vue hello world项目
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

820 lines
26 KiB

3 years ago
"use strict";
module.exports = function() {
var makeSelfResolutionError = function () {
return new TypeError("circular promise resolution chain\u000a\u000a See http://goo.gl/MqrFmX\u000a");
};
var reflectHandler = function() {
return new Promise.PromiseInspection(this._target());
};
var apiRejection = function(msg) {
return Promise.reject(new TypeError(msg));
};
function Proxyable() {}
var UNDEFINED_BINDING = {};
var util = require("./util");
util.setReflectHandler(reflectHandler);
var getDomain = function() {
var domain = process.domain;
if (domain === undefined) {
return null;
}
return domain;
};
var getContextDefault = function() {
return null;
};
var getContextDomain = function() {
return {
domain: getDomain(),
async: null
};
};
var AsyncResource = util.isNode && util.nodeSupportsAsyncResource ?
require("async_hooks").AsyncResource : null;
var getContextAsyncHooks = function() {
return {
domain: getDomain(),
async: new AsyncResource("Bluebird::Promise")
};
};
var getContext = util.isNode ? getContextDomain : getContextDefault;
util.notEnumerableProp(Promise, "_getContext", getContext);
var enableAsyncHooks = function() {
getContext = getContextAsyncHooks;
util.notEnumerableProp(Promise, "_getContext", getContextAsyncHooks);
};
var disableAsyncHooks = function() {
getContext = getContextDomain;
util.notEnumerableProp(Promise, "_getContext", getContextDomain);
};
var es5 = require("./es5");
var Async = require("./async");
var async = new Async();
es5.defineProperty(Promise, "_async", {value: async});
var errors = require("./errors");
var TypeError = Promise.TypeError = errors.TypeError;
Promise.RangeError = errors.RangeError;
var CancellationError = 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 = {};
var tryConvertToPromise = require("./thenables")(Promise, INTERNAL);
var PromiseArray =
require("./promise_array")(Promise, INTERNAL,
tryConvertToPromise, apiRejection, Proxyable);
var Context = require("./context")(Promise);
/*jshint unused:false*/
var createContext = Context.create;
var debug = require("./debuggability")(Promise, Context,
enableAsyncHooks, disableAsyncHooks);
var CapturedTrace = debug.CapturedTrace;
var PassThroughHandlerContext =
require("./finally")(Promise, tryConvertToPromise, NEXT_FILTER);
var catchFilter = require("./catch_filter")(NEXT_FILTER);
var nodebackForPromise = require("./nodeback");
var errorObj = util.errorObj;
var tryCatch = util.tryCatch;
function check(self, executor) {
if (self == null || self.constructor !== Promise) {
throw new TypeError("the promise constructor cannot be invoked directly\u000a\u000a See http://goo.gl/MqrFmX\u000a");
}
if (typeof executor !== "function") {
throw new TypeError("expecting a function but got " + util.classString(executor));
}
}
function Promise(executor) {
if (executor !== INTERNAL) {
check(this, executor);
}
this._bitField = 0;
this._fulfillmentHandler0 = undefined;
this._rejectionHandler0 = undefined;
this._promise0 = undefined;
this._receiver0 = undefined;
this._resolveFromExecutor(executor);
this._promiseCreated();
this._fireEvent("promiseCreated", this);
}
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 (util.isObject(item)) {
catchInstances[j++] = item;
} else {
return apiRejection("Catch statement predicate: " +
"expecting an object but got " + util.classString(item));
}
}
catchInstances.length = j;
fn = arguments[i];
if (typeof fn !== "function") {
throw new TypeError("The last argument to .catch() " +
"must be a function, got " + util.toString(fn));
}
return this.then(undefined, catchFilter(catchInstances, fn, this));
}
return this.then(undefined, fn);
};
Promise.prototype.reflect = function () {
return this._then(reflectHandler,
reflectHandler, undefined, this, undefined);
};
Promise.prototype.then = function (didFulfill, didReject) {
if (debug.warnings() && 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, undefined, undefined, undefined);
};
Promise.prototype.done = function (didFulfill, didReject) {
