'use strict'; | |
var $TypeError = require('es-errors/type'); | |
var callBound = require('call-bound'); | |
var $SymbolToString = callBound('Symbol.prototype.toString', true); | |
// https://262.ecma-international.org/6.0/#sec-symboldescriptivestring | |
module.exports = function SymbolDescriptiveString(sym) { | |
if (typeof sym !== 'symbol') { | |
throw new $TypeError('Assertion failed: `sym` must be a Symbol'); | |
} | |
return $SymbolToString(sym); | |
}; |