no-class-assign.js
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/**
* @fileoverview A rule to disallow modifying variables of class declarations
* @author Toru Nagashima
* @copyright 2015 Toru Nagashima. All rights reserved.
*/
"use strict";
var astUtils = require("../ast-utils");
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = function(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(function(reference) {
context.report(
reference.identifier,
"`{{name}}` is a class.",
{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
};
};
module.exports.schema = [];