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fix(wgpu-core)!: use u32 indices for bind group layouts everywhere #3743

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Commits on May 3, 2023

  1. fix(wgpu-core)!: use u32 indices for bind group layouts everywhere

    The short description of this bug/fix pair is that, for some reason, we
    accept `u32` bind indices in the `wgpu` and `wgpu-core` APIs, narrow to
    `u8`, and then use `usize` for bind group indices in `wgpu-core`'s
    internals. This artificially narrows the range of bind group indices,
    and seems incorrect. Fix this by using `u32`s all the way until we
    convert to `usize`s. AFAIK, no supported platforms for `wgpu` have a
    `usize` whose size is less than `u32`'s.
    
    For further details, see [Mozilla's Bugzilla] and [`wgpu`'s Matrix chat].
    
    [Mozilla's Bugzilla]: https://bugzilla.mozilla.org/show_bug.cgi?id=1813705#c8
    [`wgpu`'s Matrix chat]: https://matrix.to/#/!FZyQrssSlHEZqrYcOb:matrix.org/$0wv-PJgyTTZ7LHtEhzFmAouNYa4VMY0MzVzW0n5J394?via=matrix.org&via=mozilla.org&via=kde.org
    ErichDonGubler committed May 3, 2023
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