Merge pull request #134 from sunshowers/asref

add AsRef<Index> impl for Index
proptest-rs · Jul 31, 2023 · 4a28bef · 4a28bef
2 parents 8586d8d + 90fb08c
commit 4a28bef
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/proptest/src/sample.rs b/proptest/src/sample.rs
@@ -245,6 +245,14 @@ impl Index {
     }
 }
 
+// This impl is handy for generic code over any type that exposes an internal `Index` -- with it,
+// a plain `Index` can be passed in as well.
+impl AsRef<Index> for Index {
+    fn as_ref(&self) -> &Index {
+        self
+    }
+}
+
 mapfn! {
     [] fn UsizeToIndex[](raw: usize) -> Index {
         Index(raw)