79 lines
3.4 KiB
C#
79 lines
3.4 KiB
C#
using System.Reflection;
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namespace Syntriax.Engine.Serialization;
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internal static class Utils
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{
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internal static bool IsEnumerable(this Type type) => typeof(System.Collections.IEnumerable).IsAssignableFrom(type) && type != typeof(string);
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internal static TypeData GetTypeData(this Type objectType)
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{
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List<FieldInfo> fieldInfos = GetFieldInfosIncludingBaseClasses(objectType, BindingFlags.Instance | BindingFlags.FlattenHierarchy | BindingFlags.NonPublic | BindingFlags.Public);
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List<PropertyInfo> propertyInfos = GetPropertyInfosIncludingBaseClasses(objectType, BindingFlags.Instance | BindingFlags.FlattenHierarchy | BindingFlags.Public)
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.Where(pi => pi.SetMethod is not null)
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.ToList();
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propertyInfos.AddRange(
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GetPropertyInfosIncludingBaseClasses(objectType, BindingFlags.Instance | BindingFlags.FlattenHierarchy | BindingFlags.NonPublic)
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.Where(pi => pi.SetMethod is not null && pi.GetCustomAttribute<SerializeAttribute>() is not null)
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);
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return new TypeData(fieldInfos, propertyInfos);
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}
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internal static List<FieldInfo> GetFieldInfosIncludingBaseClasses(Type type, BindingFlags bindingFlags)
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{
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if (type.BaseType is null)
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return [.. type.GetFields(bindingFlags)];
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Type currentType = type;
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FieldInfoComparer fieldComparer = new();
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HashSet<FieldInfo> fieldInfoList = new(type.GetFields(bindingFlags), fieldComparer);
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while (currentType.BaseType is Type baseType)
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{
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currentType = baseType;
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fieldInfoList.UnionWith(currentType!.GetFields(bindingFlags));
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}
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return [.. fieldInfoList.OrderBy(fi => fi.Name)];
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}
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internal static List<PropertyInfo> GetPropertyInfosIncludingBaseClasses(Type type, BindingFlags bindingFlags)
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{
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if (type.BaseType is null)
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return [.. type.GetProperties(bindingFlags)];
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Type currentType = type;
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PropertyInfoComparer propertyComparer = new();
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HashSet<PropertyInfo> propertyInfoList = new(type.GetProperties(bindingFlags), propertyComparer);
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while (currentType.BaseType is Type baseType)
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{
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currentType = baseType;
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propertyInfoList.UnionWith(currentType.GetProperties(bindingFlags));
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}
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return [.. propertyInfoList.OrderBy(pi => pi.Name)];
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}
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private class FieldInfoComparer : IEqualityComparer<FieldInfo>
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{
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public bool Equals(FieldInfo? x, FieldInfo? y) => x?.DeclaringType == y?.DeclaringType && x?.Name == y?.Name;
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public int GetHashCode(FieldInfo obj) => obj.Name.GetHashCode() ^ obj.DeclaringType!.GetHashCode();
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}
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private class PropertyInfoComparer : IEqualityComparer<PropertyInfo>
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{
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public bool Equals(PropertyInfo? x, PropertyInfo? y) => x?.DeclaringType == y?.DeclaringType && x?.Name == y?.Name;
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public int GetHashCode(PropertyInfo obj) => obj.Name.GetHashCode() ^ obj.DeclaringType!.GetHashCode();
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}
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}
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internal record struct TypeData(IEnumerable<FieldInfo> Fields, IEnumerable<PropertyInfo> Properties)
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{
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public static implicit operator (IEnumerable<FieldInfo> fields, IEnumerable<PropertyInfo> properties)(TypeData value) => (value.Fields, value.Properties);
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public static implicit operator TypeData((IEnumerable<FieldInfo> fields, IEnumerable<PropertyInfo> properties) value) => new(value.fields, value.properties);
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}
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