eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
127 lines (126 loc) • 4.82 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/S1848/javascript
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const index_js_1 = require("../helpers/index.js");
const meta = __importStar(require("./generated-meta.js"));
exports.rule = {
meta: (0, index_js_1.generateMeta)(meta, {
messages: {
removeInstantiationOf: 'Either remove this useless object instantiation of "{{constructor}}" or use it.',
removeInstantiation: 'Either remove this useless object instantiation or use it.',
},
}),
create(context) {
const sourceCode = context.sourceCode;
return {
'ExpressionStatement > NewExpression': (node) => {
if (isTryable(node, context)) {
return;
}
const { callee } = node;
if (callee.type === 'Identifier' || callee.type === 'MemberExpression') {
const calleeText = sourceCode.getText(callee);
if (isException(context, callee, calleeText)) {
return;
}
const reportLocation = {
start: node.loc.start,
end: callee.loc.end,
};
reportIssue(reportLocation, `${calleeText}`, 'removeInstantiationOf', context);
}
else {
const newToken = sourceCode.getFirstToken(node);
reportIssue(newToken.loc, '', 'removeInstantiation', context);
}
},
};
},
};
function isTryable(node, context) {
const ancestors = context.sourceCode.getAncestors(node);
let parent = undefined;
let child = node;
while ((parent = ancestors.pop()) !== undefined) {
if (parent.type === 'TryStatement' && parent.block === child) {
return true;
}
child = parent;
}
return false;
}
function reportIssue(loc, objectText, messageId, context) {
context.report({
messageId,
data: {
constructor: objectText,
},
loc,
});
}
/**
* These exceptions are based on community requests and Peach
*/
function isException(context, node, name) {
if (name === 'Notification') {
return true;
}
const fqn = (0, index_js_1.getFullyQualifiedName)(context, node);
if (!fqn) {
return false;
}
const exactExceptions = ['vue', '@ag-grid-community.core.Grid'];
const startsWithExceptions = ['aws-cdk-lib', 'cdk8s', '@pulumi'];
return (exactExceptions.includes(fqn) ||
startsWithExceptions.some(exception => fqn.startsWith(exception)));
}