[6a3a178] | 1 | "use strict";
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| 2 | var __importDefault = (this && this.__importDefault) || function (mod) {
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| 3 | return (mod && mod.__esModule) ? mod : { "default": mod };
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| 4 | };
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| 5 | Object.defineProperty(exports, "__esModule", { value: true });
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| 6 | exports.compileToken = exports.compileUnsafe = exports.compile = void 0;
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| 7 | var css_what_1 = require("css-what");
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| 8 | var boolbase_1 = require("boolbase");
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| 9 | var sort_1 = __importDefault(require("./sort"));
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| 10 | var procedure_1 = require("./procedure");
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| 11 | var general_1 = require("./general");
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| 12 | var subselects_1 = require("./pseudo-selectors/subselects");
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| 13 | /**
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| 14 | * Compiles a selector to an executable function.
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| 15 | *
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| 16 | * @param selector Selector to compile.
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| 17 | * @param options Compilation options.
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| 18 | * @param context Optional context for the selector.
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| 19 | */
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| 20 | function compile(selector, options, context) {
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| 21 | var next = compileUnsafe(selector, options, context);
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| 22 | return subselects_1.ensureIsTag(next, options.adapter);
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| 23 | }
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| 24 | exports.compile = compile;
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| 25 | function compileUnsafe(selector, options, context) {
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| 26 | var token = typeof selector === "string" ? css_what_1.parse(selector, options) : selector;
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| 27 | return compileToken(token, options, context);
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| 28 | }
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| 29 | exports.compileUnsafe = compileUnsafe;
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| 30 | function includesScopePseudo(t) {
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| 31 | return (t.type === "pseudo" &&
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| 32 | (t.name === "scope" ||
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| 33 | (Array.isArray(t.data) &&
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| 34 | t.data.some(function (data) { return data.some(includesScopePseudo); }))));
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| 35 | }
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| 36 | var DESCENDANT_TOKEN = { type: "descendant" };
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| 37 | var FLEXIBLE_DESCENDANT_TOKEN = {
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| 38 | type: "_flexibleDescendant",
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| 39 | };
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| 40 | var SCOPE_TOKEN = { type: "pseudo", name: "scope", data: null };
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| 41 | /*
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| 42 | * CSS 4 Spec (Draft): 3.3.1. Absolutizing a Scope-relative Selector
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| 43 | * http://www.w3.org/TR/selectors4/#absolutizing
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| 44 | */
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| 45 | function absolutize(token, _a, context) {
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| 46 | var adapter = _a.adapter;
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| 47 | // TODO Use better check if the context is a document
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| 48 | var hasContext = !!(context === null || context === void 0 ? void 0 : context.every(function (e) {
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| 49 | var parent = adapter.isTag(e) && adapter.getParent(e);
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| 50 | return e === subselects_1.PLACEHOLDER_ELEMENT || (parent && adapter.isTag(parent));
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| 51 | }));
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| 52 | for (var _i = 0, token_1 = token; _i < token_1.length; _i++) {
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| 53 | var t = token_1[_i];
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| 54 | if (t.length > 0 && procedure_1.isTraversal(t[0]) && t[0].type !== "descendant") {
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| 55 | // Don't continue in else branch
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| 56 | }
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| 57 | else if (hasContext && !t.some(includesScopePseudo)) {
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| 58 | t.unshift(DESCENDANT_TOKEN);
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| 59 | }
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| 60 | else {
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| 61 | continue;
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| 62 | }
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| 63 | t.unshift(SCOPE_TOKEN);
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| 64 | }
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| 65 | }
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| 66 | function compileToken(token, options, context) {
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| 67 | var _a;
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| 68 | token = token.filter(function (t) { return t.length > 0; });
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| 69 | token.forEach(sort_1.default);
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| 70 | context = (_a = options.context) !== null && _a !== void 0 ? _a : context;
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| 71 | var isArrayContext = Array.isArray(context);
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| 72 | var finalContext = context && (Array.isArray(context) ? context : [context]);
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| 73 | absolutize(token, options, finalContext);
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| 74 | var shouldTestNextSiblings = false;
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| 75 | var query = token
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| 76 | .map(function (rules) {
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| 77 | if (rules.length >= 2) {
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| 78 | var first = rules[0], second = rules[1];
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| 79 | if (first.type !== "pseudo" || first.name !== "scope") {
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| 80 | // Ignore
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| 81 | }
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| 82 | else if (isArrayContext && second.type === "descendant") {
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| 83 | rules[1] = FLEXIBLE_DESCENDANT_TOKEN;
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| 84 | }
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| 85 | else if (second.type === "adjacent" ||
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| 86 | second.type === "sibling") {
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| 87 | shouldTestNextSiblings = true;
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| 88 | }
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| 89 | }
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| 90 | return compileRules(rules, options, finalContext);
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| 91 | })
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| 92 | .reduce(reduceRules, boolbase_1.falseFunc);
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| 93 | query.shouldTestNextSiblings = shouldTestNextSiblings;
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| 94 | return query;
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| 95 | }
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| 96 | exports.compileToken = compileToken;
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| 97 | function compileRules(rules, options, context) {
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| 98 | var _a;
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| 99 | return rules.reduce(function (previous, rule) {
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| 100 | return previous === boolbase_1.falseFunc
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| 101 | ? boolbase_1.falseFunc
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| 102 | : general_1.compileGeneralSelector(previous, rule, options, context, compileToken);
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| 103 | }, (_a = options.rootFunc) !== null && _a !== void 0 ? _a : boolbase_1.trueFunc);
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| 104 | }
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| 105 | function reduceRules(a, b) {
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| 106 | if (b === boolbase_1.falseFunc || a === boolbase_1.trueFunc) {
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| 107 | return a;
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| 108 | }
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| 109 | if (a === boolbase_1.falseFunc || b === boolbase_1.trueFunc) {
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| 110 | return b;
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| 111 | }
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| 112 | return function combine(elem) {
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| 113 | return a(elem) || b(elem);
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| 114 | };
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| 115 | }
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