diff options
Diffstat (limited to 'node_modules/bluebird/js/release/promise_array.js')
-rw-r--r-- | node_modules/bluebird/js/release/promise_array.js | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/release/promise_array.js b/node_modules/bluebird/js/release/promise_array.js new file mode 100644 index 000000000..f874df3f3 --- /dev/null +++ b/node_modules/bluebird/js/release/promise_array.js @@ -0,0 +1,184 @@ +"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 {}; + } +} + +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; +}; |