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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class ArgumentSyntax : CSharpSyntaxNode
{
	internal readonly NameColonSyntax? nameColon;

	internal readonly SyntaxToken? refKindKeyword;

	internal readonly ExpressionSyntax expression;

	public NameColonSyntax? NameColon => nameColon;

	public SyntaxToken? RefKindKeyword => refKindKeyword;

	public ExpressionSyntax Expression => expression;

	internal ArgumentSyntax(SyntaxKind kind, NameColonSyntax? nameColon, SyntaxToken? refKindKeyword, ExpressionSyntax expression, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 3;
		if (nameColon != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)nameColon);
			this.nameColon = nameColon;
		}
		if (refKindKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)refKindKeyword);
			this.refKindKeyword = refKindKeyword;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)expression);
		this.expression = expression;
	}

	internal ArgumentSyntax(SyntaxKind kind, NameColonSyntax? nameColon, SyntaxToken? refKindKeyword, ExpressionSyntax expression, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 3;
		if (nameColon != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)nameColon);
			this.nameColon = nameColon;
		}
		if (refKindKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)refKindKeyword);
			this.refKindKeyword = refKindKeyword;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)expression);
		this.expression = expression;
	}

	internal ArgumentSyntax(SyntaxKind kind, NameColonSyntax? nameColon, SyntaxToken? refKindKeyword, ExpressionSyntax expression)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 3;
		if (nameColon != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)nameColon);
			this.nameColon = nameColon;
		}
		if (refKindKeyword != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)refKindKeyword);
			this.refKindKeyword = refKindKeyword;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)expression);
		this.expression = expression;
	}

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

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

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

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

	public ArgumentSyntax Update(NameColonSyntax nameColon, SyntaxToken refKindKeyword, ExpressionSyntax expression)
	{
		if (nameColon != NameColon || refKindKeyword != RefKindKeyword || expression != Expression)
		{
			ArgumentSyntax argumentSyntax = SyntaxFactory.Argument(nameColon, refKindKeyword, expression);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				argumentSyntax = GreenNodeExtensions.WithDiagnosticsGreen<ArgumentSyntax>(argumentSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				argumentSyntax = GreenNodeExtensions.WithAnnotationsGreen<ArgumentSyntax>(argumentSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return argumentSyntax;
		}
		return this;
	}

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

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

	internal ArgumentSyntax(ObjectReader reader)
		: base(reader)
	{
		((GreenNode)this).SlotCount = 3;
		NameColonSyntax nameColonSyntax = (NameColonSyntax)reader.ReadValue();
		if (nameColonSyntax != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)nameColonSyntax);
			nameColon = nameColonSyntax;
		}
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		if (syntaxToken != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
			refKindKeyword = syntaxToken;
		}
		ExpressionSyntax expressionSyntax = (ExpressionSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)expressionSyntax);
		expression = expressionSyntax;
	}

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

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