d9b8758f47
PR-URL: https://github.com/nodejs/node/pull/6132 Reviewed-By: Brian White <mscdex@mscdex.net> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: thefourtheye <thechargingvolcano@gmail.com>
47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
/**
|
|
* @fileoverview Rule to flag use of an empty block statement
|
|
* @author Nicholas C. Zakas
|
|
* @copyright Nicholas C. Zakas. All rights reserved.
|
|
* @copyright 2015 Dieter Oberkofler. All rights reserved.
|
|
*/
|
|
"use strict";
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Rule Definition
|
|
//------------------------------------------------------------------------------
|
|
|
|
var FUNCTION_TYPE = /^(?:ArrowFunctionExpression|Function(?:Declaration|Expression))$/;
|
|
|
|
module.exports = function(context) {
|
|
return {
|
|
"BlockStatement": function(node) {
|
|
|
|
// if the body is not empty, we can just return immediately
|
|
if (node.body.length !== 0) {
|
|
return;
|
|
}
|
|
|
|
// a function is generally allowed to be empty
|
|
if (FUNCTION_TYPE.test(node.parent.type)) {
|
|
return;
|
|
}
|
|
|
|
// any other block is only allowed to be empty, if it contains a comment
|
|
if (context.getComments(node).trailing.length > 0) {
|
|
return;
|
|
}
|
|
|
|
context.report(node, "Empty block statement.");
|
|
},
|
|
|
|
"SwitchStatement": function(node) {
|
|
|
|
if (typeof node.cases === "undefined" || node.cases.length === 0) {
|
|
context.report(node, "Empty switch statement.");
|
|
}
|
|
}
|
|
};
|
|
|
|
};
|
|
|
|
module.exports.schema = [];
|