docs autoderef-full-lval

Author: Kivooeo

tests/ui/autoref-autoderef/autoderef-box-no-add.rs

@@ -1,3 +1,10 @@
+//! Tests that auto-dereferencing does not allow addition of `Box<isize>` values.
+//!
+//! This test ensures that `Box<isize>` fields in structs (`Clam` and `Fish`) are not
+//! automatically dereferenced to `isize` during addition operations, as `Box<isize>`
+//! does not implement the `Add` trait. Attempts to add `Box<isize>` values should
+//! result in a compile error.
+
 struct Clam {
     x: Box<isize>,
     y: Box<isize>,