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JavaScript

"use strict";
module.exports = function() {
var makeSelfResolutionError = function () {
return new TypeError("circular promise resolution chain\u000a\u000a See http://goo.gl/LhFpo0\u000a");
};
var reflect = function() {
return new Promise.PromiseInspection(this._target());
};
var apiRejection = function(msg) {
return Promise.reject(new TypeError(msg));
};
var util = require("./util.js");
var getDomain;
if (util.isNode) {
getDomain = function() {
var ret = process.domain;
if (ret === undefined) ret = null;
return ret;
};
} else {
getDomain = function() {
return null;
};
}
util.notEnumerableProp(Promise, "_getDomain", getDomain);
var UNDEFINED_BINDING = {};
var async = require("./async.js");
var errors = require("./errors.js");
var TypeError = Promise.TypeError = errors.TypeError;
Promise.RangeError = errors.RangeError;
Promise.CancellationError = errors.CancellationError;
Promise.TimeoutError = errors.TimeoutError;
Promise.OperationalError = errors.OperationalError;
Promise.RejectionError = errors.OperationalError;
Promise.AggregateError = errors.AggregateError;
var INTERNAL = function(){};
var APPLY = {};
var NEXT_FILTER = {e: null};
var tryConvertToPromise = require("./thenables.js")(Promise, INTERNAL);
var PromiseArray =
require("./promise_array.js")(Promise, INTERNAL,
tryConvertToPromise, apiRejection);
var CapturedTrace = require("./captured_trace.js")();
var isDebugging = require("./debuggability.js")(Promise, CapturedTrace);
/*jshint unused:false*/
var createContext =
require("./context.js")(Promise, CapturedTrace, isDebugging);
var CatchFilter = require("./catch_filter.js")(NEXT_FILTER);
var PromiseResolver = require("./promise_resolver.js");
var nodebackForPromise = PromiseResolver._nodebackForPromise;
var errorObj = util.errorObj;
var tryCatch = util.tryCatch;
function Promise(resolver) {
if (typeof resolver !== "function") {
throw new TypeError("the promise constructor requires a resolver function\u000a\u000a See http://goo.gl/EC22Yn\u000a");
}
if (this.constructor !== Promise) {
throw new TypeError("the promise constructor cannot be invoked directly\u000a\u000a See http://goo.gl/KsIlge\u000a");
}
this._bitField = 0;
this._fulfillmentHandler0 = undefined;
this._rejectionHandler0 = undefined;
this._progressHandler0 = undefined;
this._promise0 = undefined;
this._receiver0 = undefined;
this._settledValue = undefined;
if (resolver !== INTERNAL) this._resolveFromResolver(resolver);
}
Promise.prototype.toString = function () {
return "[object Promise]";
};
Promise.prototype.caught = Promise.prototype["catch"] = function (fn) {
var len = arguments.length;
if (len > 1) {
var catchInstances = new Array(len - 1),
j = 0, i;
for (i = 0; i < len - 1; ++i) {
var item = arguments[i];
if (typeof item === "function") {
catchInstances[j++] = item;
} else {
return Promise.reject(
new TypeError("Catch filter must inherit from Error or be a simple predicate function\u000a\u000a See http://goo.gl/o84o68\u000a"));
}
}
catchInstances.length = j;
fn = arguments[i];
var catchFilter = new CatchFilter(catchInstances, fn, this);
return this._then(undefined, catchFilter.doFilter, undefined,
catchFilter, undefined);
}
return this._then(undefined, fn, undefined, undefined, undefined);
};
Promise.prototype.reflect = function () {
return this._then(reflect, reflect, undefined, this, undefined);
};
Promise.prototype.then = function (didFulfill, didReject, didProgress) {
if (isDebugging() && arguments.length > 0 &&
typeof didFulfill !== "function" &&
typeof didReject !== "function") {
var msg = ".then() only accepts functions but was passed: " +
util.classString(didFulfill);
if (arguments.length > 1) {
msg += ", " + util.classString(didReject);
}
this._warn(msg);
}
return this._then(didFulfill, didReject, didProgress,
undefined, undefined);
};
Promise.prototype.done = function (didFulfill, didReject, didProgress) {
var promise = this._then(didFulfill, didReject, didProgress,
