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Expose effective class construction params #1454

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Expose effective class construction params #1454

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@hynek hynek commented Jul 31, 2025

ref #602

This is for now just private and the impact zone is limited. But I'm confident it can help us to simplify a bunch of code.

I'm especially rather unhappy with the weird entanglement of _ClassBuilder that doesn't really have a clear purpose (anymore?).

But let's talk in general first!

@hynek hynek force-pushed the params branch 3 times, most recently from 2541864 to af0f118 Compare August 1, 2025 04:56
@hynek hynek changed the title Implement _AttrsParams Expose effective class construction params Aug 1, 2025
@hynek hynek force-pushed the params branch 4 times, most recently from 0166090 to 470e2eb Compare August 5, 2025 09:04
hynek added 4 commits August 10, 2025 10:10
This reflects that the instance is NOT just the parameters as passed to
the decorator, but how the class is actually constructed.
is_slotted: bool
has_weakref_slot: bool
is_frozen: bool
is_kw_only: bool
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Can we combine these flags? We can't have force_kw_only without is_kw_only right?

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