﻿// 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 Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using VsTextSpan = Microsoft.VisualStudio.TextManager.Interop.TextSpan;

namespace Microsoft.VisualStudio.LanguageServices.Implementation.Extensions
{
    internal static class VirtualTreePointExtensions
    {
        public static VsTextSpan ToVsTextSpan(this VirtualTreePoint virtualSnapshotPoint)
        {
            var line = virtualSnapshotPoint.GetContainingLine();
            var lineNumber = line.LineNumber;
            var columnIndex = virtualSnapshotPoint.Position - line.Start;
            columnIndex += virtualSnapshotPoint.VirtualSpaces;

            return new VsTextSpan()
            {
                iStartLine = lineNumber,
                iStartIndex = columnIndex,
                iEndLine = lineNumber,
                iEndIndex = columnIndex,
            };
        }
    }
}
