ParameterByRefUpdater.cs

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using System.Runtime.CompilerServices;
 
namespace System.Linq.Expressions.Interpreter;
 
internal sealed class ParameterByRefUpdater : ByRefUpdater
{
    private readonly LocalVariable _parameter;
 
    public ParameterByRefUpdater(LocalVariable parameter, int argumentIndex)
        : base(argumentIndex)
    {
        _parameter = parameter;
    }
 
    public override void Update(InterpretedFrame frame, object value)
    {
        if (_parameter.InClosure)
        {
            IStrongBox strongBox = frame.Closure[_parameter.Index];
            strongBox.Value = value;
        }
        else if (_parameter.IsBoxed)
        {
            IStrongBox strongBox2 = (IStrongBox)frame.Data[_parameter.Index];
            strongBox2.Value = value;
        }
        else
        {
            frame.Data[_parameter.Index] = value;
        }
    }
}