How to keep unused class properties?

[michael-land]

{
  "jsc": {
    "keepClassNames": true,
    "parser": {
      "syntax": "typescript",
      "decorators": true
    },
    "transform": {
      "legacyDecorator": true,
      "decoratorMetadata": true,
      "optimizer": null
    },
    "target": "es2020"
  },
  "module": {
    "type": "commonjs"
  }
}

Input

import { plainToClass } from 'class-transformer';
import { IsString } from 'class-validator';
export class MyPayload {
  @IsString()
  email: string;
}

const d = plainToClass(MyPayload, { email: '123' });
// swc remove email from class after compile, this will output `MyPayload {}` instead of `MyPayload { email: "123"}`
console.log(d);

Output

var _class, _descriptor, _dec, _dec1;
let MyPayload1 = ((_class = class MyPayload {
    constructor(){
        _initializerDefineProperty(this, "email", _descriptor, this);
    }
}) || _class, _dec = (0, _classValidator).IsString(), _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", String), _descriptor = _applyDecoratedDescriptor(_class.prototype, "email", [
    _dec,
    _dec1
], {
    configurable: true,
    enumerable: true,
    writable: true,
    initializer: void 0
}), _class);
exports.MyPayload = MyPayload1;
const d = (0, _classTransformer).plainToClass(MyPayload1, {
    email: '123'
}, {
    ignoreDecorators: true
});
console.log(d);

is there anyway to not strip unused properties? swc remove email field from class after compile, this will output MyPayload {} instead of MyPayload { email: "123"} with class-transformer

[michael-land]

NVM #2117