view .gitlab/merge_request_templates/Default.md @ 52037:0ea323b7e3b1

rust-manifest: encode flags as `Option<NonZeroU8>`

This makes the compiler use the niche optimization for all flags: since 0 is
not a valid representation of any flags, we can use 0 as a replacement for
`None`, which reduces memory footprint and could yield a little performance
improvement over many iterations.

/assign_reviewer @mercurial.review


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