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styl.js
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styl.js
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'use strict';
/**
* Module dependencies.
*/
const rework = require('rework');
const mixin = require('rework-plugin-mixin');
const mixins = mixin(require('rework-mixins'));
const variant = require('rework-variant');
const imprt = require('rework-import');
const whitespace = require('css-whitespace');
// Load plugins.
[
'rework-plugin-ease',
'rework-plugin-colors',
'rework-plugin-references',
'rework-plugin-at2x',
'rework-inherit',
'rework-shade'
].forEach(require);
class Style {
/**
* Initialize a new Style with the given css `str`.
*
* Options:
*
* - `whitespace` utilize css whitespace transformations
* - `compress` enable output compression
*
* @param {String} str
* @param {Object} options
* @api public
*/
constructor(str, options) {
options = options || {};
if (options.whitespace) str = whitespace(str);
this.path = options.path || '.';
this.str = str;
this.compress = options.compress;
this.functions = options.functions;
this.rework = rework(str);
}
/**
* Return the compiled CSS.
*
* @return {String}
* @api public
*/
compile(fn) {
const rew = this.rework;
return rew
.consume(imprt({path: this.path, transform: whitespace}))
.consume(() => {
let data;
try {
rew.use(variant());
rew.use(mixins);
if (this.functions) rew.use(this.functions);
data = rew.toString({compress: this.compress});
} catch (e) {
return fn(e);
}
fn(null, {data: data, dependencies: rew.dependencies});
}, error => fn(error));
}
}
/**
* Expose `Style`.
*/
module.exports = Style;