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stabilize Result::map_or_else

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Lzu Tao
2019-11-12 03:09:10 +00:00
parent 2de6c35d46
commit c06a8ea727
1 changed files with 1 additions and 2 deletions
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3
src/libcore/result.rs
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@@ -529,7 +529,6 @@ impl<T, E> Result<T, E> {
/// Basic usage: /// Basic usage:
/// ///
/// ``` /// ```
/// #![feature(result_map_or_else)]
/// let k = 21; /// let k = 21;
/// ///
/// let x : Result<_, &str> = Ok("foo"); /// let x : Result<_, &str> = Ok("foo");
@@ -539,7 +538,7 @@ impl<T, E> Result<T, E> {
/// assert_eq!(x.map_or_else(|e| k * 2, |v| v.len()), 42); /// assert_eq!(x.map_or_else(|e| k * 2, |v| v.len()), 42);
/// ``` /// ```
#[inline] #[inline]
#[unstable(feature = "result_map_or_else", issue = "53268")] #[stable(feature = "result_map_or_else", since = "1.41.0")]
pub fn map_or_else<U, D: FnOnce(E) -> U, F: FnOnce(T) -> U>(self, default: D, f: F) -> U { pub fn map_or_else<U, D: FnOnce(E) -> U, F: FnOnce(T) -> U>(self, default: D, f: F) -> U {
match self { match self {
Ok(t) => f(t), Ok(t) => f(t),