611 lines
19 KiB
JavaScript
611 lines
19 KiB
JavaScript
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import parser from 'postcss-selector-parser';
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import fs from 'fs';
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import path from 'path';
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import postcss from 'postcss';
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function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
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try {
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var info = gen[key](arg);
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var value = info.value;
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} catch (error) {
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reject(error);
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return;
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}
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if (info.done) {
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resolve(value);
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} else {
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Promise.resolve(value).then(_next, _throw);
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}
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}
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function _asyncToGenerator(fn) {
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return function () {
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var self = this,
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args = arguments;
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return new Promise(function (resolve, reject) {
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var gen = fn.apply(self, args);
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function _next(value) {
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asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
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}
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function _throw(err) {
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asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
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}
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_next(undefined);
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});
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};
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}
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function _defineProperty(obj, key, value) {
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if (key in obj) {
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Object.defineProperty(obj, key, {
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value: value,
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enumerable: true,
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configurable: true,
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writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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function _objectSpread(target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i] != null ? arguments[i] : {};
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var ownKeys = Object.keys(source);
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if (typeof Object.getOwnPropertySymbols === 'function') {
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ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
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return Object.getOwnPropertyDescriptor(source, sym).enumerable;
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}));
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}
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ownKeys.forEach(function (key) {
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_defineProperty(target, key, source[key]);
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});
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}
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return target;
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}
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function _slicedToArray(arr, i) {
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return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
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}
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function _arrayWithHoles(arr) {
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if (Array.isArray(arr)) return arr;
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}
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function _iterableToArrayLimit(arr, i) {
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var _arr = [];
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var _n = true;
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var _d = false;
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var _e = undefined;
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try {
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for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
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_arr.push(_s.value);
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if (i && _arr.length === i) break;
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}
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} catch (err) {
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_d = true;
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_e = err;
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} finally {
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try {
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if (!_n && _i["return"] != null) _i["return"]();
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} finally {
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if (_d) throw _e;
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}
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}
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return _arr;
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}
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function _nonIterableRest() {
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throw new TypeError("Invalid attempt to destructure non-iterable instance");
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}
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/* Return a Selectors AST from a Selectors String
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/* ========================================================================== */
