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Language tooling for the Lox programming language.

Home Page: https://ajeetdsouza.github.io/loxcraft/

License: MIT License

Rust 92.02% JavaScript 1.26% HTML 0.29% TypeScript 4.42% CSS 0.76% Just 1.25%

compiler lox language-server-protocol rust tree-sitter repl crafting-interpreters interpreter lox-language programming-language virtual-machine bytecode bytecode-interpreter compiler-construction compiler-design hacktoberfest scripting-language lalrpop webassembly

loxcraft's Introduction

loxcraft

Language tooling for the Lox programming language.

Installation

cargo install loxcraft --locked

Features

Bytecode compiler + garbage collected runtime
Online playground, via WebAssembly (try it out!)
REPL
Syntax highlighting, via tree-sitter-lox
IDE integration, via the Language Server Protocol

Screenshots

Benchmarks

Time taken to execute the benchmark suite (lower is better):

Benchmark	loxcraft	clox	jlox
binary_tree	8.29s	8.13s	26.41s
equality_1	7.17s	7.73s	10.01s
equality_2	8.39s	9.66s	14.30s
fib	10.90s	10.09s	21.89s
instantiation	10.83s	12.84s	14.24s
invocation	9.93s	8.93s	15.77s
method_call	11.01s	9.12s	62.03s
properties	10.05s	5.98s	69.77s
string_equality_1	7.76s	7.66s	34.08s
string_equality_2	10.78s	10.52s	36.25s
trees	9.97s	8.72s	72.87s
zoo	10.67s	6.18s	100.10s

Benchmarks were run with the following configuration:

Device: Apple MacBook Pro (16-inch, 2021)
Processor: M1 Pro
RAM: 16 GiB
OS: macOS Ventura 13.2
Rust: 1.66.1
Apple Clang: 14.0.0
Oracle JDK: 19.0.2

Contributors

loxcraft's People

Contributors

Stargazers

Watchers

Forkers

icodein bahdotsh derekirish3 captainlee1024 your-moon jeremylgl2 uamh-forever uamhforever hchogan

loxcraft's Issues

Add byte indexes to AST

The parser should include byte indexes in the AST to allow go-to definitions as well as runtime error reporting. For example, Gluon does this with the Span type: https://github.com/gluon-lang/gluon/blob/master/vm/src/core/grammar.lalrpop

Feature request: debug support

It would be nice to have at least basic debug support for the language. I know it's an advanced topic but I think there is so much to learn from it.

Try to apply PGO

Did you try applying PGO to optimize the compiler further based on runtime information? This technique is already used by e.g. rustc and cpython. More about PGO results (with actual numbers) in other applications you can find here - https://github.com/zamazan4ik/awesome-pgo .

Parser error recovery

LALRPOP allows error recovery so that more than 1 error can be generated at a time: https://lalrpop.github.io/lalrpop/tutorial/008_error_recovery.html

For example, Gluon uses a RecoverError block: https://github.com/gluon-lang/gluon/blob/master/parser/src/grammar.lalrpop

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