MemberInfo.cs

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using System.Collections.Generic;
using System.Runtime.CompilerServices;
 
namespace System.Reflection;
 
public abstract class MemberInfo : ICustomAttributeProvider
{
    public abstract MemberTypes MemberType { get; }
 
    public abstract string Name { get; }
 
    public abstract Type? DeclaringType { get; }
 
    public abstract Type? ReflectedType { get; }
 
    public virtual Module Module
    {
        get
        {
            if (this is Type type)
            {
                return type.Module;
            }
            throw NotImplemented.ByDesign;
        }
    }
 
    public virtual IEnumerable<CustomAttributeData> CustomAttributes => GetCustomAttributesData();
 
    public virtual bool IsCollectible => true;
 
    public virtual int MetadataToken
    {
        get
        {
            throw new InvalidOperationException();
        }
    }
 
    internal virtual bool CacheEquals(object o)
    {
        throw new NotImplementedException();
    }
 
    internal bool HasSameMetadataDefinitionAsCore<TOther>(MemberInfo other) where TOther : MemberInfo
    {
        if ((object)other == null)
        {
            throw new ArgumentNullException("other");
        }
        if (!(other is TOther))
        {
            return false;
        }
        if (MetadataToken != other.MetadataToken)
        {
            return false;
        }
        if (!Module.Equals(other.Module))
        {
            return false;
        }
        return true;
    }
 
    public virtual bool HasSameMetadataDefinitionAs(MemberInfo other)
    {
        throw NotImplemented.ByDesign;
    }
 
    public abstract bool IsDefined(Type attributeType, bool inherit);
 
    public abstract object[] GetCustomAttributes(bool inherit);
 
    public abstract object[] GetCustomAttributes(Type attributeType, bool inherit);
 
    public virtual IList<CustomAttributeData> GetCustomAttributesData()
    {
        throw NotImplemented.ByDesign;
    }
 
    public override bool Equals(object? obj)
    {
        return base.Equals(obj);
    }
 
    public override int GetHashCode()
    {
        return base.GetHashCode();
    }
 
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static bool operator ==(MemberInfo? left, MemberInfo? right)
    {
        if ((object)right == null)
        {
            if ((object)left != null)
            {
                return false;
            }
            return true;
        }
        if ((object)left == right)
        {
            return true;
        }
        return left?.Equals(right) ?? false;
    }
 
    public static bool operator !=(MemberInfo? left, MemberInfo? right)
    {
        return !(left == right);
    }
}