3 ms·

This is possible in ruby too, probably in a lot of languages. I've rewritten someobject#[] plenty of times to have cleaner code.

• jksmith 9y ago
  All Wirth languages did this. Great for clarity when a specific mapping is needed. Damn I miss me some Modula 2.
  • evacchi 9y ago
    Nim is very much Oberon inspired and supports this
    • jksmith 9y ago
      Been keeping up with Nimrod for a long time, and would love to make some money with it. Just doesn't have the libs I need. If you want to see Nim get some traction, have it spit out some golang.
• one-more-minute 9y ago
  One difference in other languages is that the extra indirection will add overhead. You have to (at the very least) hop through an extra function call, and even that will become significant if you're writing an image kernel. Julia can inline through all the `getindex!` functions so you get the same performance as with a hand-coded C or Fortran array.