1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.compilePseudoSelector = exports.aliases = exports.pseudos = exports.filters = void 0;
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4 | /*
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5 | * Pseudo selectors
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6 | *
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7 | * Pseudo selectors are available in three forms:
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8 | *
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9 | * 1. Filters are called when the selector is compiled and return a function
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10 | * that has to return either false, or the results of `next()`.
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11 | * 2. Pseudos are called on execution. They have to return a boolean.
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12 | * 3. Subselects work like filters, but have an embedded selector that will be run separately.
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13 | *
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14 | * Filters are great if you want to do some pre-processing, or change the call order
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15 | * of `next()` and your code.
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16 | * Pseudos should be used to implement simple checks.
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17 | */
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18 | var boolbase_1 = require("boolbase");
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19 | var css_what_1 = require("css-what");
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20 | var filters_1 = require("./filters");
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21 | Object.defineProperty(exports, "filters", { enumerable: true, get: function () { return filters_1.filters; } });
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22 | var pseudos_1 = require("./pseudos");
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23 | Object.defineProperty(exports, "pseudos", { enumerable: true, get: function () { return pseudos_1.pseudos; } });
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24 | var aliases_1 = require("./aliases");
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25 | Object.defineProperty(exports, "aliases", { enumerable: true, get: function () { return aliases_1.aliases; } });
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26 | var subselects_1 = require("./subselects");
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27 | function compilePseudoSelector(next, selector, options, context, compileToken) {
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28 | var name = selector.name, data = selector.data;
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29 | if (Array.isArray(data)) {
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30 | return subselects_1.subselects[name](next, data, options, context, compileToken);
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31 | }
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32 | if (name in aliases_1.aliases) {
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33 | if (data != null) {
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34 | throw new Error("Pseudo " + name + " doesn't have any arguments");
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35 | }
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36 | // The alias has to be parsed here, to make sure options are respected.
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37 | var alias = css_what_1.parse(aliases_1.aliases[name], options);
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38 | return subselects_1.subselects.is(next, alias, options, context, compileToken);
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39 | }
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40 | if (name in filters_1.filters) {
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41 | return filters_1.filters[name](next, data, options, context);
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42 | }
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43 | if (name in pseudos_1.pseudos) {
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44 | var pseudo_1 = pseudos_1.pseudos[name];
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45 | pseudos_1.verifyPseudoArgs(pseudo_1, name, data);
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46 | return pseudo_1 === boolbase_1.falseFunc
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47 | ? boolbase_1.falseFunc
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48 | : next === boolbase_1.trueFunc
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49 | ? function (elem) { return pseudo_1(elem, options, data); }
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50 | : function (elem) { return pseudo_1(elem, options, data) && next(elem); };
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51 | }
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52 | throw new Error("unmatched pseudo-class :" + name);
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53 | }
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54 | exports.compilePseudoSelector = compilePseudoSelector;
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