1"use strict"; 2module.exports = function(Promise, INTERNAL, tryConvertToPromise, debug) { 3var calledBind = false; 4var rejectThis = function(_, e) { 5 this._reject(e); 6}; 7 8var targetRejected = function(e, context) { 9 context.promiseRejectionQueued = true; 10 context.bindingPromise._then(rejectThis, rejectThis, null, this, e); 11}; 12 13var bindingResolved = function(thisArg, context) { 14 if (((this._bitField & 50397184) === 0)) { 15 this._resolveCallback(context.target); 16 } 17}; 18 19var bindingRejected = function(e, context) { 20 if (!context.promiseRejectionQueued) this._reject(e); 21}; 22 23Promise.prototype.bind = function (thisArg) { 24 if (!calledBind) { 25 calledBind = true; 26 Promise.prototype._propagateFrom = debug.propagateFromFunction(); 27 Promise.prototype._boundValue = debug.boundValueFunction(); 28 } 29 var maybePromise = tryConvertToPromise(thisArg); 30 var ret = new Promise(INTERNAL); 31 ret._propagateFrom(this, 1); 32 var target = this._target(); 33 ret._setBoundTo(maybePromise); 34 if (maybePromise instanceof Promise) { 35 var context = { 36 promiseRejectionQueued: false, 37 promise: ret, 38 target: target, 39 bindingPromise: maybePromise 40 }; 41 target._then(INTERNAL, targetRejected, undefined, ret, context); 42 maybePromise._then( 43 bindingResolved, bindingRejected, undefined, ret, context); 44 ret._setOnCancel(maybePromise); 45 } else { 46 ret._resolveCallback(target); 47 } 48 return ret; 49}; 50 51Promise.prototype._setBoundTo = function (obj) { 52 if (obj !== undefined) { 53 this._bitField = this._bitField | 2097152; 54 this._boundTo = obj; 55 } else { 56 this._bitField = this._bitField & (~2097152); 57 } 58}; 59 60Promise.prototype._isBound = function () { 61 return (this._bitField & 2097152) === 2097152; 62}; 63 64Promise.bind = function (thisArg, value) { 65 return Promise.resolve(value).bind(thisArg); 66}; 67}; 68