// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using Microsoft.CodeAnalysis;
 
namespace Roslyn.Utilities
{
    internal static class Hash
    {
        /// <summary>
        /// This is how VB Anonymous Types combine hash values for fields.
        /// </summary>
        internal static int Combine(int newKey, int currentKey)
        {
            return unchecked((currentKey * (int)0xA5555529) + newKey);
        }
 
        // The rest of this file was removed as they were not currently needed in the polyfill of SyntaxValueProvider.ForAttributeWithMetadataName.
        // If that changes, they should be added back as necessary.
    }
}