eslint-plugin-sonarjs/cjs/S6035/rule.js

SonarJS rules for ESLint

"use strict";
/*
 * SonarQube JavaScript Plugin
 * Copyright (C) 2011-2025 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the Sonar Source-Available License Version 1, as published by SonarSource SA.
 *
 * 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 Sonar Source-Available License for more details.
 *
 * You should have received a copy of the Sonar Source-Available License
 * along with this program; if not, see https://sonarsource.com/license/ssal/
 */
// https://sonarsource.github.io/rspec/#/rspec/S6035/javascript
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const index_js_1 = require("../helpers/index.js");
const meta_js_1 = require("./meta.js");
const rule_template_js_1 = require("../helpers/regex/rule-template.js");
exports.rule = (0, rule_template_js_1.createRegExpRule)(context => {
    function checkAlternation(alternation) {
        const { alternatives } = alternation;
        if (alternatives.length <= 1) {
            return;
        }
        if (alternatives.every(alt => alt.elements.length === 1 && alt.elements[0].type === 'Character')) {
            context.reportRegExpNode({
                message: 'Replace this alternation with a character class.',
                node: context.node,
                regexpNode: alternation,
            });
        }
    }
    return {
        onPatternEnter: checkAlternation,
        onGroupEnter: checkAlternation,
        onCapturingGroupEnter: checkAlternation,
        onAssertionEnter(node) {
            if (node.kind === 'lookahead' || node.kind === 'lookbehind') {
                checkAlternation(node);
            }
        },
    };
}, (0, index_js_1.generateMeta)(meta_js_1.meta));