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var getSelectorsAstFromSelectorsString = (selectorString => {
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let selectorAST;
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parser(selectors => {
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selectorAST = selectors;
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}).processSync(selectorString);
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return selectorAST;
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});
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var getCustomSelectors = ((root, opts) => {
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// initialize custom selectors
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const customSelectors = {}; // for each custom selector atrule that is a child of the css root
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root.nodes.slice().forEach(node => {
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if (isCustomSelector(node)) {
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// extract the name and selectors from the params of the custom selector
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const _node$params$match = node.params.match(customSelectorParamsRegExp),
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_node$params$match2 = _slicedToArray(_node$params$match, 3),
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name = _node$params$match2[1],
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selectors = _node$params$match2[2]; // write the parsed selectors to the custom selector
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customSelectors[name] = getSelectorsAstFromSelectorsString(selectors); // conditionally remove the custom selector atrule
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if (!Object(opts).preserve) {
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node.remove();
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}
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}
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});
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return customSelectors;
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}); // match the custom selector name
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const customSelectorNameRegExp = /^custom-selector$/i; // match the custom selector params
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const customSelectorParamsRegExp = /^(:--[A-z][\w-]*)\s+([\W\w]+)\s*$/; // whether the atrule is a custom selector
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const isCustomSelector = node => node.type === 'atrule' && customSelectorNameRegExp.test(node.name) && customSelectorParamsRegExp.test(node.params);
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// return transformed selectors, replacing custom pseudo selectors with custom selectors
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function transformSelectorList(selectorList, customSelectors) {
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let index = selectorList.nodes.length - 1;
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while (index >= 0) {
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const transformedSelectors = transformSelector(selectorList.nodes[index], customSelectors);
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if (transformedSelectors.length) {
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selectorList.nodes.splice(index, 1, ...transformedSelectors);
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}
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--index;
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}
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return selectorList;
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} // return custom pseudo selectors replaced with custom selectors
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function transformSelector(selector, customSelectors) {
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const transpiledSelectors = [];
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for (const index in selector.nodes) {
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const _selector$nodes$index = selector.nodes[index],
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value = _selector$nodes$index.value,
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nodes = _selector$nodes$index.nodes;
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if (value in customSelectors) {
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = customSelectors[value].nodes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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const replacementSelector = _step.value;
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const selectorClone = selector.clone();
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selectorClone.nodes.splice(index, 1, ...replacementSelector.clone().nodes.map(node => {
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// use spacing from the current usage
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node.spaces = _objectSpread({}, selector.nodes[index].spaces);
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return node;
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}));
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const retranspiledSelectors = transformSelector(selectorClone, customSelectors);
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adjustNodesBySelectorEnds(selectorClone.nodes, Number(index));
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if (retranspiledSelectors.length) {
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transpiledSelectors.push(...retranspiledSelectors);
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} else {
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transpiledSelectors.push(selectorClone);
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}
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return != null) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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return transpiledSelectors;
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} else if (nodes && nodes.length) {
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transformSelectorList(selector.nodes[index], customSelectors);
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}
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}
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return transpiledSelectors;
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} // match selectors by difficult-to-separate ends
