Implement From<&HeaderMap> for http::HeaderMap (#3230)

* Add From impl for header map references * Add From impl for header map references * Remove Into<HeaderMap> via http::HeaderMap * fix changelog --------- Co-authored-by: SleeplessOne1917 <insomnia-void@protonmail.com> Co-authored-by: Rob Ede <robjtede@icloud.com>
actix · Feb 1, 2024 · ae7736f · ae7736f
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diff --git a/actix-http/CHANGES.md b/actix-http/CHANGES.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Added
+
+- Implement `From<&HeaderMap>` for `http::HeaderMap`.
+
 ## 3.5.1
 
 ### Fixed

diff --git a/actix-http/src/header/map.rs b/actix-http/src/header/map.rs
@@ -650,6 +650,13 @@ impl From<HeaderMap> for http::HeaderMap {
     }
 }
 
+/// Convert our `&HeaderMap` to a `http::HeaderMap`.
+impl From<&HeaderMap> for http::HeaderMap {
+    fn from(map: &HeaderMap) -> Self {
+        map.to_owned().into()
+    }
+}
+
 /// Iterator over removed, owned values with the same associated name.
 ///
 /// Returned from methods that remove or replace items. See [`HeaderMap::insert`]