[mypyc] Optimize type(x) and x.__class__ #19691
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Using `Py_TYPE` avoids a function call. Also specialize `x.__class__` for instances of native classes -- it's treated as equivalent to `type(x)`. This is not generally possible, so only do it for native instances where we can make more assumptions.
p-sawicki
approved these changes
Aug 19, 2025
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Using
Py_TYPEavoids a function call. Also specializex.__class__for instances of native classes -- it's treated as equivalent totype(x). This is not generally possible, so only do it for native instances where we can make more assumptions.