Files
rust/tests/ui/traits/next-solver/opaques/different-bound-vars.rs
2025-08-25 14:20:18 +02:00

21 lines
645 B
Rust

// Check whether we support defining uses with different bound vars.
// This needs to handle both mismatches for the same opaque type storage
// entry, but also between different entries.
//@ revisions: current next
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[next] compile-flags: -Znext-solver
//@[next] check-pass
fn foo<T, U>(b: bool) -> impl Sized {
if b {
let _: for<'a> fn(&'a ()) = foo::<T, U>(false);
let _: for<'b> fn(&'b ()) = foo::<U, T>(false);
//[current]~^ ERROR concrete type differs from previous defining opaque type use
}
(|&()| ()) as for<'c> fn(&'c ())
}
fn main() {}