rlox
A full implementation of the lox programming language written in Rust. The 3rd part of the book implements a bytecode VM in C, which the design of my Rust implementation follows rather closely. However, I tried using idiomatic Rust code wherever possible (e.g. using Result<> for error handling, implementing the Scanner/TokenStream as an iterator, using Rust's enums instead of tagged unions, ...)
Building
Nothing special here, simply use cargo build --release to build the interpreter/REPL binary.
Testing
Rlox currently passes all function tests of the official test
suite. There are a few tests that fail because
rlox will report different errors than clox, namely function/body_must_be_block.lox,
function/missing_comma_in_parameters.lox and class/local_inherit_self.lox. This is caused by slight differences in
the way I implemented parser synchronization when encountering an error.
There are also some unit tests and benchmark, they can be run via the usual cargo test and cargo bench commands.