UseAttributeSetsAction.cs

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namespace System.Xml.Xsl.XsltOld;
 
internal class UseAttributeSetsAction : CompiledAction
{
    private XmlQualifiedName[] _useAttributeSets;
 
    private string _useString;
 
    internal XmlQualifiedName[] UsedSets => _useAttributeSets;
 
    internal override void Compile(Compiler compiler)
    {
        _useString = compiler.Input.Value;
        if (_useString.Length == 0)
        {
            _useAttributeSets = Array.Empty<XmlQualifiedName>();
            return;
        }
        string[] array = XmlConvert.SplitString(_useString);
        try
        {
            _useAttributeSets = new XmlQualifiedName[array.Length];
            for (int i = 0; i < array.Length; i++)
            {
                _useAttributeSets[i] = compiler.CreateXPathQName(array[i]);
            }
        }
        catch (XsltException)
        {
            if (!compiler.ForwardCompatibility)
            {
                throw;
            }
            _useAttributeSets = Array.Empty<XmlQualifiedName>();
        }
    }
 
    internal override void Execute(Processor processor, ActionFrame frame)
    {
        switch (frame.State)
        {
        default:
            return;
        case 0:
            frame.Counter = 0;
            frame.State = 2;
            break;
        case 2:
            break;
        }
        if (frame.Counter < _useAttributeSets.Length)
        {
            AttributeSetAction attributeSet = processor.RootAction.GetAttributeSet(_useAttributeSets[frame.Counter]);
            frame.IncrementCounter();
            processor.PushActionFrame(attributeSet, frame.NodeSet);
        }
        else
        {
            frame.Finished();
        }
    }
}