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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class MemberBindingExpressionSyntax : ExpressionSyntax
{
	internal readonly SyntaxToken operatorToken;

	internal readonly SimpleNameSyntax name;

	public SyntaxToken OperatorToken => operatorToken;

	public SimpleNameSyntax Name => name;

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

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

	internal MemberBindingExpressionSyntax(SyntaxKind kind, SyntaxToken operatorToken, SimpleNameSyntax name)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)operatorToken);
		this.operatorToken = operatorToken;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)name);
		this.name = name;
	}

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

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

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

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

	public MemberBindingExpressionSyntax Update(SyntaxToken operatorToken, SimpleNameSyntax name)
	{
		if (operatorToken != OperatorToken || name != Name)
		{
			MemberBindingExpressionSyntax memberBindingExpressionSyntax = SyntaxFactory.MemberBindingExpression(operatorToken, name);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				memberBindingExpressionSyntax = GreenNodeExtensions.WithDiagnosticsGreen<MemberBindingExpressionSyntax>(memberBindingExpressionSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				memberBindingExpressionSyntax = GreenNodeExtensions.WithAnnotationsGreen<MemberBindingExpressionSyntax>(memberBindingExpressionSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return memberBindingExpressionSyntax;
		}
		return this;
	}

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

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

	internal MemberBindingExpressionSyntax(ObjectReader reader)
		: base(reader)
	{
		((GreenNode)this).SlotCount = 2;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
		operatorToken = syntaxToken;
		SimpleNameSyntax simpleNameSyntax = (SimpleNameSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)simpleNameSyntax);
		name = simpleNameSyntax;
	}

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

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