@effect-ts/system/_src/Experimental/Stream/Channel/api/mapEffect.ts

Effect-TS is a zero dependency set of libraries to write highly productive, purely functional TypeScript at scale.

// ets_tracing: off

import type * as T from "../../../../Effect/index.js"
import * as C from "../core.js"

/**
 * Returns a new channel, which is the same as this one, except the terminal value of the
 * returned channel is created by applying the specified effectful function to the terminal value
 * of this channel.
 */
export function mapEffect_<
  Env,
  Env1,
  InErr,
  InElem,
  InDone,
  OutErr,
  OutErr1,
  OutElem,
  OutDone,
  OutDone1
>(
  self: C.Channel<Env, InErr, InElem, InDone, OutErr, OutElem, OutDone>,
  f: (o: OutDone) => T.Effect<Env1, OutErr1, OutDone1>
): C.Channel<Env & Env1, InErr, InElem, InDone, OutErr | OutErr1, OutElem, OutDone1> {
  return C.chain_(self, (z) => C.fromEffect(f(z)))
}

/**
 * Returns a new channel, which is the same as this one, except the terminal value of the
 * returned channel is created by applying the specified effectful function to the terminal value
 * of this channel.
 *
 * @ets_data_first mapEffect_
 */
export function mapEffect<Env1, OutErr1, OutDone, OutDone1>(
  f: (o: OutDone) => T.Effect<Env1, OutErr1, OutDone1>
) {
  return <Env, InErr, InElem, InDone, OutErr, OutElem>(
    self: C.Channel<Env, InErr, InElem, InDone, OutErr, OutElem, OutDone>
  ) => mapEffect_(self, f)
}