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.
		
		
		
		
		
			
		
			
				
					187 lines
				
				5.1 KiB
			
		
		
			
		
	
	
					187 lines
				
				5.1 KiB
			| 
											3 years ago
										 | "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); | ||
|  |         values.suppressUnhandledRejections(); | ||
|  |     } | ||
|  |     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; | ||
|  | }; |