"use strict";
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function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }
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function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
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function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
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var OldSelector = /*#__PURE__*/function () {
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function OldSelector(selector, prefix) {
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this.prefix = prefix;
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this.prefixed = selector.prefixed(this.prefix);
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this.regexp = selector.regexp(this.prefix);
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this.prefixeds = selector.possible().map(function (x) {
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return [selector.prefixed(x), selector.regexp(x)];
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});
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this.unprefixed = selector.name;
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this.nameRegexp = selector.regexp();
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}
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/**
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* Is rule a hack without unprefixed version bottom
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*/
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var _proto = OldSelector.prototype;
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_proto.isHack = function isHack(rule) {
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var index = rule.parent.index(rule) + 1;
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var rules = rule.parent.nodes;
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while (index < rules.length) {
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var before = rules[index].selector;
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if (!before) {
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return true;
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}
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if (before.includes(this.unprefixed) && before.match(this.nameRegexp)) {
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return false;
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}
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var some = false;
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for (var _iterator = _createForOfIteratorHelperLoose(this.prefixeds), _step; !(_step = _iterator()).done;) {
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var _step$value = _step.value,
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string = _step$value[0],
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regexp = _step$value[1];
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if (before.includes(string) && before.match(regexp)) {
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some = true;
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break;
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}
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}
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if (!some) {
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return true;
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}
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index += 1;
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}
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return true;
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}
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/**
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* Does rule contain an unnecessary prefixed selector
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*/
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;
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_proto.check = function check(rule) {
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if (!rule.selector.includes(this.prefixed)) {
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return false;
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}
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if (!rule.selector.match(this.regexp)) {
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return false;
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}
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if (this.isHack(rule)) {
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return false;
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}
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return true;
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};
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return OldSelector;
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}();
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module.exports = OldSelector;
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