The C3 Programming Language

Re:The C3 Programming Language by cb321 on Saturday January 03, 2026 @12:45PM (#46479408)

I see from `test/test_suite/compile_time_introspection/paramsof.c3t` that there is a way to get names & types of function parameters [1]. The language also seems to support default values { e.g. `int foo(int a, int b = 2) {...}` } and even call with keyword arguments/named parameters [2], but I couldn't find any `defaultof` or similar thing in the code. Does anyone know if this is just an oversight / temporary omission?

[1] https://github.com/c3lang/c3c/blob/master/test/test_suite/co...

[2] https://c3-lang.org/language-fundamentals/functions/

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Re:The C3 Programming Language by Windeycastle on Saturday January 03, 2026 @02:23PM (#46480473)

I don't think it is available no, and it's the first time I heard about such an idea. Thinking on it, this would allow such cursed code (love that :D). I'll put it up for discussion in the Discord as I'm interested in hearing whether `.defaultof` is a good idea or not.

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Re:The C3 Programming Language by cb321 on Saturday January 03, 2026 @04:35PM (#46481865)

One application of such a feature would be something like a "cligen.c3" (like the Nim https://github.com/c-blake/cligen or its /python/cg.py port or etc.). Mostly it just seems a more complete signature extraction, though. Any other kind of documentation system might benefit.

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