no-shadow-restricted-names.js
1.66 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
/**
* @fileoverview Disallow shadowing of NaN, undefined, and Infinity (ES5 section 15.1.1)
* @author Michael Ficarra
* @copyright 2013 Michael Ficarra. All rights reserved.
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = function(context) {
var RESTRICTED = ["undefined", "NaN", "Infinity", "arguments", "eval"];
/**
* Check if the node name is present inside the restricted list
* @param {ASTNode} id id to evaluate
* @returns {void}
* @private
*/
function checkForViolation(id) {
if (RESTRICTED.indexOf(id.name) > -1) {
context.report(id, "Shadowing of global property \"" + id.name + "\".");
}
}
return {
"VariableDeclarator": function(node) {
checkForViolation(node.id);
},
"ArrowFunctionExpression": function(node) {
if (node.id) {
checkForViolation(node.id);
}
[].map.call(node.params, checkForViolation);
},
"FunctionExpression": function(node) {
if (node.id) {
checkForViolation(node.id);
}
[].map.call(node.params, checkForViolation);
},
"FunctionDeclaration": function(node) {
if (node.id) {
checkForViolation(node.id);
[].map.call(node.params, checkForViolation);
}
},
"CatchClause": function(node) {
checkForViolation(node.param);
}
};
};
module.exports.schema = [];