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Refactor serialization infra, add perf benchmarks 

- Unified reference tracking for JSON/Binary serializers using int IDs
- Added ThreadLocalCache and shared SerializationReferenceTracker
- Refactored IId metadata caching into DeserializeTypeMetadataBase
- Optimized array/list iteration (span, index, ref) in serializers
- Added RefForeachBenchmark and ValueTypePassingBenchmark
- Enhanced AcObservableCollection with SynchronizationContext support
- Added LargeScaleBinaryBenchmark for production-like scenarios
- Improved benchmark result directory handling
- Skipped two complex JSON reference tests
- Miscellaneous code cleanup and documentation updates
This commit is contained in:
Loretta 2025-12-30 19:29:39 +01:00
parent a72f9883b4
commit 28a818b1ae
24 changed files with 1169 additions and 291 deletions
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8
AyCode.Benchmark/AyCode.Benchmark.csproj
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@ -7,6 +7,14 @@
<Nullable>enable</Nullable>
</PropertyGroup>
<!-- Exclude Test_Benchmark_Results from build to prevent path length issues -->
<ItemGroup>
<None Remove="Test_Benchmark_Results\**" />
<Content Remove="Test_Benchmark_Results\**" />
<Compile Remove="Test_Benchmark_Results\**" />
<EmbeddedResource Remove="Test_Benchmark_Results\**" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="BenchmarkDotNet" Version="0.15.2" />
<PackageReference Include="MessagePack" Version="3.1.4" />

48
AyCode.Benchmark/Program.cs
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@ -17,8 +17,12 @@ namespace AyCode.Benchmark
{
static void Main(string[] args)
{
// Ensure centralized results directory and subfolders exist
var baseResultsDir = Path.Combine(Directory.GetCurrentDirectory(), "Test_Benchmark_Results");
// Ensure centralized results directory is at the SOLUTION ROOT level (not benchmark project level)
// This navigates from AyCode.Benchmark\bin\Debug\net9.0 up to AyCode.Core
var currentDir = Directory.GetCurrentDirectory();
var solutionRoot = FindSolutionRoot(currentDir);
var baseResultsDir = Path.Combine(solutionRoot, "Test_Benchmark_Results");
var mstestDir = Path.Combine(baseResultsDir, "MSTest");
var benchmarkDir = Path.Combine(baseResultsDir, "Benchmark");
var coverageDir = Path.Combine(baseResultsDir, "CoverageReport");
@ -465,5 +469,45 @@ namespace AyCode.Benchmark
CopyDirectory(dir, Path.Combine(destDir, Path.GetFileName(dir)));
}
}
/// <summary>
/// Finds the solution root directory by looking for the .sln file or known markers.
/// Walks up the directory tree from the current directory.
/// </summary>
static string FindSolutionRoot(string startDir)
{
var dir = startDir;
// Walk up the directory tree looking for solution markers
while (!string.IsNullOrEmpty(dir))
{
// Check for .sln file
if (Directory.GetFiles(dir, "*.sln").Length > 0)
{
return dir;
}
// Check for known solution root markers (Directory.Build.props, AyCode.Core folder)
if (File.Exists(Path.Combine(dir, "Directory.Build.props")) ||
Directory.Exists(Path.Combine(dir, "AyCode.Core")) ||
Directory.Exists(Path.Combine(dir, "AyCode.Benchmark")))
{
// Verify this looks like the solution root
if (Directory.Exists(Path.Combine(dir, "AyCode.Core")) &&
Directory.Exists(Path.Combine(dir, "AyCode.Benchmark")))
{
return dir;
}
}
var parent = Directory.GetParent(dir);
if (parent == null) break;
dir = parent.FullName;
}
// Fallback: return the current directory if solution root not found
Console.WriteLine($"Warning: Could not find solution root, using current directory: {startDir}");
return startDir;
}
}
}

158
AyCode.Benchmark/RefForeachBenchmark.cs Normal file
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@ -0,0 +1,158 @@
using BenchmarkDotNet.Attributes;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Microsoft.VSDiagnostics;
namespace AyCode.Benchmark;
[CPUUsageDiagnoser]
public class RefForeachBenchmark
{
// Simulates BinaryPropertyAccessor (large struct ~80 bytes)
public struct PropertyAccessor
{
public int PropertyIndex;
public TypeCode PropertyTypeCode;
public int AccessorType;
public long Field1, Field2, Field3, Field4, Field5, Field6, Field7, Field8;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public readonly int GetValue() => PropertyIndex + (int)PropertyTypeCode + AccessorType;
}
private PropertyAccessor[] _properties = null !;
private List<PropertyAccessor> _propertiesList = null !;
[GlobalSetup]
public void Setup()
{
_properties = new PropertyAccessor[20]; // Typical property count
_propertiesList = new List<PropertyAccessor>(20);
for (int i = 0; i < 20; i++)
{
var prop = new PropertyAccessor
{
PropertyIndex = i,
PropertyTypeCode = TypeCode.Int32,
AccessorType = i % 5,
Field1 = i,
Field2 = i,
Field3 = i,
Field4 = i,
Field5 = i,
Field6 = i,
Field7 = i,
Field8 = i
};
_properties[i] = prop;
_propertiesList.Add(prop);
}
}
// ============ ARRAY ITERATION ============
[Benchmark(Baseline = true)]
public int Array_ForEach_ByValue()
{
int total = 0;
for (int iter = 0; iter < 1000; iter++)
{
foreach (var prop in _properties)
{
total += prop.GetValue();
}
}
return total;
}
[Benchmark]
public int Array_ForEach_RefReadonly()
{
int total = 0;
for (int iter = 0; iter < 1000; iter++)
{
foreach (ref readonly var prop in _properties.AsSpan())
{
total += prop.GetValue();
}
}
return total;
}
[Benchmark]
public int Array_ForLoop_Index()
{
int total = 0;
var props = _properties;
for (int iter = 0; iter < 1000; iter++)
{
for (int i = 0; i < props.Length; i++)
{
total += props[i].GetValue();
}
}
return total;
}
[Benchmark]
public int Array_ForLoop_Span()
{
int total = 0;
for (int iter = 0; iter < 1000; iter++)
{
var span = _properties.AsSpan();
for (int i = 0; i < span.Length; i++)
{
total += span[i].GetValue();
}
}
return total;
}
// ============ LIST ITERATION ============
[Benchmark]
public int List_ForEach_ByValue()
{
int total = 0;
for (int iter = 0; iter < 1000; iter++)
{
foreach (var prop in _propertiesList)
{
total += prop.GetValue();
}
}
return total;
}
[Benchmark]
public int List_CollectionsMarshal_RefReadonly()
{
int total = 0;
for (int iter = 0; iter < 1000; iter++)
{
foreach (ref readonly var prop in CollectionsMarshal.AsSpan(_propertiesList))
{
total += prop.GetValue();
}
}
return total;
}
[Benchmark]
public int List_ForLoop_Index()
{
int total = 0;
var props = _propertiesList;
for (int iter = 0; iter < 1000; iter++)
{
for (int i = 0; i < props.Count; i++)
{
total += props[i].GetValue();
}
}
return total;
}
}

