1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
struct Foo {
f: isize,
}
impl Foo {
fn foo(self: isize, x: isize) -> isize {
//~^ ERROR invalid `self` parameter type
self.f + x
}
}
struct Bar<T> {
f: T,
}
impl<T> Bar<T> {
fn foo(self: Bar<isize>, x: isize) -> isize {
//~^ ERROR invalid `self` parameter type
x
}
fn bar(self: &Bar<usize>, x: isize) -> isize {
//~^ ERROR invalid `self` parameter type
x
}
}
trait SomeTrait {
fn dummy1(&self);
fn dummy2(&self);
fn dummy3(&self);
}
impl<'a, T> SomeTrait for &'a Bar<T> {
fn dummy1(self: &&'a Bar<T>) { }
fn dummy2(self: &Bar<T>) {} //~ ERROR mismatched `self` parameter type
//~^ ERROR mismatched `self` parameter type
fn dummy3(self: &&Bar<T>) {}
//~^ ERROR mismatched `self` parameter type
//~| expected reference `&'a Bar<T>`
//~| found reference `&Bar<T>`
//~| lifetime mismatch
//~| ERROR mismatched `self` parameter type
//~| expected reference `&'a Bar<T>`
//~| found reference `&Bar<T>`
//~| lifetime mismatch
}
fn main() {
let foo = Box::new(Foo {
f: 1,
});
println!("{}", foo.foo(2));
let bar = Box::new(Bar {
f: 1,
});
println!("{} {}", bar.foo(2), bar.bar(2));
}
|
