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fix: Add tail recursion where it's possible but missing #51

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merged 4 commits into from
Feb 3, 2024

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@kitten kitten commented Feb 3, 2024

See #46

Summary

This is partially extracted from #46 and one other opportunity where tail recursion was missing. The changes have been carried over one-by-one and split up.

One change is missing (UnionAcc) since it doesn't trigger a tail recursion case in TypeScript, since it wasn't on a single type, i.e. non-mutually recursive type alias, but on several types, and hoisted too far. So, that change hasn't been carried over. The benchmarks also seem to confirm that that change isn't relevant for this PR.

(Note: In general, the benchmarks, when selection is run in isolation, give a good indicator of whether tail recursion is helping)

In some of these cases, tail recursion hasn't increased performance, but the opportunity to add them is good nonetheless.

Set of changes

  • Make _getPossibleTypeSelectionRec tail recursive
  • Make getInputObjectTypeRec tail recursive
  • Make _getVariablesRec tail recursive

kitten and others added 4 commits February 3, 2024 09:47
This doesn't seem to affect `selection` benchmarks,
but is technically more correct since tail-recursion
is possible here.

Co-authored-by: deathemperor <deathemperor@gmail.com>
Co-authored-by: HaiNNT <HaiNNT1302@gmail.com>
More correct, as per tail recursion in other
places, but `variables.ts` didn't get much
attention before

Co-authored-by: deathemperor <deathemperor@gmail.com>
Co-authored-by: HaiNNT <HaiNNT1302@gmail.com>
More correct, as per tail recursion in other
places, but `variables.ts` didn't get much
attention before
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Latest commit: 235df22

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@kitten kitten merged commit cdd6370 into main Feb 3, 2024
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@kitten kitten deleted the fix/46-tail-recursion branch February 3, 2024 10:43
@github-actions github-actions bot mentioned this pull request Feb 3, 2024
@kitten kitten added this to the Are We Fast Yet? milestone Mar 22, 2024
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2 participants