Add explanation of the hack

CosmWasm · Aug 27, 2024 · 07515c2 · 07515c2
1 parent 9a4bebe
commit 07515c2
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/packages/cw-schema/src/lib.rs b/packages/cw-schema/src/lib.rs
@@ -153,6 +153,11 @@ impl Identifier {
         T: ?Sized,
     {
         // Don't do this at home. I'm a professional.
+        //
+        // This is a hack based on the assumption that each type has will produce a unique monomorphized function.
+        // Therefore each function has a distinct function pointer.
+        //
+        // The compiler _might_ break this assumption in the future.
         #[inline]
         fn type_id_of<T: ?Sized>() -> usize {
             type_id_of::<T> as usize