grass

An implementation of the SASS spec in rust with 0 dependencies

To run the official test suite,

bash git clone https://github.com/ConnorSkees/grass cd grass git submodule init git submodule update cargo b --release ./sass-spec/sass-spec.rb -c './target/release/grass'

2020-01-20 PASSING: 143 FAILING: 4950 TOTAL: 5093

Features

grass is far from being feature complete! Below you can see what SCSS features are currently supported. My MVP will include values, @mixin, @include, @media, styles, operators, css functions and css at rules.

• [ ] Variables
  • [x] Scoping
  • [x] Shadowing
  • [ ] Built-in variables
  • [ ] !default
  • [ ] !global
• [x] @import
• [x] @error
• [x] @warn
• [x] @debug
• [ ] Styles
  • [x] !important
  • [x] Interpolation
  • [ ] Nesting
  • [ ] Custom properties
  • [ ] Hidden declarations
• [ ] Selectors
  • [x] Attributes
  • [x] Parent selector &
  • [x] All other selectors
  • [x] Nesting
  • [ ] Placeholder selector %
• [x] Comments
  • [x] Removes single line comments
  • [x] Preserves toplevel multiline comments
  • [x] Removes inline multiline comments
• [ ] @mixin
  • [x] Keyword args
  • [x] Default arg values
  • [ ] Variadic args
  • [ ] @content
• [ ] @include
  • [x] Keyword args
  • [x] Default arg values
  • [ ] Content blocks
• [ ] Functions
  • [ ] @return
• [ ] Control flow
  • [ ] @if
  • [ ] @else
  • [ ] @for
  • [ ] @while
  • [ ] @each
• [ ] Constant folding
• [ ] Unit arithmetic
• [ ] CSS at rules
• [ ] CSS functions
  • [ ] calc()
  • [ ] url()
  • [ ] element()
  • [ ] progid:...()
  • [ ] expression()
  • [ ] min()
  • [ ] max()
• [ ] @media
• [ ] @use
• [ ] @extend
• [ ] @at-root
• [ ] @forward
• [ ] Values
  • [ ] Numbers
  • [ ] Strings
  • [ ] Colors
  • [ ] Lists
  • [ ] Maps
  • [ ] Booleans
  • [ ] Null
• [ ] Operators
• [ ] Built-in modules
• [ ] Content encoding
• [ ] WASM bindings