39 | pub fn f1_uint_uint() { | |
85aaf69f | 40 | f1(2u32, 4u32); |
54a0048b | 41 | //~^ ERROR `u32: Foo` is not satisfied |
1a4d82fc JJ |
42 | } |
43 | ||
44 | pub fn f1_uint_int() { | |
85aaf69f | 45 | f1(2u32, 4i32); |
54a0048b | 46 | //~^ ERROR `u32: Foo` is not satisfied |
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47 | } |
48 | ||
49 | pub fn f2_int() { | |
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50 | let _: i32 = f2(2i32); |
51 | //~^ ERROR mismatched types | |
52 | //~| expected `i32` | |
53 | //~| found `u32` | |
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54 | } |
55 | ||
56 | pub fn main() { } |