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ImmutableString += String optimized.

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This commit is contained in:
Stephen Chung 2021-04-23 23:37:33 +08:00
parent cc1f941875
commit dc3a217b2f
1 changed files with 7 additions and 1 deletions
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6
src/utils.rs
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@ -395,9 +395,15 @@ impl Add<String> for &ImmutableString {
impl AddAssign<String> for ImmutableString { impl AddAssign<String> for ImmutableString {
#[inline(always)] #[inline(always)]
fn add_assign(&mut self, rhs: String) { fn add_assign(&mut self, rhs: String) {
if !rhs.is_empty() {
if self.is_empty() {
self.0 = Into::<SmartString>::into(rhs).into();
} else {
self.make_mut().push_str(&rhs); self.make_mut().push_str(&rhs);
} }
} }
}
}
impl Add<char> for ImmutableString { impl Add<char> for ImmutableString {
type Output = Self; type Output = Self;