var promise =
this._then(didFulfill, didReject, undefined, undefined, undefined);
promise._setIsFinal();
};
Promise.prototype.spread = function (fn) {
if (typeof fn !== "function") {
return apiRejection("expecting a function but got " + util.classString(fn));
}
return this.all()._then(fn, undefined, undefined, APPLY, undefined);
};
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 () {
if (arguments.length > 0) {
this._warn(".all() was passed arguments but it does not take any");
}
return new PromiseArray(this).promise();
};
Promise.prototype.error = function (fn) {
return this.caught(util.originatesFromRejection, fn);
};
Promise.getNewLibraryCopy = module.exports;
Promise.is = function (val) {
return val instanceof Promise;
};
Promise.fromNode = Promise.fromCallback = function(fn) {
var ret = new Promise(INTERNAL);
ret._captureStackTrace();
var multiArgs = arguments.length > 1 ? !!Object(arguments[1]).multiArgs
: false;
var result = tryCatch(fn)(nodebackForPromise(ret, multiArgs));
if (result === errorObj) {
ret._rejectCallback(result.e, true);
}
if (!ret._isFateSealed()) ret._setAsyncGuaranteed();
return ret;
};
Promise.all = function (promises) {
return new PromiseArray(promises).promise();
};
Promise.cast = function (obj) {
var ret = tryConvertToPromise(obj);
if (!(ret instanceof Promise)) {
ret = new Promise(INTERNAL);
ret._captureStackTrace();
ret._setFulfilled();
ret._rejectionHandler0 = obj;
}
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("expecting a function but got " + util.classString(fn));
}
return async.setScheduler(fn);
};
Promise.prototype._then = function (
didFulfill,
didReject,
_, receiver,
internalData
) {
var haveInternalData = internalData !== undefined;
var promise = haveInternalData ? internalData : new Promise(INTERNAL);
var target = this._target();
var bitField = target._bitField;
if (!haveInternalData) {
promise._propagateFrom(this, 3);
promise._captureStackTrace();
if (receiver === undefined &&
((this._bitField & 2097152) !== 0)) {
if (!((bitField & 50397184) === 0)) {
receiver = this._boundValue();
} else {
receiver = target === this ? undefined : this._boundTo;
}
}
this._fireEvent("promiseChained", this, promise);
}
var context = getContext();
if (!((bitField & 50397184) === 0)) {
var handler, value, settler = target._settlePromiseCtx;
if (((bitField & 33554432) !== 0)) {
value = target._rejectionHandler0;
handler = didFulfill;
} else if (((bitField & 16777216) !== 0)) {
value = target._fulfillmentHandler0;
handler = didReject;
target._unsetRejectionIsUnhandled();
} else {
settler = target._settlePromiseLateCancellationObserver;
value = new CancellationError("late cancellation observer");
target._attachExtraTrace(value);
handler = didReject;
}
async.invoke(settler, target, {
handler: util.contextBind(context, handler),
promise: promise,
receiver: receiver,
value: value
});
} else {
target._addCallbacks(didFulfill, didReject, promise,
receiver, context);
}
return promise;
};
Promise.prototype._length = function () {
return this._bitField & 65535;
};
Promise.prototype._isFateSealed = function () {
return (this._bitField & 117506048) !== 0;
};
Promise.prototype._isFollowing = function () {
return (this._bitField & 67108864) === 67108864;
};
Promise.prototype._setLength = function (len) {
this._bitField = (this._bitField & -65536) |
(len & 65535);
};
Promise.prototype._setFulfilled = function () {
this._bitField = this._bitField | 33554432;
this._fireEvent("promiseFulfilled", this);
};
Promise.prototype._setRejected = function () {
this._bitField = this._bitField | 16777216;
this._fireEvent("promiseRejected", this);
};
Promise.prototype._setFollowing = function () {
this._bitField = this._bitField | 67108864;
this._fireEvent("promiseResolved", this);
};
Promise.prototype._setIsFinal = function () {
this._bitField = this._bitField | 4194304;
};
Promise.prototype._isFinal = function () {
return (this._bitField & 4194304) > 0;
};
Promise.prototype._unsetCancelled = function() {
this._bitField = this._bitField & (~65536);
};
Promise.prototype._setCancelled = function() {
