// 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;
using Microsoft.CodeAnalysis;
using Roslyn.Utilities;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.CodeModel;
 
internal sealed class CodeModelEvent : IEquatable<CodeModelEvent>
{
    public readonly SyntaxNode Node;
    public readonly SyntaxNode ParentNode;
    public CodeModelEventType Type;
 
    public CodeModelEvent(SyntaxNode node, SyntaxNode parentNode, CodeModelEventType type)
    {
        this.Node = node;
        this.ParentNode = parentNode;
        this.Type = type;
    }
 
    public override int GetHashCode()
        => Hash.Combine(Node, Hash.Combine(ParentNode, ((int)Type).GetHashCode()));
 
    public override bool Equals(object obj)
        => Equals(obj as CodeModelEvent);
 
    public bool Equals(CodeModelEvent other)
    {
        if (other == null)
        {
            return false;
        }
 
        return Node == other.Node
            && ParentNode == other.ParentNode
            && Type == other.Type;
    }
}