chore: clarified cow owned_no_mutation comments
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@ -52,7 +52,8 @@ mod tests {
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fn owned_no_mutation() -> Result<(), &'static str> {
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fn owned_no_mutation() -> Result<(), &'static str> {
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// We can also pass `slice` without `&` so Cow owns it directly.
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// We can also pass `slice` without `&` so Cow owns it directly.
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// In this case no mutation occurs and thus also no clone,
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// In this case no mutation occurs and thus also no clone,
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// but the result is still owned because it always was.
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// but the result is still owned because it was never borrowed
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// or mutated.
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let slice = vec![0, 1, 2];
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let slice = vec![0, 1, 2];
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let mut input = Cow::from(slice);
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let mut input = Cow::from(slice);
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match abs_all(&mut input) {
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match abs_all(&mut input) {
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