[Python-Dev] A Hygienic Macro System in Python? (original) (raw)

Neil Hodgson nhodgson@bigpond.net.au
Tue, 19 Mar 2002 10:48:52 +1100

Juergen Hermann:

On Mon, 18 Mar 2002 16:45:09 -0500, Guido van Rossum wrote:

>More use cases please! (Unless you give up now. :-) My major use case for (simple) macros would be AOP (aspect oriented programming), where calling a function can hurt you, especially for aspects like "do this on a development system, but not on the production system".

My use case, which I don't think is achievable with simple macros, is design-by-contract. Method preconditions and postconditions look easy, but inserting class invariant checks would be much harder.

Neil