| /** |
| * @fileoverview A rule to disallow modifying variables of class declarations |
| * @author Toru Nagashima |
| */ |
| |
| "use strict"; |
| |
| const astUtils = require("./utils/ast-utils"); |
| |
| //------------------------------------------------------------------------------ |
| // Rule Definition |
| //------------------------------------------------------------------------------ |
| |
| module.exports = { |
| meta: { |
| type: "problem", |
| |
| docs: { |
| description: "disallow reassigning class members", |
| category: "ECMAScript 6", |
| recommended: true, |
| url: "https://eslint.org/docs/rules/no-class-assign" |
| }, |
| |
| schema: [], |
| |
| messages: { |
| class: "'{{name}}' is a class." |
| } |
| }, |
| |
| create(context) { |
| |
| /** |
| * Finds and reports references that are non initializer and writable. |
| * @param {Variable} variable - A variable to check. |
| * @returns {void} |
| */ |
| function checkVariable(variable) { |
| astUtils.getModifyingReferences(variable.references).forEach(reference => { |
| context.report({ node: reference.identifier, messageId: "class", data: { name: reference.identifier.name } }); |
| |
| }); |
| } |
| |
| /** |
| * Finds and reports references that are non initializer and writable. |
| * @param {ASTNode} node - A ClassDeclaration/ClassExpression node to check. |
| * @returns {void} |
| */ |
| function checkForClass(node) { |
| context.getDeclaredVariables(node).forEach(checkVariable); |
| } |
| |
| return { |
| ClassDeclaration: checkForClass, |
| ClassExpression: checkForClass |
| }; |
| |
| } |
| }; |