using System;
using System.Collections.Generic;
using Roslyn.Utilities;

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class CrefParameterSyntax : CSharpSyntaxNode
{
	internal readonly SyntaxToken? refKindKeyword;

	internal readonly SyntaxToken? readOnlyKeyword;

	internal readonly TypeSyntax type;

	public SyntaxToken? RefKindKeyword => refKindKeyword;

	public SyntaxToken? ReadOnlyKeyword => readOnlyKeyword;

	public TypeSyntax Type => type;

	internal CrefParameterSyntax(SyntaxKind kind, SyntaxToken? refKindKeyword, SyntaxToken? readOnlyKeyword, TypeSyntax type, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 3;
		if (refKindKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)refKindKeyword);
			this.refKindKeyword = refKindKeyword;
		}
		if (readOnlyKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)readOnlyKeyword);
			this.readOnlyKeyword = readOnlyKeyword;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)type);
		this.type = type;
	}

	internal CrefParameterSyntax(SyntaxKind kind, SyntaxToken? refKindKeyword, SyntaxToken? readOnlyKeyword, TypeSyntax type, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 3;
		if (refKindKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)refKindKeyword);
			this.refKindKeyword = refKindKeyword;
		}
		if (readOnlyKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)readOnlyKeyword);
			this.readOnlyKeyword = readOnlyKeyword;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)type);
		this.type = type;
	}

	internal CrefParameterSyntax(SyntaxKind kind, SyntaxToken? refKindKeyword, SyntaxToken? readOnlyKeyword, TypeSyntax type)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 3;
		if (refKindKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)refKindKeyword);
			this.refKindKeyword = refKindKeyword;
		}
		if (readOnlyKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)readOnlyKeyword);
			this.readOnlyKeyword = readOnlyKeyword;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)type);
		this.type = type;
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => refKindKeyword, 
			1 => readOnlyKeyword, 
			2 => type, 
			_ => null, 
		});
	}

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

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

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

	public CrefParameterSyntax Update(SyntaxToken refKindKeyword, SyntaxToken readOnlyKeyword, TypeSyntax type)
	{
		if (refKindKeyword != RefKindKeyword || readOnlyKeyword != ReadOnlyKeyword || type != Type)
		{
			CrefParameterSyntax crefParameterSyntax = SyntaxFactory.CrefParameter(refKindKeyword, readOnlyKeyword, type);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				crefParameterSyntax = GreenNodeExtensions.WithDiagnosticsGreen<CrefParameterSyntax>(crefParameterSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				crefParameterSyntax = GreenNodeExtensions.WithAnnotationsGreen<CrefParameterSyntax>(crefParameterSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return crefParameterSyntax;
		}
		return this;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new CrefParameterSyntax(base.Kind, refKindKeyword, readOnlyKeyword, type, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new CrefParameterSyntax(base.Kind, refKindKeyword, readOnlyKeyword, type, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal CrefParameterSyntax(ObjectReader reader)
		: base(reader)
	{
		((GreenNode)this).SlotCount = 3;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		if (syntaxToken != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
			refKindKeyword = syntaxToken;
		}
		SyntaxToken syntaxToken2 = (SyntaxToken)reader.ReadValue();
		if (syntaxToken2 != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken2);
			readOnlyKeyword = syntaxToken2;
		}
		TypeSyntax typeSyntax = (TypeSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)typeSyntax);
		type = typeSyntax;
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)refKindKeyword);
		writer.WriteValue((IObjectWritable)(object)readOnlyKeyword);
		writer.WriteValue((IObjectWritable)(object)type);
	}

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