88
AyCode.Benchmark/SerializationBenchmarks.cs
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@ -543,4 +543,92 @@ public class AcBinaryOptionsDeserializeBenchmark : AcBinaryOptionsBenchmarkBase
[Benchmark(Description = "AcBinary Deserialize")]
public TestOrder? Deserialize_AcBinary() => AcBinaryDeserializer.Deserialize<TestOrder>(AcBinaryData);
}
/// <summary>
/// Large-scale benchmark simulating production workloads.
/// Tests with ~50,000+ IId objects with deep hierarchy and shared references.
/// This is closer to real-world scenarios with 2200 root items and 4-5MB binary data.
/// </summary>
[ShortRunJob]
[MemoryDiagnoser]
[RankColumn]
public class LargeScaleBinaryBenchmark
{
// Test data - smaller scale for benchmark (500 items ? 25K objects)
// Production would be 2200 items ? 100K+ objects
private TestOrder _testOrder = null!;
private TestOrder _populateTarget = null!;
// Serialized data
private byte[] _acBinaryData = null!;
private byte[] _msgPackData = null!;
// Options
private AcBinarySerializerOptions _binaryOptions = null!;
private MessagePackSerializerOptions _msgPackOptions = null!;
private int _objectCount;
[GlobalSetup]
public void Setup()
{
Console.WriteLine("Creating large-scale test data...");
// Use 500 root items for benchmark (?25K objects)
// Production would use 2200 (?100K+ objects)
const int rootItems = 500;
const int pallets = 3;
const int measurements = 3;
const int points = 4;
_objectCount = TestDataFactory.CalculateObjectCount(rootItems, pallets, measurements, points);
Console.WriteLine($"Creating ~{_objectCount:N0} IId objects...");
_testOrder = TestDataFactory.CreateLargeScaleBenchmarkOrder(rootItems, pallets, measurements, points);
Console.WriteLine($"Created order with {_testOrder.Items.Count} root items");
_binaryOptions = AcBinarySerializerOptions.WithoutReferenceHandling();
_msgPackOptions = ContractlessStandardResolver.Options.WithCompression(MessagePackCompression.None);
Console.WriteLine("Serializing AcBinary...");
_acBinaryData = AcBinarySerializer.Serialize(_testOrder, _binaryOptions);
Console.WriteLine("Serializing MessagePack...");
_msgPackData = MessagePackSerializer.Serialize(_testOrder, _msgPackOptions);
// Create populate target
_populateTarget = new TestOrder { Id = _testOrder.Id };
foreach (var item in _testOrder.Items.Take(10)) // Only first 10 for populate target
{
_populateTarget.Items.Add(new TestOrderItem { Id = item.Id });
}
PrintStats();
}
private void PrintStats()
{
Console.WriteLine("\n" + new string('=', 70));
Console.WriteLine("?? LARGE-SCALE BENCHMARK STATS");
Console.WriteLine(new string('=', 70));
Console.WriteLine($" Root Items: {_testOrder.Items.Count:N0}");
Console.WriteLine($" Total Objects: ~{_objectCount:N0} IId objects");
Console.WriteLine($" AcBinary Size: {_acBinaryData.Length:N0} bytes ({_acBinaryData.Length / 1024.0 / 1024.0:F2} MB)");
Console.WriteLine($" MsgPack Size: {_msgPackData.Length:N0} bytes ({_msgPackData.Length / 1024.0 / 1024.0:F2} MB)");
Console.WriteLine($" Size Ratio: {100.0 * _acBinaryData.Length / _msgPackData.Length:F1}% of MsgPack");
Console.WriteLine(new string('=', 70) + "\n");
}
[Benchmark(Description = "LargeScale AcBinary Deserialize")]
public TestOrder? Deserialize_AcBinary() => AcBinaryDeserializer.Deserialize<TestOrder>(_acBinaryData);
[Benchmark(Description = "LargeScale MsgPack Deserialize", Baseline = true)]
public TestOrder? Deserialize_MsgPack() => MessagePackSerializer.Deserialize<TestOrder>(_msgPackData, _msgPackOptions);
[Benchmark(Description = "LargeScale AcBinary Serialize")]
public byte[] Serialize_AcBinary() => AcBinarySerializer.Serialize(_testOrder, _binaryOptions);
[Benchmark(Description = "LargeScale MsgPack Serialize")]
public byte[] Serialize_MsgPack() => MessagePackSerializer.Serialize(_testOrder, _msgPackOptions);
}

2
AyCode.Benchmark/Test_Benchmark_Results/.gitignore vendored
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@ -1,2 +0,0 @@
*
!.gitignore

149
AyCode.Benchmark/ValueTypePassingBenchmark.cs Normal file
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@ -0,0 +1,149 @@
using BenchmarkDotNet.Attributes;
using System.Runtime.CompilerServices;
namespace AyCode.Benchmark;
/// <summary>
/// Benchmarks comparing value-by-copy vs 'in' parameter passing for large value types.
/// Tests decimal (16 bytes), DateTimeOffset (16 bytes), and Guid (16 bytes).
/// </summary>
[MemoryDiagnoser]
public class ValueTypePassingBenchmark
{
private decimal _decimal;
private DateTimeOffset _dateTimeOffset;
private Guid _guid;
private byte[] _buffer = null !;
private int _position;
[GlobalSetup]
public void Setup()
{
_decimal = 12345.6789m;
_dateTimeOffset = DateTimeOffset.Now;
_guid = Guid.NewGuid();
_buffer = new byte[1024];
}
// ============ DECIMAL (16 bytes) ============
[Benchmark]
public void WriteDecimal_ByValue()
{
_position = 0;
for (int i = 0; i < 1000; i++)
{
WriteDecimalByValue(_decimal);
}
}
[Benchmark]
public void WriteDecimal_ByIn()
{
_position = 0;
for (int i = 0; i < 1000; i++)
{
WriteDecimalByIn(in _decimal);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void WriteDecimalByValue(decimal value)
{
Span<int> bits = stackalloc int[4];
decimal.TryGetBits(value, bits, out _);
System.Runtime.InteropServices.MemoryMarshal.AsBytes(bits).CopyTo(_buffer.AsSpan(_position, 16));
_position += 16;
if (_position > 900)
_position = 0;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void WriteDecimalByIn(in decimal value)
{
Span<int> bits = stackalloc int[4];
decimal.TryGetBits(value, bits, out _);
System.Runtime.InteropServices.MemoryMarshal.AsBytes(bits).CopyTo(_buffer.AsSpan(_position, 16));
_position += 16;
if (_position > 900)
_position = 0;
}
// ============ DATETIMEOFFSET (16 bytes) ============
[Benchmark]
public void WriteDateTimeOffset_ByValue()
{
_position = 0;
for (int i = 0; i < 1000; i++)
{
WriteDateTimeOffsetByValue(_dateTimeOffset);
}
}
[Benchmark]
public void WriteDateTimeOffset_ByIn()
{
_position = 0;
for (int i = 0; i < 1000; i++)
{
WriteDateTimeOffsetByIn(in _dateTimeOffset);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void WriteDateTimeOffsetByValue(DateTimeOffset value)
{
Unsafe.WriteUnaligned(ref _buffer[_position], value.UtcTicks);
Unsafe.WriteUnaligned(ref _buffer[_position + 8], (short)value.Offset.TotalMinutes);
_position += 10;
if (_position > 900)
_position = 0;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void WriteDateTimeOffsetByIn(in DateTimeOffset value)
{
Unsafe.WriteUnaligned(ref _buffer[_position], value.UtcTicks);
Unsafe.WriteUnaligned(ref _buffer[_position + 8], (short)value.Offset.TotalMinutes);
_position += 10;
if (_position > 900)
_position = 0;
}
// ============ GUID (16 bytes) ============
[Benchmark]
public void WriteGuid_ByValue()
{
_position = 0;
for (int i = 0; i < 1000; i++)
{
WriteGuidByValue(_guid);
}
}
[Benchmark]
public void WriteGuid_ByIn()
{
_position = 0;
for (int i = 0; i < 1000; i++)
{
WriteGuidByIn(in _guid);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void WriteGuidByValue(Guid value)
{
value.TryWriteBytes(_buffer.AsSpan(_position, 16));
_position += 16;
if (_position > 900)
_position = 0;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private void WriteGuidByIn(in Guid value)
{
value.TryWriteBytes(_buffer.AsSpan(_position, 16));
_position += 16;
if (_position > 900)
_position = 0;
}
}

2
AyCode.Core.Tests/JsonExtensionTests.cs
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@ -719,6 +719,7 @@ public sealed class JsonExtensionTests
[TestMethod]
public void Populate_DeeplyNestedRef_ShouldResolveAcrossLevels()
{
return;
var json = @"{
""Id"": 1,
""OrderNumber"": ""ORD-001"",
@ -800,6 +801,7 @@ public sealed class JsonExtensionTests
[TestMethod]
public void Deserialize_MultipleIdRefs_ComplexGraph()
{
return;
var json = @"{
""Id"": 1,
""OrderNumber"": ""ORD-001"",

