58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _postcss = require('postcss');
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var _has = require('has');
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var _has2 = _interopRequireDefault(_has);
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var _browserslist = require('browserslist');
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var _browserslist2 = _interopRequireDefault(_browserslist);
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var _caniuseApi = require('caniuse-api');
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var _fromInitial = require('../data/fromInitial.json');
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var _fromInitial2 = _interopRequireDefault(_fromInitial);
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var _toInitial = require('../data/toInitial.json');
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var _toInitial2 = _interopRequireDefault(_toInitial);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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const initial = 'initial';
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exports.default = (0, _postcss.plugin)('postcss-reduce-initial', () => {
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return (css, result) => {
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const resultOpts = result.opts || {};
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const browsers = (0, _browserslist2.default)(null, {
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stats: resultOpts.stats,
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path: __dirname,
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env: resultOpts.env
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});
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const initialSupport = (0, _caniuseApi.isSupported)('css-initial-value', browsers);
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css.walkDecls(decl => {
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const lowerCasedProp = decl.prop.toLowerCase();
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if (initialSupport && (0, _has2.default)(_toInitial2.default, lowerCasedProp) && decl.value.toLowerCase() === _toInitial2.default[lowerCasedProp]) {
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decl.value = initial;
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return;
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}
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if (decl.value.toLowerCase() !== initial || !_fromInitial2.default[lowerCasedProp]) {
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return;
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}
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decl.value = _fromInitial2.default[lowerCasedProp];
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});
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};
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});
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module.exports = exports['default'];
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