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Extend const_convert for Cow on From<&str> and From<String> #99733

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Extend const_convert for Cow on From<&str> and From<String> #99733

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6 changes: 4 additions & 2 deletions library/alloc/src/string.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2701,7 +2701,8 @@ impl<'a> From<Cow<'a, str>> for String {

#[cfg(not(no_global_oom_handling))]
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a> From<&'a str> for Cow<'a, str> {
#[rustc_const_unstable(feature = "const_convert", issue = "88674")]
impl<'a> const From<&'a str> for Cow<'a, str> {
/// Converts a string slice into a [`Borrowed`] variant.
/// No heap allocation is performed, and the string
/// is not copied.
Expand All @@ -2722,7 +2723,8 @@ impl<'a> From<&'a str> for Cow<'a, str> {

#[cfg(not(no_global_oom_handling))]
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a> From<String> for Cow<'a, str> {
#[rustc_const_unstable(feature = "const_convert", issue = "88674")]
impl<'a> const From<String> for Cow<'a, str> {
/// Converts a [`String`] into an [`Owned`] variant.
/// No heap allocation is performed, and the string
/// is not copied.
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