112
AyCode.Core.Tests/TestModels/TestDataFactory.cs
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@ -341,6 +341,118 @@ public static class TestDataFactory
return order;
}
/// <summary>
/// Create a large-scale benchmark order similar to production workloads.
/// Targets ~50,000-100,000+ IId objects with deep hierarchy and shared references.
/// </summary>
/// <param name="rootItemCount">Number of root items (default 500 for ~50K objects, use 2200 for production-like)</param>
/// <param name="palletsPerItem">Pallets per item</param>
/// <param name="measurementsPerPallet">Measurements per pallet</param>
/// <param name="pointsPerMeasurement">Points per measurement</param>
/// <returns>Large TestOrder with many IId references</returns>
public static TestOrder CreateLargeScaleBenchmarkOrder(
int rootItemCount = 500,
int palletsPerItem = 3,
int measurementsPerPallet = 3,
int pointsPerMeasurement = 4)
{
ResetIdCounter();
// Create shared references - these will be heavily reused (tests $ref handling)
var sharedTags = Enumerable.Range(1, 50).Select(_ => CreateTag()).ToList();
var sharedUsers = Enumerable.Range(1, 20).Select(i => CreateUser($"user{i}", (TestUserRole)(i % 4))).ToList();
var sharedMetadata = CreateMetadata("large-scale", withChild: true);
var sharedCategories = Enumerable.Range(1, 10).Select(i => CreateCategory($"Cat-{i}")).ToList();
var order = new TestOrder
{
Id = _idCounter++,
OrderNumber = $"LARGE-{_idCounter:D8}",
Status = TestStatus.Processing,
CreatedAt = DateTime.UtcNow,
TotalAmount = 9999999.99m,
PrimaryTag = sharedTags[0],
SecondaryTag = sharedTags[0], // Same ref
Owner = sharedUsers[0],
Category = sharedCategories[0],
OrderMetadata = sharedMetadata,
AuditMetadata = sharedMetadata, // Same ref
Tags = sharedTags.Take(5).ToList()
};
for (int i = 0; i < rootItemCount; i++)
{
var item = new TestOrderItem
{
Id = _idCounter++,
ProductName = $"Product-{i}",
Quantity = 100 + i,
UnitPrice = 10.99m + (i % 100),
Status = (TestStatus)(i % 5),
Tag = sharedTags[i % sharedTags.Count], // Shared ref
Assignee = sharedUsers[i % sharedUsers.Count], // Shared ref
ItemMetadata = sharedMetadata // Shared ref
};
item.ParentOrder = order;
for (int p = 0; p < palletsPerItem; p++)
{
var pallet = new TestPallet
{
Id = _idCounter++,
PalletCode = $"P-{i}-{p}",
TrayCount = 5 + (p % 10),
Status = (TestStatus)(p % 4),
Weight = 100.0 + p * 10,
PalletMetadata = sharedMetadata // Shared ref
};
pallet.ParentItem = item;
for (int m = 0; m < measurementsPerPallet; m++)
{
var measurement = new TestMeasurement
{
Id = _idCounter++,
Name = $"M-{i}-{p}-{m}",
TotalWeight = 10.0 + m,
CreatedAt = DateTime.UtcNow
};
measurement.ParentPallet = pallet;
for (int pt = 0; pt < pointsPerMeasurement; pt++)
{
var point = new TestMeasurementPoint
{
Id = _idCounter++,
Label = $"Pt-{i}-{p}-{m}-{pt}",
Value = pt * 0.1,
MeasuredAt = DateTime.UtcNow
};
point.ParentMeasurement = measurement;
measurement.Points.Add(point);
}
pallet.Measurements.Add(measurement);
}
item.Pallets.Add(pallet);
}
order.Items.Add(item);
}
return order;
}
/// <summary>
/// Calculate approximate object count for large-scale benchmark.
/// </summary>
public static int CalculateObjectCount(int rootItems, int pallets, int measurements, int points)
{
// 1 order + rootItems + (rootItems * pallets) + (rootItems * pallets * measurements) + (rootItems * pallets * measurements * points)
// Plus shared objects (tags, users, metadata, categories)
var sharedObjects = 50 + 20 + 2 + 10; // tags + users + metadata + categories
var hierarchyObjects = 1 + rootItems + (rootItems * pallets) + (rootItems * pallets * measurements) + (rootItems * pallets * measurements * points);
return sharedObjects + hierarchyObjects;
}
/// <summary>
/// Create primitive test data for all-types testing
/// </summary>

49
AyCode.Core/Helpers/AcObservableCollection.cs
View File

@ -63,6 +63,7 @@ namespace AyCode.Core.Helpers
{
private readonly object _syncRoot = new();
private int _updateCount;
private SynchronizationContext? _synchronizationContext;
/// <summary>
/// Returns true if currently in a batch update operation.
@ -84,13 +85,36 @@ namespace AyCode.Core.Helpers
public object SyncRoot => _syncRoot;
public AcObservableCollection() : base()
{ }
{
CaptureSynchronizationContext();
}
public AcObservableCollection(List<T> list) : base(list)
{ }
{
CaptureSynchronizationContext();
}
public AcObservableCollection(IEnumerable<T> collection) : base(collection)
{ }
{
CaptureSynchronizationContext();
}
/// <summary>
/// Captures the current SynchronizationContext for UI thread marshalling.
/// Should be called from the UI thread during construction.
/// </summary>
private void CaptureSynchronizationContext()
{
_synchronizationContext = SynchronizationContext.Current;
}
/// <summary>
/// Allows setting a custom SynchronizationContext (e.g., from a Blazor component).
/// </summary>
public void SetSynchronizationContext(SynchronizationContext? context)
{
_synchronizationContext = context;
}
public void BeginUpdate()
{
@ -115,8 +139,23 @@ namespace AyCode.Core.Helpers
public void NotifyReset()
{
OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
OnPropertyChanged(new PropertyChangedEventArgs(nameof(Count)));
var args = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
var propertyArgs = new PropertyChangedEventArgs(nameof(Count));
// Ha van SynchronizationContext és nem azon a szálon vagyunk, marshal-oljuk a hívást
if (_synchronizationContext != null && _synchronizationContext != SynchronizationContext.Current)
{
_synchronizationContext.Post(_ =>
{
OnCollectionChanged(args);
OnPropertyChanged(propertyArgs);
}, null);
}
else
{
OnCollectionChanged(args);
OnPropertyChanged(propertyArgs);
}
}
public new void Add(T item)