undefined, undefined);
promise._setIsFinal();
};
Promise.prototype.spread = function (didFulfill, didReject) {
return this.all()._then(didFulfill, didReject, undefined, APPLY, undefined);
};
Promise.prototype.isCancellable = function () {
return !this.isResolved() &&
this._cancellable();
};
Promise.prototype.toJSON = function () {
var ret = {
isFulfilled: false,
isRejected: false,
fulfillmentValue: undefined,
rejectionReason: undefined
};
if (this.isFulfilled()) {
ret.fulfillmentValue = this.value();
ret.isFulfilled = true;
} else if (this.isRejected()) {
ret.rejectionReason = this.reason();
ret.isRejected = true;
}
return ret;
};
Promise.prototype.all = function () {
return new PromiseArray(this).promise();
};
Promise.prototype.error = function (fn) {
return this.caught(util.originatesFromRejection, fn);
};
Promise.is = function (val) {
return val instanceof Promise;
};
Promise.fromNode = function(fn) {
var ret = new Promise(INTERNAL);
var result = tryCatch(fn)(nodebackForPromise(ret));
if (result === errorObj) {
ret._rejectCallback(result.e, true, true);
}
return ret;
};
Promise.all = function (promises) {
return new PromiseArray(promises).promise();
};
Promise.defer = Promise.pending = function () {
var promise = new Promise(INTERNAL);
return new PromiseResolver(promise);
};
Promise.cast = function (obj) {
var ret = tryConvertToPromise(obj);
if (!(ret instanceof Promise)) {
var val = ret;
ret = new Promise(INTERNAL);
ret._fulfillUnchecked(val);
}
return ret;
};
Promise.resolve = Promise.fulfilled = Promise.cast;
Promise.reject = Promise.rejected = function (reason) {
var ret = new Promise(INTERNAL);
ret._captureStackTrace();
ret._rejectCallback(reason, true);
return ret;
};
Promise.setScheduler = function(fn) {
if (typeof fn !== "function") throw new TypeError("fn must be a function\u000a\u000a See http://goo.gl/916lJJ\u000a");
var prev = async._schedule;
async._schedule = fn;
return prev;
};
Promise.prototype._then = function (
didFulfill,
didReject,
didProgress,
receiver,
internalData
) {
var haveInternalData = internalData !== undefined;
var ret = haveInternalData ? internalData : new Promise(INTERNAL);
if (!haveInternalData) {
ret._propagateFrom(this, 4 | 1);
ret._captureStackTrace();
}
var target = this._target();
if (target !== this) {
if (receiver === undefined) receiver = this._boundTo;
if (!haveInternalData) ret._setIsMigrated();
}
var callbackIndex = target._addCallbacks(didFulfill,
didReject,
didProgress,
ret,
receiver,
getDomain());
if (target._isResolved() && !target._isSettlePromisesQueued()) {
async.invoke(
target._settlePromiseAtPostResolution, target, callbackIndex);
}
return ret;
};
Promise.prototype._settlePromiseAtPostResolution = function (index) {
if (this._isRejectionUnhandled()) this._unsetRejectionIsUnhandled();
this._settlePromiseAt(index);
};
Promise.prototype._length = function () {
return this._bitField & 131071;
};
Promise.prototype._isFollowingOrFulfilledOrRejected = function () {
return (this._bitField & 939524096) > 0;
};
Promise.prototype._isFollowing = function () {
return (this._bitField & 536870912) === 536870912;
};
Promise.prototype._setLength = function (len) {
this._bitField = (this._bitField & -131072) |
(len & 131071);
};
Promise.prototype._setFulfilled = function () {
this._bitField = this._bitField | 268435456;
};
Promise.prototype._setRejected = function () {
this._bitField = this._bitField | 134217728;
};
Promise.prototype._setFollowing = function () {
this._bitField = this._bitField | 536870912;
};
Promise.prototype._setIsFinal = function () {
this._bitField = this._bitField | 33554432;
};
Promise.prototype._isFinal = function () {
return (this._bitField & 33554432) > 0;
};
Promise.prototype._cancellable = function () {
return (this._bitField & 67108864) > 0;
};
Promise.prototype._setCancellable = function () {
this._bitField = this._bitField | 67108864;
};
Promise.prototype._unsetCancellable = function () {
this._bitField = this._bitField & (~67108864);
};
