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Add FromIterator implementations for Cow<str>

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This seems like an oversight, since the corresponding implementation for `Cow<[T]> where T: Clone` exists.
This commit is contained in:
Alexander Altman 2016-07-26 21:16:46 -07:00 • committed by Alexander Ronald Altman
parent f5e7a5910d
commit 42e64bc5f2
1 changed files with 21 additions and 0 deletions
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21
src/libcollections/string.rs
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@ -1874,6 +1874,27 @@ impl<'a> From<String> for Cow<'a, str> {
}
}
#[stable(feature = "cow_str_from_iter", since = "1.12.0")]
impl<'a> FromIterator<char> for Cow<'a, str> {
fn from_iter<I: IntoIterator<Item = char>>(it: I) -> Cow<'a, str> {
Cow::Owned(FromIterator::from_iter(it))
}
}
#[stable(feature = "cow_str_from_iter", since = "1.12.0")]
impl<'a, 'b> FromIterator<&'b str> for Cow<'a, str> {
fn from_iter<I: IntoIterator<Item = &'b str>>(it: I) -> Cow<'a, str> {
Cow::Owned(FromIterator::from_iter(it))
}
}
#[stable(feature = "cow_str_from_iter", since = "1.12.0")]
impl<'a> FromIterator<String> for Cow<'a, str> {
fn from_iter<I: IntoIterator<Item = String>>(it: I) -> Cow<'a, str> {
Cow::Owned(FromIterator::from_iter(it))
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl Into<Vec<u8>> for String {
fn into(self) -> Vec<u8> {