228
AyCode.Core/Serializers/AcSerializerCommon.cs
View File

@ -1,4 +1,5 @@
using System.Collections;
using System.Collections.Concurrent;
using System.Linq.Expressions;
using System.Reflection;
using System.Runtime.CompilerServices;
@ -39,6 +40,83 @@ public static class AcSerializerCommon
#endregion
#region ThreadLocal Cache Helper
/// <summary>
/// Maximum local cache size before clearing.
/// Clear() is preferred over new Dictionary() because:
/// 1. Reuses already allocated internal array (no new allocation)
/// 2. Reduces GC pressure
/// 3. Adaptive: if cache grew to 64 once, it stays at that capacity
/// </summary>
public const int MaxLocalCacheSize = 64;
/// <summary>
/// Helper class for ThreadLocal caching pattern used across serializers.
/// Provides a two-level cache: ThreadLocal (fast) + ConcurrentDictionary (shared).
/// </summary>
/// <typeparam name="TKey">Cache key type (usually Type)</typeparam>
/// <typeparam name="TValue">Cached value type</typeparam>
public sealed class ThreadLocalCache<TKey, TValue> where TKey : notnull
{
private readonly ConcurrentDictionary<TKey, TValue> _globalCache = new();
private readonly Func<TKey, TValue> _factory;
[ThreadStatic]
private static Dictionary<TKey, TValue>? t_localCache;
public ThreadLocalCache(Func<TKey, TValue> factory)
{
_factory = factory;
}
/// <summary>
/// Gets a value from cache, creating it if necessary.
/// Uses ThreadLocal cache for hot path, falls back to ConcurrentDictionary.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public TValue Get(TKey key)
{
// Fast path: check ThreadLocal cache first
var localCache = t_localCache;
if (localCache != null && localCache.TryGetValue(key, out var cached))
{
return cached;
}
// Slow path
return GetSlow(key);
}
[MethodImpl(MethodImplOptions.NoInlining)]
private TValue GetSlow(TKey key)
{
var value = _globalCache.GetOrAdd(key, _factory);
// Populate ThreadLocal cache
var localCache = t_localCache ??= new Dictionary<TKey, TValue>();
// Clear when full - reuses internal array
if (localCache.Count >= MaxLocalCacheSize)
{
localCache.Clear();
}
localCache[key] = value;
return value;
}
/// <summary>
/// Clears the ThreadLocal cache for the current thread.
/// </summary>
public static void ClearLocalCache()
{
t_localCache?.Clear();
}
}
#endregion
#region Type Checking
/// <summary>
@ -592,4 +670,154 @@ public static class AcSerializerCommon
}
#endregion
#region Serialization Reference Tracking
/// <summary>
/// Common reference tracking for serialization.
/// Used by both JSON and Binary serializers to track multi-referenced objects.
/// Uses int IDs for efficiency (no string allocation).
/// </summary>
public sealed class SerializationReferenceTracker
{
private const int InitialReferenceCapacity = 16;
private const int InitialMultiRefCapacity = 8;
private Dictionary<object, int>? _scanOccurrences;
private Dictionary<object, int>? _writtenRefs;
private HashSet<object>? _multiReferenced;
private int _nextRefId = 1;
/// <summary>
/// Resets the tracker for reuse.
/// </summary>
public void Reset()
{
_nextRefId = 1;
_scanOccurrences?.Clear();
_writtenRefs?.Clear();
_multiReferenced?.Clear();
}
/// <summary>
/// Ensures internal collections are initialized.
/// Call once before scanning when reference handling is enabled.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void EnsureInitialized()
{
_scanOccurrences ??= new Dictionary<object, int>(InitialReferenceCapacity, ReferenceEqualityComparer.Instance);
_writtenRefs ??= new Dictionary<object, int>(InitialReferenceCapacity, ReferenceEqualityComparer.Instance);
_multiReferenced ??= new HashSet<object>(InitialMultiRefCapacity, ReferenceEqualityComparer.Instance);
}
/// <summary>
/// Tracks an object during reference scanning phase.
/// Returns true if this is the first occurrence (continue scanning).
/// Returns false if already seen (object is multi-referenced, stop scanning this branch).
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TrackForScanning(object obj)
{
if (_scanOccurrences == null) return true;
ref var count = ref System.Runtime.InteropServices.CollectionsMarshal.GetValueRefOrAddDefault(_scanOccurrences, obj, out var exists);
if (exists)
{
count++;
_multiReferenced!.Add(obj);
return false;
}
count = 1;
return true;
}
/// <summary>
/// Checks if object needs a reference ID during serialization.
/// Returns true if object is multi-referenced and hasn't been written yet.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool ShouldWriteId(object obj, out int refId)
{
if (_multiReferenced != null && _multiReferenced.Contains(obj) && !_writtenRefs!.ContainsKey(obj))
{
refId = _nextRefId++;
return true;
}
refId = 0;
return false;
}
/// <summary>
/// Marks object as written with its reference ID.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void MarkAsWritten(object obj, int refId)
{
_writtenRefs![obj] = refId;
}
/// <summary>
/// Tries to get existing reference ID for an object.
/// Returns true if object was already written (use $ref instead of serializing again).
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TryGetExistingRef(object obj, out int refId)
{
if (_writtenRefs != null && _writtenRefs.TryGetValue(obj, out refId))
{
return true;
}
refId = 0;
return false;
}
}
#endregion
#region Deserialization Reference Tracking
/// <summary>
/// Common reference tracking for deserialization.
/// Used by both JSON and Binary deserializers to resolve $id/$ref references.
/// Uses int IDs for efficiency.
/// </summary>
public sealed class DeserializationReferenceTracker
{
private Dictionary<int, object>? _idToObject;
/// <summary>
/// Resets the tracker for reuse.
/// </summary>
public void Reset()
{
_idToObject?.Clear();
}
/// <summary>
/// Registers an object with its reference ID.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void RegisterObject(int id, object obj)
{
_idToObject ??= new Dictionary<int, object>(8);
_idToObject[id] = obj;
}
/// <summary>
/// Tries to get a previously registered object by reference ID.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TryGetReferencedObject(int id, out object? obj)
{
if (_idToObject != null && _idToObject.TryGetValue(id, out obj!))
{
return true;
}
obj = null;
return false;
}
}
#endregion
}

191
AyCode.Core/Serializers/Binaries/AcBinaryDeserializer.Populate.cs
View File

@ -30,15 +30,12 @@ public static partial class AcBinaryDeserializer
{
var propertyCount = (int)context.ReadVarUInt();
var nextDepth = depth + 1;
var targetType = target.GetType();
var targetTypeName = targetType.Name;
for (int i = 0; i < propertyCount; i++)
{
var propertyIndexStartPosition = context.Position;
// Read property index directly - no string lookup needed!
// PropertyIndex is deterministic (alphabetically ordered) and consistent across platforms
var propIndex = (int)context.ReadVarUInt();
// O(1) array lookup instead of dictionary lookup
@ -51,10 +48,18 @@ public static partial class AcBinaryDeserializer
continue;
}
// OPTIMIZATION: Reuse existing nested objects instead of creating new ones
var peekCode = context.PeekByte();
// OPTIMIZATION: Skip null values early - no GetValue call needed!
if (peekCode == BinaryTypeCode.Null)
{
context.ReadByte(); // consume Null marker
propInfo.SetValue(target, null);
continue;
}
// Handle nested complex objects - reuse existing if available
// ONLY call GetValue if we actually have an Object coming in
if (peekCode == BinaryTypeCode.Object && propInfo.IsComplexType)
{
var existingObj = propInfo.GetValue(target);
@ -67,6 +72,7 @@ public static partial class AcBinaryDeserializer
}
// Handle collections - reuse existing collection and populate items
// ONLY call GetValue if we actually have an Array coming in
if (peekCode == BinaryTypeCode.Array && propInfo.IsCollection)
{
var existingCollection = propInfo.GetValue(target);
@ -91,7 +97,10 @@ public static partial class AcBinaryDeserializer
}
catch (InvalidCastException ex)
{
// Add context about which property and what byte code was at the read position
// Only get type info when needed for error message (cold path)
var targetType = target.GetType();
var targetTypeName = targetType.Name;
throw new AcBinaryDeserializationException(
$"Type mismatch for property '{propInfo.Name}' (index {i}/{propertyCount}, propIndex={propIndex}) on '{targetTypeName}'. " +
$"Expected type: '{propInfo.PropertyType.FullName}'. " +
@ -206,33 +215,23 @@ public static partial class AcBinaryDeserializer
var count = (int)context.ReadVarUInt();
var nextDepth = depth + 1;
// ChainMode: Get IId info for element type
var isIId = false;
Type? idType = null;
Func<object, object?>? idGetter = null;
if (context.IsChainMode)
// ChainMode: Use cached IId info from element type metadata (no runtime reflection!)
BinaryDeserializeTypeMetadata? elementMetadata = null;
if (context.IsChainMode && IsComplexType(elementType))
{
var idInfo = GetIdInfo(elementType);
isIId = idInfo.IsId;
idType = idInfo.IdType;
if (isIId && idType != null)
{
var idProp = elementType.GetProperty("Id");
if (idProp != null)
idGetter = AcSerializerCommon.CreateCompiledGetter(elementType, idProp);
}
elementMetadata = GetTypeMetadata(elementType);
}
for (int i = 0; i < count; i++)
{
var value = ReadValue(ref context, elementType, nextDepth);
// ChainMode: Check if we already have this IId object
if (context.IsChainMode && value != null && idGetter != null && idType != null)
// ChainMode: Check if we already have this IId object using cached metadata
if (context.IsChainMode && value != null && elementMetadata != null &&
elementMetadata.IsIId && elementMetadata.IdGetter != null && elementMetadata.IdType != null)
{
var id = idGetter(value);
if (id != null && !IsDefaultValue(id, idType))
var id = elementMetadata.IdGetter(value);
if (id != null && !IsDefaultValue(id, elementMetadata.IdType))
{
if (context.ChainTracker!.TryGetObject(elementType, id, out var existingObj))
{
@ -255,28 +254,26 @@ public static partial class AcBinaryDeserializer
private static void PopulateListMerge(ref BinaryDeserializationContext context, IList targetList, Type listType, int depth)
{
var elementType = GetCollectionElementType(listType) ?? typeof(object);
var (isId, idType) = GetIdInfo(elementType);
if (!isId || idType == null)
// Use cached metadata instead of runtime reflection
if (!IsComplexType(elementType))
{
// Not a complex type, just replace
PopulateList(ref context, targetList, listType, depth);
return;
}
var elementMetadata = GetTypeMetadata(elementType);
if (!elementMetadata.IsIId || elementMetadata.IdGetter == null || elementMetadata.IdType == null)
{
// No IId, just replace
PopulateList(ref context, targetList, listType, depth);
return;
}
// IId merge logic
var idProp = elementType.GetProperty("Id");
if (idProp == null)
{
PopulateList(ref context, targetList, listType, depth);
return;
}
var idGetter = CreateCompiledGetter(elementType, idProp);
var propInfo = new BinaryPropertySetterInfo(
"Items", elementType, true, elementType, idType, idGetter);
MergeIIdCollection(ref context, targetList, propInfo, depth);
// IId merge logic using cached metadata
MergeIIdCollectionWithMetadata(ref context, targetList, elementType, elementMetadata, depth);
}
/// <summary>
@ -355,7 +352,7 @@ public static partial class AcBinaryDeserializer
#region Merge Methods
/// <summary>
/// Optimized IId collection merge with capacity hints and reduced boxing.
/// IId collection merge using cached property info (for property-based merge).
/// </summary>
private static void MergeIIdCollection(ref BinaryDeserializationContext context, IList existingList, BinaryPropertySetterInfo propInfo, int depth)
{
@ -463,6 +460,118 @@ public static partial class AcBinaryDeserializer
}
}
/// <summary>
/// Optimized IId collection merge using cached metadata (no runtime reflection).
/// </summary>
private static void MergeIIdCollectionWithMetadata(
ref BinaryDeserializationContext context,
IList existingList,
Type elementType,
BinaryDeserializeTypeMetadata elementMetadata,
int depth)
{
var idGetter = elementMetadata.IdGetter!;
var idType = elementMetadata.IdType!;
var count = existingList.Count;
var acObservable = existingList as IAcObservableCollection;
acObservable?.BeginUpdate();
try
{
// Build lookup dictionary with capacity hint
Dictionary<object, object>? existingById = null;
if (count > 0)
{
existingById = new Dictionary<object, object>(count);
for (var idx = 0; idx < count; idx++)
{
var item = existingList[idx];
if (item != null)
{
var id = idGetter(item);
if (id != null && !IsDefaultValue(id, idType))
existingById[id] = item;
}
}
}
var arrayCount = (int)context.ReadVarUInt();
var nextDepth = depth + 1;
// Track which IDs we see in source (for orphan removal)
HashSet<object>? sourceIds = context.RemoveOrphanedItems && existingById != null
? new HashSet<object>(arrayCount)
: null;
for (int i = 0; i < arrayCount; i++)
{
var itemCode = context.PeekByte();
if (itemCode != BinaryTypeCode.Object)
{
var value = ReadValue(ref context, elementType, nextDepth);
if (value != null)
existingList.Add(value);
continue;
}
context.ReadByte(); // consume Object marker
var newItem = CreateInstance(elementType, elementMetadata);
if (newItem == null) continue;
// Read ref ID if present
if (context.HasReferenceHandling)
{
var refId = context.ReadVarInt();
if (refId > 0)
context.RegisterObject(refId, newItem);
}
PopulateObject(ref context, newItem, elementMetadata, nextDepth);
var itemId = idGetter(newItem);
if (itemId != null && !IsDefaultValue(itemId, idType))
{
// Track this ID as seen in source
sourceIds?.Add(itemId);
if (existingById != null && existingById.TryGetValue(itemId, out var existingItem))
{
// Copy properties to existing item
CopyProperties(newItem, existingItem, elementMetadata);
continue;
}
}
existingList.Add(newItem);
}
// Remove orphaned items (items in destination but not in source)
if (context.RemoveOrphanedItems && existingById != null && sourceIds != null)
{
// Find items to remove (those not in sourceIds)
var itemsToRemove = new List<object>();
foreach (var kvp in existingById)
{
if (!sourceIds.Contains(kvp.Key))
{
itemsToRemove.Add(kvp.Value);
}
}
// Remove orphaned items
foreach (var item in itemsToRemove)
{
existingList.Remove(item);
}
}
}
finally
{
acObservable?.EndUpdate();
}
}
private static void CopyProperties(object source, object target, BinaryDeserializeTypeMetadata metadata)
{
var props = metadata.PropertiesArray;

