@typed/effects/esm/fibers/join.js

Generator-powered Effect management

import { Disposable } from '@typed/disposable';
import { Either, Left, Right } from '@typed/either';
import { Resume } from '@typed/env';
import { Effect } from '../Effect';
import { orFail } from '../failures';
import { FiberFailure } from './Fiber';
export const Join = {
    join(fiber) {
        const { info } = fiber;
        if (info.state === 1 /* Returned */) {
            return Resume.of(Either.of(info.value));
        }
        if (info.state === 2 /* Error */) {
            return Resume.of(Left.of(info.error));
        }
        return Resume.create((cb) => {
            const disposable = Disposable.lazy();
            fiber.addDisposable(disposable);
            info.promise.then((value) => disposable.addDisposable(cb(Right.of(value))), (error) => disposable.addDisposable(cb(Left.of(error))));
            return disposable;
        });
    },
};
export function* join(f) {
    return yield* orFail(FiberFailure, Effect.fromEnv((c) => c.join(f)));
}
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