File: coherence-doesnt-use-infcx-evaluate.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb12u3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,245,420 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 (24 lines) | stat: -rw-r--r-- 485 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
//@ check-pass
// issue: 113415

// Makes sure that coherence doesn't call any of the `predicate_may_hold`-esque fns,
// since they are using a different infcx which doesn't preserve the intercrate flag.

#![feature(specialization)]
//~^ WARN the feature `specialization` is incomplete

trait Assoc {
    type Output;
}

default impl<T> Assoc for T {
    type Output = bool;
}

impl Assoc for u8 {}

trait Foo {}
impl Foo for u32 {}
impl Foo for <u8 as Assoc>::Output {}

fn main() {}