feat: improve macro error messages

1 files changed, 23 insertions, 0 deletions

diff --git a/macros/src/util/mod.rs b/macros/src/util/mod.rs
index 0705853..d3edb67 100644
--- a/macros/src/util/mod.rs
+++ b/macros/src/util/mod.rs
@@ -1,4 +1,27 @@
+pub mod error;
 pub mod item_impl;
 pub mod iterator_ext;
 pub mod string;
 pub mod syn_path;
+
+macro_rules! to_option {
+    ($($tokens: tt)+) => {
+        Some($($tokens)+)
+    };
+
+    () => {
+        None
+    };
+}
+
+macro_rules! or {
+    (($($tokens: tt)+) else ($($default: tt)*)) => {
+        $($tokens)*
+    };
+
+    (() else ($($default: tt)*)) => {
+        $($default)*
+    };
+}
+
+pub(crate) use {or, to_option};