/// See its documentation for more.
///
/// [`into_keys`]: BTreeMap::into_keys
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub struct IntoKeys<K, V> {
inner: IntoIter<K, V>,
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K: fmt::Debug, V> fmt::Debug for IntoKeys<K, V> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_list().entries(self.inner.iter().map(|(key, _)| key)).finish()
/// See its documentation for more.
///
/// [`into_values`]: BTreeMap::into_values
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub struct IntoValues<K, V> {
inner: IntoIter<K, V>,
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V: fmt::Debug> fmt::Debug for IntoValues<K, V> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_list().entries(self.inner.iter().map(|(_, val)| val)).finish()
/// # Examples
///
/// ```
- /// #![feature(map_into_keys_values)]
/// use std::collections::BTreeMap;
///
/// let mut a = BTreeMap::new();
/// assert_eq!(keys, [1, 2]);
/// ```
#[inline]
- #[unstable(feature = "map_into_keys_values", issue = "75294")]
+ #[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub fn into_keys(self) -> IntoKeys<K, V> {
IntoKeys { inner: self.into_iter() }
}
/// # Examples
///
/// ```
- /// #![feature(map_into_keys_values)]
/// use std::collections::BTreeMap;
///
/// let mut a = BTreeMap::new();
/// assert_eq!(values, ["hello", "goodbye"]);
/// ```
#[inline]
- #[unstable(feature = "map_into_keys_values", issue = "75294")]
+ #[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub fn into_values(self) -> IntoValues<K, V> {
IntoValues { inner: self.into_iter() }
}
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> Iterator for IntoKeys<K, V> {
type Item = K;
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> DoubleEndedIterator for IntoKeys<K, V> {
fn next_back(&mut self) -> Option<K> {
self.inner.next_back().map(|(k, _)| k)
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> ExactSizeIterator for IntoKeys<K, V> {
fn len(&self) -> usize {
self.inner.len()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> FusedIterator for IntoKeys<K, V> {}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> Iterator for IntoValues<K, V> {
type Item = V;
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> DoubleEndedIterator for IntoValues<K, V> {
fn next_back(&mut self) -> Option<V> {
self.inner.next_back().map(|(_, v)| v)
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> ExactSizeIterator for IntoValues<K, V> {
fn len(&self) -> usize {
self.inner.len()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> FusedIterator for IntoValues<K, V> {}
#[stable(feature = "btree_range", since = "1.17.0")]
/// # Examples
///
/// ```
- /// #![feature(map_into_keys_values)]
/// use std::collections::HashMap;
///
/// let mut map = HashMap::new();
/// let vec: Vec<&str> = map.into_keys().collect();
/// ```
#[inline]
- #[unstable(feature = "map_into_keys_values", issue = "75294")]
+ #[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub fn into_keys(self) -> IntoKeys<K, V> {
IntoKeys { inner: self.into_iter() }
}
/// # Examples
///
/// ```
- /// #![feature(map_into_keys_values)]
/// use std::collections::HashMap;
///
/// let mut map = HashMap::new();
/// let vec: Vec<i32> = map.into_values().collect();
/// ```
#[inline]
- #[unstable(feature = "map_into_keys_values", issue = "75294")]
+ #[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub fn into_values(self) -> IntoValues<K, V> {
IntoValues { inner: self.into_iter() }
}
/// # Example
///
/// ```
-/// #![feature(map_into_keys_values)]
-///
/// use std::collections::HashMap;
///
/// let mut map = HashMap::new();
/// map.insert("a", 1);
/// let iter_keys = map.into_keys();
/// ```
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub struct IntoKeys<K, V> {
inner: IntoIter<K, V>,
}
/// # Example
///
/// ```
-/// #![feature(map_into_keys_values)]
-///
/// use std::collections::HashMap;
///
/// let mut map = HashMap::new();
/// map.insert("a", 1);
/// let iter_keys = map.into_values();
/// ```
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
pub struct IntoValues<K, V> {
inner: IntoIter<K, V>,
}
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> Iterator for IntoKeys<K, V> {
type Item = K;
self.inner.size_hint()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> ExactSizeIterator for IntoKeys<K, V> {
#[inline]
fn len(&self) -> usize {
self.inner.len()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> FusedIterator for IntoKeys<K, V> {}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K: Debug, V> fmt::Debug for IntoKeys<K, V> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_list().entries(self.inner.iter().map(|(k, _)| k)).finish()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> Iterator for IntoValues<K, V> {
type Item = V;
self.inner.size_hint()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> ExactSizeIterator for IntoValues<K, V> {
#[inline]
fn len(&self) -> usize {
self.inner.len()
}
}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V> FusedIterator for IntoValues<K, V> {}
-#[unstable(feature = "map_into_keys_values", issue = "75294")]
+#[stable(feature = "map_into_keys_values", since = "1.54.0")]
impl<K, V: Debug> fmt::Debug for IntoValues<K, V> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_list().entries(self.inner.iter().map(|(_, v)| v)).finish()