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
|
/**
* @fileoverview Marks all var declarations that are not at the top level
* invalid.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
"use strict";
var helpers = require("../helpers");
module.exports = {
meta: {
docs: {
url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/rules/var-only-at-top-level.html",
},
messages: {
unexpectedVar: "Unexpected var, use let or const instead.",
},
schema: [],
type: "suggestion",
},
create(context) {
return {
VariableDeclaration(node) {
if (node.kind === "var") {
if (helpers.getIsTopLevelScript(context.getAncestors())) {
return;
}
context.report({
node,
messageId: "unexpectedVar",
});
}
},
};
},
};
|
