// 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.
 
namespace Microsoft.CodeAnalysis.Formatting;
 
internal readonly struct LineColumn(int line, int column, bool whitespaceOnly)
{
    public static LineColumn Default = new(line: 0, column: 0, whitespaceOnly: true);
 
    /// <summary>
    /// absolute line number from first token
    /// </summary>
    public readonly int Line = line;
 
    /// <summary>
    /// absolute column from beginning of a line
    /// </summary>
    public readonly int Column = column;
 
    /// <summary>
    /// there is only whitespace on this line
    /// </summary>
    public readonly bool WhitespaceOnly = whitespaceOnly;
 
    public LineColumn With(LineColumnDelta delta)
    {
        if (delta.Lines <= 0)
        {
            return new LineColumn(
                Line,
                Column + delta.Spaces,
                WhitespaceOnly && delta.WhitespaceOnly);
        }
 
        return new LineColumn(
            Line + delta.Lines,
            delta.Spaces,
            delta.WhitespaceOnly);
    }
}