.config/coc/extensions/node_modules/coc-prettier/node_modules/core-js/modules/es.promise.finally.js

   1 'use strict';
   2 var $ = require('../internals/export');
   3 var IS_PURE = require('../internals/is-pure');
   4 var NativePromise = require('../internals/native-promise-constructor');
   5 var fails = require('../internals/fails');
   6 var getBuiltIn = require('../internals/get-built-in');
   7 var isCallable = require('../internals/is-callable');
   8 var speciesConstructor = require('../internals/species-constructor');
   9 var promiseResolve = require('../internals/promise-resolve');
  10 var redefine = require('../internals/redefine');
  11
  12 // Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829
  13 var NON_GENERIC = !!NativePromise && fails(function () {
  14   NativePromise.prototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });
  15 });
  16
  17 // `Promise.prototype.finally` method
  18 // https://tc39.es/ecma262/#sec-promise.prototype.finally
  19 $({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {
  20   'finally': function (onFinally) {
  21     var C = speciesConstructor(this, getBuiltIn('Promise'));
  22     var isFunction = isCallable(onFinally);
  23     return this.then(
  24       isFunction ? function (x) {
  25         return promiseResolve(C, onFinally()).then(function () { return x; });
  26       } : onFinally,
  27       isFunction ? function (e) {
  28         return promiseResolve(C, onFinally()).then(function () { throw e; });
  29       } : onFinally
  30     );
  31   }
  32 });
  33
  34 // makes sure that native promise-based APIs `Promise#finally` properly works with patched `Promise#then`
  35 if (!IS_PURE && isCallable(NativePromise)) {
  36   var method = getBuiltIn('Promise').prototype['finally'];
  37   if (NativePromise.prototype['finally'] !== method) {
  38     redefine(NativePromise.prototype, 'finally', method, { unsafe: true });
  39   }
  40 }