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Dumping exceptions in LPRun8 is broken

acfrancisacfrancis
in General

I have a script that dumps an exception:

var e = new Exception("asdf");
e.Dump();

It runs fine in LINQPad and it used to run OK in LPRun as well but I've noticed that lately this errors. I'm using v8.8.9 (X64).

I think it used to work in earlier versions of LINQPad 8 but I can't confirm that. I can confirm that it works in LPRun7:

C:\>"C:\Program Files\LINQPad7\LPRun7.exe" asdf.linq
{
  "TargetSite": null,
  "Message": "asdf",
  "Data": [],
  "InnerException": null,
  "HelpLink": null,
  "Source": null,
  "HResult": -2146233088,
  "StackTrace": null
}

This is the error in LPRun8:

C:\>"C:\Program Files\LINQPad8\LPRun8.exe" asdf.linq
JsonSerializationException: Self referencing loop detected for property 'Content' with type 'LINQPad.Hyperlinq'. Path 'TargetSite.Action.Target.dc'.
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CheckForCircularReference(JsonWriter writer, Object value, JsonProperty property, JsonContract contract, JsonContainerContract containerContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues(JsonWriter writer, Object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, JsonContract& memberContract, Object& memberValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeISerializable(JsonWriter writer, ISerializable value, JsonISerializableContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue(JsonWriter writer, Object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType)
   at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType)
   at Newtonsoft.Json.JsonSerializer.Serialize(JsonWriter jsonWriter, Object value, Type objectType)
   at Newtonsoft.Json.JsonConvert.SerializeObjectInternal(Object value, Type type, JsonSerializer jsonSerializer)
   at Newtonsoft.Json.JsonConvert.SerializeObject(Object value, Type type, Formatting formatting, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.SerializeObject(Object value, Formatting formatting, JsonSerializerSettings settings)
   at LINQPad.ObjectGraph.Formatters.TextOutputWriter.NodeToText(ObjectNode node)
   at LINQPad.ObjectGraph.Formatters.TextOutputWriter.FormatObject(Object value, String heading, String lastHeading, GraphOptions options, Boolean& inline, TimeSpan& formattingTime)
   at LINQPad.ObjectGraph.Formatters.OutputWriter.WriteObject(Object value, String heading, GraphOptions options, Boolean noNewLine)
   at LINQPad.ObjectGraph.Formatters.OutputWriter.WriteLineObject(Object value, String heading, GraphOptions options, Boolean noNewLine)
   at LINQPad.Extensions.DumpCore[T](T o, String description, Nullable`1 depth, Nullable`1 collapseTo, Boolean toDataGrid, String exclude, String include, Nullable`1 alpha, Boolean noTotals, Nullable`1 repeatHeadersAt, Boolean includePrivate, Nullable`1 maxRows, Nullable`1 useInvariantCultureForNumbers, DumpFormatStrings formatStrings, Boolean forceObjectExpansion, Boolean descriptionWasAutoGenerated)
   at LINQPad.Extensions.Dump[T](T o, String description, Nullable`1 depth, Nullable`1 collapseTo, Boolean toDataGrid, String exclude, String include, Nullable`1 alpha, Boolean noTotals, Nullable`1 repeatHeadersAt, Boolean includePrivate)
   at LINQPad.Extensions.Dump[T](T o)
   at UserQuery.Main() in C:\Users\afrancis\AppData\Local\Temp\2\LINQPad8\__ravjmssn\ssjzny\LINQPadQuery:line 2
   at LINQPad.ExecutionModel.ClrQueryRunner.Run()
   at LINQPad.ExecutionModel.Server.RunQuery(QueryRunner runner)
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