.gitignore added
[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / eslint / lib / rules / no-class-assign.js
1 /**
2  * @fileoverview A rule to disallow modifying variables of class declarations
3  * @author Toru Nagashima
4  */
5
6 "use strict";
7
8 const astUtils = require("./utils/ast-utils");
9
10 //------------------------------------------------------------------------------
11 // Rule Definition
12 //------------------------------------------------------------------------------
13
14 module.exports = {
15     meta: {
16         type: "problem",
17
18         docs: {
19             description: "disallow reassigning class members",
20             category: "ECMAScript 6",
21             recommended: true,
22             url: "https://eslint.org/docs/rules/no-class-assign"
23         },
24
25         schema: [],
26
27         messages: {
28             class: "'{{name}}' is a class."
29         }
30     },
31
32     create(context) {
33
34         /**
35          * Finds and reports references that are non initializer and writable.
36          * @param {Variable} variable A variable to check.
37          * @returns {void}
38          */
39         function checkVariable(variable) {
40             astUtils.getModifyingReferences(variable.references).forEach(reference => {
41                 context.report({ node: reference.identifier, messageId: "class", data: { name: reference.identifier.name } });
42
43             });
44         }
45
46         /**
47          * Finds and reports references that are non initializer and writable.
48          * @param {ASTNode} node A ClassDeclaration/ClassExpression node to check.
49          * @returns {void}
50          */
51         function checkForClass(node) {
52             context.getDeclaredVariables(node).forEach(checkVariable);
53         }
54
55         return {
56             ClassDeclaration: checkForClass,
57             ClassExpression: checkForClass
58         };
59
60     }
61 };