Mercurial > repos > alg_tools / file diff

--- a/src/metaprogramming.rs	Tue Apr 08 13:30:12 2025 -0500
+++ b/src/metaprogramming.rs	Sun Apr 27 20:29:43 2025 -0500
@@ -9,21 +9,30 @@
 /// maybe_ref!(ref, V)   // ➡ &V
 /// maybe_ref!(noref, V) // ➡ V
 /// ```
-#[macro_export]
 macro_rules! maybe_ref {
-    (ref, $x:expr) => { &$x };
-    (noref, $x:expr) => { $x };
-    (ref, $x:ty) => { &$x };
-    (noref, $x:ty) => { $x };
+    (ref, $x:expr) => {
+        &$x
+    };
+    (noref, $x:expr) => {
+        $x
+    };
+    (ref, $x:ty) => {
+        &$x
+    };
+    (noref, $x:ty) => {
+        $x
+    };
 }
 
 /// Choose `a` if first argument is the literal `ref`, otherwise `b`.
-#[macro_export]
-macro_rules! ifref {
-    (noref, $a:expr, $b:expr) => { $b };
-    (ref, $a:expr, $b:expr) => { $a };
-}
-
+// macro_rules! ifref {
+//     (noref, $a:expr, $b:expr) => {
+//         $b
+//     };
+//     (ref, $a:expr, $b:expr) => {
+//         $a
+//     };
+// }
 
 /// Annotate `x` with a lifetime if the first parameter
 /// Typically to be used from another macro.
@@ -32,10 +41,14 @@
 /// maybe_ref!(ref, &'a V)    // ➡ &'a V
 /// maybe_ref!(noref, &'a V)  // ➡ V
 /// ```
-#[macro_export]
 macro_rules! maybe_lifetime {
-    (ref, $x:ty) => { $x };
-    (noref, &$lt:lifetime $x:ty) => { $x };
-    (noref, &$x:ty) => { $x };
+    (ref, $x:ty) => {
+        $x
+    };
+    (noref, &$lt:lifetime $x:ty) => {
+        $x
+    };
+    (noref, &$x:ty) => {
+        $x
+    };
 }
-