Yorick Peterse authored
While Rust is a great language overall, I wasn't making as much progress writing a compiler in it as I hoped for. In particular I found myself fighting Rust more often than should be necessary. Perhaps I am to blame, perhaps Rust was too strict. Either way, since the goal is to make the compiler self hosting there's no point in spending months trying to implement a Rust based compiler. As such I decided to write the compiler in Ruby. Ruby has many flaws, but it makes it much easier to quickly write a compiler without having to fight the language all the time, at the cost of the occasional runtime error during development. For example, porting over most of the Rust code _and_ using a linear IR (instead of the tree IR used in the Rust compiler) only took a few days.