Nim Playground Projects

INim

4 625 2.8 Nim

Interactive Nim Shell / REPL / Playground

Project mention: Nim | news.ycombinator.com | 2023-12-06

- `nim secret`[0]: code is interpreted with Nim's vm, it is limited to compile-time (e.g. no C/C++).
- `nlvm r`[1]: nlvm backend supports JIT compilation and repl-like interface was added in latest release.
- `inim`[2]: supports all nim code, but it's not really a true repl. It adds code to a file and recompiles it (you can see the source file with `ctrl+x`). I'd recommend to use it with clang compiler, because it's a bit faster than gcc in my experience. It's the best option right now. And I use it almost daily.
First two options have rudimentary input system. But you can get command history and left-right navigation by wrapping them with rlwrap (should be preinstalled on most *nixes): `rlwrap nim secret`, `rlwrap nlvm r`.
There are plans to support incremental compilation for the next Nim release (it is currently broken). That would improve inim and other repls experience significantly.
[0]: https://nim-lang.org/docs/manual.html#restrictions-on-compil...
[1]: https://forum.nim-lang.org/t/10697
[2]: https://github.com/inim-repl/INim

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-12-06.