bevy/crates/bevy_reflect_compile_fail_tests
Gino Valente daa8bf20df
Fix nested generics in Reflect derive (#10791)
# Objective

> Issue raised on
[Discord](https://discord.com/channels/691052431525675048/1002362493634629796/1179182488787103776)

Currently the following code fails due to a missing `TypePath` bound:

```rust
#[derive(Reflect)] struct Foo<T>(T);
#[derive(Reflect)] struct Bar<T>(Foo<T>);
#[derive(Reflect)] struct Baz<T>(Bar<Foo<T>>);
```

## Solution

Add `TypePath` to the per-field bounds instead of _just_ the generic
type parameter bounds.

### Related Work

It should be noted that #9046 would help make these kinds of issues
easier to work around and/or avoid entirely.

---

## Changelog

- Fixes missing `TypePath` requirement when deriving `Reflect` on nested
generics
2023-11-29 01:46:09 +00:00
..
src bevy_reflect: Add compile fail tests for bevy_reflect (#7041) 2023-01-02 21:07:33 +00:00
tests Fix nested generics in Reflect derive (#10791) 2023-11-29 01:46:09 +00:00
Cargo.toml bevy_reflect: Add compile fail tests for bevy_reflect (#7041) 2023-01-02 21:07:33 +00:00
README.md bevy_reflect: Add compile fail tests for bevy_reflect (#7041) 2023-01-02 21:07:33 +00:00

Compile fail tests for bevy_reflect

This crate is separate from bevy_reflect and not part of the Bevy workspace in order to not fail crater tests for Bevy. The tests assert on the exact compiler errors and can easily fail for new Rust versions due to updated compiler errors (e.g. changes in spans).

The CI workflow executes these tests on the stable rust toolchain (see tools/ci).