SourceLineInfo.cs

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using System.Diagnostics;
 
namespace System.Xml.Xsl;
 
[DebuggerDisplay("{Uri} [{StartLine},{StartPos} -- {EndLine},{EndPos}]")]
internal sealed class SourceLineInfo : ISourceLineInfo
{
    private string uriString;
 
    private Location start;
 
    private Location end;
 
    private const int NoSourceMagicNumber = 16707566;
 
    public static SourceLineInfo NoSource = new SourceLineInfo(string.Empty, 16707566, 0, 16707566, 0);
 
    public string Uri => uriString;
 
    public int StartLine => start.Line;
 
    public Location End => end;
 
    public Location Start => start;
 
    public bool IsNoSource => StartLine == 16707566;
 
    public SourceLineInfo(string uriString, int startLine, int startPos, int endLine, int endPos)
        : this(uriString, new Location(startLine, startPos), new Location(endLine, endPos))
    {
    }
 
    public SourceLineInfo(string uriString, Location start, Location end)
    {
        this.uriString = uriString;
        this.start = start;
        this.end = end;
    }
 
    [Conditional("DEBUG")]
    public static void Validate(ISourceLineInfo lineInfo)
    {
        if (lineInfo.Start.Line != 0)
        {
            _ = lineInfo.Start.Line;
            _ = 16707566;
        }
    }
 
    public static string GetFileName(string uriString)
    {
        if (uriString.Length != 0 && System.Uri.TryCreate(uriString, UriKind.Absolute, out Uri result) && result.IsFile)
        {
            return result.LocalPath;
        }
        return uriString;
    }
}