rust/tests/ui/associated-inherent-types/dont-select-if-disabled.rs

18 lines
728 B
Rust

// Regression test for #113265.
// Don't perform selection if the feature is not enabled to prevent cycle errors
// that exist due to current limitations of the implementation from masking the
// feature-gate error. See the aforementioned issue.
// This does lead to rustc not mentioning inherent associated types at usage-sites of
// IATs that were defined in an external crate but that's acceptable for now.
// FIXME(inherent_associated_types): Revisit this decision once the implementation is smarter.
// The following program would currently lead to a cycle if IATs were enabled.
struct S(S::P); //~ ERROR ambiguous associated type
impl S { type P = (); } //~ ERROR inherent associated types are unstable
fn main() {}