From the article: > But so far, I have the lexer done, as well as a sizable part of the parser. Macro/module expansion is something I’m putting off as long as

From the article: > But so far, I have the lexer done, as well as a sizable part of the parser. Macro/module expansion is something I’m putting off as long as possible, typechecking only supports i32, and codegen is a little bit rough. But it’s a start. So it is currently nowhere near complete (and the author never claims otherwise).