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eslint-plugin-sonarjs

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"use strict"; /* * 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/S4324/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 helpers_1 = require("../helpers"); const ts = __importStar(require("typescript")); const meta_1 = require("./meta"); exports.rule = { meta: (0, helpers_1.generateMeta)(meta_1.meta, { messages: { removeOrChangeType: 'Remove this return type or change it to a more specific.', }, }), create(context) { const services = context.sourceCode.parserServices; if ((0, helpers_1.isRequiredParserServices)(services)) { const returnedExpressions = []; return { ReturnStatement(node) { if (returnedExpressions.length > 0) { returnedExpressions[returnedExpressions.length - 1].push(node.argument); } }, FunctionDeclaration() { returnedExpressions.push([]); }, 'FunctionDeclaration:exit'(node) { const returnType = node.returnType; if (returnType && returnType.typeAnnotation.type === 'TSAnyKeyword' && returnedExpressions.length > 0 && allReturnTypesEqual(returnedExpressions[returnedExpressions.length - 1], services)) { context.report({ messageId: 'removeOrChangeType', loc: returnType.loc, }); } returnedExpressions.pop(); }, }; } return {}; }, }; function allReturnTypesEqual(returns, services) { const firstReturnType = getTypeFromTreeNode(returns.pop(), services); if (!!firstReturnType && !!isPrimitiveType(firstReturnType)) { return returns.every(nextReturn => { const nextReturnType = getTypeFromTreeNode(nextReturn, services); return !!nextReturnType && nextReturnType.flags === firstReturnType.flags; }); } return false; } function getTypeFromTreeNode(node, services) { const checker = services.program.getTypeChecker(); return checker.getTypeAtLocation(services.esTreeNodeToTSNodeMap.get(node)); } function isPrimitiveType({ flags }) { return (flags & ts.TypeFlags.BooleanLike || flags & ts.TypeFlags.NumberLike || flags & ts.TypeFlags.StringLike || flags & ts.TypeFlags.EnumLike); }