1 files changed, 13 insertions, 0 deletions
diff --git a/src/util.rs b/src/util.rs
new file mode 100644
index 0000000..78d2cd4
--- /dev/null
+++ b/src/util.rs
@@ -0,0 +1,13 @@
+macro_rules! trait_alias {
+    (
+        $(#[$attr: meta])*
+        $visibility: vis $name: ident$(<$($type_param: ident),*>)?$(: $first_bound: tt $(+ $bound: tt)*)?;
+    ) => {
+        $(#[$attr])*
+        $visibility trait $name $(<$($type_param),*>)? $(: $first_bound $(+ $bound)*)? {}
+
+        impl<T: $($first_bound $(+ $bound)*)?, $($($type_param),*)?> $name$(<$($type_param),*>)? for T {}
+    };
+}
+
+pub(crate) use trait_alias;