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feat(spansy): add AsRef<Span<[u8]>> impl for Span<str> (#20)

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sinu.eth
2024-02-08 10:28:15 -08:00
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parent 7e1013e4f6
commit b1a3b01a30
1 changed files with 10 additions and 0 deletions
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10
spansy/src/lib.rs
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@@ -169,6 +169,16 @@ impl Span<str> {
}
}
impl AsRef<Span<[u8]>> for Span<str> {
fn as_ref(&self) -> &Span<[u8]> {
// # Safety
// Span<str> can be safely converted to Span<[u8]> because they have
// an identical layout and only differ in the phantom type parameter
// which is a ZST.
unsafe { &*(self as *const Span<str> as *const Span<[u8]>) }
}
}
impl AsRef<str> for Span<str> {
fn as_ref(&self) -> &str {
// # Safety