jyzwf/postcss-rs

🚀 Fast and 100% API compatible postcss replacer, built in Rust

postcss-rs

🚀 Fast and 100% API compatible postcss replacer, built in Rust

⚠️ DO NOT USE. STILL WORK IN PROGRESS.

Performance Improvement

Run benchmark:

cargo build --release --locked --bin "benchmark*"
cargo run --release --bin benchmark

Tokenizer (Compare with Node.js v16.13.0):

js:   0.71s user 0.09s system 152% cpu 0.619 total
rust: 0.03s user 0.01s system  93% cpu 0.039 total

file	tailwind-components.css	bootstrap-reboot.css	bootstrap-grid.css	bootstrap.css	tailwind.css	tailwind-dark.css
size	2.8K	7.4K	71K	201K	3.5M	5.8M
js	1.813ms	2.380ms	11.856ms	33.919ms	167.309ms	224.577ms
rust	0.019ms	0.037ms	0.191ms	0.721ms	9.624ms	15.743ms
~	95x	64x	61x	47x	17x	14x

Parser (Compare with Node.js v16.13.0):

js:   1.45s user 0.16s system 183% cpu 0.881 total
rust: 0.10s user 0.03s system  97% cpu 0.137 total

file	tailwind-components.css	bootstrap-reboot.css	bootstrap-grid.css	bootstrap.css	tailwind.css	tailwind-dark.css
size	2.8K	7.4K	71K	201K	3.5M	5.8M
js	4.405ms	4.203ms	33.344ms	55.749ms	356.345ms	441.832ms
rust	0.070ms	0.088ms	1.016ms	2.220ms	45.112ms	68.663ms
~	63x	47x	33x	25x	8x	6x

🎉 Welcome to contribute, here is a guide:

git checkout main
cargo bench -- --save-baseline main

Create a baseline, Then do some optimization work here.

git checkout feature  ## `feature` is your branch

Compare against the main baseline.

cargo bench -- --baseline main

License

postcss-rs is released under the MIT License. See the LICENSE file in the project root directory for details.

ACKNOWLEDGEMENT

The project is based on the wonderful work of Andrey Sitnik(@ai) 's postcss, which is under MIT License(See HERE), Great thanks to Mr. Sitnik and other contributors' work.