[metal] chore: Prepare for migrating to objc2-metal
#7631
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A lot of Metal types are prefixed with MTL, which makes it quite clear where they're coming from. This means that we don't loose any clarity if we import them instead of having them prefixed with `metal::`. This will make it easier to migrate to `objc2-metal` since that crate is named differently from the `metal` crate.
The `metal` crate is currently unsound regarding unknown/future enum variants, see gfx-rs/metal-rs#209 and rust-lang/rfcs#3803. `objc2-metal` fixes this by emitting C enums as a newtype + constants for each variant, but that prevents us from importing the variants/constants. So this commit converts to a pattern that works with that in preparation for the migration.
madsmtm
changed the title
objc2-metalobjc2-metal
cwfitzgerald
approved these changes
Apr 25, 2025
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Description
There are a few things that make the diff in #5641 larger than it needs to be. This PR intends to reduce that by making a few syntactic changes to the codebase.
In short, the changes are to import
metaltypes instead of prefixing withmetal::, and to avoid enum variant imports, see each commit for details.This should both make the above PR easier to review, and make it less effort for me to keep up to date.
Testing
Run
cargo run --bin wgpu-examples -- cubeon macOS.Squash or Rebase?
Can be rebased, but either is fine.
Checklist
cargo fmt.taplo format.cargo clippy --tests. If applicable, add:--target wasm32-unknown-unknowncargo xtask testto run tests.CHANGELOG.mdentry.