129 lines
5.1 KiB
JavaScript
129 lines
5.1 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || (function () {
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var ownKeys = function(o) {
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ownKeys = Object.getOwnPropertyNames || function (o) {
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var ar = [];
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for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
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return ar;
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};
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return ownKeys(o);
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};
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return function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
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__setModuleDefault(result, mod);
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return result;
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.compileToken = compileToken;
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const boolbase = __importStar(require("boolbase"));
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const css_what_1 = require("css-what");
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const general_js_1 = require("./general.js");
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const querying_js_1 = require("./helpers/querying.js");
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const selectors_js_1 = require("./helpers/selectors.js");
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const subselects_js_1 = require("./pseudo-selectors/subselects.js");
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const DESCENDANT_TOKEN = { type: css_what_1.SelectorType.Descendant };
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const FLEXIBLE_DESCENDANT_TOKEN = {
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type: "_flexibleDescendant",
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};
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const SCOPE_TOKEN = {
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type: css_what_1.SelectorType.Pseudo,
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name: "scope",
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data: null,
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};
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/*
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* CSS 4 Spec (Draft): 3.4.1. Absolutizing a Relative Selector
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* http://www.w3.org/TR/selectors4/#absolutizing
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*/
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function absolutize(token, { adapter }, context) {
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// TODO Use better check if the context is a document
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const hasContext = !!context?.every((e) => e === subselects_js_1.PLACEHOLDER_ELEMENT ||
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(adapter.isTag(e) && (0, querying_js_1.getElementParent)(e, adapter) !== null));
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for (const t of token) {
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if (t.length > 0 &&
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(0, selectors_js_1.isTraversal)(t[0]) &&
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t[0].type !== css_what_1.SelectorType.Descendant) {
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// Don't continue in else branch
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}
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else if (hasContext && !t.some(selectors_js_1.includesScopePseudo)) {
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t.unshift(DESCENDANT_TOKEN);
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}
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else {
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continue;
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}
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t.unshift(SCOPE_TOKEN);
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}
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}
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function compileToken(token, options, ctx) {
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token.forEach(selectors_js_1.sortRules);
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const { context = ctx, rootFunc = boolbase.trueFunc } = options;
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const isArrayContext = Array.isArray(context);
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const finalContext = context && (Array.isArray(context) ? context : [context]);
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// Check if the selector is relative
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if (options.relativeSelector !== false) {
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absolutize(token, options, finalContext);
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}
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else if (token.some((t) => t.length > 0 && (0, selectors_js_1.isTraversal)(t[0]))) {
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throw new Error("Relative selectors are not allowed when the `relativeSelector` option is disabled");
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}
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let shouldTestNextSiblings = false;
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let query = boolbase.falseFunc;
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combineLoop: for (const rules of token) {
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if (rules.length >= 2) {
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const [first, second] = rules;
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if (first.type !== css_what_1.SelectorType.Pseudo || first.name !== "scope") {
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// Ignore
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}
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else if (isArrayContext &&
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second.type === css_what_1.SelectorType.Descendant) {
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rules[1] = FLEXIBLE_DESCENDANT_TOKEN;
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}
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else if (second.type === css_what_1.SelectorType.Adjacent ||
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second.type === css_what_1.SelectorType.Sibling) {
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shouldTestNextSiblings = true;
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}
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}
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let next = rootFunc;
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let hasExpensiveSubselector = false;
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for (const rule of rules) {
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next = (0, general_js_1.compileGeneralSelector)(next, rule, options, finalContext, compileToken, hasExpensiveSubselector);
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const quality = (0, selectors_js_1.getQuality)(rule);
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if (quality === 0) {
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hasExpensiveSubselector = true;
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}
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// If the sub-selector won't match any elements, skip it.
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if (next === boolbase.falseFunc) {
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continue combineLoop;
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}
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}
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// If we have a function that always returns true, we can stop here.
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if (next === rootFunc) {
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return rootFunc;
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}
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query = query === boolbase.falseFunc ? next : or(query, next);
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}
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query.shouldTestNextSiblings = shouldTestNextSiblings;
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return query;
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}
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function or(a, b) {
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return (elem) => a(elem) || b(elem);
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}
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//# sourceMappingURL=compile.js.map
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