@effect-ts/system/Experimental/Stream/_internal/api/scanReduceEffect.js

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

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.scanReduceEffect = scanReduceEffect;
exports.scanReduceEffect_ = scanReduceEffect_;

var Tp = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../../../../Collections/Immutable/Tuple/index.js"));

var T = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../../../../Effect/index.js"));

var O = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../../../../Option/index.js"));

var MapAccumEffect = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("./mapAccumEffect.js"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

// ets_tracing: off

/**
 * Statefully and effectfully maps over the elements of this stream to produce all
 * intermediate results.
 *
 * See also `Stream#scanEffect`.
 */
function scanReduceEffect_(self, f) {
  return MapAccumEffect.mapAccumEffect_(self, O.emptyOf(), (s, a) => O.fold_(s, () => T.succeed(Tp.tuple(O.some(a), a)), a1 => T.map_(f(a1, a), a2 => Tp.tuple(O.some(a2), a2))));
}
/**
 * Statefully and effectfully maps over the elements of this stream to produce all
 * intermediate results.
 *
 * See also `Stream#scanEffect`.
 *
 * @ets_data_first scanReduceEffect_
 */


function scanReduceEffect(f) {
  return self => scanReduceEffect_(self, f);
}
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