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const withoutSelectorStartMatch = /^(tag|universal)$/;
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const withoutSelectorEndMatch = /^(class|id|pseudo|tag|universal)$/;
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const isWithoutSelectorStart = node => withoutSelectorStartMatch.test(Object(node).type);
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const isWithoutSelectorEnd = node => withoutSelectorEndMatch.test(Object(node).type); // adjust nodes by selector ends (so that .class:--h1 becomes h1.class rather than .classh1)
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const adjustNodesBySelectorEnds = (nodes, index) => {
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if (index && isWithoutSelectorStart(nodes[index]) && isWithoutSelectorEnd(nodes[index - 1])) {
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let safeIndex = index - 1;
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while (safeIndex && isWithoutSelectorEnd(nodes[safeIndex])) {
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--safeIndex;
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}
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if (safeIndex < index) {
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const node = nodes.splice(index, 1)[0];
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nodes.splice(safeIndex, 0, node);
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nodes[safeIndex].spaces.before = nodes[safeIndex + 1].spaces.before;
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nodes[safeIndex + 1].spaces.before = '';
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if (nodes[index]) {
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nodes[index].spaces.after = nodes[safeIndex].spaces.after;
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nodes[safeIndex].spaces.after = '';
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}
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}
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}
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};
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var transformRules = ((root, customSelectors, opts) => {
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root.walkRules(customPseudoRegExp, rule => {
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const selector = parser(selectors => {
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transformSelectorList(selectors, customSelectors, opts);
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}).processSync(rule.selector);
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if (opts.preserve) {
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rule.cloneBefore({
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selector
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});
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} else {
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rule.selector = selector;
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}
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});
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});
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const customPseudoRegExp = /:--[A-z][\w-]*/;
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/* Import Custom Selectors from CSS AST
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/* ========================================================================== */
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function importCustomSelectorsFromCSSAST(root) {
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return getCustomSelectors(root);
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}
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/* Import Custom Selectors from CSS File
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/* ========================================================================== */
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function importCustomSelectorsFromCSSFile(_x) {
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return _importCustomSelectorsFromCSSFile.apply(this, arguments);
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}
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/* Import Custom Selectors from Object
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/* ========================================================================== */
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function _importCustomSelectorsFromCSSFile() {
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_importCustomSelectorsFromCSSFile = _asyncToGenerator(function* (from) {
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const css = yield readFile(path.resolve(from));
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const root = postcss.parse(css, {
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from: path.resolve(from)
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});
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return importCustomSelectorsFromCSSAST(root);
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});
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return _importCustomSelectorsFromCSSFile.apply(this, arguments);
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}
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function importCustomSelectorsFromObject(object) {
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const customSelectors = Object.assign({}, Object(object).customSelectors || Object(object)['custom-selectors']);
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for (const key in customSelectors) {
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customSelectors[key] = getSelectorsAstFromSelectorsString(customSelectors[key]);
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}
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return customSelectors;
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}
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/* Import Custom Selectors from JSON file
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/* ========================================================================== */
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function importCustomSelectorsFromJSONFile(_x2) {
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return _importCustomSelectorsFromJSONFile.apply(this, arguments);
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}
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/* Import Custom Selectors from JS file
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/* ========================================================================== */
