46 lines
2.1 KiB
JavaScript
46 lines
2.1 KiB
JavaScript
|
import { __read, __spreadArray } from "tslib";
|
||
|
|
import { Observable } from '../Observable';
|
||
|
|
import { innerFrom } from './innerFrom';
|
||
|
|
import { argsOrArgArray } from '../util/argsOrArgArray';
|
||
|
|
import { EMPTY } from './empty';
|
||
|
|
import { createOperatorSubscriber } from '../operators/OperatorSubscriber';
|
||
|
|
import { popResultSelector } from '../util/args';
|
||
|
|
export function zip() {
|
||
|
|
var args = [];
|
||
|
|
for (var _i = 0; _i < arguments.length; _i++) {
|
||
|
|
args[_i] = arguments[_i];
|
||
|
|
}
|
||
|
|
var resultSelector = popResultSelector(args);
|
||
|
|
var sources = argsOrArgArray(args);
|
||
|
|
return sources.length
|
||
|
|
? new Observable(function (subscriber) {
|
||
|
|
var buffers = sources.map(function () { return []; });
|
||
|
|
var completed = sources.map(function () { return false; });
|
||
|
|
subscriber.add(function () {
|
||
|
|
buffers = completed = null;
|
||
|
|
});
|
||
|
|
var _loop_1 = function (sourceIndex) {
|
||
|
|
innerFrom(sources[sourceIndex]).subscribe(createOperatorSubscriber(subscriber, function (value) {
|
||
|
|
buffers[sourceIndex].push(value);
|
||
|
|
if (buffers.every(function (buffer) { return buffer.length; })) {
|
||
|
|
var result = buffers.map(function (buffer) { return buffer.shift(); });
|
||
|
|
subscriber.next(resultSelector ? resultSelector.apply(void 0, __spreadArray([], __read(result))) : result);
|
||
|
|
if (buffers.some(function (buffer, i) { return !buffer.length && completed[i]; })) {
|
||
|
|
subscriber.complete();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}, function () {
|
||
|
|
completed[sourceIndex] = true;
|
||
|
|
!buffers[sourceIndex].length && subscriber.complete();
|
||
|
|
}));
|
||
|
|
};
|
||
|
|
for (var sourceIndex = 0; !subscriber.closed && sourceIndex < sources.length; sourceIndex++) {
|
||
|
|
_loop_1(sourceIndex);
|
||
|
|
}
|
||
|
|
return function () {
|
||
|
|
buffers = completed = null;
|
||
|
|
};
|
||
|
|
})
|
||
|
|
: EMPTY;
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=zip.js.map
|