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Use const generics for IntoRefs

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Yay! Now we can use an array of any size, slice, or vector.
This commit is contained in:
Raph Levien 2021-05-24 14:25:13 -07:00
parent 0cc72d9765
commit 22935fccc6
1 changed files with 1 additions and 37 deletions
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38
piet-gpu-hal/src/hub.rs
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@ -502,43 +502,7 @@ impl<'a, T> IntoRefs<'a, T> for &'a [&'a T] {
} }
} }
// TODO: this will benefit from const generics! impl<'a, T, const N: usize> IntoRefs<'a, T> for &'a [&'a T; N] {
impl<'a, T> IntoRefs<'a, T> for &'a [&'a T; 1] {
type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>;
fn into_refs(self) -> Self::Iterator {
self.into_iter().copied()
}
}
impl<'a, T> IntoRefs<'a, T> for &'a [&'a T; 2] {
type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>;
fn into_refs(self) -> Self::Iterator {
self.into_iter().copied()
}
}
impl<'a, T> IntoRefs<'a, T> for &'a [&'a T; 3] {
type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>;
fn into_refs(self) -> Self::Iterator {
self.into_iter().copied()
}
}
impl<'a, T> IntoRefs<'a, T> for &'a [&'a T; 4] {
type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>;
fn into_refs(self) -> Self::Iterator {
self.into_iter().copied()
}
}
impl<'a, T> IntoRefs<'a, T> for &'a [&'a T; 5] {
type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>;
fn into_refs(self) -> Self::Iterator {
self.into_iter().copied()
}
}
impl<'a, T> IntoRefs<'a, T> for &'a [&'a T; 6] {
type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>; type Iterator = std::iter::Copied<std::slice::Iter<'a, &'a T>>;
fn into_refs(self) -> Self::Iterator { fn into_refs(self) -> Self::Iterator {
self.into_iter().copied() self.into_iter().copied()