node/tools/eslint/lib/rules/no-lonely-if.js
Roman Reiss d91e10b3bd tools: update eslint to 0.24.0
PR-URL: https://github.com/nodejs/io.js/pull/2072
Reviewed-By: Yosuke Furukawa <yosuke.furukawa@gmail.com>
Reviewed-by: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Alex Kocharin <alex@kocharin.ru>
2015-06-29 19:02:17 +02:00

31 lines
937 B
JavaScript

/**
* @fileoverview Rule to disallow if as the only statmenet in an else block
* @author Brandon Mills
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = function(context) {
return {
"IfStatement": function(node) {
var ancestors = context.getAncestors(),
parent = ancestors.pop(),
grandparent = ancestors.pop();
if (parent && parent.type === "BlockStatement" &&
parent.body.length === 1 && grandparent &&
grandparent.type === "IfStatement" &&
parent === grandparent.alternate) {
context.report(node, "Unexpected if as the only statement in an else block.");
}
}
};
};
module.exports.schema = [];