| 1 | /**
|
| 2 | * @fileoverview Rule to flag references to the undefined variable.
|
| 3 | * @author Michael Ficarra
|
| 4 | */
|
| 5 | ;
|
| 6 |
|
| 7 | //------------------------------------------------------------------------------
|
| 8 | // Rule Definition
|
| 9 | //------------------------------------------------------------------------------
|
| 10 |
|
| 11 | module.exports = function(context) {
|
| 12 |
|
| 13 | return {
|
| 14 |
|
| 15 | "Identifier": function(node) {
|
| 16 | if (node.name === "undefined") {
|
| 17 | var parent = context.getAncestors().pop();
|
| 18 | if (!parent || parent.type !== "MemberExpression" || node !== parent.property || parent.computed) {
|
| 19 | context.report(node, "Unexpected use of undefined.");
|
| 20 | }
|
| 21 | }
|
| 22 | }
|
| 23 | };
|
| 24 |
|
| 25 | };
|
| 26 |
|
| 27 | module.exports.schema = [];
|