diff options
Diffstat (limited to 'node_modules/bluebird/js/main/promise.js')
| -rw-r--r-- | node_modules/bluebird/js/main/promise.js | 700 |
1 files changed, 700 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/main/promise.js b/node_modules/bluebird/js/main/promise.js new file mode 100644 index 000000000..f80d247b1 --- /dev/null +++ b/node_modules/bluebird/js/main/promise.js @@ -0,0 +1,700 @@ +"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 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); + + 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 && this._isBound()) { + return this._boundTo; + } + 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._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(); + this._addCallbacks(fulfill, reject, progress, promise, receiver); +}; + +Promise.prototype._addCallbacks = function ( + fulfill, + reject, + progress, + promise, + receiver +) { + 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 = fulfill; + if (typeof reject === "function") this._rejectionHandler0 = reject; + if (typeof progress === "function") this._progressHandler0 = progress; + } else { + var base = index * 5 - 5; + this[base + 3] = promise; + this[base + 4] = receiver; + if (typeof fulfill === "function") + this[base + 0] = fulfill; + if (typeof reject === "function") + this[base + 1] = reject; + if (typeof progress === "function") + this[base + 2] = 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._boundTo, 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); + } +}; + +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; + +}; |