using System;
using System.Collections.Generic;
using Roslyn.Utilities;

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class NameColonSyntax : BaseExpressionColonSyntax
{
	internal readonly IdentifierNameSyntax name;

	internal readonly SyntaxToken colonToken;

	public override ExpressionSyntax Expression => Name;

	public IdentifierNameSyntax Name => name;

	public override SyntaxToken ColonToken => colonToken;

	internal NameColonSyntax(SyntaxKind kind, IdentifierNameSyntax name, SyntaxToken colonToken, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)name);
		this.name = name;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)colonToken);
		this.colonToken = colonToken;
	}

	internal NameColonSyntax(SyntaxKind kind, IdentifierNameSyntax name, SyntaxToken colonToken, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)name);
		this.name = name;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)colonToken);
		this.colonToken = colonToken;
	}

	internal NameColonSyntax(SyntaxKind kind, IdentifierNameSyntax name, SyntaxToken colonToken)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)name);
		this.name = name;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)colonToken);
		this.colonToken = colonToken;
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => name, 
			1 => colonToken, 
			_ => null, 
		});
	}

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

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

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

	public NameColonSyntax Update(IdentifierNameSyntax name, SyntaxToken colonToken)
	{
		if (name != Name || colonToken != ColonToken)
		{
			NameColonSyntax nameColonSyntax = SyntaxFactory.NameColon(name, colonToken);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				nameColonSyntax = GreenNodeExtensions.WithDiagnosticsGreen<NameColonSyntax>(nameColonSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				nameColonSyntax = GreenNodeExtensions.WithAnnotationsGreen<NameColonSyntax>(nameColonSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return nameColonSyntax;
		}
		return this;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new NameColonSyntax(base.Kind, name, colonToken, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new NameColonSyntax(base.Kind, name, colonToken, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal NameColonSyntax(ObjectReader reader)
		: base(reader)
	{
		((GreenNode)this).SlotCount = 2;
		IdentifierNameSyntax identifierNameSyntax = (IdentifierNameSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)identifierNameSyntax);
		name = identifierNameSyntax;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
		colonToken = syntaxToken;
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)name);
		writer.WriteValue((IObjectWritable)(object)colonToken);
	}

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