using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.CompilerServices;

namespace System.Windows.Forms
{
    public class INotifyPropertyChangedImpl : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        internal void RaiseAndSetIfChanged<T>(ref T field, T value, [CallerMemberName] string propertyName = "")
        {
            if (!EqualityComparer<T>.Default.Equals(field, value))
            {
                field = value;
                RaisePropertyChanged(propertyName);
            }
        }

        internal void RaisePropertyChanged([CallerMemberName] string propertyName = "") =>
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}