I truly want proc macros this time

rush_macro/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "rush_macro"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+syn = { version = "2.0.100" }
+quote = { version = "1.0.40" }
+proc_macro2 = { version = "1.0.95" }

rush_macro/src/lib.rs

@@ -0,0 +1,14 @@
+pub fn add(left: u64, right: u64) -> u64 {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}