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Metaclasses
See original GitHub issueHi.
running a grep in __metaclass__ with many usages in the new typing module I was for second thinking that you built metaclass support in(?) - but I got no success using them, e.g. __new__ is never called, no matter if I try py2 or py3 syntax. Also in the compiler for the ClassDef I see no code which would parse a metaclass=… statement.
=> I put this in as an enhancement request, thinking that maybe its not even very hard to support, at least to call their __new__ and assign the result of it, instead of calling the __class__ function to create a new js “class” ?
Issue Analytics
- State:
- Created 7 years ago
- Comments:9 (9 by maintainers)
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Hi,
I must admit that it sounds like an esoteric use case and hard to do - and ‘importance’ is always very subjective. In my specific case its the fact that I like to configure complex applications via nested classes, since this is a very readable format, almost like a DSL, exportable trivially to json but with all the features of cross referencing and most of all inheritance - and the python compiler already giving a lot of configuration errors. For this metaclasses are ideal to hook in some consistency checks and a lot of convenience shorthand features - don’t want to go too deep into that reasoning, since its really very subjective and your prios are Transcrypts prios, not mine.
=> Since I said it might be not so hard I’ll have a try to send you a PR when I have some time. As said to not bloat the code only the new would be enough, in order to modify the attributes and base classes in user space.
Hi Gunther
Politically incorrect? I must have missed something… Probably it’s because I don’t watch the news too often, it just makes me sad.
It was a pleasure to cooperate with you and others on Transcrypt! Currently I am a bit tied up in a medical research project, but in the second half of januari I hope to be able to free time for TS again.
I wish you and your familiy a happy christmas and new year. We’ve come a long way in one year. I am contemplating ways to generate some more publicity for Transcrypt.
All the best. Jacques