David Wood 8d64937dc2
trait_sel: MetaSized always holds temporarily
As a temporary measure while a proper fix for
`tests/ui/sized-hierarchy/incomplete-inference-issue-143992.rs`
is implemented, make `MetaSized` obligations always hold. In effect,
temporarily reverting the `sized_hierarchy` feature. This is a small
change that can be backported.
2025-07-16 12:35:44 +00:00

24 lines
614 B
Rust

//@ compile-flags: --crate-type=lib
//@ revisions: current next
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[current] check-pass
//@[next] check-pass
//@[next] compile-flags: -Znext-solver
// FIXME(sized_hierarchy): this is expected to fail in the old solver when there
// isn't a temporary revert of the `sized_hierarchy` feature
use std::marker::PhantomData;
trait ParseTokens {
type Output;
}
impl<T: ParseTokens + ?Sized> ParseTokens for Box<T> {
type Output = ();
}
struct Element(<Box<Box<Element>> as ParseTokens>::Output);
impl ParseTokens for Element {
type Output = ();
}