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OsStr eq_ignore_ascii_case takes arg by value #81710

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Feb 5, 2021
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OsStr eq_ignore_ascii_case takes arg by value #81710

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OsStr eq_ignore_ascii_case takes arg by value 
Per a comment on #70516 this changes `eq_ignore_ascii_case` to take the generic parameter `S: AsRef<OsStr>` by value instead of by reference.

This is technically a breaking change to an unstable method. I think the only way it would break is if you called this method with an explicit type parameter, ie `my_os_str.eq_ignore_ascii_case::<str>("foo")` becomes `my_os_str.eq_ignore_ascii_case::<&str>("foo")`.

Besides that, I believe it is overall more flexible since it can now take an owned `OsString` for example.

If this change should be made in some other PR (like #80193) then please just close this.
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@TyPR124
TyPR124 authored Feb 3, 2021
commit 4d1efb751a8fd70a38c695a6047a837d115b8af5
2 changes: 1 addition & 1 deletion library/std/src/ffi/os_str.rs
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Expand Up @@ -826,7 +826,7 @@ impl OsStr {
/// assert!(!OsString::from("Ferrös").eq_ignore_ascii_case("FERRÖS"));
/// ```
#[unstable(feature = "osstring_ascii", issue = "70516")]
pub fn eq_ignore_ascii_case<S: ?Sized + AsRef<OsStr>>(&self, other: &S) -> bool {
pub fn eq_ignore_ascii_case<S: AsRef<OsStr>>(&self, other: S) -> bool {
self.inner.eq_ignore_ascii_case(&other.as_ref().inner)
}
}
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