diff options
Diffstat (limited to 'library/core/src/default.rs')
| -rw-r--r-- | library/core/src/default.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/library/core/src/default.rs b/library/core/src/default.rs index 0a15cedfb55..4d108b0c18e 100644 --- a/library/core/src/default.rs +++ b/library/core/src/default.rs @@ -103,6 +103,8 @@ use crate::ascii::Char as AsciiChar; /// ``` #[rustc_diagnostic_item = "Default"] #[stable(feature = "rust1", since = "1.0.0")] +#[const_trait] +#[rustc_const_unstable(feature = "const_default", issue = "67792")] pub trait Default: Sized { /// Returns the "default value" for a type. /// @@ -149,7 +151,8 @@ pub macro Default($item:item) { macro_rules! default_impl { ($t:ty, $v:expr, $doc:tt) => { #[stable(feature = "rust1", since = "1.0.0")] - impl Default for $t { + #[rustc_const_unstable(feature = "const_default", issue = "67792")] + impl const Default for $t { #[inline(always)] #[doc = $doc] fn default() -> $t { |