Add a reference to MessagePack implementation (#14)

* Add MsgPackSerializer sample

It's very rough and limited. And it assumes #12 is addressed.

* Add msgpack benchmarks

* Perf improvements

* More perf improvements

* Use list instead of dictionary for writing properties

* Remove unnecessary code

* Fix thread-safety

* Generate `IMessagePackFormatter<T>` implementations

* Remove extra level of indirection

* Fix failing unit tests

* Handle more primitive types and defer missing construction complaint till deserialization

* Fix DelayedFormatter pattern

* Store primitive formatters in a static dictionary

* Add support for enums

* Got non-default constructors working

* Remove workaround that is no longer required

* Serialize enum as underlying type rather than string

* Add msgpack Theory

* Replace msgpack sample with a reference

---------

Co-authored-by: Eirik Tsarpalis <[email protected]>

.gitignore

@@ -9,6 +9,7 @@
 *.user
 *.userosscache
 *.sln.docstates
+*.lutconfig
 
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs
@@ -376,4 +377,4 @@ artifacts/
 
 # docfx files
 _site
-docs/api
+docs/api

README.md

@@ -98,6 +98,12 @@ Here's a [benchmark](https://github.com/eiriktsarpalis/typeshape-csharp/blob/mai
 
 Even though both serializers target the same underlying reader and writer types, the TypeShape implementation is ~75% faster for serialization and ~100% faster for deserialization, when compared with System.Text.Json's metadata serializer. As expected, fast-path serialization is still fastest since its implementation is fully inlined.
 
+## Known libraries based on TypeShape
+
+The following codebases are based upon TypeShape and may be worth checking out.
+
+- [Nerdbank.MessagePack](https://github.com/AArnott/Nerdbank.MessagePack) - a MessagePack library with performance to rival MessagePack-CSharp, and greater simplicity and additional features.
+
 ## Project structure
 
 The repo consists of the following projects:

src/TypeShape.Examples/Utilities/SpanDictionary.cs

@@ -21,7 +21,7 @@ public SpanDictionary(IEnumerable<KeyValuePair<TKey[], TValue>> input, ISpanEqua
         var source = input.ToArray();
         int size = source.Length;
         _comparer = comparer;
-        
+
         _buckets = new int[Math.Max(size, 1)];
         _entries = new Entry[size];
 
@@ -138,4 +138,8 @@ public static class SpanDictionary
     /// <summary>Maps the specified enumerable using a dictionary using the provided transformers.</summary>
     public static SpanDictionary<TKey, TSource> ToSpanDictionary<TSource, TKey>(this IEnumerable<TSource> source, Func<TSource, TKey[]> keySelector, ISpanEqualityComparer<TKey> keyComparer)
         => new(source.Select(t => new KeyValuePair<TKey[], TSource>(keySelector(t), t)), keyComparer);
+
+    /// <summary>Maps the specified enumerable using a dictionary using the provided transformers.</summary>
+    public static SpanDictionary<TKey, TValue> ToSpanDictionary<TSource, TKey, TValue>(this IEnumerable<TSource> source, Func<TSource, TKey[]> keySelector, Func<TSource, TValue> valueSelector, ISpanEqualityComparer<TKey> keyComparer)
+        => new(source.Select(t => new KeyValuePair<TKey[], TValue>(keySelector(t), valueSelector(t))), keyComparer);
 }

tests/TypeShape.Benchmarks/TypeShape.Benchmarks.csproj

@@ -4,11 +4,11 @@
     <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
-	  <Nullable>enable</Nullable>
-	  <WarningsAsErrors>Nullable</WarningsAsErrors>
-	  <TreatWarningsAsErrors>True</TreatWarningsAsErrors>
-	  <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
-	  <ServerGarbageCollection>true</ServerGarbageCollection>
+    <Nullable>enable</Nullable>
+    <WarningsAsErrors>Nullable</WarningsAsErrors>
+    <TreatWarningsAsErrors>True</TreatWarningsAsErrors>
+    <EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
+    <ServerGarbageCollection>true</ServerGarbageCollection>
   </PropertyGroup>
 
   <ItemGroup>
@@ -17,7 +17,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\TypeShape\TypeShape.csproj" />
-	  <ProjectReference Include="..\..\src\TypeShape.SourceGenerator\TypeShape.SourceGenerator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
+    <ProjectReference Include="..\..\src\TypeShape.SourceGenerator\TypeShape.SourceGenerator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
     <ProjectReference Include="..\..\src\TypeShape.Examples\TypeShape.Examples.csproj" />
   </ItemGroup>
 

tests/TypeShape.Tests/TestTypes.cs

@@ -526,7 +526,7 @@ public partial class DerivedDictionary : Dictionary<string, string>;
     public void Clear() => _dictionary.Clear();
     public bool Contains(KeyValuePair<TKey, TValue> item) => _dictionary.Contains(item);
     public bool ContainsKey(TKey key) => _dictionary.ContainsKey(key);
-    public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex) => ((IDictionary<TKey,TValue>)_dictionary).CopyTo(array, arrayIndex);
+    public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex) => ((IDictionary<TKey, TValue>)_dictionary).CopyTo(array, arrayIndex);
     public bool Remove(TKey key) => _dictionary.Remove(key);
     public bool Remove(KeyValuePair<TKey, TValue> item) => ((IDictionary<TKey, TValue>)_dictionary).Remove(item);
     public bool TryGetValue(TKey key, [MaybeNullWhen(false)] out TValue value) => _dictionary.TryGetValue(key, out value);
@@ -592,15 +592,27 @@ public StructWithDefaultCtor()
 }
 
 [GenerateShape]
-public partial class BaseClass
+public partial class BaseClass : IEquatable<BaseClass>
 {
     public int X { get; set; }
+
+    public bool Equals(BaseClass? other) => other is not null && X == other.X;
+
+    public override bool Equals(object? obj) => obj is BaseClass other && Equals(other);
+
+    public override int GetHashCode() => X;
 }
 
 [GenerateShape]
-public partial class DerivedClass : BaseClass
+public partial class DerivedClass : BaseClass, IEquatable<DerivedClass>
 {
     public int Y { get; set; }
+
+    public bool Equals(DerivedClass? other) => base.Equals(other) && Y == other.Y;
+
+    public override bool Equals(object? obj) => obj is DerivedClass other && Equals(other);
+
+    public override int GetHashCode() => HashCode.Combine(base.GetHashCode(), Y);
 }
 
 [GenerateShape]