DataObjectMethodAttribute.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.ComponentModel;
 
[AttributeUsage(AttributeTargets.Method)]
public sealed class DataObjectMethodAttribute : Attribute
{
    public bool IsDefault { get; }
 
    public DataObjectMethodType MethodType { get; }
 
    public DataObjectMethodAttribute(DataObjectMethodType methodType)
        : this(methodType, isDefault: false)
    {
    }
 
    public DataObjectMethodAttribute(DataObjectMethodType methodType, bool isDefault)
    {
        MethodType = methodType;
        IsDefault = isDefault;
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj == this)
        {
            return true;
        }
        if (obj is DataObjectMethodAttribute dataObjectMethodAttribute && dataObjectMethodAttribute.MethodType == MethodType)
        {
            return dataObjectMethodAttribute.IsDefault == IsDefault;
        }
        return false;
    }
 
    public override int GetHashCode()
    {
        return ((int)MethodType).GetHashCode() ^ IsDefault.GetHashCode();
    }
 
    public override bool Match([NotNullWhen(true)] object? obj)
    {
        if (obj == this)
        {
            return true;
        }
        if (obj is DataObjectMethodAttribute dataObjectMethodAttribute)
        {
            return dataObjectMethodAttribute.MethodType == MethodType;
        }
        return false;
    }
}