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, ...)
Nothing special here, simply use cargo build --release to build the interpreter/REPL binary.
Rlox currently passes all tests of the official test
suite.
While the general architecture follows clox (the book's reference implementation, written in C), the error reporting and synchronization actually resembles jlox (the
java-implementation from the book's first part). Thus the official test suite needs to be run in "jlox" mode.
There's a single test that fails because in this case rlox actually behaves like clox, namely unexpected_character.rlox.
There are also some unit tests and benchmarks, they can be run via the usual cargo test and cargo bench commands.