A decorator is run at compile time and it’s output replaces the decorated functi... | Hacker News

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		dec0dedab0de on Feb 3, 2025 \| parent \| context \| favorite \| on: Decorator JITs: Python as a DSL A decorator is run at compile time and it’s output replaces the decorated function. The new replaced function could then have a jit at runtime. I don’t know if that’s what’s happening, but using a decorator doesn’t mean it cant also be a jit.

masklinn on Feb 3, 2025 [–]

FWIW numba at least supports both cases depending how the decorator is used:

- if you just `@jit`, it will create a megamorphic function with specialisations generated at runtime

- if you pass a signature to `@jit`, it will compile a monomorphic function during loading

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