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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class ParameterListSyntax : BaseParameterListSyntax
{
	internal readonly SyntaxToken openParenToken;

	internal readonly GreenNode? parameters;

	internal readonly SyntaxToken closeParenToken;

	public SyntaxToken OpenParenToken => openParenToken;

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

	public SyntaxToken CloseParenToken => closeParenToken;

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

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

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

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

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

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

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

	public ParameterListSyntax Update(SyntaxToken openParenToken, SeparatedSyntaxList<ParameterSyntax> parameters, SyntaxToken closeParenToken)
	{
		//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 (openParenToken == OpenParenToken)
		{
			SeparatedSyntaxList<ParameterSyntax> val = Parameters;
			if (!((ref parameters) != (ref val)) && closeParenToken == CloseParenToken)
			{
				return this;
			}
		}
		ParameterListSyntax parameterListSyntax = SyntaxFactory.ParameterList(openParenToken, parameters, closeParenToken);
		DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
		if (diagnostics != null && diagnostics.Length != 0)
		{
			parameterListSyntax = GreenNodeExtensions.WithDiagnosticsGreen<ParameterListSyntax>(parameterListSyntax, diagnostics);
		}
		SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
		if (annotations != null && annotations.Length != 0)
		{
			parameterListSyntax = GreenNodeExtensions.WithAnnotationsGreen<ParameterListSyntax>(parameterListSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
		}
		return parameterListSyntax;
	}

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

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

	internal ParameterListSyntax(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);
		openParenToken = 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);
		closeParenToken = syntaxToken2;
	}

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

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