diff options
| -rw-r--r-- | compiler/rustc_error_messages/locales/en-US/lint.ftl | 3 | ||||
| -rw-r--r-- | compiler/rustc_lint/src/builtin.rs | 4 |
2 files changed, 4 insertions, 3 deletions
diff --git a/compiler/rustc_error_messages/locales/en-US/lint.ftl b/compiler/rustc_error_messages/locales/en-US/lint.ftl index cbe7e15a723..de2d21ff355 100644 --- a/compiler/rustc_error_messages/locales/en-US/lint.ftl +++ b/compiler/rustc_error_messages/locales/en-US/lint.ftl @@ -349,3 +349,6 @@ lint-builtin-no-mangle-generic = functions generic over types or consts must be lint-builtin-const-no-mangle = const items should never be `#[no_mangle]` .suggestion = try a static value + +lint-builtin-mutable-transmutes = + transmuting &T to &mut T is undefined behavior, even if the reference is unused, consider instead using an UnsafeCell diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 6dfcc0eec49..c2729b543c4 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -1272,10 +1272,8 @@ impl<'tcx> LateLintPass<'tcx> for MutableTransmutes { get_transmute_from_to(cx, expr).map(|(ty1, ty2)| (ty1.kind(), ty2.kind())) { if to_mt == hir::Mutability::Mut && from_mt == hir::Mutability::Not { - let msg = "transmuting &T to &mut T is undefined behavior, \ - even if the reference is unused, consider instead using an UnsafeCell"; cx.struct_span_lint(MUTABLE_TRANSMUTES, expr.span, |lint| { - lint.build(msg).emit(); + lint.build(fluent::lint::builtin_mutable_transmutes).emit(); }); } } |