28 lines
811 B
Rust
28 lines
811 B
Rust
// Regression test for #117151, this used to hang the compiler
|
|
|
|
pub type ISO<A: 'static, B: 'static> = (Box<dyn Fn(A) -> B>, Box<dyn Fn(B) -> A>);
|
|
pub fn iso<A: 'static, B: 'static, F1, F2>(a: F1, b: F2) -> ISO<A, B>
|
|
where
|
|
F1: 'static + Fn(A) -> B,
|
|
F2: 'static + Fn(B) -> A,
|
|
{
|
|
(Box::new(a), Box::new(b))
|
|
}
|
|
pub fn iso_un_option<A: 'static, B: 'static>(i: ISO<Option<A>, Option<B>>) -> ISO<A, B> {
|
|
let (ab, ba) = (i.ab, i.ba);
|
|
//~^ ERROR no field `ab` on type
|
|
//~| ERROR no field `ba` on type
|
|
let left = move |o_a| match o_a {
|
|
//~^ ERROR overflow evaluating the requirement
|
|
None => panic!("absured"),
|
|
Some(a) => a,
|
|
};
|
|
let right = move |o_b| match o_b {
|
|
None => panic!("absurd"),
|
|
Some(b) => b,
|
|
};
|
|
iso(left, right)
|
|
}
|
|
|
|
fn main() {}
|