bjoernager/rust
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Simplify Set1::insert.

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This commit is contained in:
Mazdak Farrokhzad 2019-05-29 12:12:09 +02:00
parent 4b9d80325a
commit 3f3087bb7f
1 changed files with 5 additions and 10 deletions
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15
src/librustc/middle/resolve_lifetime.rs
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@ -170,16 +170,11 @@ pub enum Set1<T> {
impl<T: PartialEq> Set1<T> { impl<T: PartialEq> Set1<T> {
pub fn insert(&mut self, value: T) { pub fn insert(&mut self, value: T) {
if let Set1::Empty = *self { *self = match self {
*self = Set1::One(value); Set1::Empty => Set1::One(value),
return; Set1::One(old) if *old == value => return,
} _ => Set1::Many,
if let Set1::One(ref old) = *self { };
if *old == value {
return;
}
}
*self = Set1::Many;
} }
} }