using System.Collections.Generic;
using Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

namespace Microsoft.CodeAnalysis.CSharp.Syntax;

public sealed class PositionalPatternClauseSyntax : CSharpSyntaxNode
{
	private SyntaxNode? subpatterns;

	public SyntaxToken OpenParenToken => new SyntaxToken((SyntaxNode)(object)this, (GreenNode)(object)((Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.PositionalPatternClauseSyntax)(object)((SyntaxNode)this).Green).openParenToken, ((SyntaxNode)this).Position, 0);

	public SeparatedSyntaxList<SubpatternSyntax> Subpatterns
	{
		get
		{
			//IL_0023: Unknown result type (might be due to invalid IL or missing references)
			//IL_0013: Unknown result type (might be due to invalid IL or missing references)
			//IL_0019: Unknown result type (might be due to invalid IL or missing references)
			SyntaxNode red = ((SyntaxNode)this).GetRed(ref subpatterns, 1);
			if (red == null)
			{
				return default(SeparatedSyntaxList<SubpatternSyntax>);
			}
			return new SeparatedSyntaxList<SubpatternSyntax>(red, ((SyntaxNode)this).GetChildIndex(1));
		}
	}

	public SyntaxToken CloseParenToken => new SyntaxToken((SyntaxNode)(object)this, (GreenNode)(object)((Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.PositionalPatternClauseSyntax)(object)((SyntaxNode)this).Green).closeParenToken, ((SyntaxNode)this).GetChildPosition(2), ((SyntaxNode)this).GetChildIndex(2));

	internal PositionalPatternClauseSyntax(Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.CSharpSyntaxNode green, SyntaxNode? parent, int position)
		: base((GreenNode)(object)green, parent, position)
	{
	}

	internal override SyntaxNode? GetNodeSlot(int index)
	{
		if (index != 1)
		{
			return null;
		}
		return ((SyntaxNode)this).GetRed(ref subpatterns, 1);
	}

	internal override SyntaxNode? GetCachedSlot(int index)
	{
		if (index != 1)
		{
			return null;
		}
		return subpatterns;
	}

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

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

	public PositionalPatternClauseSyntax Update(SyntaxToken openParenToken, SeparatedSyntaxList<SubpatternSyntax> subpatterns, SyntaxToken closeParenToken)
	{
		//IL_0000: Unknown result type (might be due to invalid IL or missing references)
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_002a: Unknown result type (might be due to invalid IL or missing references)
		//IL_002b: Unknown result type (might be due to invalid IL or missing references)
		//IL_002c: Unknown result type (might be due to invalid IL or missing references)
		//IL_000e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0010: Unknown result type (might be due to invalid IL or missing references)
		//IL_001c: Unknown result type (might be due to invalid IL or missing references)
		//IL_001e: Unknown result type (might be due to invalid IL or missing references)
		if (openParenToken != OpenParenToken || subpatterns != Subpatterns || closeParenToken != CloseParenToken)
		{
			PositionalPatternClauseSyntax positionalPatternClauseSyntax = SyntaxFactory.PositionalPatternClause(openParenToken, subpatterns, closeParenToken);
			SyntaxAnnotation[] annotations = ((SyntaxNode)this).GetAnnotations();
			if (annotations == null || annotations.Length == 0)
			{
				return positionalPatternClauseSyntax;
			}
			return positionalPatternClauseSyntax.WithAnnotations(annotations);
		}
		return this;
	}

	public PositionalPatternClauseSyntax WithOpenParenToken(SyntaxToken openParenToken)
	{
		//IL_0001: Unknown result type (might be due to invalid IL or missing references)
		//IL_0003: 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)
		return Update(openParenToken, Subpatterns, CloseParenToken);
	}

	public PositionalPatternClauseSyntax WithSubpatterns(SeparatedSyntaxList<SubpatternSyntax> subpatterns)
	{
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_0007: 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)
		return Update(OpenParenToken, subpatterns, CloseParenToken);
	}

	public PositionalPatternClauseSyntax WithCloseParenToken(SyntaxToken closeParenToken)
	{
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_0008: Unknown result type (might be due to invalid IL or missing references)
		//IL_000d: Unknown result type (might be due to invalid IL or missing references)
		return Update(OpenParenToken, Subpatterns, closeParenToken);
	}

	public PositionalPatternClauseSyntax AddSubpatterns(params SubpatternSyntax[] items)
	{
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_0007: 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)
		return WithSubpatterns(Subpatterns.AddRange((IEnumerable<SubpatternSyntax>)items));
	}
}