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/*
* Copyright (C) 2023 Yomitan Authors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import {ExtensionError} from '../core/extension-error.js';
/**
* @param {Element|Document|DocumentFragment} element
* @param {string} selector
* @returns {ExtensionError}
*/
function createError(element, selector) {
const error = new ExtensionError(`Performing querySelectorNotNull(element, ${JSON.stringify(selector)}) returned null`);
error.data = {element, selector};
return error;
}
/**
* @template {Element} T
* @param {Element|Document|DocumentFragment} element
* @param {string} selector
* @returns {T}
* @throws {Error}
*/
export function querySelectorNotNull(element, selector) {
/** @type {?T} */
const result = element.querySelector(selector);
if (result === null) { throw createError(element, selector); }
return result;
}
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