Derive Debug for everything. about wgpu

[nuew]

The API Guidelines do suggest that every type should implement Debug, even if it doesn't give the state of all internal fields: https://rust-lang-nursery.github.io/api-guidelines/debuggability.html

[kvark]

It does indeed appear to be addressed by #72, which takes a slightly different route (serialize instead of debug). For structures with trivially derived Debug, I don't mind to have it.

[kvark]

@nuew thank you, that is convincing!

[arashikou]

Most of the public types now #[derive(Debug)]. (#216) There are a few exceptions, due to types that transitively depend on types from external crates that do not implement Debug. The plan (#218) is to submit PRs to get those types to implement Debug so we can in turn #[derive(Debug)] on wgpu's remaining types.

[arashikou]

Great news! It looks like @BourgondAries already did most of this work about a week ago in gfx-rs/gfx@b576335 and gfx-rs/gfx@5e9803d. So many of our types can just derive Debug once gfx-rs does another release and wgpu picks it up.

The backend instances are the sole exceptions. I'll continue tracking through the type chains to see how best to enable them to implement Debug.

[kvark]

@arashikou here we come - gfx-rs/gfx#2817

[kvark]

@arashikou could you update to https://crates.io/crates/gfx-hal/0.2.1 and see if adding Debug here becomes trivial?

[arashikou]

For most types, yes. Hub still depends on some types in the backends that aren't covered by @BourgondAries's changes, which I'm working on making implement Debug.