43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
using System;
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using System.Reflection;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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using Myriad.Utils;
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namespace Myriad.Serialization
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{
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public class OptionalConverter: JsonConverter<IOptional>
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{
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public override IOptional? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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var innerType = typeToConvert.GetGenericArguments()[0];
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var inner = JsonSerializer.Deserialize(ref reader, innerType, options);
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// TODO: rewrite to JsonConverterFactory to cut down on reflection
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return (IOptional?) Activator.CreateInstance(
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typeof(Optional<>).MakeGenericType(innerType),
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BindingFlags.Instance | BindingFlags.Public,
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null,
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new[] {inner},
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null);
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}
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public override void Write(Utf8JsonWriter writer, IOptional value, JsonSerializerOptions options)
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{
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var innerType = value.GetType().GetGenericArguments()[0];
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JsonSerializer.Serialize(writer, value.GetValue(), innerType, options);
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}
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public override bool CanConvert(Type typeToConvert)
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{
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if (!typeToConvert.IsGenericType)
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return false;
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if (typeToConvert.GetGenericTypeDefinition() != typeof(Optional<>))
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return false;
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return true;
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}
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}
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} |