More principled solution for universal quantificatoin of non-Callable types

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
devtools

Research direction

No files, tests, or entry points are named. Start by tracing the existing ParamSpec-based handling of universal quantification over non-Callable types, then determine the design needed for principled and user-definable support; done should include a settled approach and corresponding implementation scope.

Written by the indexing model from the issue text.

Description

feature priority-2-low topic-paramspec topic-type-variables

Currently we support a type like forall T . Foo[[x: T], T] by allowing to capture a generic callable with a ParamSpec. This is arguably hacky, and may fail in unpredictable ways. Also such types are not user-definable. At some point in distant future we may want to add a support for defining such types.

Dominant language
Python
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Forks
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Avg merge
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Merged PRs (30d)
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