diff options
Diffstat (limited to 'library/core/src')
| -rw-r--r-- | library/core/src/ops/function.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/library/core/src/ops/function.rs b/library/core/src/ops/function.rs index 8d4b0a7ccac..bcf0b8e37bc 100644 --- a/library/core/src/ops/function.rs +++ b/library/core/src/ops/function.rs @@ -75,6 +75,7 @@ use crate::marker::Tuple; )] #[fundamental] // so that regex can rely that `&str: !FnMut` #[must_use = "closures are lazy and do nothing unless called"] +#[const_trait] pub trait Fn<Args>: FnMut<Args> { /// Performs the call operation. #[unstable(feature = "fn_traits", issue = "29625")] @@ -244,6 +245,7 @@ pub trait Fn<Args: Tuple>: FnMut<Args> { )] #[fundamental] // so that regex can rely that `&str: !FnMut` #[must_use = "closures are lazy and do nothing unless called"] +#[const_trait] pub trait FnMut<Args>: FnOnce<Args> { /// Performs the call operation. #[unstable(feature = "fn_traits", issue = "29625")] @@ -413,6 +415,7 @@ pub trait FnMut<Args: Tuple>: FnOnce<Args> { )] #[fundamental] // so that regex can rely that `&str: !FnMut` #[must_use = "closures are lazy and do nothing unless called"] +#[const_trait] pub trait FnOnce<Args> { /// The returned type after the call operator is used. #[lang = "fn_once_output"] |