"use strict";

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

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

var Ref = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../../../../Ref/index.cjs"));

var C = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../core.cjs"));

var ReadWith = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("./readWith.cjs"));

var Unwrap = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("./unwrap.cjs"));

var ZipRight = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("./zipRight.cjs"));

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

/**
 * Creates a channel backed by a buffer. When the buffer is empty, the channel will simply
 * passthrough its input as output. However, when the buffer is non-empty, the value inside
 * the buffer will be passed along as output.
 */
function buffer(empty, isEmpty, ref) {
  return Unwrap.unwrap(Ref.modify_(ref, v => {
    if (isEmpty(v)) {
      return Tp.tuple(ReadWith.readWith(_in => ZipRight.zipRight_(C.write(_in), buffer(empty, isEmpty, ref)), err => C.fail(err), done => C.end(done)), v);
    } else {
      return Tp.tuple(ZipRight.zipRight_(C.write(v), buffer(empty, isEmpty, ref)), empty);
    }
  }));
}
//# sourceMappingURL=buffer.cjs.map