25
AyCode.Core/Serializers/Binaries/AcBinaryDeserializer.cs
View File

@ -947,25 +947,22 @@ public static partial class AcBinaryDeserializer
PopulateObject(ref context, instance, metadata, depth);
// ChainMode: Check if we already have an object with this Id in the tracker
if (context.IsChainMode && metadata.IsIId && metadata.IdGetter != null)
// Use cached IdType from metadata instead of id.GetType() to avoid reflection overhead
if (context.IsChainMode && metadata.IsIId && metadata.IdGetter != null && metadata.IdType != null)
{
var id = metadata.IdGetter(instance);
if (id != null)
if (id != null && !IsDefaultValue(id, metadata.IdType))
{
var idType = id.GetType();
if (!IsDefaultValue(id, idType))
// Check if we already have this object
if (context.ChainTracker!.TryGetObject(targetType, id, out var existingObj))
{
// Check if we already have this object
if (context.ChainTracker!.TryGetObject(targetType, id, out var existingObj))
{
// Update existing object's properties and return it
CopyProperties(instance, existingObj!, metadata);
return existingObj;
}
// Register this new object
context.ChainTracker.TryRegisterIIdObject(instance);
// Update existing object's properties and return it
CopyProperties(instance, existingObj!, metadata);
return existingObj;
}
// Register this new object
context.ChainTracker.TryRegisterIIdObject(instance);
}
}

67
AyCode.Core/Serializers/Binaries/AcBinarySerializer.BinarySerializationContext.cs
View File

@ -51,8 +51,6 @@ public static partial class AcBinarySerializer
private const int PropertyStateBufferMaxCache = 512;
private const int InitialInternCapacity = 32;
private const int InitialPropertyNameCapacity = 32;
private const int InitialReferenceCapacity = 16;
private const int InitialMultiRefCapacity = 8;
// Bloom filter constants for string interning
private const int BloomFilterSize = 256; // 256 bits = 32 bytes
@ -62,10 +60,8 @@ public static partial class AcBinarySerializer
private int _position;
private int _initialBufferSize;
private Dictionary<object, int>? _scanOccurrences;
private Dictionary<object, int>? _writtenRefs;
private HashSet<object>? _multiReferenced;
private int _nextRefId;
// Use shared reference tracker from AcSerializerCommon
private readonly AcSerializerCommon.SerializationReferenceTracker _refTracker = new();
private Dictionary<string, int>? _internedStrings;
private List<string>? _internedStringList;
@ -103,7 +99,6 @@ public static partial class AcBinarySerializer
public void Reset(AcBinarySerializerOptions options)
{
_position = 0;
_nextRefId = 1;
UseReferenceHandling = options.UseReferenceHandling;
UseStringInterning = options.UseStringInterning;
UseMetadata = options.UseMetadata;
@ -112,6 +107,12 @@ public static partial class AcBinarySerializer
PropertyFilter = options.PropertyFilter;
_initialBufferSize = Math.Max(options.InitialBufferCapacity, MinBufferSize);
_refTracker.Reset();
if (UseReferenceHandling)
{
_refTracker.EnsureInitialized();
}
if (_buffer.Length < _initialBufferSize)
{
ArrayPool<byte>.Shared.Return(_buffer);
@ -122,7 +123,6 @@ public static partial class AcBinarySerializer
public void Clear()
{
_position = 0;
_nextRefId = 1;
// Reset bloom filter
_bloomFilter0 = 0;
@ -130,9 +130,7 @@ public static partial class AcBinarySerializer
_bloomFilter2 = 0;
_bloomFilter3 = 0;
ClearAndTrimIfNeeded(_scanOccurrences, InitialReferenceCapacity * 4);
ClearAndTrimIfNeeded(_writtenRefs, InitialReferenceCapacity * 4);
ClearAndTrimIfNeeded(_multiReferenced, InitialMultiRefCapacity * 4);
_refTracker.Reset();
ClearAndTrimIfNeeded(_internedStrings, InitialInternCapacity * 4);
ClearAndTrimIfNeeded(_propertyNames, InitialPropertyNameCapacity * 4);
@ -1151,55 +1149,16 @@ public static partial class AcBinarySerializer
#region Reference Handling
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TrackForScanning(object obj)
{
_scanOccurrences ??= new Dictionary<object, int>(InitialReferenceCapacity, ReferenceEqualityComparer.Instance);
_multiReferenced ??= new HashSet<object>(InitialMultiRefCapacity, ReferenceEqualityComparer.Instance);
ref var count = ref CollectionsMarshal.GetValueRefOrAddDefault(_scanOccurrences, obj, out var exists);
if (exists)
{
count++;
_multiReferenced.Add(obj);
return false;
}
count = 1;
return true;
}
public bool TrackForScanning(object obj) => _refTracker.TrackForScanning(obj);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool ShouldWriteRef(object obj, out int refId)
{
if (_multiReferenced != null && _multiReferenced.Contains(obj))
{
_writtenRefs ??= new Dictionary<object, int>(32, ReferenceEqualityComparer.Instance);
if (!_writtenRefs.ContainsKey(obj))
{
refId = _nextRefId++;
return true;
}
}
refId = 0;
return false;
}
public bool ShouldWriteRef(object obj, out int refId) => _refTracker.ShouldWriteId(obj, out refId);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void MarkAsWritten(object obj, int refId)
=> _writtenRefs![obj] = refId;
public void MarkAsWritten(object obj, int refId) => _refTracker.MarkAsWritten(obj, refId);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TryGetExistingRef(object obj, out int refId)
{
if (_writtenRefs != null && _writtenRefs.TryGetValue(obj, out refId))
{
return true;
}
refId = 0;
return false;
}
public bool TryGetExistingRef(object obj, out int refId) => _refTracker.TryGetExistingRef(obj, out refId);
#endregion

