Adjust how ArchetypeAccess tracks mutable & immutable deps
#660
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`ArchetypeAccess` was tracking `immutable` and `mutable` separately. This means that checking is_compatible requires three checks: m+m, m+i, i+m. Instead, continue tracking `mutable` accesses, but instead of `immutable` track `immutable | mutable` as another `accessed` bit mask. This drops the comparisons to two (m+a, a+m) and turns out to be what the rest of the code base wants too, unifying various duplicated checks and loops.
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Nice catch. I dig it! |
joshuajbouw
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Oct 24, 2020
…ine#660) `ArchetypeAccess` was tracking `immutable` and `mutable` separately. This means that checking is_compatible requires three checks: m+m, m+i, i+m. Instead, continue tracking `mutable` accesses, but instead of `immutable` track `immutable | mutable` as another `accessed` bit mask. This drops the comparisons to two (m+a, a+m) and turns out to be what the rest of the code base wants too, unifying various duplicated checks and loops.
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ArchetypeAccesswas trackingimmutableandmutableseparately.This means that checking is_compatible requires three checks:
m+m, m+i, i+m.
Instead, continue tracking
mutableaccesses, but instead ofimmutabletrackimmutable | mutableas anotheraccessedbit mask.This drops the comparisons to two (m+a, a+m) and turns out to be
what the rest of the code base wants too, unifying various duplicated
checks and loops.