refactor: moved serialization into core project

Engine.Core/Serialization/Utils.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+
+namespace Syntriax.Engine.Core.Serialization;
+
+internal static class Utils
+{
+    internal static bool HasAttribute<T>(this MemberInfo memberInfo) where T : Attribute => memberInfo.GetCustomAttribute<T>() is not null;
+    internal static bool IsEnumerable(this Type type) => typeof(System.Collections.IEnumerable).IsAssignableFrom(type) && type != typeof(string);
+
+    internal static TypeData GetTypeData(this Type objectType)
+    {
+        List<EventInfo> eventInfos = objectType.GetEvents(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public)
+            .OrderBy(ei => ei.Name)
+            .ToList();
+
+        List<FieldInfo> fieldInfos = GetFieldInfosIncludingBaseClasses(objectType, BindingFlags.Instance | BindingFlags.FlattenHierarchy | BindingFlags.NonPublic | BindingFlags.Public)
+                .Where(pi => !eventInfos.Any(ei => pi.Name.CompareTo(ei.Name) == 0)).ToList();
+
+        List<PropertyInfo> propertyInfos = GetPropertyInfosIncludingBaseClasses(objectType, BindingFlags.Instance | BindingFlags.FlattenHierarchy | BindingFlags.Public)
+            .Where(pi => pi.SetMethod is not null && !eventInfos.Any(ei => pi.Name.CompareTo(ei.Name) == 0))
+            .ToList();
+
+        return new TypeData(fieldInfos, propertyInfos);
+    }
+
+    internal static List<FieldInfo> GetFieldInfosIncludingBaseClasses(Type type, BindingFlags bindingFlags)
+    {
+        if (type.BaseType is null)
+            return [.. type.GetFields(bindingFlags)];
+
+        Type currentType = type;
+        FieldInfoComparer fieldComparer = new();
+        HashSet<FieldInfo> fieldInfoList = new(type.GetFields(bindingFlags), fieldComparer);
+
+        while (currentType.BaseType is Type baseType)
+        {
+            currentType = baseType;
+            fieldInfoList.UnionWith(currentType!.GetFields(bindingFlags));
+        }
+
+        return [.. fieldInfoList.OrderBy(fi => fi.Name)];
+    }
+
+    internal static List<PropertyInfo> GetPropertyInfosIncludingBaseClasses(Type type, BindingFlags bindingFlags)
+    {
+        if (type.BaseType is null)
+            return [.. type.GetProperties(bindingFlags)];
+
+        Type currentType = type;
+        PropertyInfoComparer propertyComparer = new();
+        HashSet<PropertyInfo> propertyInfoList = new(type.GetProperties(bindingFlags), propertyComparer);
+
+        while (currentType.BaseType is Type baseType)
+        {
+            currentType = baseType;
+            propertyInfoList.UnionWith(currentType.GetProperties(bindingFlags));
+        }
+
+        return [.. propertyInfoList.OrderBy(pi => pi.Name)];
+    }
+
+    private class FieldInfoComparer : IEqualityComparer<FieldInfo>
+    {
+        public bool Equals(FieldInfo? x, FieldInfo? y) => x?.DeclaringType == y?.DeclaringType && x?.Name == y?.Name;
+        public int GetHashCode(FieldInfo obj) => obj.Name.GetHashCode() ^ obj.DeclaringType!.GetHashCode();
+    }
+
+    private class PropertyInfoComparer : IEqualityComparer<PropertyInfo>
+    {
+        public bool Equals(PropertyInfo? x, PropertyInfo? y) => x?.DeclaringType == y?.DeclaringType && x?.Name == y?.Name;
+        public int GetHashCode(PropertyInfo obj) => obj.Name.GetHashCode() ^ obj.DeclaringType!.GetHashCode();
+    }
+}
+
+internal record struct TypeData(IEnumerable<FieldInfo> Fields, IEnumerable<PropertyInfo> Properties)
+{
+    public static implicit operator (IEnumerable<FieldInfo> fields, IEnumerable<PropertyInfo> properties)(TypeData value) => (value.Fields, value.Properties);
+    public static implicit operator TypeData((IEnumerable<FieldInfo> fields, IEnumerable<PropertyInfo> properties) value) => new(value.fields, value.properties);
+}