hugoWebsite/node_modules/rxjs/dist/esm5/internal/observable/innerFrom.js

143 lines
5.3 KiB
JavaScript
Raw Normal View History

2022-10-29 00:20:35 +02:00
import { __asyncValues, __awaiter, __generator, __values } from "tslib";
import { isArrayLike } from '../util/isArrayLike';
import { isPromise } from '../util/isPromise';
import { Observable } from '../Observable';
import { isInteropObservable } from '../util/isInteropObservable';
import { isAsyncIterable } from '../util/isAsyncIterable';
import { createInvalidObservableTypeError } from '../util/throwUnobservableError';
import { isIterable } from '../util/isIterable';
import { isReadableStreamLike, readableStreamLikeToAsyncGenerator } from '../util/isReadableStreamLike';
import { isFunction } from '../util/isFunction';
import { reportUnhandledError } from '../util/reportUnhandledError';
import { observable as Symbol_observable } from '../symbol/observable';
export function innerFrom(input) {
if (input instanceof Observable) {
return input;
}
if (input != null) {
if (isInteropObservable(input)) {
return fromInteropObservable(input);
}
if (isArrayLike(input)) {
return fromArrayLike(input);
}
if (isPromise(input)) {
return fromPromise(input);
}
if (isAsyncIterable(input)) {
return fromAsyncIterable(input);
}
if (isIterable(input)) {
return fromIterable(input);
}
if (isReadableStreamLike(input)) {
return fromReadableStreamLike(input);
}
}
throw createInvalidObservableTypeError(input);
}
export function fromInteropObservable(obj) {
return new Observable(function (subscriber) {
var obs = obj[Symbol_observable]();
if (isFunction(obs.subscribe)) {
return obs.subscribe(subscriber);
}
throw new TypeError('Provided object does not correctly implement Symbol.observable');
});
}
export function fromArrayLike(array) {
return new Observable(function (subscriber) {
for (var i = 0; i < array.length && !subscriber.closed; i++) {
subscriber.next(array[i]);
}
subscriber.complete();
});
}
export function fromPromise(promise) {
return new Observable(function (subscriber) {
promise
.then(function (value) {
if (!subscriber.closed) {
subscriber.next(value);
subscriber.complete();
}
}, function (err) { return subscriber.error(err); })
.then(null, reportUnhandledError);
});
}
export function fromIterable(iterable) {
return new Observable(function (subscriber) {
var e_1, _a;
try {
for (var iterable_1 = __values(iterable), iterable_1_1 = iterable_1.next(); !iterable_1_1.done; iterable_1_1 = iterable_1.next()) {
var value = iterable_1_1.value;
subscriber.next(value);
if (subscriber.closed) {
return;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (iterable_1_1 && !iterable_1_1.done && (_a = iterable_1.return)) _a.call(iterable_1);
}
finally { if (e_1) throw e_1.error; }
}
subscriber.complete();
});
}
export function fromAsyncIterable(asyncIterable) {
return new Observable(function (subscriber) {
process(asyncIterable, subscriber).catch(function (err) { return subscriber.error(err); });
});
}
export function fromReadableStreamLike(readableStream) {
return fromAsyncIterable(readableStreamLikeToAsyncGenerator(readableStream));
}
function process(asyncIterable, subscriber) {
var asyncIterable_1, asyncIterable_1_1;
var e_2, _a;
return __awaiter(this, void 0, void 0, function () {
var value, e_2_1;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_b.trys.push([0, 5, 6, 11]);
asyncIterable_1 = __asyncValues(asyncIterable);
_b.label = 1;
case 1: return [4, asyncIterable_1.next()];
case 2:
if (!(asyncIterable_1_1 = _b.sent(), !asyncIterable_1_1.done)) return [3, 4];
value = asyncIterable_1_1.value;
subscriber.next(value);
if (subscriber.closed) {
return [2];
}
_b.label = 3;
case 3: return [3, 1];
case 4: return [3, 11];
case 5:
e_2_1 = _b.sent();
e_2 = { error: e_2_1 };
return [3, 11];
case 6:
_b.trys.push([6, , 9, 10]);
if (!(asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return))) return [3, 8];
return [4, _a.call(asyncIterable_1)];
case 7:
_b.sent();
_b.label = 8;
case 8: return [3, 10];
case 9:
if (e_2) throw e_2.error;
return [7];
case 10: return [7];
case 11:
subscriber.complete();
return [2];
}
});
});
}
//# sourceMappingURL=innerFrom.js.map