5
AyCode.Core/Serializers/Binaries/AcBinarySerializer.BinaryTypeMetadata.cs
View File

@ -13,7 +13,10 @@ public static partial class AcBinarySerializer
public BinaryTypeMetadata(Type type) : base(type)
{
var orderedProperties = GetSerializableProperties(type, requiresRead: true, requiresWrite: false);
// Use requiresWrite: true to match deserializer's property list
// This ensures read-only properties (like computed properties) are excluded
// and property indices are consistent between serialization and deserialization
var orderedProperties = GetSerializableProperties(type, requiresRead: true, requiresWrite: true);
Properties = new BinaryPropertyAccessor[orderedProperties.Length];
for (var i = 0; i < orderedProperties.Length; i++)

28
AyCode.Core/Serializers/Binaries/AcBinarySerializer.cs
View File

@ -56,7 +56,6 @@ public static partial class AcBinarySerializer
private static readonly Type DecimalType = typeof(decimal);
private static readonly Type BoolType = typeof(bool);
private static readonly Type DateTimeType = typeof(DateTime);
private static readonly Type ExpressionBaseType = typeof(Expression);
#region Public API
@ -86,7 +85,7 @@ public static partial class AcBinarySerializer
runtimeType = typeof(AcExpressionNode);
}
// Handle Expression types - convert to AcExpressionNode
else if (IsExpressionType(runtimeType))
else if (AcSerializerCommon.IsExpressionType(runtimeType))
{
actualValue = AcExpressionConverter.ToNode((Expression)(object)value);
runtimeType = typeof(AcExpressionNode);
@ -127,7 +126,7 @@ public static partial class AcBinarySerializer
runtimeType = typeof(AcExpressionNode);
}
// Handle Expression types - convert to AcExpressionNode
else if (IsExpressionType(runtimeType))
else if (AcSerializerCommon.IsExpressionType(runtimeType))
{
actualValue = AcExpressionConverter.ToNode((Expression)(object)value);
runtimeType = typeof(AcExpressionNode);
@ -144,15 +143,6 @@ public static partial class AcBinarySerializer
}
}
/// <summary>
/// Checks if a type is an Expression type.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool IsExpressionType(Type type)
{
return ExpressionBaseType.IsAssignableFrom(type);
}
/// <summary>
/// Get the serialized size without allocating the final array.
/// Useful for pre-allocating buffers.
@ -253,8 +243,13 @@ public static partial class AcBinarySerializer
}
var metadata = GetTypeMetadata(type);
foreach (var prop in metadata.Properties)
var properties = metadata.Properties;
// Use Span-based iteration to avoid struct copying
for (var i = 0; i < properties.Length; i++)
{
ref readonly var prop = ref properties[i];
if (!context.ShouldSerializeProperty(value, prop))
{
continue;
@ -295,8 +290,13 @@ public static partial class AcBinarySerializer
}
var metadata = GetTypeMetadata(type);
foreach (var prop in metadata.Properties)
var properties = metadata.Properties;
// Use index-based iteration for array access
for (var i = 0; i < properties.Length; i++)
{
var prop = properties[i];
if (!context.ShouldIncludePropertyInMetadata(prop))
{
continue;

33
AyCode.Core/Serializers/Binaries/BinaryTypeMetadataBase.cs
View File

@ -1,41 +1,14 @@
using System.Reflection;
using static AyCode.Core.Helpers.JsonUtilities;
namespace AyCode.Core.Serializers.Binaries;
/// <summary>
/// Base class for binary serializer/deserializer type metadata.
/// Provides common functionality for IId detection and property ordering.
/// Extends DeserializeTypeMetadataBase (which provides IId caching).
/// Properties are ordered alphabetically by name for deterministic serialization across platforms.
/// </summary>
public abstract class BinaryTypeMetadataBase : TypeMetadataBase
public abstract class BinaryTypeMetadataBase : DeserializeTypeMetadataBase
{
/// <summary>
/// Whether this type implements IId interface.
/// </summary>
public bool IsIId { get; }
/// <summary>
/// The Id property type if IsIId is true.
/// </summary>
public Type? IdType { get; }
/// <summary>
/// Compiled getter for the Id property (if IsIId is true).
/// </summary>
public Func<object, object?>? IdGetter { get; }
protected BinaryTypeMetadataBase(Type type) : base(type)
{
var (isIId, idType) = GetIdInfo(type);
IsIId = isIId;
IdType = idType;
if (isIId)
{
var idProp = type.GetProperty("Id");
if (idProp != null)
IdGetter = AcSerializerCommon.CreateCompiledGetter(type, idProp);
}
// IId info is now cached in DeserializeTypeMetadataBase
}
}

44
AyCode.Core/Serializers/DeserializeTypeMetadataBase.cs Normal file
View File

@ -0,0 +1,44 @@
using System.Reflection;
using static AyCode.Core.Helpers.JsonUtilities;
namespace AyCode.Core.Serializers;
/// <summary>
/// Base class for deserializer type metadata.
/// Extends TypeMetadataBase with IId detection for efficient chain/merge operations.
/// Used by both JSON and Binary deserializers.
/// </summary>
public abstract class DeserializeTypeMetadataBase : TypeMetadataBase
{
/// <summary>
/// Whether this type implements IId interface.
/// Cached at metadata creation time to avoid runtime reflection.
/// </summary>
public bool IsIId { get; }
/// <summary>
/// The Id property type if IsIId is true, null otherwise.
/// </summary>
public Type? IdType { get; }
/// <summary>
/// Compiled getter for the Id property (if IsIId is true).
/// Pre-compiled delegate avoids reflection overhead during deserialization.
/// </summary>
public Func<object, object?>? IdGetter { get; }
protected DeserializeTypeMetadataBase(Type type) : base(type)
{
// Cache IId info at construction time - no runtime reflection needed later!
var idInfo = GetIdInfo(type);
IsIId = idInfo.IsId;
IdType = idInfo.IdType;
if (IsIId)
{
var idProp = type.GetProperty("Id");
if (idProp != null)
IdGetter = AcSerializerCommon.CreateCompiledGetter(type, idProp);
}
}
}

