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Support ?Trait bounds in supertraits and dyn Trait under a feature gate

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Bryanskiy 2024-02-23 16:39:57 +03:00
parent 28e684b470
commit 2a73553513
34 changed files with 305 additions and 85 deletions
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2
compiler/rustc_feature/src/unstable.rs
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@ -205,6 +205,8 @@ declare_features! (
(unstable, lifetime_capture_rules_2024, "1.76.0", None),
/// Allows `#[link(..., cfg(..))]`; perma-unstable per #37406
(unstable, link_cfg, "1.14.0", None),
/// Allows using `?Trait` trait bounds in more contexts.
(internal, more_maybe_bounds, "CURRENT_RUSTC_VERSION", None),
/// Allows the `multiple_supertrait_upcastable` lint.
(unstable, multiple_supertrait_upcastable, "1.69.0", None),
/// Allow negative trait bounds. This is an internal-only feature for testing the trait solver!