this._bitField = this._bitField | 65536;
this._fireEvent("promiseCancelled", this);
};
Promise.prototype._setWillBeCancelled = function() {
this._bitField = this._bitField | 8388608;
};
Promise.prototype._setAsyncGuaranteed = function() {
if (async.hasCustomScheduler()) return;
var bitField = this._bitField;
this._bitField = bitField |
(((bitField & 536870912) >> 2) ^
134217728);
};
Promise.prototype._setNoAsyncGuarantee = function() {
this._bitField = (this._bitField | 536870912) &
(~134217728);
};
Promise.prototype._receiverAt = function (index) {
var ret = index === 0 ? this._receiver0 : this[
index * 4 - 4 + 3];
if (ret === UNDEFINED_BINDING) {
return undefined;
} else if (ret === undefined && this._isBound()) {
return this._boundValue();
}
return ret;
};
Promise.prototype._promiseAt = function (index) {
return this[
index * 4 - 4 + 2];
};
Promise.prototype._fulfillmentHandlerAt = function (index) {
return this[
index * 4 - 4 + 0];
};
Promise.prototype._rejectionHandlerAt = function (index) {
return this[
index * 4 - 4 + 1];
};
Promise.prototype._boundValue = function() {};
Promise.prototype._migrateCallback0 = function (follower) {
var bitField = follower._bitField;
var fulfill = follower._fulfillmentHandler0;
var reject = follower._rejectionHandler0;
var promise = follower._promise0;
var receiver = follower._receiverAt(0);
if (receiver === undefined) receiver = UNDEFINED_BINDING;
this._addCallbacks(fulfill, reject, promise, receiver, null);
};
Promise.prototype._migrateCallbackAt = function (follower, index) {
var fulfill = follower._fulfillmentHandlerAt(index);
var reject = follower._rejectionHandlerAt(index);
var promise = follower._promiseAt(index);
var receiver = follower._receiverAt(index);
if (receiver === undefined) receiver = UNDEFINED_BINDING;
this._addCallbacks(fulfill, reject, promise, receiver, null);
};
Promise.prototype._addCallbacks = function (
fulfill,
reject,
promise,
receiver,
context
) {
var index = this._length();
if (index >= 65535 - 4) {
index = 0;
this._setLength(0);
}
if (index === 0) {
this._promise0 = promise;
this._receiver0 = receiver;
if (typeof fulfill === "function") {
this._fulfillmentHandler0 = util.contextBind(context, fulfill);
}
if (typeof reject === "function") {
this._rejectionHandler0 = util.contextBind(context, reject);
}
} else {
var base = index * 4 - 4;
this[base + 2] = promise;
this[base + 3] = receiver;
if (typeof fulfill === "function") {
this[base + 0] =
util.contextBind(context, fulfill);
}
if (typeof reject === "function") {
this[base + 1] =
util.contextBind(context, reject);
}
}
this._setLength(index + 1);
return index;
};
Promise.prototype._proxy = function (proxyable, arg) {
this._addCallbacks(undefined, undefined, arg, proxyable, null);
};
Promise.prototype._resolveCallback = function(value, shouldBind) {
if (((this._bitField & 117506048) !== 0)) return;
if (value === this)
return this._rejectCallback(makeSelfResolutionError(), false);
var maybePromise = tryConvertToPromise(value, this);
if (!(maybePromise instanceof Promise)) return this._fulfill(value);
if (shouldBind) this._propagateFrom(maybePromise, 2);
var promise = maybePromise._target();
if (promise === this) {
this._reject(makeSelfResolutionError());
return;
}
var bitField = promise._bitField;
if (((bitField & 50397184) === 0)) {
var len = this._length();
if (len > 0) promise._migrateCallback0(this);
for (var i = 1; i < len; ++i) {
promise._migrateCallbackAt(this, i);
}
this._setFollowing();
this._setLength(0);
this._setFollowee(maybePromise);
} else if (((bitField & 33554432) !== 0)) {
this._fulfill(promise._value());
} else if (((bitField & 16777216) !== 0)) {
this._reject(promise._reason());
} else {
var reason = new CancellationError("late cancellation observer");
promise._attachExtraTrace(reason);
this._reject(reason);
}
};
Promise.prototype._rejectCallback =
function(reason, synchronous, ignoreNonErrorWarnings) {
var trace = util.ensureErrorObject(reason);
var hasStack = trace === reason;
if (!hasStack && !ignoreNonErrorWarnings && debug.warnings()) {
