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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class EqualsValueClauseSyntax : CSharpSyntaxNode
{
	internal readonly SyntaxToken equalsToken;

	internal readonly ExpressionSyntax value;

	public SyntaxToken EqualsToken => equalsToken;

	public ExpressionSyntax Value => value;

	internal EqualsValueClauseSyntax(SyntaxKind kind, SyntaxToken equalsToken, ExpressionSyntax value, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)equalsToken);
		this.equalsToken = equalsToken;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)value);
		this.value = value;
	}

	internal EqualsValueClauseSyntax(SyntaxKind kind, SyntaxToken equalsToken, ExpressionSyntax value, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)equalsToken);
		this.equalsToken = equalsToken;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)value);
		this.value = value;
	}

	internal EqualsValueClauseSyntax(SyntaxKind kind, SyntaxToken equalsToken, ExpressionSyntax value)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 2;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)equalsToken);
		this.equalsToken = equalsToken;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)value);
		this.value = value;
	}

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

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

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

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

	public EqualsValueClauseSyntax Update(SyntaxToken equalsToken, ExpressionSyntax value)
	{
		if (equalsToken != EqualsToken || value != Value)
		{
			EqualsValueClauseSyntax equalsValueClauseSyntax = SyntaxFactory.EqualsValueClause(equalsToken, value);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				equalsValueClauseSyntax = GreenNodeExtensions.WithDiagnosticsGreen<EqualsValueClauseSyntax>(equalsValueClauseSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				equalsValueClauseSyntax = GreenNodeExtensions.WithAnnotationsGreen<EqualsValueClauseSyntax>(equalsValueClauseSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return equalsValueClauseSyntax;
		}
		return this;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new EqualsValueClauseSyntax(base.Kind, equalsToken, value, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new EqualsValueClauseSyntax(base.Kind, equalsToken, value, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal EqualsValueClauseSyntax(ObjectReader reader)
		: base(reader)
	{
		((GreenNode)this).SlotCount = 2;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
		equalsToken = syntaxToken;
		ExpressionSyntax expressionSyntax = (ExpressionSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)expressionSyntax);
		value = expressionSyntax;
	}

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

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