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Configuration error
Configuration error
File size: 916 Bytes
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'use strict';
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;
};
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