File: rp_impl_trait_fail.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (30 lines) | stat: -rw-r--r-- 657 bytes parent folder | download | duplicates (11)
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
struct Uwu<const N: u32 = 1, const M: u32 = N>;

trait Trait {}
impl<const N: u32> Trait for Uwu<N> {}

fn rawr() -> impl Trait {
    //~^ error: the trait bound `Uwu<10, 12>: Trait` is not satisfied
    Uwu::<10, 12>
}

trait Traitor<const N: u8 = 1, const M: u8 = N> {}

impl<const N: u8> Traitor<N, 2> for u32 {}
impl Traitor<1, 2> for u64 {}

fn uwu<const N: u8>() -> impl Traitor<N> {
    //~^ error: the trait bound `u32: Traitor<N>` is not satisfied
    1_u32
}

fn owo() -> impl Traitor {
    //~^ error: the trait bound `u64: Traitor` is not satisfied
    1_u64
}

fn main() {
    rawr();
    uwu(); //~ ERROR: type annotations needed
    owo();
}