@adguard/aglint/dist/linter/helpers/css-errors.js

Universal adblock filter list linter.

/*
 * AGLint v3.0.0 (build date: Wed, 21 May 2025 13:24:14 GMT)
 * (c) 2025 AdGuard Software Ltd.
 * Released under the MIT license
 * https://github.com/AdguardTeam/AGLint#readme
 */
import { isNumber } from '../../utils/type-guards.js';

/**
 * Check if the error is an instance of ErrorWithOffset.
 *
 * @param possibleError Possible error to check.
 *
 * @returns `true` if the error is an instance of ErrorWithOffset.
 */
const isErrorContainingOffset = (possibleError) => {
    if (!(possibleError instanceof Error)) {
        return false;
    }
    return 'offset' in possibleError && isNumber(possibleError.offset);
};
/**
 * Check if the error is an instance of SyntaxError, SyntaxMatchError or SyntaxReferenceError.
 *
 * Based on https://github.com/csstree/validator/blob/38e7319d7b049c190f04665df77c836646f3b35e/lib/validate.js#L5-L17
 *
 * @param possibleError Error to check.
 *
 * @returns `true` if the error is an instance of SyntaxError, SyntaxMatchError or SyntaxReferenceError.
 */
const isCssTreeSyntaxError = (possibleError) => {
    if (!possibleError || !(possibleError instanceof Error)) {
        return false;
    }
    if (!('name' in possibleError)) {
        return false;
    }
    return possibleError.name === 'SyntaxError'
        || possibleError.name === 'SyntaxMatchError'
        || possibleError.name === 'SyntaxReferenceError';
};

export { isCssTreeSyntaxError, isErrorContainingOffset };