From 1ad51cb36690cf7d7ed9eb5929d33f1c32d4262a Mon Sep 17 00:00:00 2001
From: Andrew <andrew@digerati.co.nz>
Date: Wed, 24 May 2023 10:47:06 +1200
Subject: [PATCH] Add par_iter_mut shim

---
 src/rayon.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/rayon.rs b/src/rayon.rs
index ae1914c2b..210106684 100644
--- a/src/rayon.rs
+++ b/src/rayon.rs
@@ -26,6 +26,12 @@ pub trait IntoParallelRefIterator<'data> {
     fn par_iter(&'data self) -> Self::Iter;
 }
 
+pub trait IntoParallelRefMutIterator<'data> {
+    type Iter: ParallelIterator<Item = Self::Item>;
+    type Item: Send + 'data;
+    fn par_iter_mut(&'data mut self) -> Self::Iter;
+}
+
 impl<I: IntoIterator> IntoParallelIterator for I
 where
     I::Item: Send,
@@ -50,6 +56,18 @@ where
     }
 }
 
+impl<'data, I: 'data + ?Sized> IntoParallelRefMutIterator<'data> for I
+where
+    &'data mut I: IntoParallelIterator,
+{
+    type Iter = <&'data mut I as IntoParallelIterator>::Iter;
+    type Item = <&'data mut I as IntoParallelIterator>::Item;
+
+    fn par_iter_mut(&'data mut self) -> Self::Iter {
+        self.into_par_iter()
+    }
+}
+
 impl<I: Iterator> ParallelIterator for I {}
 
 #[allow(dead_code)]