eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
91 lines (90 loc) • 4.05 kB
JavaScript
;
/*
* SonarQube JavaScript Plugin
* Copyright (C) 2011-2024 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 GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// https://sonarsource.github.io/rspec/#/rspec/S3525/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 (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.rule = void 0;
const ts = __importStar(require("typescript"));
const helpers_1 = require("../helpers");
const meta_1 = require("./meta");
exports.rule = {
meta: (0, helpers_1.generateMeta)(meta_1.meta, {
messages: {
declareClass: 'Declare a "{{class}}" class and move this declaration of "{{declaration}}" into it.',
},
}),
create(context) {
const services = context.sourceCode.parserServices;
const isFunction = (0, helpers_1.isRequiredParserServices)(services) ? isFunctionType : isFunctionLike;
return {
AssignmentExpression: (node) => {
const { left, right } = node;
if (left.type === 'MemberExpression' && isFunction(right, services)) {
const [member, prototype] = [left.object, left.property];
if (member.type === 'MemberExpression' && prototype.type === 'Identifier') {
const [klass, property] = [member.object, member.property];
if (klass.type === 'Identifier' &&
property.type === 'Identifier' &&
property.name === 'prototype') {
context.report({
messageId: 'declareClass',
data: {
class: klass.name,
declaration: prototype.name,
},
node: left,
});
}
}
}
},
};
},
};
function isFunctionType(node, services) {
const type = (0, helpers_1.getTypeFromTreeNode)(node, services);
return type.symbol && (type.symbol.flags & ts.SymbolFlags.Function) !== 0;
}
function isFunctionLike(node, _services) {
return ['FunctionDeclaration', 'FunctionExpression', 'ArrowFunctionExpression'].includes(node.type);
}