Promise.prototype._setIsMigrated = function () {
this._bitField = this._bitField | 4194304;
};
Promise.prototype._unsetIsMigrated = function () {
this._bitField = this._bitField & (~4194304);
};
Promise.prototype._isMigrated = function () {
return (this._bitField & 4194304) > 0;
};
Promise.prototype._receiverAt = function (index) {
var ret = index === 0
? this._receiver0
: this[
index * 5 - 5 + 4];
if (ret === UNDEFINED_BINDING) {
return undefined;
} else if (ret === undefined && this._isBound()) {
return this._boundValue();
}
return ret;
};
Promise.prototype._promiseAt = function (index) {
return index === 0
? this._promise0
: this[index * 5 - 5 + 3];
};
Promise.prototype._fulfillmentHandlerAt = function (index) {
return index === 0
? this._fulfillmentHandler0
: this[index * 5 - 5 + 0];
};
Promise.prototype._rejectionHandlerAt = function (index) {
return index === 0
? this._rejectionHandler0
: this[index * 5 - 5 + 1];
};
Promise.prototype._boundValue = function() {
var ret = this._boundTo;
if (ret !== undefined) {
if (ret instanceof Promise) {
if (ret.isFulfilled()) {
return ret.value();
} else {
return undefined;
}
}
}
return ret;
};
Promise.prototype._migrateCallbacks = function (follower, index) {
var fulfill = follower._fulfillmentHandlerAt(index);
var reject = follower._rejectionHandlerAt(index);
var progress = follower._progressHandlerAt(index);
var promise = follower._promiseAt(index);
var receiver = follower._receiverAt(index);
if (promise instanceof Promise) promise._setIsMigrated();
if (receiver === undefined) receiver = UNDEFINED_BINDING;
this._addCallbacks(fulfill, reject, progress, promise, receiver, null);
};
Promise.prototype._addCallbacks = function (
fulfill,
reject,
progress,
promise,
receiver,
domain
) {
var index = this._length();
if (index >= 131071 - 5) {
index = 0;
this._setLength(0);
}
if (index === 0) {
this._promise0 = promise;
if (receiver !== undefined) this._receiver0 = receiver;
if (typeof fulfill === "function" && !this._isCarryingStackTrace()) {
this._fulfillmentHandler0 =
domain === null ? fulfill : domain.bind(fulfill);
}
if (typeof reject === "function") {
this._rejectionHandler0 =
domain === null ? reject : domain.bind(reject);
}
if (typeof progress === "function") {
this._progressHandler0 =
domain === null ? progress : domain.bind(progress);
}
} else {
var base = index * 5 - 5;
this[base + 3] = promise;
this[base + 4] = receiver;
if (typeof fulfill === "function") {
this[base + 0] =
domain === null ? fulfill : domain.bind(fulfill);
}
if (typeof reject === "function") {
this[base + 1] =
domain === null ? reject : domain.bind(reject);
}
if (typeof progress === "function") {
this[base + 2] =
domain === null ? progress : domain.bind(progress);
}
}
this._setLength(index + 1);
return index;
};
Promise.prototype._setProxyHandlers = function (receiver, promiseSlotValue) {
var index = this._length();
if (index >= 131071 - 5) {
index = 0;
this._setLength(0);
}
if (index === 0) {
this._promise0 = promiseSlotValue;
this._receiver0 = receiver;
} else {
var base = index * 5 - 5;
this[base + 3] = promiseSlotValue;
this[base + 4] = receiver;
}
this._setLength(index + 1);
};
Promise.prototype._proxyPromiseArray = function (promiseArray, index) {
this._setProxyHandlers(promiseArray, index);
};
Promise.prototype._resolveCallback = function(value, shouldBind) {
if (this._isFollowingOrFulfilledOrRejected()) return;
if (value === this)
return this._rejectCallback(makeSelfResolutionError(), false, true);
var maybePromise = tryConvertToPromise(value, this);
if (!(maybePromise instanceof Promise)) return this._fulfill(value);
var propagationFlags = 1 | (shouldBind ? 4 : 0);
this._propagateFrom(maybePromise, propagationFlags);
var promise = maybePromise._target();
if (promise._isPending()) {
var len = this._length();
for (var i = 0; i < len; ++i) {
promise._migrateCallbacks(this, i);
}
this._setFollowing();
this._setLength(0);
this._setFollowee(promise);
} else if (promise._isFulfilled()) {
this._fulfillUnchecked(promise._value());
