tupleson/lib/async/handlers/tsonAsyncIterable.js

A hackable JSON serializer/deserializer

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var tsonAsyncIterable_exports = {};
__export(tsonAsyncIterable_exports, {
  tsonAsyncIterable: () => tsonAsyncIterable
});
module.exports = __toCommonJS(tsonAsyncIterable_exports);
var import_asyncErrors = require("../asyncErrors.js");
const ITERATOR_VALUE = 0;
const ITERATOR_ERROR = 1;
const ITERATOR_DONE = 2;
function isAsyncIterable(value) {
  return !!value && typeof value === "object" && typeof value[Symbol.asyncIterator] === "function";
}
const tsonAsyncIterable = {
  async: true,
  deserialize: (opts) => {
    return async function* generator() {
      let next;
      while (next = await opts.reader.read(), !next.done) {
        const { value } = next;
        if (value instanceof import_asyncErrors.TsonStreamInterruptedError) {
          if (value.cause instanceof import_asyncErrors.TsonAbortError) {
            opts.close();
            return;
          }
          throw value;
        }
        switch (value[0]) {
          case ITERATOR_DONE: {
            opts.close();
            return;
          }
          case ITERATOR_ERROR: {
            opts.close();
            throw import_asyncErrors.TsonPromiseRejectionError.from(value[1]);
          }
          case ITERATOR_VALUE: {
            yield value[1];
            break;
          }
        }
      }
    }();
  },
  key: "AsyncIterable",
  serializeIterator: async function* serialize(opts) {
    try {
      for await (const value of opts.value) {
        yield [ITERATOR_VALUE, value];
      }
      yield [ITERATOR_DONE];
    } catch (err) {
      yield [ITERATOR_ERROR, err];
    }
  },
  test: isAsyncIterable
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  tsonAsyncIterable
});
//# sourceMappingURL=tsonAsyncIterable.js.map