mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-29 18:23:49 +00:00
27 lines
558 B
Rust
27 lines
558 B
Rust
// Tests that using fulfillment in the trait solver means that we detect that a
|
|
// method is impossible, leading to no ambiguity.
|
|
//@ check-pass
|
|
//@ revisions: current next
|
|
//@ ignore-compare-mode-next-solver (explicit revisions)
|
|
//@[next] compile-flags: -Znext-solver
|
|
|
|
struct W<T, U>(Option<T>, Option<U>);
|
|
|
|
impl<'a> W<fn(&'a ()), u32> {
|
|
fn method(&self) {}
|
|
}
|
|
|
|
trait Leak {}
|
|
impl<T: Fn(&())> Leak for T {}
|
|
|
|
impl<T: Leak> W<T, i32> {
|
|
fn method(&self) {}
|
|
}
|
|
|
|
fn test<'a>() {
|
|
let x: W<fn(&'a ()), _> = W(None, None);
|
|
x.method();
|
|
}
|
|
|
|
fn main() {}
|