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Make util::str::str_join operate on Iterators

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This commit is contained in:
Corey Farwell 2015-09-28 19:45:01 -04:00
parent 8547d132f9
commit 2857e547be
1 changed files with 4 additions and 2 deletions
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6
components/util/str.rs
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@ -326,8 +326,10 @@ pub unsafe fn c_str_to_string(s: *const c_char) -> String {
from_utf8(CStr::from_ptr(s).to_bytes()).unwrap().to_owned() from_utf8(CStr::from_ptr(s).to_bytes()).unwrap().to_owned()
} }
pub fn str_join<T: AsRef<str>>(strs: &[T], join: &str) -> String { pub fn str_join<I, T>(strs: I, join: &str) -> String
strs.iter().fold(String::new(), |mut acc, s| { where I: IntoIterator<Item=T>, T: AsRef<str>,
{
strs.into_iter().fold(String::new(), |mut acc, s| {
if !acc.is_empty() { acc.push_str(join); } if !acc.is_empty() { acc.push_str(join); }
acc.push_str(s.as_ref()); acc.push_str(s.as_ref());
acc acc