blob: a537268e38dc1d9e9e15e3f64fbabff2b02a36fd [file] [log] [blame]
/**
* @fileoverview Rule to disallow use of the new operator with the `Symbol` object
* @author Alberto Rodríguez
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "disallow `new` operators with the `Symbol` object",
category: "ECMAScript 6",
recommended: true,
url: "https://eslint.org/docs/rules/no-new-symbol"
},
schema: []
},
create(context) {
return {
"Program:exit"() {
const globalScope = context.getScope();
const variable = globalScope.set.get("Symbol");
if (variable && variable.defs.length === 0) {
variable.references.forEach(ref => {
const node = ref.identifier;
if (node.parent && node.parent.type === "NewExpression") {
context.report({ node, message: "`Symbol` cannot be called as a constructor." });
}
});
}
}
};
}
};