var message = "a promise was rejected with a non-error: " +
util.classString(reason);
this._warn(message, true);
}
this._attachExtraTrace(trace, synchronous ? hasStack : false);
this._reject(reason);
};
Promise.prototype._resolveFromExecutor = function (executor) {
if (executor === INTERNAL) return;
var promise = this;
this._captureStackTrace();
this._pushContext();
var synchronous = true;
var r = this._execute(executor, function(value) {
promise._resolveCallback(value);
}, function (reason) {
promise._rejectCallback(reason, synchronous);
});
synchronous = false;
this._popContext();
if (r !== undefined) {
promise._rejectCallback(r, true);
}
};
Promise.prototype._settlePromiseFromHandler = function (
handler, receiver, value, promise
) {
var bitField = promise._bitField;
if (((bitField & 65536) !== 0)) return;
promise._pushContext();
var x;
if (receiver === APPLY) {
if (!value || typeof value.length !== "number") {
x = errorObj;
x.e = new TypeError("cannot .spread() a non-array: " +
util.classString(value));
} else {
x = tryCatch(handler).apply(this._boundValue(), value);
}
} else {
x = tryCatch(handler).call(receiver, value);
}
var promiseCreated = promise._popContext();
bitField = promise._bitField;
if (((bitField & 65536) !== 0)) return;
if (x === NEXT_FILTER) {
promise._reject(value);
} else if (x === errorObj) {
promise._rejectCallback(x.e, false);
} else {
debug.checkForgottenReturns(x, promiseCreated, "", promise, this);
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._settlePromise = function(promise, handler, receiver, value) {
var isPromise = promise instanceof Promise;
var bitField = this._bitField;
var asyncGuaranteed = ((bitField & 134217728) !== 0);
if (((bitField & 65536) !== 0)) {
if (isPromise) promise._invokeInternalOnCancel();
if (receiver instanceof PassThroughHandlerContext &&
receiver.isFinallyHandler()) {
receiver.cancelPromise = promise;
if (tryCatch(handler).call(receiver, value) === errorObj) {
promise._reject(errorObj.e);
}
} else if (handler === reflectHandler) {
promise._fulfill(reflectHandler.call(receiver));
} else if (receiver instanceof Proxyable) {
receiver._promiseCancelled(promise);
} else if (isPromise || promise instanceof PromiseArray) {
promise._cancel();
} else {
receiver.cancel();
}
} else if (typeof handler === "function") {
if (!isPromise) {
handler.call(receiver, value, promise);
} else {
if (asyncGuaranteed) promise._setAsyncGuaranteed();
this._settlePromiseFromHandler(handler, receiver, value, promise);
}
} else if (receiver instanceof Proxyable) {
if (!receiver._isResolved()) {
if (((bitField & 33554432) !== 0)) {
receiver._promiseFulfilled(value, promise);
} else {
receiver._promiseRejected(value, promise);
}
}
} else if (isPromise) {
if (asyncGuaranteed) promise._setAsyncGuaranteed();
if (((bitField & 33554432) !== 0)) {
promise._fulfill(value);
} else {
promise._reject(value);
}
}
};
Promise.prototype._settlePromiseLateCancellationObserver = function(ctx) {
var handler = ctx.handler;
var promise = ctx.promise;
var receiver = ctx.receiver;
var value = ctx.value;
if (typeof handler === "function") {
if (!(promise instanceof Promise)) {
handler.call(receiver, value, promise);
} else {
this._settlePromiseFromHandler(handler, receiver, value, promise);
}
} else if (promise instanceof Promise) {
promise._reject(value);
}
};
Promise.prototype._settlePromiseCtx = function(ctx) {
this._settlePromise(ctx.promise, ctx.handler, ctx.receiver, ctx.value);
};
Promise.prototype._settlePromise0 = function(handler, value, bitField) {
var promise = this._promise0;
var receiver = this._receiverAt(0);
this._promise0 = undefined;
this._receiver0 = undefined;
this._settlePromise(promise, handler, receiver, value);
};
Promise.prototype._clearCallbackDataAtIndex = function(index) {
var base = index * 4 - 4;
this[base + 2] =
this[base + 3] =
this[base + 0] =
this[base + 1] = undefined;
};
Promise.prototype._fulfill = function (value) {
var bitField = this._bitField;
if (((bitField & 117506048) >>> 16)) return;
if (value === this) {
var err = makeSelfResolutionError();
