Expand description
A workaround for the ! type in stable Rust.
This approach is taken from the never_say_never crate,
reimplemented here to avoid adding a new dependency.
This module exists due to a change in never type fallback inference in the Rust 2024 edition.
This caused failures in bevy_ecs’s traits which are implemented for functions
(like System) when working with panicking closures.
Note that using this hack is not recommended in general; by doing so you are knowingly opting out of rustc’s stability guarantees. Code that compiles due to this hack may break in future versions of Rust.
Please read issue #18778 for an explanation of why Bevy has chosen to use this workaround.
Type Aliases§
- Never
- A hacky type alias for the
!(never) type.