JsonProperty required allowed but not respected on record parameters

[mikethea1]

Source/destination types

record R([JsonProperty(Required = Required.Always)] string A, [JsonProperty(Required = Required.Always)] string[] B);

Source/destination JSON

{}

Expected behavior

Deserialization error because the required properties were not present.

Actual behavior

Deserializes successfully with all properties null.

Steps to reproduce

JsonConvert.DeserializeObject<R>("{}");

[MO2k4]

Your attribute is invalid, try to use [property:JsonProperty...]

[elgonzo]

@MO2k4

No, the application of the attribute as shown is not invalid. It's meant to support constructor parameters:

Newtonsoft.Json/Src/Newtonsoft.Json/JsonPropertyAttribute.cs

Lines 34 to 35 in 2eaa475

	[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property | AttributeTargets.Parameter, AllowMultiple = false)]
	public sealed class JsonPropertyAttribute : Attribute