Jacob Pratt 05f22c3614

Rollup merge of #121840 - oli-obk:freeze, r=dtolnay ...

Expose the Freeze trait again (unstably) and forbid implementing it manually

non-emoji version of https://github.com/rust-lang/rust/pull/121501

cc #60715

This trait is useful for generic constants (associated consts of generic traits). See the test (`tests/ui/associated-consts/freeze.rs`) added in this PR for a usage example. The builtin `Freeze` trait is the only way to do it, users cannot work around this issue.

It's also a useful trait for building some very specific abstrations, as shown by the usage by the `zerocopy` crate: https://github.com/google/zerocopy/issues/941

cc ```@RalfJung```

T-lang signed off on reexposing this unstably: https://github.com/rust-lang/rust/pull/121501#issuecomment-1969827742

2024-03-11 03:47:19 -04:00

..

alloc_example.rs

Fix compilation errors in rustc_codegen_gcc examples

2023-11-02 21:03:27 +01:00

alloc_system.rs

Remove libc dependency in cg_gcc alloc_system example

2023-11-02 21:03:27 +01:00

arbitrary_self_types_pointers_and_wrappers.rs

Merge commit '11a0cceab966e5ff1058ddbcab5977e8a1d6d290' into subtree-update_cg_gcc_2023-10-09

2023-10-09 15:53:34 -04:00

dst-field-align.rs

…

example.rs

…

mini_core_hello_world.rs

Improve wording of static_mut_ref

2024-02-18 06:01:40 +03:00

mini_core.rs

Rollup merge of #121840 - oli-obk:freeze, r=dtolnay

2024-03-11 03:47:19 -04:00

mod_bench.rs

Fix compilation errors in rustc_codegen_gcc examples

2023-11-02 21:03:27 +01:00

std_example.rs

Allow internal_features in rustc_codegen_gcc examples

2023-12-07 15:26:18 +01:00

subslice-patterns-const-eval.rs

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track-caller-attribute.rs

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