charlike
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Small, fast, simple and streaming project scaffolder for myself, but not only. Supports hundreds of template engines through the @JSTransformers API or if you want custom `render` function passed through options
44 lines (34 loc) • 1.2 kB
JavaScript
/**
* @fileoverview Rule to disallow use of the new operator with the `Symbol` object
* @author Alberto Rodríguez
*/
;
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "disallow `new` operators with the `Symbol` object",
category: "ECMAScript 6",
recommended: true
},
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, "`Symbol` cannot be called as a constructor.");
}
});
}
}
};
}
};