| 'use strict'; |
| |
| var GetIntrinsic = require('../GetIntrinsic'); |
| |
| var callBound = require('./callBound'); |
| |
| var $SyntaxError = GetIntrinsic('%SyntaxError%'); |
| var symToStr = callBound('Symbol.prototype.toString', true); |
| |
| var getInferredName = require('./getInferredName'); |
| |
| module.exports = function getSymbolDescription(symbol) { |
| if (!symToStr) { |
| throw new $SyntaxError('Symbols are not supported in this environment'); |
| } |
| var str = symToStr(symbol); // will throw if not a symbol |
| |
| if (getInferredName) { |
| var name = getInferredName(symbol); |
| if (name === '') { return; } |
| // eslint-disable-next-line consistent-return |
| return name.slice(1, -1); // name.slice('['.length, -']'.length); |
| } |
| |
| var desc = str.slice(7, -1); // str.slice('Symbol('.length, -')'.length); |
| if (desc) { |
| // eslint-disable-next-line consistent-return |
| return desc; |
| } |
| }; |