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Refactor Option::filter method

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This commit is contained in:
Shanavas M 2017-11-11 17:01:55 +03:00
parent 69ee5a8a97
commit abff092f90
1 changed files with 4 additions and 8 deletions
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12
src/libcore/option.rs
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@ -634,16 +634,12 @@ impl<T> Option<T> {
#[inline] #[inline]
#[unstable(feature = "option_filter", issue = "45860")] #[unstable(feature = "option_filter", issue = "45860")]
pub fn filter<P: FnOnce(&T) -> bool>(self, predicate: P) -> Self { pub fn filter<P: FnOnce(&T) -> bool>(self, predicate: P) -> Self {
match self { if let Some(x) = self {
Some(x) => { if predicate(&x) {
if predicate(&x) { return Some(x)
Some(x)
} else {
None
}
} }
None => None,
} }
None
} }
/// Returns the option if it contains a value, otherwise returns `optb`. /// Returns the option if it contains a value, otherwise returns `optb`.