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Rollup merge of #132113 - LaihoE:pattern_as_utf8_default_impl, r=workingjubilee

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Provide a default impl for Pattern::as_utf8_pattern

Newly added ```Pattern::as_utf8_pattern()``` causes needless breakage for crates that implement Pattern. This provides a default implementation instead.
r? `@BurntSushi`
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Jubilee 2024-10-24 15:53:35 -07:00 committed by GitHub
commit 96ae9d4703
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1 changed files with 3 additions and 11 deletions
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14
library/core/src/str/pattern.rs
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@ -162,7 +162,9 @@ fn strip_suffix_of<'a>(self, haystack: &'a str) -> Option<&'a str>
}
/// Returns the pattern as utf-8 bytes if possible.
fn as_utf8_pattern(&self) -> Option<Utf8Pattern<'_>>;
fn as_utf8_pattern(&self) -> Option<Utf8Pattern<'_>> {
None
}
}
/// Result of calling [`Pattern::as_utf8_pattern()`].
/// Can be used for inspecting the contents of a [`Pattern`] in cases
@ -675,11 +677,6 @@ impl<C: MultiCharEq> Pattern for MultiCharEqPattern<C> {
fn into_searcher(self, haystack: &str) -> MultiCharEqSearcher<'_, C> {
MultiCharEqSearcher { haystack, char_eq: self.0, char_indices: haystack.char_indices() }
}
#[inline]
fn as_utf8_pattern(&self) -> Option<Utf8Pattern<'_>> {
None
}
}
unsafe impl<'a, C: MultiCharEq> Searcher<'a> for MultiCharEqSearcher<'a, C> {
@ -770,11 +767,6 @@ fn strip_suffix_of<$a>(self, haystack: &$a str) -> Option<&$a str>
{
($pmap)(self).strip_suffix_of(haystack)
}
#[inline]
fn as_utf8_pattern(&self) -> Option<Utf8Pattern<'_>> {
None
}
};
}