File: traits19.rs

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (36 lines) | stat: -rw-r--r-- 547 bytes parent folder | download 
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
 
// { dg-additional-options "-w" }
#[lang = "sized"]
pub trait Sized {}

trait Get {
    type Value;
    fn get(&self) -> &<Self as Get>::Value;
}

struct Struct {
    x: isize,
}

impl Get for Struct {
    type Value = isize;
    fn get(&self) -> &isize {
        &self.x
    }
}

trait Grab {
    type U;
    fn grab(&self) -> &<Self as Grab>::U;
}

impl<T: Get> Grab for T {
    type U = <T as Get>::Value;
    fn grab(&self) -> &<T as Get>::Value {
        self.get()
    }
}

fn main() {
    let s = Struct { x: 100 };
    let a = s.grab();
}