| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System.Text.Json.Serialization.Metadata; |
| | | 5 | | |
| | | 6 | | namespace System.Text.Json.Serialization |
| | | 7 | | { |
| | | 8 | | /// <summary> |
| | | 9 | | /// Base class for converters that are able to resume after reading or writing to a buffer. |
| | | 10 | | /// This is used when the Stream-based serialization APIs are used. |
| | | 11 | | /// </summary> |
| | | 12 | | /// <typeparam name="T"></typeparam> |
| | | 13 | | internal abstract class JsonResumableConverter<T> : JsonConverter<T> |
| | | 14 | | { |
| | 2301 | 15 | | public override bool HandleNull => false; |
| | | 16 | | |
| | | 17 | | public sealed override T? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) |
| | 0 | 18 | | { |
| | 0 | 19 | | ArgumentNullException.ThrowIfNull(options); |
| | | 20 | | |
| | | 21 | | // Bridge from resumable to value converters. |
| | | 22 | | |
| | 0 | 23 | | ReadStack state = default; |
| | 0 | 24 | | JsonTypeInfo jsonTypeInfo = options.GetTypeInfoInternal(typeToConvert); |
| | 0 | 25 | | state.Initialize(jsonTypeInfo); |
| | | 26 | | |
| | 0 | 27 | | TryRead(ref reader, typeToConvert, options, ref state, out T? value, out _); |
| | 0 | 28 | | return value; |
| | 0 | 29 | | } |
| | | 30 | | |
| | | 31 | | public sealed override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options) |
| | 0 | 32 | | { |
| | 0 | 33 | | ArgumentNullException.ThrowIfNull(options); |
| | | 34 | | |
| | | 35 | | // Bridge from resumable to value converters. |
| | 0 | 36 | | WriteStack state = default; |
| | 0 | 37 | | JsonTypeInfo typeInfo = options.GetTypeInfoInternal(typeof(T)); |
| | 0 | 38 | | state.Initialize(typeInfo); |
| | | 39 | | |
| | | 40 | | try |
| | 0 | 41 | | { |
| | 0 | 42 | | TryWrite(writer, value, options, ref state); |
| | 0 | 43 | | } |
| | 0 | 44 | | catch |
| | 0 | 45 | | { |
| | 0 | 46 | | state.DisposePendingDisposablesOnException(); |
| | 0 | 47 | | throw; |
| | | 48 | | } |
| | 0 | 49 | | } |
| | | 50 | | } |
| | | 51 | | } |