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Re:Making Rust a Better Fit for Cheri and Other Platforms by bestouff on Thursday April 14, 2022 @05:34AM (#31024821)
You could use TiVec[1], TiSlice[1] or TiBitset[2] (shameless plug) to have datastructures indexed by the type you need, all checked at compile type. All you need is a From/Into implementation for your chosen index type.

1: https://lib.rs/crates/typed-index-collections

2: https://lib.rs/crates/tibitset

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