olox

OCaml implementation of the lox language from Crafting Interpreters (I have never used OCaml before, but I have done some work with Haskell)

Use Jane Street's style guide.

TODOs

Think about replacing the stdlib with Jane Street's Core.
- Why this needs to be thought out: I aim for this to have as few dependencies as possible, relying on easily understood OCaml code for beginners like me who are new to the language (avoiding ppx, etc)
- This also means that the code is easily to understand and avoids duplication, which I feel it does. The lexer is roughly 150 lines of code, and the parser and interpreter are roughly the same.
Figure out a way to return lexing errors and exiting before running the parser.
Profile the code

Files implicitly define a module of their filename.
Lists are singly-linked, rather than a contiguous array in memory that is reallocated when full a la Rust's Vec<T>. I presume this is due to the garbage collector, where it is easier to allocate a smaller object in the nursery and point the tail node to that rather than allocating the same list again. Is this slow?
Jane Street's replacement standard libraries (Base, Core) avoid raising exceptions unless they're postfixed with _exn.
OCaml will automatically run any expression of type unit, so functions called for the purpose of expressing side effects should be of prototype unit -> unit.
There is no >>= operator in the standard library, and the let* syntax described in Language extensions isn't actually defined either?
- Ah, it's just saying that forms of let* bindings were allowed, not that they're defined.
I have spent way too much time refactoring code that I didn't like, instead of actually writing more code.

Name		Name	Last commit message	Last commit date
Latest commit History 37 Commits
bin		bin
test		test
.gitignore		.gitignore
.ocamlformat		.ocamlformat
README.md		README.md
ast.ml		ast.ml
dune		dune
dune-project		dune-project
error.ml		error.ml
front.ml		front.ml
lexer.ml		lexer.ml
lexer.mli		lexer.mli
parser.ml		parser.ml
parser.mli		parser.mli
print.ml		print.ml
token.ml		token.ml