Hii Julians, I was wondering about the exact usage of femtolisp in julia. I’ve Googled around but the nothing exact came up, though there were some references in the old archives. I know that the julia-parser has a native implementation now so, If anyone could please explain to me the exact usage …

[image] abhi18av: Hmm, interesting. But why only femtolisp? After reading through this thread, perhaps this piece of missing information for @abhi18av (and anyone else interested) is this: If you are asking “But only - why femtolisp in particular?” the answer would be, as I understand ( see t…

There was a while very early on where we were using Guile (IIRC – but it could have been some other Scheme implementation) instead, on the premise that a mature, well-tested Scheme – and one that can compile to C code at that – would be better and faster. But we found that it was pretty crashy and t…

Mm hmm, thanks everyone for the wonderful resources! I’ve learned a lot from this thread :slight_smile:

That’s interesting, using Guile initially. I think that after Andy Wingo got involved, the language got a VM and wonderful S-exp based assembly. I’m really starting to grok compilers and language design. Could you tell me more about why mark-and-sweep and not some other GC? And, I thought people pr…

Yes @andyferris , I did come to know about femtolisp by this femto-emacs . Only then did I become really interested it the use of femtolisp in julia.

The Tokenize.jl - I wouldn’t have found it myself! Appreciate it, @ararslan

@ScottPJones and @stevengj Regarding this thing about C++, then how does it work out with other LLVM targetting languages like Rust etc? Isn’t LLVM supposed to be a level platform to build upon.

[image] abhi18av: I thought people prefer not having a GC so they can fine tune their applications more so how does that work out with julia. In Julia, certain types in certain situations can be statically allocated on the stack (I think this maps to isbits-types but I’m not sure). An algorit…

[image] dennis-t-peasant: document FemtoLisp’s role in the compiler more formally It’s as far as I know only used in the Julia parser (and easteregg julia --lisp not even documented with --help-hidden). I don’t think it’s going away in the any time soon (since I read, it’s not "speed-critical…

Femtolisp does parsing and lowering of the julia code. There is interest in bringing the parser to julia in order to give better errors

The role of femtolisp in Julia?

Internals & Design

StefanKarpinski June 30, 2022, 2:38pm 37

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The role of femtolisp in Julia?

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