diff options
| -rw-r--r-- | compiler/rustc_lint_defs/src/builtin.rs | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index ae973e6a563..6d2cb63c1d7 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -3134,8 +3134,9 @@ declare_lint! { declare_lint! { /// The `repr_transparent_external_private_fields` lint - /// detects types marked #[repr(trasparent)] that (transitively) - /// contain an external ZST type marked #[non_exhaustive] + /// detects types marked `#[repr(transparent)]` that (transitively) + /// contain an external ZST type marked `#[non_exhaustive]` or containing + /// private fields /// /// ### Example /// @@ -3150,17 +3151,20 @@ declare_lint! { /// This will produce: /// /// ```text - /// error: deprecated `#[macro_use]` attribute used to import macros should be replaced at use sites with a `use` item to import the macro instead - /// --> src/main.rs:3:1 + /// error: zero-sized fields in repr(transparent) cannot contain external non-exhaustive types + /// --> src/main.rs:5:28 /// | - /// 3 | #[macro_use] - /// | ^^^^^^^^^^^^ + /// 5 | struct Bar(u32, ([u32; 0], NonExhaustiveZst)); + /// | ^^^^^^^^^^^^^^^^ /// | /// note: the lint level is defined here /// --> src/main.rs:1:9 /// | /// 1 | #![deny(repr_transparent_external_private_fields)] /// | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + /// = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + /// = note: for more information, see issue #78586 <https://github.com/rust-lang/rust/issues/78586> + /// = note: this struct contains `NonExhaustiveZst`, which is marked with `#[non_exhaustive]`, and makes it not a breaking change to become non-zero-sized in the future. /// ``` /// /// ### Explanation |