diff options
Diffstat (limited to 'library/core')
| -rw-r--r-- | library/core/src/convert/mod.rs | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/library/core/src/convert/mod.rs b/library/core/src/convert/mod.rs index e1b10e1074d..c542a28beb8 100644 --- a/library/core/src/convert/mod.rs +++ b/library/core/src/convert/mod.rs @@ -464,8 +464,8 @@ pub trait Into<T>: Sized { /// orphaning rules. /// See [`Into`] for more details. /// -/// Prefer using [`Into`] over using `From` when specifying trait bounds on a generic function. -/// This way, types that directly implement [`Into`] can be used as arguments as well. +/// Prefer using [`Into`] over [`From`] when specifying trait bounds on a generic function +/// to ensure that types that only implement [`Into`] can be used as well. /// /// The `From` trait is also very useful when performing error handling. When constructing a function /// that is capable of failing, the return type will generally be of the form `Result<T, E>`. @@ -597,6 +597,9 @@ pub trait From<T>: Sized { /// standard library. For more information on this, see the /// documentation for [`Into`]. /// +/// Prefer using [`TryInto`] over [`TryFrom`] when specifying trait bounds on a generic function +/// to ensure that types that only implement [`TryInto`] can be used as well. +/// /// # Implementing `TryInto` /// /// This suffers the same restrictions and reasoning as implementing @@ -636,6 +639,9 @@ pub trait TryInto<T>: Sized { /// When the [`!`] type is stabilized [`Infallible`] and [`!`] will be /// equivalent. /// +/// Prefer using [`TryInto`] over [`TryFrom`] when specifying trait bounds on a generic function +/// to ensure that types that only implement [`TryInto`] can be used as well. +/// /// `TryFrom<T>` can be implemented as follows: /// /// ``` |