File: ice-blanket-impl-selection-55001.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (35 lines) | stat: -rw-r--r-- 774 bytes parent folder | download | duplicates (6)
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
//@ check-pass
// https://github.com/rust-lang/rust/issues/55001
#![crate_name="foo"]

// Regression test for issue #55001. Previously, we would incorrectly
// cache certain trait selection results when checking for blanket impls,
// resulting in an ICE when we tried to confirm the cached ParamCandidate
// against an obligation.

pub struct DefaultAllocator;
pub struct Standard;
pub struct Inner;

pub trait Rand {}

pub trait Distribution<T> {}
pub trait Allocator<N> {}

impl<T> Rand for T where Standard: Distribution<T> {}

impl<A> Distribution<Point<A>> for Standard
where
DefaultAllocator: Allocator<A>,
Standard: Distribution<A> {}

impl Distribution<Inner> for Standard {}


pub struct Point<N>
where DefaultAllocator: Allocator<N>
{
    field: N
}

fn main() {}