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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);
};
}