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musix-oss/node_modules/core-js/modules/es.function.name.js

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2020-03-03 20:30:50 +00:00
var DESCRIPTORS = require('../internals/descriptors');
var defineProperty = require('../internals/object-define-property').f;
var FunctionPrototype = Function.prototype;
var FunctionPrototypeToString = FunctionPrototype.toString;
var nameRE = /^\s*function ([^ (]*)/;
var NAME = 'name';
// Function instances `.name` property
// https://tc39.github.io/ecma262/#sec-function-instances-name
if (DESCRIPTORS && !(NAME in FunctionPrototype)) {
defineProperty(FunctionPrototype, NAME, {
configurable: true,
get: function () {
try {
return FunctionPrototypeToString.call(this).match(nameRE)[1];
} catch (error) {
return '';
}
}
});
}