Implement Deref and DerefMut for built-in extractors (#1922)

2026-08-29 00:00:18 +02:00 · 2023-04-10 07:18:35 +00:00
parent 43b2d52403
commit 352cf9a266
17 changed files with 67 additions and 112 deletions
@@ -171,3 +171,44 @@ macro_rules! all_the_tuples_no_last_special_case {
        $name!(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16);
    };
 }
+
+/// Private API.
+#[doc(hidden)]
+#[macro_export]
+macro_rules! __impl_deref {
+    ($ident:ident) => {
+        impl<T> std::ops::Deref for $ident<T> {
+            type Target = T;
+
+            #[inline]
+            fn deref(&self) -> &Self::Target {
+                &self.0
+            }
+        }
+
+        impl<T> std::ops::DerefMut for $ident<T> {
+            #[inline]
+            fn deref_mut(&mut self) -> &mut Self::Target {
+                &mut self.0
+            }
+        }
+    };
+
+    ($ident:ident: $ty:ty) => {
+        impl std::ops::Deref for $ident {
+            type Target = $ty;
+
+            #[inline]
+            fn deref(&self) -> &Self::Target {
+                &self.0
+            }
+        }
+
+        impl std::ops::DerefMut for $ident {
+            #[inline]
+            fn deref_mut(&mut self) -> &mut Self::Target {
+                &mut self.0
+            }
+        }
+    };
+}