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using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace ARMeilleure.Translation.PTC
{
public class PtcFormatter
{
#region "Deserialize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Dictionary<TKey, TValue> DeserializeDictionary<TKey, TValue>(Stream stream, Func<Stream, TValue> valueFunc) where TKey : unmanaged
{
Dictionary<TKey, TValue> dictionary = new();
int count = DeserializeStructure<int>(stream);
for (int i = 0; i < count; i++)
{
TKey key = DeserializeStructure<TKey>(stream);
TValue value = valueFunc(stream);
dictionary.Add(key, value);
}
return dictionary;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static List<T> DeserializeList<T>(Stream stream) where T : unmanaged
{
List<T> list = new();
int count = DeserializeStructure<int>(stream);
for (int i = 0; i < count; i++)
{
T item = DeserializeStructure<T>(stream);
list.Add(item);
}
return list;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T DeserializeStructure<T>(Stream stream) where T : unmanaged
{
T structure = default(T);
Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
stream.Read(MemoryMarshal.AsBytes(spanT));
return structure;
}
#endregion
#region "GetSerializeSize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetSerializeSizeDictionary<TKey, TValue>(Dictionary<TKey, TValue> dictionary, Func<TValue, int> valueFunc) where TKey : unmanaged
{
int size = 0;
size += Unsafe.SizeOf<int>();
foreach ((_, TValue value) in dictionary)
{
size += Unsafe.SizeOf<TKey>();
size += valueFunc(value);
}
return size;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetSerializeSizeList<T>(List<T> list) where T : unmanaged
{
int size = 0;
size += Unsafe.SizeOf<int>();
size += list.Count * Unsafe.SizeOf<T>();
return size;
}
#endregion
#region "Serialize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeDictionary<TKey, TValue>(Stream stream, Dictionary<TKey, TValue> dictionary, Action<Stream, TValue> valueAction) where TKey : unmanaged
{
SerializeStructure<int>(stream, dictionary.Count);
foreach ((TKey key, TValue value) in dictionary)
{
SerializeStructure<TKey>(stream, key);
valueAction(stream, value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeList<T>(Stream stream, List<T> list) where T : unmanaged
{
SerializeStructure<int>(stream, list.Count);
foreach (T item in list)
{
SerializeStructure<T>(stream, item);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeStructure<T>(Stream stream, T structure) where T : unmanaged
{
Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
stream.Write(MemoryMarshal.AsBytes(spanT));
}
#endregion
}
}
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