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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class SwitchExpressionSyntax : ExpressionSyntax
{
	internal readonly ExpressionSyntax governingExpression;

	internal readonly SyntaxToken switchKeyword;

	internal readonly SyntaxToken openBraceToken;

	internal readonly GreenNode? arms;

	internal readonly SyntaxToken closeBraceToken;

	public ExpressionSyntax GoverningExpression => governingExpression;

	public SyntaxToken SwitchKeyword => switchKeyword;

	public SyntaxToken OpenBraceToken => openBraceToken;

	public SeparatedSyntaxList<SwitchExpressionArmSyntax> Arms => new SeparatedSyntaxList<SwitchExpressionArmSyntax>(SyntaxList<CSharpSyntaxNode>.op_Implicit(new SyntaxList<CSharpSyntaxNode>(arms)));

	public SyntaxToken CloseBraceToken => closeBraceToken;

	internal SwitchExpressionSyntax(SyntaxKind kind, ExpressionSyntax governingExpression, SyntaxToken switchKeyword, SyntaxToken openBraceToken, GreenNode? arms, SyntaxToken closeBraceToken, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 5;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)governingExpression);
		this.governingExpression = governingExpression;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)switchKeyword);
		this.switchKeyword = switchKeyword;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)openBraceToken);
		this.openBraceToken = openBraceToken;
		if (arms != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(arms);
			this.arms = arms;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)closeBraceToken);
		this.closeBraceToken = closeBraceToken;
	}

	internal SwitchExpressionSyntax(SyntaxKind kind, ExpressionSyntax governingExpression, SyntaxToken switchKeyword, SyntaxToken openBraceToken, GreenNode? arms, SyntaxToken closeBraceToken, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 5;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)governingExpression);
		this.governingExpression = governingExpression;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)switchKeyword);
		this.switchKeyword = switchKeyword;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)openBraceToken);
		this.openBraceToken = openBraceToken;
		if (arms != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(arms);
			this.arms = arms;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)closeBraceToken);
		this.closeBraceToken = closeBraceToken;
	}

	internal SwitchExpressionSyntax(SyntaxKind kind, ExpressionSyntax governingExpression, SyntaxToken switchKeyword, SyntaxToken openBraceToken, GreenNode? arms, SyntaxToken closeBraceToken)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 5;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)governingExpression);
		this.governingExpression = governingExpression;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)switchKeyword);
		this.switchKeyword = switchKeyword;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)openBraceToken);
		this.openBraceToken = openBraceToken;
		if (arms != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(arms);
			this.arms = arms;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)closeBraceToken);
		this.closeBraceToken = closeBraceToken;
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => governingExpression, 
			1 => switchKeyword, 
			2 => openBraceToken, 
			3 => arms, 
			4 => closeBraceToken, 
			_ => null, 
		});
	}

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

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

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

	public SwitchExpressionSyntax Update(ExpressionSyntax governingExpression, SyntaxToken switchKeyword, SyntaxToken openBraceToken, SeparatedSyntaxList<SwitchExpressionArmSyntax> arms, SyntaxToken closeBraceToken)
	{
		//IL_003a: 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)
		//IL_0023: Unknown result type (might be due to invalid IL or missing references)
		if (governingExpression == GoverningExpression && switchKeyword == SwitchKeyword && openBraceToken == OpenBraceToken)
		{
			SeparatedSyntaxList<SwitchExpressionArmSyntax> val = Arms;
			if (!((ref arms) != (ref val)) && closeBraceToken == CloseBraceToken)
			{
				return this;
			}
		}
		SwitchExpressionSyntax switchExpressionSyntax = SyntaxFactory.SwitchExpression(governingExpression, switchKeyword, openBraceToken, arms, closeBraceToken);
		DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
		if (diagnostics != null && diagnostics.Length != 0)
		{
			switchExpressionSyntax = GreenNodeExtensions.WithDiagnosticsGreen<SwitchExpressionSyntax>(switchExpressionSyntax, diagnostics);
		}
		SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
		if (annotations != null && annotations.Length != 0)
		{
			switchExpressionSyntax = GreenNodeExtensions.WithAnnotationsGreen<SwitchExpressionSyntax>(switchExpressionSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
		}
		return switchExpressionSyntax;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new SwitchExpressionSyntax(base.Kind, governingExpression, switchKeyword, openBraceToken, arms, closeBraceToken, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new SwitchExpressionSyntax(base.Kind, governingExpression, switchKeyword, openBraceToken, arms, closeBraceToken, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal SwitchExpressionSyntax(ObjectReader reader)
		: base(reader)
	{
		//IL_0062: Unknown result type (might be due to invalid IL or missing references)
		//IL_0068: Expected O, but got Unknown
		((GreenNode)this).SlotCount = 5;
		ExpressionSyntax expressionSyntax = (ExpressionSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)expressionSyntax);
		governingExpression = expressionSyntax;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
		switchKeyword = syntaxToken;
		SyntaxToken syntaxToken2 = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken2);
		openBraceToken = syntaxToken2;
		GreenNode val = (GreenNode)reader.ReadValue();
		if (val != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val);
			arms = val;
		}
		SyntaxToken syntaxToken3 = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken3);
		closeBraceToken = syntaxToken3;
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)governingExpression);
		writer.WriteValue((IObjectWritable)(object)switchKeyword);
		writer.WriteValue((IObjectWritable)(object)openBraceToken);
		writer.WriteValue((IObjectWritable)(object)arms);
		writer.WriteValue((IObjectWritable)(object)closeBraceToken);
	}

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