The role of femtolisp in Julia?

[ihnorton]

Syntax lowering is also in femtolisp (julia-syntax.scm), and has not yet been ported. There are some bootstrap issues which would need solving, and not a strong-enough reason to do so at this time.

See also:

What exactly code lowering is an how to do "unlowering"?

I’ve seen a number of snippets produced by code_lowered and have rough intuition of what it does, but what’s exact definition of code lowering? Does “lower” means “more low-level”? In my package I need to get an expression of a function. I do it using the code at the end of this post, but essentially I get it using Base.uncompressed_ast which, as far as I understand, returns lowered code that is a bit hard to work with. Is there a way to “undo” lowering or get function expression exactly as…