SequencePoint.cs

Go to the documentation of this file.

using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Reflection.Internal;
 
namespace System.Reflection.Metadata;
 
[DebuggerDisplay("{GetDebuggerDisplay(),nq}")]
public readonly struct SequencePoint : IEquatable<SequencePoint>
{
    public const int HiddenLine = 16707566;
 
    public DocumentHandle Document { get; }
 
    public int Offset { get; }
 
    public int StartLine { get; }
 
    public int EndLine { get; }
 
    public int StartColumn { get; }
 
    public int EndColumn { get; }
 
    public bool IsHidden => StartLine == 16707566;
 
    internal SequencePoint(DocumentHandle document, int offset)
    {
        Document = document;
        Offset = offset;
        StartLine = 16707566;
        StartColumn = 0;
        EndLine = 16707566;
        EndColumn = 0;
    }
 
    internal SequencePoint(DocumentHandle document, int offset, int startLine, ushort startColumn, int endLine, ushort endColumn)
    {
        Document = document;
        Offset = offset;
        StartLine = startLine;
        StartColumn = startColumn;
        EndLine = endLine;
        EndColumn = endColumn;
    }
 
    public override int GetHashCode()
    {
        return Hash.Combine(Document.RowId, Hash.Combine(Offset, Hash.Combine(StartLine, Hash.Combine(StartColumn, Hash.Combine(EndLine, EndColumn)))));
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj is SequencePoint other)
        {
            return Equals(other);
        }
        return false;
    }
 
    public bool Equals(SequencePoint other)
    {
        if (Document == other.Document && Offset == other.Offset && StartLine == other.StartLine && StartColumn == other.StartColumn && EndLine == other.EndLine)
        {
            return EndColumn == other.EndColumn;
        }
        return false;
    }
 
    private string GetDebuggerDisplay()
    {
        if (!IsHidden)
        {
            return $"{Offset}: ({StartLine}, {StartColumn}) - ({EndLine}, {EndColumn})";
        }
        return "<hidden>";
    }
}