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Configuration error
Configuration error
| ; | |
| var supportsDescriptors = require('define-properties').supportsDescriptors; | |
| var functionsHaveNames = require('functions-have-names')(); | |
| var getPolyfill = require('./polyfill'); | |
| var defineProperty = Object.defineProperty; | |
| var TypeErr = TypeError; | |
| module.exports = function shimName() { | |
| var polyfill = getPolyfill(); | |
| if (functionsHaveNames) { | |
| return polyfill; | |
| } | |
| if (!supportsDescriptors) { | |
| throw new TypeErr('Shimming Function.prototype.name support requires ES5 property descriptor support.'); | |
| } | |
| var functionProto = Function.prototype; | |
| defineProperty(functionProto, 'name', { | |
| configurable: true, | |
| enumerable: false, | |
| get: function () { | |
| var name = polyfill.call(this); | |
| if (this !== functionProto) { | |
| defineProperty(this, 'name', { | |
| configurable: true, | |
| enumerable: false, | |
| value: name, | |
| writable: false | |
| }); | |
| } | |
| return name; | |
| } | |
| }); | |
| return polyfill; | |
| }; | |