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std: Iterator.flat_map_ -> .flat_map

This commit is contained in:
Erick Tryzelaar 2013-08-09 20:20:05 -07:00
parent 24d2cd0ef4
commit 60c2661684
1 changed files with 4 additions and 5 deletions
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9
src/libstd/iterator.rs
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@ -262,7 +262,7 @@ pub trait Iterator<A> {
/// ~~~ {.rust}
/// let xs = [2u, 3];
/// let ys = [0u, 1, 0, 1, 2];
/// let mut it = xs.iter().flat_map_(|&x| count(0u, 1).take(x));
/// let mut it = xs.iter().flat_map(|&x| count(0u, 1).take(x));
/// // Check that `it` has the same elements as `ys`
/// let mut i = 0;
/// for x: uint in it {
@ -270,9 +270,8 @@ pub trait Iterator<A> {
/// i += 1;
/// }
/// ~~~
// FIXME: #5898: should be called `flat_map`
#[inline]
fn flat_map_<'r, B, U: Iterator<B>>(self, f: &'r fn(A) -> U)
fn flat_map<'r, B, U: Iterator<B>>(self, f: &'r fn(A) -> U)
-> FlatMap<'r, A, Self, U> {
FlatMap{iter: self, f: f, frontiter: None, backiter: None }
}
@ -1644,7 +1643,7 @@ mod tests {
fn test_iterator_flat_map() {
let xs = [0u, 3, 6];
let ys = [0u, 1, 2, 3, 4, 5, 6, 7, 8];
let mut it = xs.iter().flat_map_(|&x| count(x, 1).take(3));
let mut it = xs.iter().flat_map(|&x| count(x, 1).take(3));
let mut i = 0;
for x in it {
assert_eq!(x, ys[i]);
@ -1937,7 +1936,7 @@ mod tests {
fn test_double_ended_flat_map() {
let u = [0u,1];
let v = [5,6,7,8];
let mut it = u.iter().flat_map_(|x| v.slice(*x, v.len()).iter());
let mut it = u.iter().flat_map(|x| v.slice(*x, v.len()).iter());
assert_eq!(it.next_back().unwrap(), &8);
assert_eq!(it.next().unwrap(), &5);
assert_eq!(it.next_back().unwrap(), &7);