_iterator: function _iterator(err, res) {
if (this._interrupt) {
return this;
}
if (!this._alive) {
throw new Error('this bucks object already destroyed.');
}
//taskから渡ってきたresを配列に保持して最後に返す
res ? this._results.push(res) : this._results.push(null);
var task = this._tasks.shift();
if (!task) { // end of task
return this.destroy(err);
}
try {
var self = this;
// handle task
task(err, res, function (err, res) {
self._iterator(err, res);
return this;
}, this._taskcount++);
} catch (exception) {
if (!this._results) {
// this instance already destroyed.
// this exception is uncaught exception.
if (Bucks.DEBUG) {
// if DEBUG, logging
logError(exception);
}
if (Bucks._isOnError) {
Bucks._onError(exception, this);
} else {
throw exception;
}
}
// handle error
this._iterator(exception, null);
}
return this;
},
destroy: function destroy(err) {
if (!this._alive) {
return this;
}
var ress = this._results;
var callback = this.callback;
var failure = this.failure;
var dispose = this.dispose;
this._tasks = null;
this._taskcount = 0;
this._results = null;
this.callback = none;
this.failure = none;
this.dispose = none;
// @TODO: Change where to run to finally.
//dispose.call(this); // run the "dispose()"
ress.shift(); // remove null-result created on first iterate
try {
if (callback) {
callback(err, ress);
} else if (err) {
// if err and no callback,
// throw to exec failure callback
throw err;
}
} catch (ex) {
if (failure) {
try {
failure(ex);
} catch (ex1) {
if (Bucks._isOnError) {
Bucks._onError(ex1, this);
} else {
throw ex1;
}
}
} else {
// if err and no failure callback
// throw it
if (Bucks.DEBUG) {
// if DEBUG, logging
logError(ex);
}
if (Bucks._isOnError) {
Bucks._onError(ex, this);
} else {
throw ex;
}
}
} finally {
try {
dispose.call(this); // run the "dispose()"
} catch (ex1) {
if (Bucks._isOnError) {
Bucks._onError(ex1, this);
} else {
throw ex1;
}
}
// @TODO: excluded from the deleted
// delete this._interrupt;
delete this._alive;
delete Bucks.running[this.__id];
delete Bucks.living[this.__id];
delete this.__id;
}
return this;
},