XmlExtensionFunctionTable.cs

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using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Reflection;
 
namespace System.Xml.Xsl.Runtime;
 
internal sealed class XmlExtensionFunctionTable
{
    private readonly Dictionary<XmlExtensionFunction, XmlExtensionFunction> _table;
 
    private XmlExtensionFunction _funcCached;
 
    public XmlExtensionFunctionTable()
    {
        _table = new Dictionary<XmlExtensionFunction, XmlExtensionFunction>();
    }
 
    public XmlExtensionFunction Bind(string name, string namespaceUri, int numArgs, [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicMethods | DynamicallyAccessedMemberTypes.NonPublicMethods)] Type objectType, BindingFlags flags)
    {
        if (_funcCached == null)
        {
            _funcCached = new XmlExtensionFunction();
        }
        _funcCached.Init(name, namespaceUri, numArgs, objectType, flags);
        if (!_table.TryGetValue(_funcCached, out var value))
        {
            value = _funcCached;
            _funcCached = null;
            value.Bind();
            _table.Add(value, value);
        }
        return value;
    }
}