// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Collections.Generic;
using Microsoft.AspNetCore.Razor.Language;
 
namespace Microsoft.CodeAnalysis.Razor.Workspaces;
 
internal sealed class ShortNameToFullyQualifiedComparer : IEqualityComparer<TagHelperDescriptor>
{
    public static readonly ShortNameToFullyQualifiedComparer Instance = new();
 
    private ShortNameToFullyQualifiedComparer()
    {
    }
 
    public bool Equals(TagHelperDescriptor? x, TagHelperDescriptor? y)
    {
        if (ReferenceEquals(x, y))
        {
            return true;
        }
 
        return x is not null &&
               y is not null &&
               x.Name == y.Name &&
               x.AssemblyName == y.AssemblyName;
    }
 
    public int GetHashCode(TagHelperDescriptor obj)
        => obj.Name.GetHashCode();
}