@aeternity/aepp-calldata/cjs/Serializers/ListSerializer.cjs

Aeternity data serialization library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var RLPInt = _interopRequireWildcard(require("../utils/RLPInt.cjs"));
var _FateTag = _interopRequireDefault(require("../FateTag.cjs"));
var _FateList = _interopRequireDefault(require("../types/FateList.cjs"));
var _BaseSerializer = _interopRequireDefault(require("./BaseSerializer.cjs"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
class ListSerializer extends _BaseSerializer.default {
  serialize(list) {
    const serializedElements = list.items.map(e => {
      return this.globalSerializer.serialize(e);
    }).flat(Infinity);
    const len = list.items.length;
    if (len < 16) {
      const prefix = len << 4 | _FateTag.default.SHORT_LIST;
      return [prefix, ...serializedElements];
    }
    return [_FateTag.default.LONG_LIST, ...RLPInt.encode(len - 16), ...serializedElements];
  }
  deserializeStream(data, typeInfo) {
    const buffer = new Uint8Array(data);
    const prefix = buffer[0];
    let len = 0n;
    let rest = buffer.slice(1);
    if (prefix === _FateTag.default.LONG_LIST) {
      [len, rest] = RLPInt.decode(buffer.slice(1));
      len += 16n;
    }
    if ((prefix & 0x0F) === _FateTag.default.SHORT_LIST) {
      len = BigInt((prefix & 0xF0) >> 4);
    }
    let itemsType;
    if (typeof typeInfo !== 'undefined') {
      itemsType = typeInfo.valuesType;
    }
    let el;
    const elements = [];
    for (let i = 0n; i < len; i++) {
      [el, rest] = this.globalSerializer.deserializeStream(rest, itemsType);
      elements.push(el);
    }
    if (len === 0n) {
      return [new _FateList.default(), rest];
    }
    if (typeof typeInfo === 'undefined') {
      itemsType = elements[0].type;
    }
    return [new _FateList.default(itemsType, elements), rest];
  }
}
var _default = exports.default = ListSerializer;