eslint-plugin-sonarjs
Version:
SonarJS rules for ESLint
99 lines (98 loc) • 3.73 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/S881/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: {
extractOperation: 'Extract this {{incrementType}} operation into a dedicated statement.',
},
}),
create(context) {
function reportUpdateExpression(node) {
context.report({
messageId: 'extractOperation',
data: {
incrementType: node.operator === '++' ? 'increment' : 'decrement',
},
node,
});
}
return {
UpdateExpression(node) {
if (!isIgnored(node, context.sourceCode.getAncestors(node))) {
reportUpdateExpression(node);
}
},
};
},
};
function isIgnored(node, ancestors) {
const firstAncestor = ancestors.pop();
if (firstAncestor) {
switch (firstAncestor.type) {
case 'ExpressionStatement':
return true;
case 'ForStatement':
return firstAncestor.update === node;
case 'SequenceExpression': {
const secondAncestor = ancestors.pop();
return (secondAncestor !== undefined &&
secondAncestor.type === 'ForStatement' &&
secondAncestor.update === firstAncestor);
}
}
}
return false;
}