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

namespace Microsoft.CodeAnalysis.CSharp;

internal sealed class BoundPassByCopy : BoundExpression
{
	public override ConstantValue? ConstantValueOpt => null;

	public override Symbol? ExpressionSymbol => Expression.ExpressionSymbol;

	protected override ImmutableArray<BoundNode?> Children => ImmutableArray.Create((BoundNode)Expression);

	public override object Display => Expression.Display;

	public BoundExpression Expression { get; }

	public BoundPassByCopy(SyntaxNode syntax, BoundExpression expression, TypeSymbol? type, bool hasErrors = false)
		: base(BoundKind.PassByCopy, syntax, type, hasErrors || expression.HasErrors())
	{
		Expression = expression;
	}

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

	public BoundPassByCopy Update(BoundExpression expression, TypeSymbol? type)
	{
		if (expression != Expression || !TypeSymbol.Equals(type, base.Type, (TypeCompareKind)0))
		{
			BoundPassByCopy boundPassByCopy = new BoundPassByCopy(Syntax, expression, type, base.HasErrors);
			boundPassByCopy.CopyAttributes(this);
			return boundPassByCopy;
		}
		return this;
	}
}