XComment.cs

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using System.Threading;
using System.Threading.Tasks;
 
namespace System.Xml.Linq;
 
public class XComment : XNode
{
    internal string value;
 
    public override XmlNodeType NodeType => XmlNodeType.Comment;
 
    public string Value
    {
        get
        {
            return value;
        }
        set
        {
            if (value == null)
            {
                throw new ArgumentNullException("value");
            }
            bool flag = NotifyChanging(this, XObjectChangeEventArgs.Value);
            this.value = value;
            if (flag)
            {
                NotifyChanged(this, XObjectChangeEventArgs.Value);
            }
        }
    }
 
    public XComment(string value)
    {
        if (value == null)
        {
            throw new ArgumentNullException("value");
        }
        this.value = value;
    }
 
    public XComment(XComment other)
    {
        if (other == null)
        {
            throw new ArgumentNullException("other");
        }
        value = other.value;
    }
 
    internal XComment(XmlReader r)
    {
        value = r.Value;
        r.Read();
    }
 
    public override void WriteTo(XmlWriter writer)
    {
        if (writer == null)
        {
            throw new ArgumentNullException("writer");
        }
        writer.WriteComment(value);
    }
 
    public override Task WriteToAsync(XmlWriter writer, CancellationToken cancellationToken)
    {
        if (writer == null)
        {
            throw new ArgumentNullException("writer");
        }
        if (cancellationToken.IsCancellationRequested)
        {
            return Task.FromCanceled(cancellationToken);
        }
        return writer.WriteCommentAsync(value);
    }
 
    internal override XNode CloneNode()
    {
        return new XComment(this);
    }
 
    internal override bool DeepEquals(XNode node)
    {
        if (node is XComment xComment)
        {
            return value == xComment.value;
        }
        return false;
    }
 
    internal override int GetDeepHashCode()
    {
        return value.GetHashCode();
    }
}