eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
58 lines (57 loc) • 2.66 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/S3785/javascript
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const typescript_1 = __importDefault(require("typescript"));
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, undefined, true),
create(context) {
const services = context.sourceCode.parserServices;
if (!(0, index_js_1.isRequiredParserServices)(services)) {
return {};
}
function isPrimitive(node) {
const type = (0, index_js_1.getTypeFromTreeNode)(node, services);
return ((type.flags & typescript_1.default.TypeFlags.StringLike) !== 0 ||
(type.flags & typescript_1.default.TypeFlags.NumberLike) !== 0 ||
(type.flags & typescript_1.default.TypeFlags.BooleanLike) !== 0 ||
(type.flags & typescript_1.default.TypeFlags.Null) !== 0 ||
(type.flags & typescript_1.default.TypeFlags.Undefined) !== 0);
}
return {
'BinaryExpression[operator="in"]': (node) => {
const { left, right, operator } = node;
if (isPrimitive(right)) {
const opToken = context.sourceCode
.getTokensBetween(left, right)
.find(token => token.type === 'Keyword' && token.value === operator);
(0, index_js_1.report)(context, {
message: 'TypeError can be thrown as this operand might have primitive type.',
node: right,
}, [(0, index_js_1.toSecondaryLocation)(opToken)]);
}
},
};
},
};