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
|
// Copyright 2014 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.
struct Foo {
f: int
}
impl Foo {
fn bar(&self) -> int {
println!("f is {}", self.f);
self.f
}
}
trait Tr {
fn tar(&self, x: Box<Foo>) -> Foo;
}
impl Tr for Foo {
fn tar(&self, x: Box<Foo>) -> Foo {
Foo{ f: self.f + x.f }
}
}
trait Tr2<X, Y: Tr> {
fn squid(&self, y: &Y, z: Self) -> Box<X>;
}
impl Tr2<Foo, Foo> for Foo {
fn squid(&self, y: &Foo, z: Foo) -> Box<Foo> {
box Foo { f: y.f + z.f + self.f }
}
}
enum En {
Var1,
Var2,
Var3(int, int, Foo)
}
fn main() {
let x = Foo { f: 237 };
let _f = x.bar();
let en = Var2;
let _ = match en {
Var1 => x.bar(),
Var2 => 34,
Var3(x, y, f) => f.bar()
};
}
|
