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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class FunctionPointerParameterListSyntax : CSharpSyntaxNode
{
	internal readonly SyntaxToken lessThanToken;

	internal readonly GreenNode? parameters;

	internal readonly SyntaxToken greaterThanToken;

	public SyntaxToken LessThanToken => lessThanToken;

	public SeparatedSyntaxList<FunctionPointerParameterSyntax> Parameters => new SeparatedSyntaxList<FunctionPointerParameterSyntax>(SyntaxList<CSharpSyntaxNode>.op_Implicit(new SyntaxList<CSharpSyntaxNode>(parameters)));

	public SyntaxToken GreaterThanToken => greaterThanToken;

	internal FunctionPointerParameterListSyntax(SyntaxKind kind, SyntaxToken lessThanToken, GreenNode? parameters, SyntaxToken greaterThanToken, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 3;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)lessThanToken);
		this.lessThanToken = lessThanToken;
		if (parameters != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(parameters);
			this.parameters = parameters;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)greaterThanToken);
		this.greaterThanToken = greaterThanToken;
	}

	internal FunctionPointerParameterListSyntax(SyntaxKind kind, SyntaxToken lessThanToken, GreenNode? parameters, SyntaxToken greaterThanToken, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 3;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)lessThanToken);
		this.lessThanToken = lessThanToken;
		if (parameters != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(parameters);
			this.parameters = parameters;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)greaterThanToken);
		this.greaterThanToken = greaterThanToken;
	}

	internal FunctionPointerParameterListSyntax(SyntaxKind kind, SyntaxToken lessThanToken, GreenNode? parameters, SyntaxToken greaterThanToken)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 3;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)lessThanToken);
		this.lessThanToken = lessThanToken;
		if (parameters != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(parameters);
			this.parameters = parameters;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)greaterThanToken);
		this.greaterThanToken = greaterThanToken;
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => lessThanToken, 
			1 => parameters, 
			2 => greaterThanToken, 
			_ => null, 
		});
	}

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

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

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

	public FunctionPointerParameterListSyntax Update(SyntaxToken lessThanToken, SeparatedSyntaxList<FunctionPointerParameterSyntax> parameters, SyntaxToken greaterThanToken)
	{
		//IL_0025: Unknown result type (might be due to invalid IL or missing references)
		//IL_000c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0011: Unknown result type (might be due to invalid IL or missing references)
		if (lessThanToken == LessThanToken)
		{
			SeparatedSyntaxList<FunctionPointerParameterSyntax> val = Parameters;
			if (!((ref parameters) != (ref val)) && greaterThanToken == GreaterThanToken)
			{
				return this;
			}
		}
		FunctionPointerParameterListSyntax functionPointerParameterListSyntax = SyntaxFactory.FunctionPointerParameterList(lessThanToken, parameters, greaterThanToken);
		DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
		if (diagnostics != null && diagnostics.Length != 0)
		{
			functionPointerParameterListSyntax = GreenNodeExtensions.WithDiagnosticsGreen<FunctionPointerParameterListSyntax>(functionPointerParameterListSyntax, diagnostics);
		}
		SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
		if (annotations != null && annotations.Length != 0)
		{
			functionPointerParameterListSyntax = GreenNodeExtensions.WithAnnotationsGreen<FunctionPointerParameterListSyntax>(functionPointerParameterListSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
		}
		return functionPointerParameterListSyntax;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new FunctionPointerParameterListSyntax(base.Kind, lessThanToken, parameters, greaterThanToken, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new FunctionPointerParameterListSyntax(base.Kind, lessThanToken, parameters, greaterThanToken, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal FunctionPointerParameterListSyntax(ObjectReader reader)
		: base(reader)
	{
		//IL_002e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0034: Expected O, but got Unknown
		((GreenNode)this).SlotCount = 3;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
		lessThanToken = syntaxToken;
		GreenNode val = (GreenNode)reader.ReadValue();
		if (val != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val);
			parameters = val;
		}
		SyntaxToken syntaxToken2 = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken2);
		greaterThanToken = syntaxToken2;
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)lessThanToken);
		writer.WriteValue((IObjectWritable)(object)parameters);
		writer.WriteValue((IObjectWritable)(object)greaterThanToken);
	}

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