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function _importCustomSelectorsFromJSONFile() {
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_importCustomSelectorsFromJSONFile = _asyncToGenerator(function* (from) {
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const object = yield readJSON(path.resolve(from));
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return importCustomSelectorsFromObject(object);
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});
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return _importCustomSelectorsFromJSONFile.apply(this, arguments);
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}
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function importCustomSelectorsFromJSFile(_x3) {
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return _importCustomSelectorsFromJSFile.apply(this, arguments);
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}
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/* Import Custom Selectors from Sources
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/* ========================================================================== */
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function _importCustomSelectorsFromJSFile() {
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_importCustomSelectorsFromJSFile = _asyncToGenerator(function* (from) {
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const object = yield import(path.resolve(from));
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return importCustomSelectorsFromObject(object);
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});
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return _importCustomSelectorsFromJSFile.apply(this, arguments);
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}
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function importCustomSelectorsFromSources(sources) {
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return sources.map(source => {
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if (source instanceof Promise) {
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return source;
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} else if (source instanceof Function) {
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return source();
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} // read the source as an object
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const opts = source === Object(source) ? source : {
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from: String(source)
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}; // skip objects with custom selectors
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if (Object(opts).customSelectors || Object(opts)['custom-selectors']) {
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return opts;
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} // source pathname
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const from = String(opts.from || ''); // type of file being read from
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const type = (opts.type || path.extname(from).slice(1)).toLowerCase();
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return {
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type,
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from
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};
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}).reduce(
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/*#__PURE__*/
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function () {
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var _ref = _asyncToGenerator(function* (customSelectors, source) {
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const _ref2 = yield source,
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type = _ref2.type,
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from = _ref2.from;
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if (type === 'ast') {
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return Object.assign(customSelectors, importCustomSelectorsFromCSSAST(from));
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}
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if (type === 'css') {
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return Object.assign(customSelectors, (yield importCustomSelectorsFromCSSFile(from)));
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}
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if (type === 'js') {
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return Object.assign(customSelectors, (yield importCustomSelectorsFromJSFile(from)));
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}
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if (type === 'json') {
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return Object.assign(customSelectors, (yield importCustomSelectorsFromJSONFile(from)));
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}
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return Object.assign(customSelectors, importCustomSelectorsFromObject((yield source)));
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});
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||
|
|
return function (_x4, _x5) {
|
||
|
|
return _ref.apply(this, arguments);
|
||
|
|
};
|
||
|
|
}(), {});
|
||
|
|
}
|
||
|
|
/* Helper utilities
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
const readFile = from => new Promise((resolve, reject) => {
|
||
|
|
fs.readFile(from, 'utf8', (error, result) => {
|
||
|
|
if (error) {
|
||
|
|
reject(error);
|
||
|
|
} else {
|
||
|
|
resolve(result);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
const readJSON =
|
||
|
|
/*#__PURE__*/
|
||
|
|
function () {
|
||
|
|
var _ref3 = _asyncToGenerator(function* (from) {
|
||
|
|
return JSON.parse((yield readFile(from)));
|
||
|
|
});
|
||
|
|
|
||
|
|
return function readJSON(_x6) {
|
||
|
|
return _ref3.apply(this, arguments);
|
||
|
|
};
|
||
|
|
}();
|
||
|
|
|
||
|
|
/* Import Custom Selectors from CSS File
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
function exportCustomSelectorsToCssFile(_x, _x2) {
|
||
|
|
return _exportCustomSelectorsToCssFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
/* Import Custom Selectors from JSON file
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
|
||
|
|
function _exportCustomSelectorsToCssFile() {
|
||
|
|
_exportCustomSelectorsToCssFile = _asyncToGenerator(function* (to, customSelectors) {
|
||
|
|
const cssContent = Object.keys(customSelectors).reduce((cssLines, name) => {
|
||
|
|
cssLines.push(`@custom-selector ${name} ${customSelectors[name]};`);
|
||
|
|
return cssLines;