} else {
this._rejectUnchecked(promise._reason(),
promise._getCarriedStackTrace());
}
};
Promise.prototype._rejectCallback =
function(reason, synchronous, shouldNotMarkOriginatingFromRejection) {
if (!shouldNotMarkOriginatingFromRejection) {
util.markAsOriginatingFromRejection(reason);
}
var trace = util.ensureErrorObject(reason);
var hasStack = trace === reason;
this._attachExtraTrace(trace, synchronous ? hasStack : false);
this._reject(reason, hasStack ? undefined : trace);
};
Promise.prototype._resolveFromResolver = function (resolver) {
var promise = this;
this._captureStackTrace();
this._pushContext();
var synchronous = true;
var r = tryCatch(resolver)(function(value) {
if (promise === null) return;
promise._resolveCallback(value);
promise = null;
}, function (reason) {
if (promise === null) return;
promise._rejectCallback(reason, synchronous);
promise = null;
});
synchronous = false;
this._popContext();
if (r !== undefined && r === errorObj && promise !== null) {
promise._rejectCallback(r.e, true, true);
promise = null;
}
};
Promise.prototype._settlePromiseFromHandler = function (
handler, receiver, value, promise
) {
if (promise._isRejected()) return;
promise._pushContext();
var x;
if (receiver === APPLY && !this._isRejected()) {
x = tryCatch(handler).apply(this._boundValue(), value);
} else {
x = tryCatch(handler).call(receiver, value);
}
promise._popContext();
if (x === errorObj || x === promise || x === NEXT_FILTER) {
var err = x === promise ? makeSelfResolutionError() : x.e;
promise._rejectCallback(err, false, true);
} else {
promise._resolveCallback(x);
}
};
Promise.prototype._target = function() {
var ret = this;
while (ret._isFollowing()) ret = ret._followee();
return ret;
};
Promise.prototype._followee = function() {
return this._rejectionHandler0;
};
Promise.prototype._setFollowee = function(promise) {
this._rejectionHandler0 = promise;
};
Promise.prototype._cleanValues = function () {
if (this._cancellable()) {
this._cancellationParent = undefined;
}
};
Promise.prototype._propagateFrom = function (parent, flags) {
if ((flags & 1) > 0 && parent._cancellable()) {
this._setCancellable();
this._cancellationParent = parent;
}
if ((flags & 4) > 0 && parent._isBound()) {
this._setBoundTo(parent._boundTo);
}
};
Promise.prototype._fulfill = function (value) {
if (this._isFollowingOrFulfilledOrRejected()) return;
this._fulfillUnchecked(value);
};
Promise.prototype._reject = function (reason, carriedStackTrace) {
if (this._isFollowingOrFulfilledOrRejected()) return;
this._rejectUnchecked(reason, carriedStackTrace);
};
Promise.prototype._settlePromiseAt = function (index) {
var promise = this._promiseAt(index);
var isPromise = promise instanceof Promise;
if (isPromise && promise._isMigrated()) {
promise._unsetIsMigrated();
return async.invoke(this._settlePromiseAt, this, index);
}
var handler = this._isFulfilled()
? this._fulfillmentHandlerAt(index)
: this._rejectionHandlerAt(index);
var carriedStackTrace =
this._isCarryingStackTrace() ? this._getCarriedStackTrace() : undefined;
var value = this._settledValue;
var receiver = this._receiverAt(index);
this._clearCallbackDataAtIndex(index);
if (typeof handler === "function") {
if (!isPromise) {
handler.call(receiver, value, promise);
} else {
this._settlePromiseFromHandler(handler, receiver, value, promise);
}
} else if (receiver instanceof PromiseArray) {
if (!receiver._isResolved()) {
if (this._isFulfilled()) {
receiver._promiseFulfilled(value, promise);
}
else {
receiver._promiseRejected(value, promise);
}
}
} else if (isPromise) {
if (this._isFulfilled()) {
promise._fulfill(value);
} else {
promise._reject(value, carriedStackTrace);
}
}
if (index >= 4 && (index & 31) === 4)
async.invokeLater(this._setLength, this, 0);
};
Promise.prototype._clearCallbackDataAtIndex = function(index) {
if (index === 0) {
if (!this._isCarryingStackTrace()) {
this._fulfillmentHandler0 = undefined;
}
this._rejectionHandler0 =
this._progressHandler0 =
this._receiver0 =
