1 files changed, 35 insertions, 0 deletions
diff --git a/notmuch/src/macros.rs b/notmuch/src/macros.rs
new file mode 100644
index 0000000..a36197b
--- /dev/null
+++ b/notmuch/src/macros.rs
@@ -0,0 +1,35 @@
+#[macro_escape]
+macro_rules! notmuch_enum {
+    (
+        $(#[$enum_attr:meta])*
+        pub enum $name:ident => $name_alias:ident {
+            $($variant:ident => $variant_alias:ident),*
+        }
+    ) => {
+        $(#[$enum_attr])*
+        pub enum $name {
+            $($variant),*
+        }
+
+        $(#[$enum_attr])*
+        pub enum $name_alias {
+            $($variant_alias),*
+        }
+
+        impl From<$name> for $name_alias {
+            fn from(t: $name) -> Self {
+                match t {
+                    $($name::$variant => $name_alias::$variant_alias),*
+                }
+            }
+        }
+
+        impl Into<$name> for $name_alias {
+            fn into(self) -> $name {
+                match self {
+                    $($name_alias::$variant_alias => $name::$variant),*
+                }
+            }
+        }
+    }
+}