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- 'use strict';
- var GetIntrinsic = require('get-intrinsic');
- var callBound = require('call-bind/callBound');
- var $SyntaxError = GetIntrinsic('%SyntaxError%');
- var getGlobalSymbolDescription = GetIntrinsic('%Symbol.keyFor%', true);
- var thisSymbolValue = callBound('%Symbol.prototype.valueOf%', true);
- var symToStr = callBound('Symbol.prototype.toString', true);
- var getInferredName = require('./getInferredName');
- module.exports = callBound('%Symbol.prototype.description%', true) || function getSymbolDescription(symbol) {
- if (!thisSymbolValue) {
- throw new $SyntaxError('Symbols are not supported in this environment');
- }
-
- var sym = thisSymbolValue(symbol);
- if (getInferredName) {
- var name = getInferredName(sym);
- if (name === '') {
- return;
- }
- return name.slice(1, -1);
- }
- var desc;
- if (getGlobalSymbolDescription) {
- desc = getGlobalSymbolDescription(sym);
- if (typeof desc === 'string') {
- return desc;
- }
- }
- desc = symToStr(sym).slice(7, -1);
- if (desc) {
- return desc;
- }
- };
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