|
||
|
|
}, []).join('\n');
|
||
|
|
const css = `${cssContent}\n`;
|
||
|
|
yield writeFile(to, css);
|
||
|
|
});
|
||
|
|
return _exportCustomSelectorsToCssFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
|
||
|
|
function exportCustomSelectorsToJsonFile(_x3, _x4) {
|
||
|
|
return _exportCustomSelectorsToJsonFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
/* Import Custom Selectors from Common JS file
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
|
||
|
|
function _exportCustomSelectorsToJsonFile() {
|
||
|
|
_exportCustomSelectorsToJsonFile = _asyncToGenerator(function* (to, customSelectors) {
|
||
|
|
const jsonContent = JSON.stringify({
|
||
|
|
'custom-selectors': customSelectors
|
||
|
|
}, null, ' ');
|
||
|
|
const json = `${jsonContent}\n`;
|
||
|
|
yield writeFile(to, json);
|
||
|
|
});
|
||
|
|
return _exportCustomSelectorsToJsonFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
|
||
|
|
function exportCustomSelectorsToCjsFile(_x5, _x6) {
|
||
|
|
return _exportCustomSelectorsToCjsFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
/* Import Custom Selectors from Module JS file
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
|
||
|
|
function _exportCustomSelectorsToCjsFile() {
|
||
|
|
_exportCustomSelectorsToCjsFile = _asyncToGenerator(function* (to, customSelectors) {
|
||
|
|
const jsContents = Object.keys(customSelectors).reduce((jsLines, name) => {
|
||
|
|
jsLines.push(`\t\t'${escapeForJS(name)}': '${escapeForJS(customSelectors[name])}'`);
|
||
|
|
return jsLines;
|
||
|
|
}, []).join(',\n');
|
||
|
|
const js = `module.exports = {\n\tcustomSelectors: {\n${jsContents}\n\t}\n};\n`;
|
||
|
|
yield writeFile(to, js);
|
||
|
|
});
|
||
|
|
return _exportCustomSelectorsToCjsFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
|
||
|
|
function exportCustomSelectorsToMjsFile(_x7, _x8) {
|
||
|
|
return _exportCustomSelectorsToMjsFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
/* Export Custom Selectors to Destinations
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
|
||
|
|
function _exportCustomSelectorsToMjsFile() {
|
||
|
|
_exportCustomSelectorsToMjsFile = _asyncToGenerator(function* (to, customSelectors) {
|
||
|
|
const mjsContents = Object.keys(customSelectors).reduce((mjsLines, name) => {
|
||
|
|
mjsLines.push(`\t'${escapeForJS(name)}': '${escapeForJS(customSelectors[name])}'`);
|
||
|
|
return mjsLines;
|
||
|
|
}, []).join(',\n');
|
||
|
|
const mjs = `export const customSelectors = {\n${mjsContents}\n};\n`;
|
||
|
|
yield writeFile(to, mjs);
|
||
|
|
});
|
||
|
|
return _exportCustomSelectorsToMjsFile.apply(this, arguments);
|
||
|
|
}
|
||
|
|
|
||
|
|
function exportCustomSelectorsToDestinations(customSelectors, destinations) {
|
||
|
|
return Promise.all(destinations.map(
|
||
|
|
/*#__PURE__*/
|
||
|
|
function () {
|
||
|
|
var _ref = _asyncToGenerator(function* (destination) {
|
||
|
|
if (destination instanceof Function) {
|
||
|
|
yield destination(defaultCustomSelectorsToJSON(customSelectors));
|
||
|
|
} else {
|
||
|
|
// read the destination as an object
|
||
|
|
const opts = destination === Object(destination) ? destination : {
|
||
|
|
to: String(destination)
|
||
|
|
}; // transformer for custom selectors into a JSON-compatible object
|
||
|
|
|
||
|
|
const toJSON = opts.toJSON || defaultCustomSelectorsToJSON;
|
||
|
|
|
||
|
|
if ('customSelectors' in opts) {
|
||
|
|
// write directly to an object as customSelectors
|
||
|
|
opts.customSelectors = toJSON(customSelectors);
|
||
|
|
} else if ('custom-selectors' in opts) {
|
||
|
|
// write directly to an object as custom-selectors
|
||
|
|
opts['custom-selectors'] = toJSON(customSelectors);
|
||
|
|
} else {
|
||
|
|
// destination pathname
|
||
|
|
const to = String(opts.to || ''); // type of file being written to
|
||
|
|
|
||
|
|
const type = (opts.type || path.extname(opts.to).slice(1)).toLowerCase(); // transformed custom selectors
|
||
|
|
|
||
|
|
const customSelectorsJSON = toJSON(customSelectors);
|
||
|
|
|
||
|
|
if (type === 'css') {
|
||
|
|
yield exportCustomSelectorsToCssFile(to, customSelectorsJSON);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (type === 'js') {
|
||
|
|
yield exportCustomSelectorsToCjsFile(to, customSelectorsJSON);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (type === 'json') {
|
||
|
|
yield exportCustomSelectorsToJsonFile(to, customSelectorsJSON);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (type === 'mjs') {
|
||
|
|
yield exportCustomSelectorsToMjsFile(to, customSelectorsJSON);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return function (_x9) {
|
||
|
|
return _ref.apply(this, arguments);
|
||
|
|
};
|
||
|
|
}()));
|
||
|
|
}
|
||
|
|
/* Helper utilities
|
||
|
|
/* ========================================================================== */
|
||
|
|
|
||
|
|
const defaultCustomSelectorsToJSON = customSelectors => {
|
||
|
|
return Object.keys(customSelectors).reduce((customSelectorsJSON, key) => {
|
||
|
|
customSelectorsJSON[key] = String(customSelectors[key]);
|
||
|
|
return customSelectorsJSON;
|
||
|
|
}, {});
|
||
|
|
};
|
||
|
|
|
||
|
|
const writeFile = (to, text) => new Promise((resolve, reject) => {
|
||
|
|
fs.writeFile(to, text, error => {
|
||
|
|
if (error) {
|
||
|
|
reject(error);
|
||
|
|
} else {
|
||
|
|
resolve();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
const escapeForJS = string => string.replace(/\\([\s\S])|(')/g, '\\$1$2').replace(/\n/g, '\\n').replace(/\r/g, '\\r');
|
||
|
|
|
||
|
|
var index = postcss.plugin('postcss-custom-selectors', opts => {
|
||
|
|
// whether to preserve custom selectors and rules using them
|
||
|
|
const preserve = Boolean(Object(opts).preserve); // sources to import custom selectors from
|
||
|
|
|
||
|
|
const importFrom = [].concat(Object(opts).importFrom || []); // destinations to export custom selectors to
|
||
|
|
|
||
|
|
const exportTo = [].concat(Object(opts).exportTo || []); // promise any custom selectors are imported
|
||
|
|
|
||
|
|
const customSelectorsPromise = importCustomSelectorsFromSources(importFrom);
|
||
|
|
return (
|
||
|
|
/*#__PURE__*/
|
||
|
|
function () {
|
||
|
|
var _ref = _asyncToGenerator(function* (root) {
|
||
|
|
const customProperties = Object.assign((yield customSelectorsPromise), getCustomSelectors(root, {
|
||
|
|
preserve
|
||
|
|
}));
|
||
|
|
yield exportCustomSelectorsToDestinations(customProperties, exportTo);
|
||
|
|
transformRules(root, customProperties, {
|
||
|
|
preserve
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
return function (_x) {
|
||
|
|
return _ref.apply(this, arguments);
|
||
|
|
};
|
||
|
|
}()
|
||
|
|
);
|
||
|
|
});
|
||
|
|
|
||
|
|
export default index;
|
||
|
|
//# sourceMappingURL=index.es.mjs.map
|