using Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

namespace Microsoft.CodeAnalysis.CSharp.Syntax;

public sealed class WhenClauseSyntax : CSharpSyntaxNode
{
	private ExpressionSyntax? condition;

	public SyntaxToken WhenKeyword => new SyntaxToken((SyntaxNode)(object)this, (GreenNode)(object)((Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.WhenClauseSyntax)(object)((SyntaxNode)this).Green).whenKeyword, ((SyntaxNode)this).Position, 0);

	public ExpressionSyntax Condition => ((SyntaxNode)this).GetRed<ExpressionSyntax>(ref condition, 1);

	internal WhenClauseSyntax(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?)(object)((SyntaxNode)this).GetRed<ExpressionSyntax>(ref condition, 1);
	}

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

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

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

	public WhenClauseSyntax Update(SyntaxToken whenKeyword, ExpressionSyntax condition)
	{
		//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_0017: Unknown result type (might be due to invalid IL or missing references)
		if (whenKeyword != WhenKeyword || condition != Condition)
		{
			WhenClauseSyntax whenClauseSyntax = SyntaxFactory.WhenClause(whenKeyword, condition);
			SyntaxAnnotation[] annotations = ((SyntaxNode)this).GetAnnotations();
			if (annotations == null || annotations.Length == 0)
			{
				return whenClauseSyntax;
			}
			return whenClauseSyntax.WithAnnotations(annotations);
		}
		return this;
	}

	public WhenClauseSyntax WithWhenKeyword(SyntaxToken whenKeyword)
	{
		//IL_0001: Unknown result type (might be due to invalid IL or missing references)
		return Update(whenKeyword, Condition);
	}

	public WhenClauseSyntax WithCondition(ExpressionSyntax condition)
	{
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		return Update(WhenKeyword, condition);
	}
}