QilFunction.cs

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namespace System.Xml.Xsl.Qil;
 
internal sealed class QilFunction : QilReference
{
    private QilNode _arguments;
 
    private QilNode _definition;
 
    private QilNode _sideEffects;
 
    public override int Count => 3;
 
    public override QilNode this[int index]
    {
        get
        {
            return index switch
            {
                0 => _arguments, 
                1 => _definition, 
                2 => _sideEffects, 
                _ => throw new IndexOutOfRangeException(), 
            };
        }
        set
        {
            switch (index)
            {
            case 0:
                _arguments = value;
                break;
            case 1:
                _definition = value;
                break;
            case 2:
                _sideEffects = value;
                break;
            default:
                throw new IndexOutOfRangeException();
            }
        }
    }
 
    public QilList Arguments => (QilList)_arguments;
 
    public QilNode Definition
    {
        get
        {
            return _definition;
        }
        set
        {
            _definition = value;
        }
    }
 
    public bool MaybeSideEffects => _sideEffects.NodeType == QilNodeType.True;
 
    public QilFunction(QilNodeType nodeType, QilNode arguments, QilNode definition, QilNode sideEffects, XmlQueryType resultType)
        : base(nodeType)
    {
        _arguments = arguments;
        _definition = definition;
        _sideEffects = sideEffects;
        xmlType = resultType;
    }
}