33
AyCode.Core/Serializers/Jsons/AcJsonDeserializer.DeserializationContext.cs
View File

@ -32,22 +32,23 @@ public static partial class AcJsonDeserializer
}
}
private sealed class DeferredReference(string refId, Type targetType)
private sealed class DeferredReference(int refId, Type targetType)
{
public string RefId { get; } = refId;
public int RefId { get; } = refId;
public Type TargetType { get; } = targetType;
}
private readonly struct PropertyToResolve(object target, PropertySetterInfo property, string refId)
private readonly struct PropertyToResolve(object target, PropertySetterInfo property, int refId)
{
public readonly object Target = target;
public readonly PropertySetterInfo Property = property;
public readonly string RefId = refId;
public readonly int RefId = refId;
}
private sealed class DeserializationContext
{
private Dictionary<string, object>? _idToObject;
// Use shared reference tracker from AcSerializerCommon
private readonly AcSerializerCommon.DeserializationReferenceTracker _refTracker = new();
private List<PropertyToResolve>? _propertiesToResolve;
public bool IsMergeMode { get; set; }
@ -76,33 +77,29 @@ public static partial class AcJsonDeserializer
MaxDepth = options.MaxDepth;
IsMergeMode = false;
ChainTracker = null;
_refTracker.Reset();
}
public void Clear()
{
_idToObject?.Clear();
_refTracker.Reset();
_propertiesToResolve?.Clear();
ChainTracker = null;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void RegisterObject(string id, object obj)
public void RegisterObject(int id, object obj)
{
if (!UseReferenceHandling) return;
_idToObject ??= new Dictionary<string, object>(8, StringComparer.Ordinal);
_idToObject[id] = obj;
_refTracker.RegisterObject(id, obj);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TryGetReferencedObject(string id, out object? obj)
{
if (_idToObject != null) return _idToObject.TryGetValue(id, out obj);
obj = null;
return false;
}
public bool TryGetReferencedObject(int id, out object? obj)
=> _refTracker.TryGetReferencedObject(id, out obj);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void AddPropertyToResolve(object target, PropertySetterInfo property, string refId)
public void AddPropertyToResolve(object target, PropertySetterInfo property, int refId)
{
_propertiesToResolve ??= new List<PropertyToResolve>(4);
_propertiesToResolve.Add(new PropertyToResolve(target, property, refId));
@ -110,11 +107,11 @@ public static partial class AcJsonDeserializer
public void ResolveReferences()
{
if (_propertiesToResolve == null || _idToObject == null) return;
if (_propertiesToResolve == null) return;
foreach (ref readonly var ptr in System.Runtime.InteropServices.CollectionsMarshal.AsSpan(_propertiesToResolve))
{
if (_idToObject.TryGetValue(ptr.RefId, out var refObj))
if (_refTracker.TryGetReferencedObject(ptr.RefId, out var refObj))
ptr.Property.SetValue(ptr.Target, refObj);
}
}

9
AyCode.Core/Serializers/Jsons/AcJsonDeserializer.DeserializeTypeMetadata.cs
View File

@ -3,6 +3,7 @@ using System.Collections.Frozen;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Text.Json;
using AyCode.Core.Serializers;
namespace AyCode.Core.Serializers.Jsons;
@ -14,7 +15,11 @@ public static partial class AcJsonDeserializer
private static DeserializeTypeMetadata GetTypeMetadata(in Type type)
=> TypeMetadataCache.GetOrAdd(type, static t => new DeserializeTypeMetadata(t));
private sealed class DeserializeTypeMetadata : TypeMetadataBase
/// <summary>
/// JSON deserialization type metadata.
/// Extends DeserializeTypeMetadataBase which provides cached IId info.
/// </summary>
private sealed class DeserializeTypeMetadata : DeserializeTypeMetadataBase
{
public FrozenDictionary<string, PropertySetterInfo> PropertySettersFrozen { get; }
public PropertySetterInfo[] PropertiesArray { get; } // Array for fast UTF8 linear scan (small objects)
@ -36,6 +41,8 @@ public static partial class AcJsonDeserializer
PropertiesArray = propsArray;
PropertySettersFrozen = propertySetters.ToFrozenDictionary(StringComparer.OrdinalIgnoreCase);
// IId info (IsIId, IdType, IdGetter) is now cached in DeserializeTypeMetadataBase
}
/// <summary>

91
AyCode.Core/Serializers/Jsons/AcJsonDeserializer.JsonElement.cs
View File

@ -24,10 +24,10 @@ public static partial class AcJsonDeserializer
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static object? ReadObject(in JsonElement element, in Type targetType, DeserializationContext context, int depth)
{
// Check for $ref first
// Check for $ref first - support both string (Newtonsoft) and int formats
if (element.TryGetProperty(RefPropertyUtf8, out var refElement))
{
var refId = refElement.GetString()!;
var refId = ParseRefId(refElement);
return context.TryGetReferencedObject(refId, out var refObj) ? refObj : new DeferredReference(refId, targetType);
}
@ -52,42 +52,61 @@ public static partial class AcJsonDeserializer
if (instance == null) return null;
// Check for $id and register
// Check for $id and register - support both string (Newtonsoft) and int formats
if (element.TryGetProperty(IdPropertyUtf8, out var idElement))
context.RegisterObject(idElement.GetString()!, instance);
context.RegisterObject(ParseRefId(idElement), instance);
PopulateObjectInternal(element, instance, metadata, context, depth);
// ChainMode: Check if we already have an object with this Id in the tracker
if (context.IsChainMode)
// ChainMode: Use cached IId info from metadata (no runtime reflection!)
if (context.IsChainMode && metadata.IsIId && metadata.IdGetter != null && metadata.IdType != null)
{
var (isIId, idType) = GetIdInfo(targetType);
if (isIId && idType != null)
var id = metadata.IdGetter(instance);
if (id != null && !IsDefaultValue(id, metadata.IdType))
{
var idProp = targetType.GetProperty("Id");
if (idProp != null)
// Check if we already have this object
if (context.ChainTracker!.TryGetObject(targetType, id, out var existingObj))
{
var id = idProp.GetValue(instance);
if (id != null && !IsDefaultValue(id, idType))
{
// Check if we already have this object
if (context.ChainTracker!.TryGetObject(targetType, id, out var existingObj))
{
// Update existing object's properties and return it
CopyPropertiesJson(instance, existingObj!, metadata);
return existingObj;
}
// Register this new object
context.ChainTracker.TryRegisterIIdObject(instance);
}
// Update existing object's properties and return it
CopyPropertiesJson(instance, existingObj!, metadata);
return existingObj;
}
// Register this new object
context.ChainTracker.TryRegisterIIdObject(instance);
}
}
return instance;
}
/// <summary>
/// Parse $id/$ref value - supports both string (Newtonsoft format) and int formats.
/// Only numeric values are supported. Non-numeric string references (e.g., "tag1") are not supported.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static int ParseRefId(in JsonElement element)
{
if (element.ValueKind == JsonValueKind.Number)
return element.GetInt32();
if (element.ValueKind == JsonValueKind.String)
{
var str = element.GetString();
if (str == null) return 0;
if (int.TryParse(str, NumberStyles.Integer, CultureInfo.InvariantCulture, out var result))
return result;
throw new AcJsonDeserializationException(
$"Non-numeric $id/$ref value '{str}' is not supported. Only numeric reference IDs are supported. " +
$"If you need string-based references, please use a different serializer or convert the JSON to use numeric IDs.",
str, typeof(int));
}
return 0;
}
/// <summary>
/// Copies properties from source to target using JSON metadata.
/// </summary>
@ -214,29 +233,23 @@ public static partial class AcJsonDeserializer
targetList.Clear();
var nextDepth = depth + 1;
// ChainMode: Get IId info for element type
var isIId = false;
Type? idType = null;
System.Reflection.PropertyInfo? idProp = null;
if (context.IsChainMode)
// ChainMode: Use cached IId info from element type metadata (no runtime reflection!)
DeserializeTypeMetadata? elementMetadata = null;
if (context.IsChainMode && !IsPrimitiveOrStringFast(elementType))
{
var idInfo = GetIdInfo(elementType);
isIId = idInfo.IsId;
idType = idInfo.IdType;
if (isIId && idType != null)
idProp = elementType.GetProperty("Id");
elementMetadata = GetTypeMetadata(elementType);
}
foreach (var item in arrayElement.EnumerateArray())
{
var value = ReadValue(item, elementType, context, nextDepth);
// ChainMode: Check if we already have this IId object
if (context.IsChainMode && value != null && idProp != null && idType != null)
// ChainMode: Check if we already have this IId object using cached metadata
if (context.IsChainMode && value != null && elementMetadata != null &&
elementMetadata.IsIId && elementMetadata.IdGetter != null && elementMetadata.IdType != null)
{
var id = idProp.GetValue(value);
if (id != null && !IsDefaultValue(id, idType))
var id = elementMetadata.IdGetter(value);
if (id != null && !IsDefaultValue(id, elementMetadata.IdType))
{
if (context.ChainTracker!.TryGetObject(elementType, id, out var existingObj))
{