this._attachExtraTrace(err);
return this._reject(err);
}
this._setFulfilled();
this._rejectionHandler0 = value;
if ((bitField & 65535) > 0) {
if (((bitField & 134217728) !== 0)) {
this._settlePromises();
} else {
async.settlePromises(this);
}
this._dereferenceTrace();
}
};
Promise.prototype._reject = function (reason) {
var bitField = this._bitField;
if (((bitField & 117506048) >>> 16)) return;
this._setRejected();
this._fulfillmentHandler0 = reason;
if (this._isFinal()) {
return async.fatalError(reason, util.isNode);
}
if ((bitField & 65535) > 0) {
async.settlePromises(this);
} else {
this._ensurePossibleRejectionHandled();
}
};
Promise.prototype._fulfillPromises = function (len, value) {
for (var i = 1; i < len; i++) {
var handler = this._fulfillmentHandlerAt(i);
var promise = this._promiseAt(i);
var receiver = this._receiverAt(i);
this._clearCallbackDataAtIndex(i);
this._settlePromise(promise, handler, receiver, value);
}
};
Promise.prototype._rejectPromises = function (len, reason) {
for (var i = 1; i < len; i++) {
var handler = this._rejectionHandlerAt(i);
var promise = this._promiseAt(i);
var receiver = this._receiverAt(i);
this._clearCallbackDataAtIndex(i);
this._settlePromise(promise, handler, receiver, reason);
}
};
Promise.prototype._settlePromises = function () {
var bitField = this._bitField;
var len = (bitField & 65535);
if (len > 0) {
if (((bitField & 16842752) !== 0)) {
var reason = this._fulfillmentHandler0;
this._settlePromise0(this._rejectionHandler0, reason, bitField);
this._rejectPromises(len, reason);
} else {
var value = this._rejectionHandler0;
this._settlePromise0(this._fulfillmentHandler0, value, bitField);
this._fulfillPromises(len, value);
}
this._setLength(0);
}
this._clearCancellationData();
};
Promise.prototype._settledValue = function() {
var bitField = this._bitField;
if (((bitField & 33554432) !== 0)) {
return this._rejectionHandler0;
} else if (((bitField & 16777216) !== 0)) {
return this._fulfillmentHandler0;
}
};
if (typeof Symbol !== "undefined" && Symbol.toStringTag) {
es5.defineProperty(Promise.prototype, Symbol.toStringTag, {
get: function () {
return "Object";
}
});
}
function deferResolve(v) {this.promise._resolveCallback(v);}
function deferReject(v) {this.promise._rejectCallback(v, false);}
Promise.defer = Promise.pending = function() {
debug.deprecated("Promise.defer", "new Promise");
var promise = new Promise(INTERNAL);
return {
promise: promise,
resolve: deferResolve,
reject: deferReject
};
};
util.notEnumerableProp(Promise,
"_makeSelfResolutionError",
makeSelfResolutionError);
require("./method")(Promise, INTERNAL, tryConvertToPromise, apiRejection,
debug);
require("./bind")(Promise, INTERNAL, tryConvertToPromise, debug);
require("./cancel")(Promise, PromiseArray, apiRejection, debug);
require("./direct_resolve")(Promise);
require("./synchronous_inspection")(Promise);
require("./join")(
Promise, PromiseArray, tryConvertToPromise, INTERNAL, async);
Promise.Promise = Promise;
Promise.version = "3.7.2";
require('./call_get.js')(Promise);
require('./generators.js')(Promise, apiRejection, INTERNAL, tryConvertToPromise, Proxyable, debug);
require('./map.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL, debug);
require('./nodeify.js')(Promise);
require('./promisify.js')(Promise, INTERNAL);
require('./props.js')(Promise, PromiseArray, tryConvertToPromise, apiRejection);
require('./race.js')(Promise, INTERNAL, tryConvertToPromise, apiRejection);
require('./reduce.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL, debug);
require('./settle.js')(Promise, PromiseArray, debug);
require('./some.js')(Promise, PromiseArray, apiRejection);
require('./timers.js')(Promise, INTERNAL, debug);
require('./using.js')(Promise, apiRejection, tryConvertToPromise, createContext, INTERNAL, debug);
require('./any.js')(Promise);
require('./each.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._promise0 = value;
p._receiver0 = 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));
debug.setBounds(Async.firstLineError, util.lastLineError);
return Promise;
};