ArrayConverter<TCollection, TElement>
sealed class ArrayConverter<TCollection, TElement> : IEnumerableDefaultConverter<TElement[], TElement>
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace System.Text.Json.Serialization.Converters
{
internal sealed class ArrayConverter<TCollection, TElement> : IEnumerableDefaultConverter<TElement[], TElement>
{
internal override bool CanHaveIdMetadata => false;
protected override void Add([In] [System.Runtime.CompilerServices.IsReadOnly] TElement value, ref ReadStack state)
{
((List<TElement>)state.Current.ReturnValue).Add(value);
}
protected override void CreateCollection(ref Utf8JsonReader reader, ref ReadStack state, JsonSerializerOptions options)
{
state.Current.ReturnValue = new List<TElement>();
}
protected override void ConvertCollection(ref ReadStack state, JsonSerializerOptions options)
{
List<TElement> list = (List<TElement>)state.Current.ReturnValue;
state.Current.ReturnValue = list.ToArray();
}
protected override bool OnWriteResume(Utf8JsonWriter writer, TElement[] array, JsonSerializerOptions options, ref WriteStack state)
{
int i = state.Current.EnumeratorIndex;
JsonConverter<TElement> elementConverter = JsonCollectionConverter<TElement[], TElement>.GetElementConverter(ref state);
if (!elementConverter.CanUseDirectReadOrWrite || state.Current.NumberHandling.HasValue) {
for (; i < array.Length; i++) {
TElement value = array[i];
if (!elementConverter.TryWrite(writer, ref value, options, ref state)) {
state.Current.EnumeratorIndex = i;
return false;
}
if (ShouldFlush(writer, ref state)) {
i = (state.Current.EnumeratorIndex = i + 1);
return false;
}
}
} else {
for (; i < array.Length; i++) {
elementConverter.Write(writer, array[i], options);
}
}
return true;
}
}
}