this._promise0 = undefined;
} else {
var base = index * 5 - 5;
this[base + 3] =
this[base + 4] =
this[base + 0] =
this[base + 1] =
this[base + 2] = undefined;
}
};
Promise.prototype._isSettlePromisesQueued = function () {
return (this._bitField &
-1073741824) === -1073741824;
};
Promise.prototype._setSettlePromisesQueued = function () {
this._bitField = this._bitField | -1073741824;
};
Promise.prototype._unsetSettlePromisesQueued = function () {
this._bitField = this._bitField & (~-1073741824);
};
Promise.prototype._queueSettlePromises = function() {
async.settlePromises(this);
this._setSettlePromisesQueued();
};
Promise.prototype._fulfillUnchecked = function (value) {
if (value === this) {
var err = makeSelfResolutionError();
this._attachExtraTrace(err);
return this._rejectUnchecked(err, undefined);
}
this._setFulfilled();
this._settledValue = value;
this._cleanValues();
if (this._length() > 0) {
this._queueSettlePromises();
}
};
Promise.prototype._rejectUncheckedCheckError = function (reason) {
var trace = util.ensureErrorObject(reason);
this._rejectUnchecked(reason, trace === reason ? undefined : trace);
};
Promise.prototype._rejectUnchecked = function (reason, trace) {
if (reason === this) {
var err = makeSelfResolutionError();
this._attachExtraTrace(err);
return this._rejectUnchecked(err);
}
this._setRejected();
this._settledValue = reason;
this._cleanValues();
if (this._isFinal()) {
async.throwLater(function(e) {
if ("stack" in e) {
async.invokeFirst(
CapturedTrace.unhandledRejection, undefined, e);
}
throw e;
}, trace === undefined ? reason : trace);
return;
}
if (trace !== undefined && trace !== reason) {
this._setCarriedStackTrace(trace);
}
if (this._length() > 0) {
this._queueSettlePromises();
} else {
this._ensurePossibleRejectionHandled();
}
};
Promise.prototype._settlePromises = function () {
this._unsetSettlePromisesQueued();
var len = this._length();
for (var i = 0; i < len; i++) {
this._settlePromiseAt(i);
}
};
util.notEnumerableProp(Promise,
"_makeSelfResolutionError",
makeSelfResolutionError);
require("./progress.js")(Promise, PromiseArray);
require("./method.js")(Promise, INTERNAL, tryConvertToPromise, apiRejection);
require("./bind.js")(Promise, INTERNAL, tryConvertToPromise);
require("./finally.js")(Promise, NEXT_FILTER, tryConvertToPromise);
require("./direct_resolve.js")(Promise);
require("./synchronous_inspection.js")(Promise);
require("./join.js")(Promise, PromiseArray, tryConvertToPromise, INTERNAL);
Promise.Promise = Promise;
require('./map.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL);
require('./cancel.js')(Promise);
require('./using.js')(Promise, apiRejection, tryConvertToPromise, createContext);
require('./generators.js')(Promise, apiRejection, INTERNAL, tryConvertToPromise);
require('./nodeify.js')(Promise);
require('./call_get.js')(Promise);
require('./props.js')(Promise, PromiseArray, tryConvertToPromise, apiRejection);
require('./race.js')(Promise, INTERNAL, tryConvertToPromise, apiRejection);
require('./reduce.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL);
require('./settle.js')(Promise, PromiseArray);
require('./some.js')(Promise, PromiseArray, apiRejection);
require('./promisify.js')(Promise, INTERNAL);
require('./any.js')(Promise);
require('./each.js')(Promise, INTERNAL);
require('./timers.js')(Promise, INTERNAL);
require('./filter.js')(Promise, INTERNAL);
util.toFastProperties(Promise);
util.toFastProperties(Promise.prototype);
function fillTypes(value) {
var p = new Promise(INTERNAL);
p._fulfillmentHandler0 = value;
p._rejectionHandler0 = value;
p._progressHandler0 = value;
p._promise0 = value;
p._receiver0 = value;
p._settledValue = value;
}
// Complete slack tracking, opt out of field-type tracking and
// stabilize map
fillTypes({a: 1});
fillTypes({b: 2});
fillTypes({c: 3});
fillTypes(1);
fillTypes(function(){});
fillTypes(undefined);
fillTypes(false);
fillTypes(new Promise(INTERNAL));
CapturedTrace.setBounds(async.firstLineError, util.lastLineError);
return Promise;
};