using System.Diagnostics;
using Microsoft.CodeAnalysis.CSharp.Symbols;

namespace Microsoft.CodeAnalysis.CSharp;

internal sealed class BoundSizeOfOperator : BoundExpression
{
	public new TypeSymbol Type => base.Type;

	public BoundTypeExpression SourceType { get; }

	public override ConstantValue? ConstantValueOpt { get; }

	public BoundSizeOfOperator(SyntaxNode syntax, BoundTypeExpression sourceType, ConstantValue? constantValueOpt, TypeSymbol type, bool hasErrors = false)
		: base(BoundKind.SizeOfOperator, syntax, type, hasErrors || sourceType.HasErrors())
	{
		SourceType = sourceType;
		ConstantValueOpt = constantValueOpt;
	}

	[DebuggerStepThrough]
	public override BoundNode? Accept(BoundTreeVisitor visitor)
	{
		return visitor.VisitSizeOfOperator(this);
	}

	public BoundSizeOfOperator Update(BoundTypeExpression sourceType, ConstantValue? constantValueOpt, TypeSymbol type)
	{
		if (sourceType != SourceType || constantValueOpt != ConstantValueOpt || !TypeSymbol.Equals(type, Type, (TypeCompareKind)0))
		{
			BoundSizeOfOperator boundSizeOfOperator = new BoundSizeOfOperator(Syntax, sourceType, constantValueOpt, type, base.HasErrors);
			boundSizeOfOperator.CopyAttributes(this);
			return boundSizeOfOperator;
		}
		return this;
	}
}