# Sassers

A Sass compiler written natively in Rust.

[![Build Status](https://travis-ci.org/carols10cents/sassers.svg?branch=master)](https://travis-ci.org/carols10cents/sassers)
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**Incomplete!!!!** To see current progress:

* Clone this project and `cargo build`
* Clone [sass-spec](https://github.com/sass/sass-spec/) and get ruby and all that good stuff
* In sass-spec, run `./sass-spec.rb -c '/path/to/your/sassers/executable'

Last run I did was 205 passing and 4294 failing out of 4499 tests. So yeah, REALLY NOT DONE YET.

Progress bar: [=-------------------]

Sassers follows [Sentimental Versioning](http://sentimentalversioning.org/).

## License

MIT. See LICENSE.

## Optimizations

* Pass `T: Write` down into methods instead of returning String all the time to avoid allocating so many times

## TODO

* Compare speed/memory usage to libsass
* Profile if it's significantly worse than libsass and fix
* Abstract variable/parameter HashMaps into a `context` or `binding` object with nice insertion and accessing methods

## Useful debugging incantation

To get debugging statements and run a particular test:

* Add `extern crate env_logger;` to the `test` module
* Add `let _ = env_logger::init();` to the particular test function
* Run:

```
$ RUST_LOG=sassers=debug cargo test -- --nocapture evaluator::tests::it_subtitutes_variable_values
```