// 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.
 
using Microsoft.VisualStudio.Text;
 
namespace Microsoft.CodeAnalysis.Tagging;
 
internal static class TaggerUtilities
{
    public static bool SpanEquals(SnapshotSpan? span1, SnapshotSpan? span2, SpanTrackingMode spanTrackingMode)
    {
        if (span1 is null && span2 is null)
            return true;
 
        if (span1 is null || span2 is null)
            return false;
 
        // map one span to the snapshot of the other and see if they match.
        span1 = span1.Value.TranslateTo(span2.Value.Snapshot, spanTrackingMode);
        return span1.Value.Span == span2.Value.Span;
    }
}