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The upper bound is usually `object`, so add a fast path and skip a potentially slow subtype check if that's the case. Also make type annotations more precise. This seems to at least speed up type checker tests, by 1-2% or so. This also potentially speeds up self-check a bit, though probably by less than 1%.
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According to mypy_primer, this change doesn't affect type check results on a corpus of open source code. ✅ |
ilevkivskyi
approved these changes
Oct 28, 2023
hauntsaninja
approved these changes
Oct 29, 2023
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The upper bound is usually
object, so add a fast path and skip a potentially slow subtype check if that's the case. Also make type annotations more precise.This seems to at least speed up type checker tests, by 1-2% or so. This also potentially speeds up self-check a bit, though probably by less than 1%.