31 lines
623 B
Rust
31 lines
623 B
Rust
#[derive(Debug)]
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pub(crate) enum CowMut<'a, T> {
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Owned(T),
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Borrowed(&'a mut T),
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}
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impl<T> std::ops::Deref for CowMut<'_, T> {
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type Target = T;
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fn deref(&self) -> &T {
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match self {
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CowMut::Owned(it) => it,
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CowMut::Borrowed(it) => *it,
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}
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}
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}
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impl<T> std::ops::DerefMut for CowMut<'_, T> {
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fn deref_mut(&mut self) -> &mut T {
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match self {
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CowMut::Owned(it) => it,
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CowMut::Borrowed(it) => *it,
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}
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}
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}
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impl<T: Default> Default for CowMut<'_, T> {
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fn default() -> Self {
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CowMut::Owned(T::default())
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}
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}
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