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- "use strict";
- var __importDefault = (this && this.__importDefault) || function (mod) {
- return (mod && mod.__esModule) ? mod : { "default": mod };
- };
- Object.defineProperty(exports, "__esModule", { value: true });
- exports.compileToken = exports.compileUnsafe = exports.compile = void 0;
- var css_what_1 = require("css-what");
- var boolbase_1 = require("boolbase");
- var sort_1 = __importDefault(require("./sort"));
- var procedure_1 = require("./procedure");
- var general_1 = require("./general");
- var subselects_1 = require("./pseudo-selectors/subselects");
- /**
- * Compiles a selector to an executable function.
- *
- * @param selector Selector to compile.
- * @param options Compilation options.
- * @param context Optional context for the selector.
- */
- function compile(selector, options, context) {
- var next = compileUnsafe(selector, options, context);
- return (0, subselects_1.ensureIsTag)(next, options.adapter);
- }
- exports.compile = compile;
- function compileUnsafe(selector, options, context) {
- var token = typeof selector === "string" ? (0, css_what_1.parse)(selector) : selector;
- return compileToken(token, options, context);
- }
- exports.compileUnsafe = compileUnsafe;
- function includesScopePseudo(t) {
- return (t.type === "pseudo" &&
- (t.name === "scope" ||
- (Array.isArray(t.data) &&
- t.data.some(function (data) { return data.some(includesScopePseudo); }))));
- }
- var DESCENDANT_TOKEN = { type: css_what_1.SelectorType.Descendant };
- var FLEXIBLE_DESCENDANT_TOKEN = {
- type: "_flexibleDescendant",
- };
- var SCOPE_TOKEN = {
- type: css_what_1.SelectorType.Pseudo,
- name: "scope",
- data: null,
- };
- /*
- * CSS 4 Spec (Draft): 3.3.1. Absolutizing a Scope-relative Selector
- * http://www.w3.org/TR/selectors4/#absolutizing
- */
- function absolutize(token, _a, context) {
- var adapter = _a.adapter;
- // TODO Use better check if the context is a document
- var hasContext = !!(context === null || context === void 0 ? void 0 : context.every(function (e) {
- var parent = adapter.isTag(e) && adapter.getParent(e);
- return e === subselects_1.PLACEHOLDER_ELEMENT || (parent && adapter.isTag(parent));
- }));
- for (var _i = 0, token_1 = token; _i < token_1.length; _i++) {
- var t = token_1[_i];
- if (t.length > 0 && (0, procedure_1.isTraversal)(t[0]) && t[0].type !== "descendant") {
- // Don't continue in else branch
- }
- else if (hasContext && !t.some(includesScopePseudo)) {
- t.unshift(DESCENDANT_TOKEN);
- }
- else {
- continue;
- }
- t.unshift(SCOPE_TOKEN);
- }
- }
- function compileToken(token, options, context) {
- var _a;
- token = token.filter(function (t) { return t.length > 0; });
- token.forEach(sort_1.default);
- context = (_a = options.context) !== null && _a !== void 0 ? _a : context;
- var isArrayContext = Array.isArray(context);
- var finalContext = context && (Array.isArray(context) ? context : [context]);
- absolutize(token, options, finalContext);
- var shouldTestNextSiblings = false;
- var query = token
- .map(function (rules) {
- if (rules.length >= 2) {
- var first = rules[0], second = rules[1];
- if (first.type !== "pseudo" || first.name !== "scope") {
- // Ignore
- }
- else if (isArrayContext && second.type === "descendant") {
- rules[1] = FLEXIBLE_DESCENDANT_TOKEN;
- }
- else if (second.type === "adjacent" ||
- second.type === "sibling") {
- shouldTestNextSiblings = true;
- }
- }
- return compileRules(rules, options, finalContext);
- })
- .reduce(reduceRules, boolbase_1.falseFunc);
- query.shouldTestNextSiblings = shouldTestNextSiblings;
- return query;
- }
- exports.compileToken = compileToken;
- function compileRules(rules, options, context) {
- var _a;
- return rules.reduce(function (previous, rule) {
- return previous === boolbase_1.falseFunc
- ? boolbase_1.falseFunc
- : (0, general_1.compileGeneralSelector)(previous, rule, options, context, compileToken);
- }, (_a = options.rootFunc) !== null && _a !== void 0 ? _a : boolbase_1.trueFunc);
- }
- function reduceRules(a, b) {
- if (b === boolbase_1.falseFunc || a === boolbase_1.trueFunc) {
- return a;
- }
- if (a === boolbase_1.falseFunc || b === boolbase_1.trueFunc) {
- return b;
- }
- return function combine(elem) {
- return a(elem) || b(elem);
- };
- }
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