docs: Add more examples on more bad inputs

README.md

@@ -134,6 +134,27 @@ assert_eq!(format!("{:?}", Base(Wrapper("bar"))), "Wrapper(\"bar\")");
 
 <details><summary><h3>Invalid inputs</h3></summary>
 
+```rust
+#[derive(DelegateDisplay, Debug)]
+#[dboth(delegate_to(String))] // `delegate_to` is not supported on enums
+enum SomeEnum {
+  Foo(Arc<String>)
+}
+```
+
+```rust
+#[derive(delegate_display::DelegateDisplay)]
+#[ddisplay(base_bounds, bounds(T: Display))] // `base_bounds` and `bounds` are mutually exclusive
+struct Generic<T>(T);
+```
+
+```rust
+#[derive(delegate_display::DelegateDisplay)]
+#[ddisplay(base_bounds)]
+#[ddisplay(base_bounds)] // `dbodh` and `ddisplay` can be mixed, but the same option can't be used twice
+struct Foo<T>(T);
+```
+
 ```rust
 #[derive(delegate_display::DelegateDebug)]
 struct TooManyFields1 {
@@ -160,10 +181,7 @@ enum SomeEnum {
 
 ```rust
 #[derive(delegate_display::DelegateDebug)]
-#[ddebug(delegate_to(String))] // `delegate_to` is not supported on enums
-enum SomeEnum {
-  Foo(std::sync::Arc<String>)
-}
+union Foo { bar: u8 } // Unions are not supported
 ```
 
 </details>

examples/variations.rs

@@ -122,6 +122,7 @@ mod test {
         #[test]
         fn newtype() {
             #[derive(DelegateDebug, DelegateDisplay)]
+            #[repr(transparent)]
             struct Newtype(String);
 
             const SRC: &'static str = "Lick the frog";

src/lib.rs

@@ -154,6 +154,19 @@
 //! ```
 //!
 //! ```compile_fail
+//! #[derive(delegate_display::DelegateDisplay)]
+//! #[ddisplay(base_bounds, bounds(T: Display))] // `base_bounds` and `bounds` are mutually exclusive
+//! struct Generic<T>(T);
+//! ```
+//!
+//! ```compile_fail
+//! #[derive(delegate_display::DelegateDisplay)]
+//! #[ddisplay(base_bounds)]
+//! #[ddisplay(base_bounds)] // `dbodh` and `ddisplay` can be mixed, but the same option can't be used twice
+//! struct Foo<T>(T);
+//! ```
+//!
+//! ```compile_fail
 //! #[derive(delegate_display::DelegateDebug)]
 //! struct TooManyFields1 {
 //!   foo: u8,
@@ -177,6 +190,11 @@
 //! }
 //! ```
 //!
+//! ```compile_fail
+//! #[derive(delegate_display::DelegateDebug)]
+//! union Foo { bar: u8 } // Unions are not supported
+//! ```
+//!
 //! </details>
 
 #![deny(clippy::correctness, clippy::suspicious)]