1 files changed, 0 insertions, 192 deletions
diff --git a/compiler/rustc_data_structures/src/vec_map.rs b/compiler/rustc_data_structures/src/vec_map.rs
deleted file mode 100644
index d1a99bcaeb7..00000000000
--- a/compiler/rustc_data_structures/src/vec_map.rs
+++ /dev/null
@@ -1,192 +0,0 @@
-use std::borrow::Borrow;
-use std::fmt::Debug;
-use std::slice::Iter;
-use std::vec::IntoIter;
-
-use crate::stable_hasher::{HashStable, StableHasher};
-
-/// A map type implemented as a vector of pairs `K` (key) and `V` (value).
-/// It currently provides a subset of all the map operations, the rest could be added as needed.
-#[derive(Clone, Encodable, Decodable, Debug)]
-pub struct VecMap<K, V>(Vec<(K, V)>);
-
-impl<K, V> VecMap<K, V>
-where
-    K: Debug + PartialEq,
-    V: Debug,
-{
-    pub fn new() -> Self {
-        VecMap(Default::default())
-    }
-
-    /// Sets the value of the entry, and returns the entry's old value.
-    pub fn insert(&mut self, k: K, v: V) -> Option<V> {
-        if let Some(elem) = self.0.iter_mut().find(|(key, _)| *key == k) {
-            Some(std::mem::replace(&mut elem.1, v))
-        } else {
-            self.0.push((k, v));
-            None
-        }
-    }
-
-    /// Removes the entry from the map and returns the removed value
-    pub fn remove(&mut self, k: &K) -> Option<V> {
-        self.0.iter().position(|(k2, _)| k2 == k).map(|pos| self.0.remove(pos).1)
-    }
-
-    /// Gets a reference to the value in the entry.
-    pub fn get<Q: ?Sized>(&self, k: &Q) -> Option<&V>
-    where
-        K: Borrow<Q>,
-        Q: Eq,
-    {
-        self.0.iter().find(|(key, _)| k == key.borrow()).map(|elem| &elem.1)
-    }
-
-    /// Gets a mutable reference to the value in the entry.
-    pub fn get_mut<Q: ?Sized>(&mut self, k: &Q) -> Option<&mut V>
-    where
-        K: Borrow<Q>,
-        Q: Eq,
-    {
-        self.0.iter_mut().find(|(key, _)| k == key.borrow()).map(|elem| &mut elem.1)
-    }
-
-    /// Returns the any value corresponding to the supplied predicate filter.
-    ///
-    /// The supplied predicate will be applied to each (key, value) pair and it will return a
-    /// reference to the values where the predicate returns `true`.
-    pub fn any_value_matching(&self, mut predicate: impl FnMut(&(K, V)) -> bool) -> Option<&V> {
-        self.0.iter().find(|kv| predicate(kv)).map(|elem| &elem.1)
-    }
-
-    /// Returns the value corresponding to the supplied predicate filter. It crashes if there's
-    /// more than one matching element.
-    ///
-    /// The supplied predicate will be applied to each (key, value) pair and it will return a
-    /// reference to the value where the predicate returns `true`.
-    pub fn get_value_matching(&self, mut predicate: impl FnMut(&(K, V)) -> bool) -> Option<&V> {
-        let mut filter = self.0.iter().filter(|kv| predicate(kv));
-        let (_, value) = filter.next()?;
-        // This should return just one element, otherwise it's a bug
-        assert!(
-            filter.next().is_none(),
-            "Collection {self:#?} should have just one matching element"
-        );
-        Some(value)
-    }
-
-    /// Returns `true` if the map contains a value for the specified key.
-    ///
-    /// The key may be any borrowed form of the map's key type,
-    /// [`Eq`] on the borrowed form *must* match those for
-    /// the key type.
-    pub fn contains_key<Q: ?Sized>(&self, k: &Q) -> bool
-    where
-        K: Borrow<Q>,
-        Q: Eq,
-    {
-        self.get(k).is_some()
-    }
-
-    /// Returns `true` if the map contains no elements.
-    pub fn is_empty(&self) -> bool {
-        self.0.is_empty()
-    }
-
-    pub fn iter(&self) -> Iter<'_, (K, V)> {
-        self.into_iter()
-    }
-
-    pub fn iter_mut(&mut self) -> impl Iterator<Item = (&K, &mut V)> {
-        self.into_iter()
-    }
-
-    pub fn retain(&mut self, f: impl Fn(&(K, V)) -> bool) {
-        self.0.retain(f)
-    }
-}
-
-impl<K, V> Default for VecMap<K, V> {
-    #[inline]
-    fn default() -> Self {
-        Self(Default::default())
-    }
-}
-
-impl<K, V> From<Vec<(K, V)>> for VecMap<K, V> {
-    fn from(vec: Vec<(K, V)>) -> Self {
-        Self(vec)
-    }
-}
-
-impl<K, V> Into<Vec<(K, V)>> for VecMap<K, V> {
-    fn into(self) -> Vec<(K, V)> {
-        self.0
-    }
-}
-
-impl<K, V> FromIterator<(K, V)> for VecMap<K, V> {
-    fn from_iter<I: IntoIterator<Item = (K, V)>>(iter: I) -> Self {
-        Self(iter.into_iter().collect())
-    }
-}
-
-impl<'a, K, V> IntoIterator for &'a VecMap<K, V> {
-    type Item = &'a (K, V);
-    type IntoIter = Iter<'a, (K, V)>;
-
-    #[inline]
-    fn into_iter(self) -> Self::IntoIter {
-        self.0.iter()
-    }
-}
-
-impl<'a, K: 'a, V: 'a> IntoIterator for &'a mut VecMap<K, V> {
-    type Item = (&'a K, &'a mut V);
-    type IntoIter = impl Iterator<Item = Self::Item>;
-
-    #[inline]
-    fn into_iter(self) -> Self::IntoIter {
-        self.0.iter_mut().map(|(k, v)| (&*k, v))
-    }
-}
-
-impl<K, V> IntoIterator for VecMap<K, V> {
-    type Item = (K, V);
-    type IntoIter = IntoIter<(K, V)>;
-
-    #[inline]
-    fn into_iter(self) -> Self::IntoIter {
-        self.0.into_iter()
-    }
-}
-
-impl<K: PartialEq + Debug, V: Debug> Extend<(K, V)> for VecMap<K, V> {
-    fn extend<I: IntoIterator<Item = (K, V)>>(&mut self, iter: I) {
-        for (k, v) in iter {
-            self.insert(k, v);
-        }
-    }
-
-    fn extend_one(&mut self, (k, v): (K, V)) {
-        self.insert(k, v);
-    }
-
-    fn extend_reserve(&mut self, additional: usize) {
-        self.0.extend_reserve(additional);
-    }
-}
-
-impl<K, V, CTX> HashStable<CTX> for VecMap<K, V>
-where
-    K: HashStable<CTX> + Eq,
-    V: HashStable<CTX>,
-{
-    fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) {
-        self.0.hash_stable(hcx, hasher)
-    }
-}
-
-#[cfg(test)]
-mod tests;