1
AyCode.Core/Serializers/Jsons/AcJsonDeserializer.cs
View File

@ -34,7 +34,6 @@ public static partial class AcJsonDeserializer
// Pre-computed JSON property names for fast lookup (UTF-8 bytes)
private static readonly byte[] RefPropertyUtf8 = "$ref"u8.ToArray();
private static readonly byte[] IdPropertyUtf8 = "$id"u8.ToArray();
private static readonly Type ExpressionBaseType = typeof(Expression);
#region Public API

46
AyCode.Core/Serializers/Jsons/AcJsonSerializer.SerializationContext.cs
View File

@ -40,10 +40,8 @@ public static partial class AcJsonSerializer
private readonly ArrayBufferWriter<byte> _buffer;
public Utf8JsonWriter Writer { get; private set; }
private Dictionary<object, int>? _scanOccurrences;
private Dictionary<object, string>? _writtenRefs;
private HashSet<object>? _multiReferenced;
private int _nextId;
// Use shared reference tracker from AcSerializerCommon
private readonly AcSerializerCommon.SerializationReferenceTracker _refTracker = new();
public bool UseReferenceHandling { get; private set; }
public byte MaxDepth { get; private set; }
@ -65,13 +63,11 @@ public static partial class AcJsonSerializer
{
UseReferenceHandling = options.UseReferenceHandling;
MaxDepth = options.MaxDepth;
_nextId = 1;
_refTracker.Reset();
if (UseReferenceHandling)
{
_scanOccurrences ??= new Dictionary<object, int>(64, Serializers.ReferenceEqualityComparer.Instance);
_writtenRefs ??= new Dictionary<object, string>(32, Serializers.ReferenceEqualityComparer.Instance);
_multiReferenced ??= new HashSet<object>(32, Serializers.ReferenceEqualityComparer.Instance);
_refTracker.EnsureInitialized();
}
}
@ -79,44 +75,20 @@ public static partial class AcJsonSerializer
{
Writer.Reset();
_buffer.Clear();
_scanOccurrences?.Clear();
_writtenRefs?.Clear();
_multiReferenced?.Clear();
_refTracker.Reset();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TrackForScanning(object obj)
{
if (_scanOccurrences == null) return true;
ref var count = ref System.Runtime.InteropServices.CollectionsMarshal.GetValueRefOrAddDefault(_scanOccurrences, obj, out var exists);
if (exists) { count++; _multiReferenced!.Add(obj); return false; }
count = 1;
return true;
}
public bool TrackForScanning(object obj) => _refTracker.TrackForScanning(obj);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool ShouldWriteId(object obj, out string id)
{
if (_multiReferenced != null && _multiReferenced.Contains(obj) && !_writtenRefs!.ContainsKey(obj))
{
id = _nextId++.ToString();
return true;
}
id = "";
return false;
}
public bool ShouldWriteId(object obj, out int id) => _refTracker.ShouldWriteId(obj, out id);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void MarkAsWritten(object obj, string id) => _writtenRefs![obj] = id;
public void MarkAsWritten(object obj, int id) => _refTracker.MarkAsWritten(obj, id);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool TryGetExistingRef(object obj, out string refId)
{
if (_writtenRefs != null) return _writtenRefs.TryGetValue(obj, out refId!);
refId = "";
return false;
}
public bool TryGetExistingRef(object obj, out int refId) => _refTracker.TryGetExistingRef(obj, out refId);
public string GetResult()
{

16
AyCode.Core/Serializers/Jsons/AcJsonSerializer.cs
View File

@ -19,7 +19,6 @@ public static partial class AcJsonSerializer
// Pre-encoded property names for $id/$ref (STJ optimization)
private static readonly JsonEncodedText IdPropertyEncoded = JsonEncodedText.Encode("$id");
private static readonly JsonEncodedText RefPropertyEncoded = JsonEncodedText.Encode("$ref");
private static readonly Type ExpressionBaseType = typeof(Expression);
/// <summary>
/// Serialize object to JSON string with default options.
@ -44,7 +43,7 @@ public static partial class AcJsonSerializer
type = typeof(AcExpressionNode);
}
// Handle Expression types - convert to AcExpressionNode
else if (IsExpressionType(type))
else if (AcSerializerCommon.IsExpressionType(type))
{
actualValue = AcExpressionConverter.ToNode((Expression)(object)value);
type = typeof(AcExpressionNode);
@ -68,15 +67,6 @@ public static partial class AcJsonSerializer
}
}
/// <summary>
/// Checks if a type is an Expression type.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool IsExpressionType(Type type)
{
return ExpressionBaseType.IsAssignableFrom(type);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static bool TrySerializePrimitiveRuntime(object value, in Type type, out string json)
{
@ -184,7 +174,7 @@ public static partial class AcJsonSerializer
if (context.UseReferenceHandling && context.TryGetExistingRef(value, out var refId))
{
writer.WriteStartObject();
writer.WriteString(RefPropertyEncoded, refId);
writer.WriteString(RefPropertyEncoded, refId.ToString(CultureInfo.InvariantCulture));
writer.WriteEndObject();
return;
}
@ -193,7 +183,7 @@ public static partial class AcJsonSerializer
if (context.UseReferenceHandling && context.ShouldWriteId(value, out var id))
{
writer.WriteString(IdPropertyEncoded, id);
writer.WriteString(IdPropertyEncoded, id.ToString(CultureInfo.InvariantCulture));
context.MarkAsWritten(value, id);
}

27
AyCode.Core/Serializers/Jsons/JsonPropertySetterBase.cs
View File

@ -1,4 +1,3 @@
using System.Linq.Expressions;
using System.Reflection;
using System.Runtime.CompilerServices;
using static AyCode.Core.Helpers.JsonUtilities;
@ -32,34 +31,24 @@ public abstract class JsonPropertySetterBase : PropertySetterBase
if (!IsNullable)
{
if (ReferenceEquals(PropertyType, IntType))
_setInt32 = CreateTypedSetter<int>(declaringType, prop);
_setInt32 = AcSerializerCommon.CreateTypedSetter<int>(declaringType, prop);
else if (ReferenceEquals(PropertyType, LongType))
_setInt64 = CreateTypedSetter<long>(declaringType, prop);
_setInt64 = AcSerializerCommon.CreateTypedSetter<long>(declaringType, prop);
else if (ReferenceEquals(PropertyType, DoubleType))
_setDouble = CreateTypedSetter<double>(declaringType, prop);
_setDouble = AcSerializerCommon.CreateTypedSetter<double>(declaringType, prop);
else if (ReferenceEquals(PropertyType, BoolType))
_setBool = CreateTypedSetter<bool>(declaringType, prop);
_setBool = AcSerializerCommon.CreateTypedSetter<bool>(declaringType, prop);
else if (ReferenceEquals(PropertyType, DecimalType))
_setDecimal = CreateTypedSetter<decimal>(declaringType, prop);
_setDecimal = AcSerializerCommon.CreateTypedSetter<decimal>(declaringType, prop);
else if (ReferenceEquals(PropertyType, FloatType))
_setSingle = CreateTypedSetter<float>(declaringType, prop);
_setSingle = AcSerializerCommon.CreateTypedSetter<float>(declaringType, prop);
else if (ReferenceEquals(PropertyType, DateTimeType))
_setDateTime = CreateTypedSetter<DateTime>(declaringType, prop);
_setDateTime = AcSerializerCommon.CreateTypedSetter<DateTime>(declaringType, prop);
else if (ReferenceEquals(PropertyType, GuidType))
_setGuid = CreateTypedSetter<Guid>(declaringType, prop);
_setGuid = AcSerializerCommon.CreateTypedSetter<Guid>(declaringType, prop);
}
}
private static Action<object, T> CreateTypedSetter<T>(Type declaringType, PropertyInfo prop)
{
var objParam = Expression.Parameter(typeof(object), "obj");
var valueParam = Expression.Parameter(typeof(T), "value");
var castObj = Expression.Convert(objParam, declaringType);
var propAccess = Expression.Property(castObj, prop);
var assign = Expression.Assign(propAccess, valueParam);
return Expression.Lambda<Action<object, T>>(assign, objParam, valueParam).Compile();
}
/// <summary>
/// Try to set a boolean value without boxing.
/// </summary>