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Still doesn't compile, but I think excellent progress.

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Simon Brooke 2026-04-28 11:54:15 +01:00
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docs/State-of-play.md
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# State of Play
## 20260427
### eval/apply, yet again
OK, OK. So the version of `eval`/`apply` written in C is the `:bootstrap` version — which is to say, sufficient to get Lisp bootstrapped, and to run the compiler. One or both can then be replaced by new implementations written in Lisp, to provide the `:system` versions. And any user should in principle be able to override the system versions with their own versions (although troubling worries about security come into that).
So yesterday, I decided to copy the versions of `eval` and `apply` from `0.0.6` (which, after all, do work — there are lots of problems with the `0.0.6` prototype, but the interpreter is not one of them) into `0.1.0`. But then last night I read the chapter in Cees de Groot's [The Genius of Lisp](https://cdegroot.com/programming/lisp/2026/02/17/why-i-wrote-the-genius-of-lisp.html) and I'm back to wanting to reimplement them *yet again*. I'm not sure that this is wise.
## 20260424
### To have `c_` functions or not to have `c_` functions, revisited