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// Testing inference capabilities.
//@ check-pass
//@ revisions: current next
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[next] compile-flags: -Znext-solver
#![feature(inherent_associated_types)]
#![allow(incomplete_features)]
#![allow(dropping_copy_types)]
use std::convert::identity;
struct Container<T>(T);
impl Container<u32> {
type Sink = ();
}
impl<Any> Container<Any> {
type Thing = Any;
}
impl<T> Container<(T, ())> {
type Output = ((), Wrapped<T>);
}
fn main() {
// Inferred via the Self type of the impl.
let _: Container<_>::Sink;
// Inferred via the RHS:
let _: Container<_>::Thing = 0;
let _: Container<Wrapped<_>>::Thing = Wrapped(false);
let _: Container<_>::Output = (drop(1), Wrapped("..."));
let binding: Container<_>::Thing = Default::default(); // unsolved at this point
identity::<String>(binding); // constrained and solved here
}
struct Wrapped<T>(T);
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