From 8103505a4d9bcef3eb5715a41cc0eb08d92c05d5 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sun, 22 Sep 2024 08:11:17 +0200 Subject: fix rustc_nonnull_optimization_guaranteed docs --- compiler/rustc_feature/src/builtin_attrs.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'compiler/rustc_feature/src') diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index 3b7e0d82d0f..edff6b1175c 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -863,8 +863,10 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ rustc_attr!( rustc_nonnull_optimization_guaranteed, Normal, template!(Word), WarnFollowing, EncodeCrossCrate::Yes, - "the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable \ - niche optimizations in libcore and libstd and will never be stable", + "the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to document \ + guaranteed niche optimizations in libcore and libstd and will never be stable\n\ + (note that the compiler does not even check whether the type indeed is being non-null-optimized; \ + it is your responsibility to ensure that the attribute is only used on types that are optimized)", ), // ========================================================================== -- cgit 1.4.1-3-g733a5