eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
55 lines (54 loc) • 2.22 kB
JavaScript
;
/*
* 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/S1479
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 DEFAULT_MAX_SWITCH_CASES = 30;
exports.rule = {
meta: (0, index_js_1.generateMeta)(meta_js_1.meta, {
messages: {
reduceNumberOfNonEmptySwitchCases: 'Reduce the number of non-empty switch cases from {{numSwitchCases}} to at most {{maxSwitchCases}}.',
},
schema: meta_js_1.schema,
}),
create(context) {
const maxSwitchCases = context.options[0] ?? DEFAULT_MAX_SWITCH_CASES;
return {
SwitchStatement: (node) => visitSwitchStatement(node, context, maxSwitchCases),
};
},
};
function visitSwitchStatement(switchStatement, context, maxSwitchCases) {
const nonEmptyCases = switchStatement.cases.filter(switchCase => switchCase.consequent.length > 0 && !isDefaultCase(switchCase));
if (nonEmptyCases.length > maxSwitchCases) {
const switchKeyword = context.sourceCode.getFirstToken(switchStatement);
context.report({
messageId: 'reduceNumberOfNonEmptySwitchCases',
loc: switchKeyword.loc,
data: {
numSwitchCases: nonEmptyCases.length.toString(),
maxSwitchCases: maxSwitchCases.toString(),
},
});
}
}
function isDefaultCase(switchCase) {
return switchCase.test === null;
}