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add outlives annotations to BTreeMap #51914

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Merged
merged 1 commit into from
Jul 3, 2018
Merged

add outlives annotations to BTreeMap #51914

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17 changes: 10 additions & 7 deletions src/liballoc/collections/btree/map.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -149,12 +149,11 @@ unsafe impl<#[may_dangle] K, #[may_dangle] V> Drop for BTreeMap<K, V> {
#[stable(feature = "rust1", since = "1.0.0")]
impl<K: Clone, V: Clone> Clone for BTreeMap<K, V> {
fn clone(&self) -> BTreeMap<K, V> {
fn clone_subtree<K: Clone, V: Clone>(node: node::NodeRef<marker::Immut,
K,
V,
marker::LeafOrInternal>)
-> BTreeMap<K, V> {

fn clone_subtree<'a, K: Clone, V: Clone>(
node: node::NodeRef<marker::Immut<'a>, K, V, marker::LeafOrInternal>
) -> BTreeMap<K, V>
where K: 'a, V: 'a,
{
match node.force() {
Leaf(leaf) => {
let mut out_tree = BTreeMap {
Expand Down Expand Up @@ -1080,7 +1079,11 @@ impl<K: Ord, V> BTreeMap<K, V> {

/// Calculates the number of elements if it is incorrect.
fn recalc_length(&mut self) {
fn dfs<K, V>(node: NodeRef<marker::Immut, K, V, marker::LeafOrInternal>) -> usize {
fn dfs<'a, K, V>(
node: NodeRef<marker::Immut<'a>, K, V, marker::LeafOrInternal>
) -> usize
where K: 'a, V: 'a
{
let mut res = node.len();

if let Internal(node) = node.force() {
Expand Down