Fix validation for api-* mutual exclusivity

godot/src/lib.rs

@@ -151,18 +151,27 @@ compile_error!("The feature `double-precision` currently requires `api-custom` d
 #[cfg(feature = "custom-godot")]
 __deprecated::emit_deprecated_warning!(feature_custom_godot);
 
+#[rustfmt::skip]
 const fn _validate_features() {
     let mut count = 0;
-
-    if cfg!(feature = "api-4-0") {
-        count += 1;
-    }
-    if cfg!(feature = "api-4-1") {
-        count += 1;
-    }
-    if cfg!(feature = "api-custom") {
-        count += 1;
-    }
+    if cfg!(feature = "api-custom") { count += 1; }
+
+    // [version-sync] [[
+    //  [line] \tif cfg!(feature = "api-$kebabVersion") { count += 1; }
+    if cfg!(feature = "api-4-0") { count += 1; }
+    if cfg!(feature = "api-4-0-1") { count += 1; }
+    if cfg!(feature = "api-4-0-2") { count += 1; }
+    if cfg!(feature = "api-4-0-3") { count += 1; }
+    if cfg!(feature = "api-4-0-4") { count += 1; }
+    if cfg!(feature = "api-4-1") { count += 1; }
+    if cfg!(feature = "api-4-1-1") { count += 1; }
+    if cfg!(feature = "api-4-1-2") { count += 1; }
+    if cfg!(feature = "api-4-1-3") { count += 1; }
+    if cfg!(feature = "api-4-1-4") { count += 1; }
+    if cfg!(feature = "api-4-2") { count += 1; }
+    if cfg!(feature = "api-4-2-1") { count += 1; }
+    if cfg!(feature = "api-4-2-2") { count += 1; }
+    // ]]
 
     assert!(count <= 1, "at most one `api-*` feature can be enabled");
 }