- No metaprogramming: send, method_missing, define_method (dynamic)
- No threads: Thread, Mutex (Fiber is supported)
- No encoding: assumes UTF-8/ASCII
- No general lambda calculus: deeply nested -> x { } with [] calls
Assuming UTF-8/ASCII isn’t, IMO, a huge limitation, but some of the others likely are, for quite a few programs. Removing them also will require serious work, I think.
Comments
Limitations
- No eval: eval, instance_eval, class_eval
- No metaprogramming: send, method_missing, define_method (dynamic)
- No threads: Thread, Mutex (Fiber is supported)
- No encoding: assumes UTF-8/ASCII
- No general lambda calculus: deeply nested -> x { } with [] calls
Assuming UTF-8/ASCII isn’t, IMO, a huge limitation, but some of the others likely are, for quite a few programs. Removing them also will require serious work, I think.
This removes a large portion of the magic of Ruby.
I do use class_eval quite a bit but I could pivot to precomputed script generators for those use cases going forward