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Thanks. Malleability and redefining classes in running code sound like advantages. Can you point to a situation where you might want to redefine classes in live

Thanks. Malleability and redefining classes in running code sound like advantages. Can you point to a situation where you might want to redefine classes in live code?

pjmlp 4y ago
In a game engine, you don't want to rebuild everything just to change a couple of details in the scene. Live++ and VC++ reload are quite far from what Lisp allows. Or to save a space ship, https://thenewstack.io/nasa-programmer-remembers-debugging-lisp-in-deep-space/ https://thenewstack.io/nasa-programmer-remembers-debugging-l...
- TurboHaskal 4y ago
  Those Smalltalk and Lisp programmers are again at tweaking their running instances in production. Couldn't they just let it crash and relaunch a new ship as is the best practice these days?
  - pjmlp 4y ago
    Somehow it is seen valuable enough that Erlang, Java and .NET developers enjoy similar tooling in production, just not with the same depth as Lisp and Smalltalk.
  - vindarel 4y ago
    yes sure, I deploy my CL web apps with Systemd, just like normal software.
lisper 4y ago
Any time you are developing code with a lot of state. Being able to redefine classes on the fly makes the debug cycle much faster.