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/**
* @fileoverview Rule to flag for-in loops without if statements inside
* @author Nicholas C. Zakas
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = function(context) {
return {
"ForInStatement": function(node) {
/*
* If the for-in statement has {}, then the real body is the body
* of the BlockStatement. Otherwise, just use body as provided.
*/
var body = node.body.type === "BlockStatement" ? node.body.body[0] : node.body;
if (body && body.type !== "IfStatement") {
context.report(node, "The body of a for-in should be wrapped in an if statement to filter unwanted properties from the prototype.");
}
}
};
};
module.exports.schema = [];
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