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Direktori : /usr/lib/node_modules/npm/node_modules/bluebird/js/release/ |
Current File : //usr/lib/node_modules/npm/node_modules/bluebird/js/release/promise_array.js |
"use strict"; module.exports = function(Promise, INTERNAL, tryConvertToPromise, apiRejection, Proxyable) { var util = require("./util"); var isArray = util.isArray; function toResolutionValue(val) { switch(val) { case -2: return []; case -3: return {}; case -6: return new Map(); } } function PromiseArray(values) { var promise = this._promise = new Promise(INTERNAL); if (values instanceof Promise) { promise._propagateFrom(values, 3); } promise._setOnCancel(this); this._values = values; this._length = 0; this._totalResolved = 0; this._init(undefined, -2); } util.inherits(PromiseArray, Proxyable); PromiseArray.prototype.length = function () { return this._length; }; PromiseArray.prototype.promise = function () { return this._promise; }; PromiseArray.prototype._init = function init(_, resolveValueIfEmpty) { var values = tryConvertToPromise(this._values, this._promise); if (values instanceof Promise) { values = values._target(); var bitField = values._bitField; ; this._values = values; if (((bitField & 50397184) === 0)) { this._promise._setAsyncGuaranteed(); return values._then( init, this._reject, undefined, this, resolveValueIfEmpty ); } else if (((bitField & 33554432) !== 0)) { values = values._value(); } else if (((bitField & 16777216) !== 0)) { return this._reject(values._reason()); } else { return this._cancel(); } } values = util.asArray(values); if (values === null) { var err = apiRejection( "expecting an array or an iterable object but got " + util.classString(values)).reason(); this._promise._rejectCallback(err, false); return; } if (values.length === 0) { if (resolveValueIfEmpty === -5) { this._resolveEmptyArray(); } else { this._resolve(toResolutionValue(resolveValueIfEmpty)); } return; } this._iterate(values); }; PromiseArray.prototype._iterate = function(values) { var len = this.getActualLength(values.length); this._length = len; this._values = this.shouldCopyValues() ? new Array(len) : this._values; var result = this._promise; var isResolved = false; var bitField = null; for (var i = 0; i < len; ++i) { var maybePromise = tryConvertToPromise(values[i], result); if (maybePromise instanceof Promise) { maybePromise = maybePromise._target(); bitField = maybePromise._bitField; } else { bitField = null; } if (isResolved) { if (bitField !== null) { maybePromise.suppressUnhandledRejections(); } } else if (bitField !== null) { if (((bitField & 50397184) === 0)) { maybePromise._proxy(this, i); this._values[i] = maybePromise; } else if (((bitField & 33554432) !== 0)) { isResolved = this._promiseFulfilled(maybePromise._value(), i); } else if (((bitField & 16777216) !== 0)) { isResolved = this._promiseRejected(maybePromise._reason(), i); } else { isResolved = this._promiseCancelled(i); } } else { isResolved = this._promiseFulfilled(maybePromise, i); } } if (!isResolved) result._setAsyncGuaranteed(); }; PromiseArray.prototype._isResolved = function () { return this._values === null; }; PromiseArray.prototype._resolve = function (value) { this._values = null; this._promise._fulfill(value); }; PromiseArray.prototype._cancel = function() { if (this._isResolved() || !this._promise._isCancellable()) return; this._values = null; this._promise._cancel(); }; PromiseArray.prototype._reject = function (reason) { this._values = null; this._promise._rejectCallback(reason, false); }; PromiseArray.prototype._promiseFulfilled = function (value, index) { this._values[index] = value; var totalResolved = ++this._totalResolved; if (totalResolved >= this._length) { this._resolve(this._values); return true; } return false; }; PromiseArray.prototype._promiseCancelled = function() { this._cancel(); return true; }; PromiseArray.prototype._promiseRejected = function (reason) { this._totalResolved++; this._reject(reason); return true; }; PromiseArray.prototype._resultCancelled = function() { if (this._isResolved()) return; var values = this._values; this._cancel(); if (values instanceof Promise) { values.cancel(); } else { for (var i = 0; i < values.length; ++i) { if (values[i] instanceof Promise) { values[i].cancel(); } } } }; PromiseArray.prototype.shouldCopyValues = function () { return true; }; PromiseArray.prototype.getActualLength = function (len) { return len; }; return PromiseArray; };