text: import _class_call_check from "@swc/helpers/lib/_class_call_check.js";
  import _class_private_field_init from "@swc/helpers/lib/_class_private_field_init.js";
  import _class_private_field_set from "@swc/helpers/lib/_class_private_field_set.js";
  var _foo = /*#__PURE__*/ new WeakMap();
  // @target: es2019
  var C = /*#__PURE__*/ function() {
      "use strict";
      function C() {
          _class_call_check(this, C);
          _class_private_field_init(this, _foo, {
              get: void 0,
              set: set_foo
          });
      }
      var _proto = C.prototype;
      _proto.bar = function bar() {
          var x = _class_private_field_set(this, _foo, 42 * 2);
          console.log(x); // 84
      };
      return C;
  }();
  function set_foo(a) {}
  new C().bar();
  