Suggestion for deriving PartialEq on a type containing dyn Fn() is very invalid #135989
Description
Code
use std::rc::Rc; #[derive(PartialEq)] pub struct Function { callback: Rc<dyn Fn()>, }Current output
error[E0369]: binary operation `==` cannot be applied to type `Rc<dyn Fn()>` --> src/lib.rs:5:5 | 3 | #[derive(PartialEq)] | --------- in this derive macro expansion 4 | pub struct Function { 5 | callback: Rc<dyn Fn()>, | ^^^^^^^^^^^^^^^^^^^^^^ | = note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info) help: use parentheses to call these | 5 | (callback: Rc<dyn Fn()>)(), | + +++Desired output
error[E0369]: binary operation `==` cannot be applied to type `Rc<dyn Fn()>` --> src/lib.rs:5:5 | 3 | #[derive(PartialEq)] | --------- in this derive macro expansion 4 | pub struct Function { 5 | callback: Rc<dyn Fn()>, | ^^^^^^^^^^^^^^^^^^^^^^ | = note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info)Rationale and extra context
No response
Other cases
Rust Version
1.86.0-nightly (2025-01-23 99768c80a1c094a5cfc3)Anything else?
@rustbot label D-incorrect D-invalid-suggestion