using System;
using System.Collections.Generic;
using Microsoft.CodeAnalysis.Syntax.InternalSyntax;
using Roslyn.Utilities;

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class XmlElementSyntax : XmlNodeSyntax
{
	internal readonly XmlElementStartTagSyntax startTag;

	internal readonly GreenNode? content;

	internal readonly XmlElementEndTagSyntax endTag;

	public XmlElementStartTagSyntax StartTag => startTag;

	public SyntaxList<XmlNodeSyntax> Content => new SyntaxList<XmlNodeSyntax>(content);

	public XmlElementEndTagSyntax EndTag => endTag;

	internal XmlElementSyntax(SyntaxKind kind, XmlElementStartTagSyntax startTag, GreenNode? content, XmlElementEndTagSyntax endTag, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 3;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)startTag);
		this.startTag = startTag;
		if (content != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(content);
			this.content = content;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)endTag);
		this.endTag = endTag;
	}

	internal XmlElementSyntax(SyntaxKind kind, XmlElementStartTagSyntax startTag, GreenNode? content, XmlElementEndTagSyntax endTag, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 3;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)startTag);
		this.startTag = startTag;
		if (content != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(content);
			this.content = content;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)endTag);
		this.endTag = endTag;
	}

	internal XmlElementSyntax(SyntaxKind kind, XmlElementStartTagSyntax startTag, GreenNode? content, XmlElementEndTagSyntax endTag)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 3;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)startTag);
		this.startTag = startTag;
		if (content != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(content);
			this.content = content;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)endTag);
		this.endTag = endTag;
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => startTag, 
			1 => content, 
			2 => endTag, 
			_ => null, 
		});
	}

	internal override SyntaxNode CreateRed(SyntaxNode? parent, int position)
	{
		return (SyntaxNode)(object)new Microsoft.CodeAnalysis.CSharp.Syntax.XmlElementSyntax(this, parent, position);
	}

	public override void Accept(CSharpSyntaxVisitor visitor)
	{
		visitor.VisitXmlElement(this);
	}

	public override TResult Accept<TResult>(CSharpSyntaxVisitor<TResult> visitor)
	{
		return visitor.VisitXmlElement(this);
	}

	public XmlElementSyntax Update(XmlElementStartTagSyntax startTag, SyntaxList<XmlNodeSyntax> content, XmlElementEndTagSyntax endTag)
	{
		//IL_0021: Unknown result type (might be due to invalid IL or missing references)
		//IL_0009: Unknown result type (might be due to invalid IL or missing references)
		//IL_000b: Unknown result type (might be due to invalid IL or missing references)
		if (startTag != StartTag || content != Content || endTag != EndTag)
		{
			XmlElementSyntax xmlElementSyntax = SyntaxFactory.XmlElement(startTag, content, endTag);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				xmlElementSyntax = GreenNodeExtensions.WithDiagnosticsGreen<XmlElementSyntax>(xmlElementSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				xmlElementSyntax = GreenNodeExtensions.WithAnnotationsGreen<XmlElementSyntax>(xmlElementSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return xmlElementSyntax;
		}
		return this;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new XmlElementSyntax(base.Kind, startTag, content, endTag, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new XmlElementSyntax(base.Kind, startTag, content, endTag, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal XmlElementSyntax(ObjectReader reader)
		: base(reader)
	{
		//IL_002e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0034: Expected O, but got Unknown
		((GreenNode)this).SlotCount = 3;
		XmlElementStartTagSyntax xmlElementStartTagSyntax = (XmlElementStartTagSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)xmlElementStartTagSyntax);
		startTag = xmlElementStartTagSyntax;
		GreenNode val = (GreenNode)reader.ReadValue();
		if (val != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val);
			content = val;
		}
		XmlElementEndTagSyntax xmlElementEndTagSyntax = (XmlElementEndTagSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)xmlElementEndTagSyntax);
		endTag = xmlElementEndTagSyntax;
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)startTag);
		writer.WriteValue((IObjectWritable)(object)content);
		writer.WriteValue((IObjectWritable)(object)endTag);
	}

	static XmlElementSyntax()
	{
		ObjectBinder.RegisterTypeReader(typeof(XmlElementSyntax), (Func<ObjectReader, IObjectWritable>)((ObjectReader r) => (IObjectWritable)(object)new XmlElementSyntax(r)));
	}
}