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Implemented Extend<String> and FromIterator<String> for String.

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Without Boats 2015-08-27 08:47:08 -07:00
parent 0d5142f9b8
commit 8af543af5d
1 changed files with 24 additions and 6 deletions
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30
src/libcollections/string.rs
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@ -768,18 +768,27 @@ impl fmt::Display for FromUtf16Error {
#[stable(feature = "rust1", since = "1.0.0")]
impl FromIterator<char> for String {
fn from_iter<I: IntoIterator<Item=char>>(iter: I) -> String {
fn from_iter<I: IntoIterator<Item=char>>(iterable: I) -> String {
let mut buf = String::new();
buf.extend(iter);
buf.extend(iterable);
buf
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl<'a> FromIterator<&'a str> for String {
fn from_iter<I: IntoIterator<Item=&'a str>>(iter: I) -> String {
fn from_iter<I: IntoIterator<Item=&'a str>>(iterable: I) -> String {
let mut buf = String::new();
buf.extend(iter);
buf.extend(iterable);
buf
}
}
#[stable(feature = "extend_string", since = "1.4.0")]
impl FromIterator<String> for String {
fn from_iter<I: IntoIterator<Item=String>>(iterable: I) -> String {
let mut buf = String::new();
buf.extend(iterable);
buf
}
}
@ -798,8 +807,8 @@ impl Extend<char> for String {
#[stable(feature = "extend_ref", since = "1.2.0")]
impl<'a> Extend<&'a char> for String {
fn extend<I: IntoIterator<Item=&'a char>>(&mut self, iter: I) {
self.extend(iter.into_iter().cloned());
fn extend<I: IntoIterator<Item=&'a char>>(&mut self, iterable: I) {
self.extend(iterable.into_iter().cloned());
}
}
@ -812,6 +821,15 @@ impl<'a> Extend<&'a str> for String {
}
}
#[stable(feature = "extend_string", since = "1.4.0")]
impl Extend<String> for String {
fn extend<I: IntoIterator<Item=String>>(&mut self, iterable: I) {
for s in iterable {
self.push_str(&s)
}
}
}
/// A convenience impl that delegates to the impl for `&str`
impl<'a, 'b> Pattern<'a> for &'b String {
type Searcher = <&'b str as Pattern<'a>>::Searcher;