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