// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
#nullable disable
 
using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.CompilerServices;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.Utilities;
 
internal class AbstractNotifyPropertyChanged : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;
    protected void NotifyPropertyChanged([CallerMemberName] string propertyName = "")
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
 
    /// <returns>True if the property was updated</returns>
    protected bool SetProperty<T>(ref T field, T value, [CallerMemberName] string propertyName = "")
    {
        if (!EqualityComparer<T>.Default.Equals(field, value))
        {
            field = value;
            NotifyPropertyChanged(propertyName);
            return true;
        }
 
        return false;
    }
}