Stack Overflow in serializing to JSON an Object with double members

Question

Trying to run this code to serialize an object in JSON using dartson generates a Stack Overflow exception when using a double value in a member. How can i solve this problem?

 import 'package:dartson/dartson.dart';


    @MirrorsUsed(targets:const['example'], override:'*')
    import 'dart:mirrors';

    @Entity()
    class GeoFence {
      String label;
      num latitude;
      num longitude;
      num radius;
    }


    main(List<String> args) {
      var dson = new Dartson.JSON();

      GeoFence object = new GeoFence()
        ..label = "test"
        ..latitude = 46.2
        ..longitude = 12
        ..radius = 10;


      String jsonString = dson.encode(object);
      print(jsonString);
    }

I guess you should create a bug report in the GitHub repo of the package. — Günter Zöchbauer, Aug 08 '15 at 15:35

score 2 · Answer 1 · edited Aug 15 '15 at 08:51

2

It's a closed issue, but the serialization of double doesn't work yet GitHub issue

edited Aug 15 '15 at 08:51

Alon Amir

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answered Aug 09 '15 at 20:44

GioLaq

2,489
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score 2 · Accepted Answer · answered Aug 12 '15 at 06:57

I tried your example and it looks like there's an issue with doubles used in "num" defined properties. Please try:

import 'package:dartson/dartson.dart';

@Entity()
class GeoFence {
  String label;
  double latitude;
  double longitude;
  double radius;
}


main(List<String> args) {
  var dson = new Dartson.JSON();

  GeoFence object = new GeoFence()
    ..label = "test"
    ..latitude = 46.2
    ..longitude = 12
    ..radius = 10;


  String jsonString = dson.encode(object);
  print(jsonString);
}

Also please notice that @MirrorUsed annotation is no longer required when using dartson. I'll update the issue on github and take a look at it asap.

Stack Overflow in serializing to JSON an Object with double members

2 Answers2