| 1 | 'use strict';
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| 2 |
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| 3 | var postcss = require('postcss');
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| 4 |
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| 5 | function remove (callback) {
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| 6 | return function (node) {
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| 7 | callback.call(this, node) && node.removeSelf();
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| 8 | };
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| 9 | }
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| 10 |
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| 11 | module.exports = postcss.plugin('postcss-discard-empty', function () {
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| 12 | return function (css) {
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| 13 | css.eachDecl(remove(function (decl) {
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| 14 | return !decl.value;
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| 15 | }));
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| 16 | css.eachRule(remove(function (rule) {
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| 17 | return !rule.selector.length || !rule.nodes.length;
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| 18 | }));
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| 19 | css.eachAtRule(remove(function (rule) {
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| 20 | if (rule.nodes) {
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| 21 | return !rule.nodes.length;
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| 22 | }
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| 23 | return !rule.params;
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| 24 | }));
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| 25 | };
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| 26 | });
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