This is my implementation of Lox/VM (thus "vlox", because I implemented the AST based one in C++ instead of Java, and that was "clox"...), with all the challenges I went through, plus some extensions.
It's a work in progress, really.
Included extras:
- Implemented most of the challenges in the original book, meaning indices are not limited to 8 bits any longer, among other things.
- Integers are a separate type, mostly for use as indexes.
- List support, based on Caleb Schoepp's suggestions. Additionally:
- Support for negative indexing
- Support for slicing using the same syntax and conventions as Python.
- Assignment to slices still pending.
- Made append/delete into keywords (for the time being):
append expression newelement- where expression returns a list.delete identifier[expression]- where identifier must refer to a list.
- Deleting enough elements from a string makes it shrink. The current implementation is a bit naive though (just halve its capacity whenever possible).
- Generalized indexing and slicing so that it works on strings.