From 008828f4a58e3a38b2241bf3eae536dc97efd0a2 Mon Sep 17 00:00:00 2001
From: Martin Becker <mbeckerwork@gmail.com>
Date: Fri, 31 Jan 2020 14:24:03 +0000
Subject: [PATCH 1/4] Adds get_index to map.rs

---
 src/map.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/map.rs b/src/map.rs
index eecd55a1..cd819d7a 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -1031,6 +1031,19 @@ where
         }
     }
 
+    /// Return item index
+    pub fn get_index<Q: ?Sized>(&self, key: &Q) -> Option<usize>
+    where
+        Q: Hash + Equivalent<K>,
+    {
+        if let Some((_, found)) = self.find(key) {
+            let entry = &self.core.entries[found];
+            Some(found)
+        } else {
+            None
+        }
+    }
+
     pub fn get_mut<Q: ?Sized>(&mut self, key: &Q) -> Option<&mut V>
     where
         Q: Hash + Equivalent<K>,

From 22d1c7247fc0146d14263823471879080c21ae45 Mon Sep 17 00:00:00 2001
From: Martin Becker <mbeckerwork@gmail.com>
Date: Fri, 31 Jan 2020 14:34:14 +0000
Subject: [PATCH 2/4] Renames get_index to entry_index

---
 src/map.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/map.rs b/src/map.rs
index cd819d7a..da85d921 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -1032,7 +1032,7 @@ where
     }
 
     /// Return item index
-    pub fn get_index<Q: ?Sized>(&self, key: &Q) -> Option<usize>
+    pub fn entry_index<Q: ?Sized>(&self, key: &Q) -> Option<usize>
     where
         Q: Hash + Equivalent<K>,
     {

From 29819a2ff42697f3e9804aec3195d3b9ce92791a Mon Sep 17 00:00:00 2001
From: Martin Becker <mbeckerwork@gmail.com>
Date: Mon, 10 Feb 2020 12:37:52 +0000
Subject: [PATCH 3/4] Removes superlous variable binding

---
 src/map.rs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/map.rs b/src/map.rs
index da85d921..b346b77d 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -1037,7 +1037,6 @@ where
         Q: Hash + Equivalent<K>,
     {
         if let Some((_, found)) = self.find(key) {
-            let entry = &self.core.entries[found];
             Some(found)
         } else {
             None

From 7dcdd69be9d1075046179a0b89f960274e1396e2 Mon Sep 17 00:00:00 2001
From: Martin Becker <mbeckerwork@gmail.com>
Date: Mon, 10 Feb 2020 12:38:25 +0000
Subject: [PATCH 4/4] Add entry_insex to set.rs

---
 src/set.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/set.rs b/src/set.rs
index 4b83f4b5..005e1ff5 100644
--- a/src/set.rs
+++ b/src/set.rs
@@ -327,6 +327,14 @@ where
         self.map.get_full(value).map(|(i, x, &())| (i, x))
     }
 
+    /// Return item index
+    pub fn entry_index<Q: ?Sized>(&self, value: &Q) -> Option<(usize)>
+    where
+        Q: Hash + Equivalent<T>,
+    {
+        self.map.entry_index(value)
+    }
+
     /// Adds a value to the set, replacing the existing value, if any, that is
     /// equal to the given one. Returns the replaced value.
     ///