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 wxy
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(function() {
var Browsers, Prefixes, browserslist, cache, isPlainObject, postcss, timeCapsule,
slice = [].slice;
browserslist = require('browserslist');
postcss = require('postcss');
Browsers = require('./browsers');
Prefixes = require('./prefixes');
isPlainObject = function(obj) {
return Object.prototype.toString.apply(obj) === '[object Object]';
};
cache = {};
timeCapsule = function(result, prefixes) {
if (prefixes.browsers.selected.length === 0) {
return;
}
if (prefixes.add.selectors.length > 0) {
return;
}
if (Object.keys(prefixes.add).length > 2) {
return;
}
return result.warn('Greetings, time traveller. ' + 'We are in the golden age of prefix-less CSS, ' + 'where Autoprefixer is no longer needed for your stylesheet.');
};
module.exports = postcss.plugin('autoprefixer', function() {
var loadPrefixes, options, plugin, reqs;
reqs = 1 <= arguments.length ? slice.call(arguments, 0) : [];
if (reqs.length === 1 && isPlainObject(reqs[0])) {
options = reqs[0];
reqs = void 0;
} else if (reqs.length === 0 || (reqs.length === 1 && (reqs[0] == null))) {
reqs = void 0;
} else if (reqs.length <= 2 && (reqs[0] instanceof Array || (reqs[0] == null))) {
options = reqs[1];
reqs = reqs[0];
} else if (typeof reqs[reqs.length - 1] === 'object') {
options = reqs.pop();
}
options || (options = {});
if (options.browser) {
throw new Error('Change `browser` option to `browsers` in Autoprefixer');
}
if (options.browsers != null) {
reqs = options.browsers;
}
loadPrefixes = function(opts) {
var browsers, key, stats;
stats = options.stats;
browsers = new Browsers(module.exports.data.browsers, reqs, opts, stats);
key = browsers.selected.join(', ') + JSON.stringify(options);
return cache[key] || (cache[key] = new Prefixes(module.exports.data.prefixes, browsers, options));
};
plugin = function(css, result) {
var prefixes, ref;
prefixes = loadPrefixes({
from: (ref = css.source) != null ? ref.input.file : void 0,
env: options.env
});
timeCapsule(result, prefixes);
if (options.remove !== false) {
prefixes.processor.remove(css);
}
if (options.add !== false) {
return prefixes.processor.add(css, result);
}
};
plugin.options = options;
plugin.info = function(opts) {
return require('./info')(loadPrefixes(opts));
};
return plugin;
});
module.exports.data = {
browsers: require('caniuse-db/data.json').agents,
prefixes: require('../data/prefixes')
};
module.exports.defaults = browserslist.defaults;
module.exports.info = function() {
return module.exports().info();
};
}).call(this);
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