eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
63 lines (62 loc) • 2.62 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/S1125
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");
exports.rule = {
meta: (0, index_js_1.generateMeta)(meta_js_1.meta, {
messages: {
removeUnnecessaryBoolean: 'Refactor the code to avoid using this boolean literal.',
},
}),
create(context) {
return {
BinaryExpression(expression) {
if (expression.operator === '==' || expression.operator === '!=') {
checkBooleanLiteral(expression.left);
checkBooleanLiteral(expression.right);
}
},
LogicalExpression(expression) {
checkBooleanLiteral(expression.left);
if (expression.operator === '&&') {
checkBooleanLiteral(expression.right);
}
// ignore `x || true` and `x || false` expressions outside of conditional expressions and `if` statements
const parent = expression.parent;
if (expression.operator === '||' &&
((parent.type === 'ConditionalExpression' && parent.test === expression) ||
parent.type === 'IfStatement')) {
checkBooleanLiteral(expression.right);
}
},
UnaryExpression(unaryExpression) {
if (unaryExpression.operator === '!') {
checkBooleanLiteral(unaryExpression.argument);
}
},
};
function checkBooleanLiteral(expression) {
if ((0, index_js_1.isBooleanLiteral)(expression)) {
context.report({ messageId: 'removeUnnecessaryBoolean', node: expression });
}
}
},
};