public UnaryOperatorNode(XPath2Context context, UnaryOperator action, object node, XPath2ResultType resultType)
: base(context)
{
_unaryOper = action;
_resultType = resultType;
Add(node);
}
public BinaryOperatorNode(XPath2Context context, BinaryOperator action, object node1, object node2, XPath2ResultType resultType)
: base(context)
{
_binaryOper = action;
_resultType = resultType;
Add(node1);
Add(node2);
}
public override XPath2ResultType GetReturnType(object[] dataPool)
{
if (_returnTypeDelegate != null)
{
XPath2ResultType resType1 = this[0].GetReturnType(dataPool);
XPath2ResultType resType2 = this[1].GetReturnType(dataPool);
return(_returnTypeDelegate(resType1, resType2));
}
return(base.GetReturnType(dataPool));
}
public override XPath2ResultType GetReturnType(object[] dataPool)
{
XPath2ResultType res1 = this[1].GetReturnType(dataPool);
XPath2ResultType res2 = this[2].GetReturnType(dataPool);
if (res1 == res2)
{
return(res1);
}
return(XPath2ResultType.Any);
}
public static XPath2ResultType MultiplyResult(XPath2ResultType resType1, XPath2ResultType resType2)
{
if ((resType1 == XPath2ResultType.Duration && resType2 == XPath2ResultType.Number) ||
(resType1 == XPath2ResultType.Number && resType2 == XPath2ResultType.Duration))
{
return(XPath2ResultType.Duration);
}
if (resType1 == XPath2ResultType.Number && resType2 == XPath2ResultType.Number)
{
return(XPath2ResultType.Number);
}
return(XPath2ResultType.Any);
}
public void Add(string ns, string name, int arity, XPath2ResultType resultType, XPathFunctionDelegate action, bool overwriteExistingEntry = true)
{
var key = new FunctionDesc(name, ns, arity);
if (_funcTable.ContainsKey(key) && overwriteExistingEntry)
{
_funcTable[key] = new XPathFunctionDef(name, action, resultType);
}
else
{
_funcTable.Add(key, new XPathFunctionDef(name, action, resultType));
}
}
public override XPath2ResultType GetReturnType(object[] dataPool)
{
if (_func.ResultType == XPath2ResultType.Any && Count > 0)
{
XPath2ResultType resType = this[0].GetItemType(dataPool);
if (resType == XPath2ResultType.NodeSet)
{
return(XPath2ResultType.Any);
}
return(resType);
}
return(_func.ResultType);
}
public static XPath2ResultType DivisionResult(XPath2ResultType resType1, XPath2ResultType resType2)
{
if (resType1 == XPath2ResultType.Duration && resType2 == XPath2ResultType.Number)
{
return(XPath2ResultType.Duration);
}
if (resType1 == XPath2ResultType.Duration && resType2 == XPath2ResultType.Duration)
{
return(XPath2ResultType.Number);
}
if (resType1 == XPath2ResultType.Number && resType2 == XPath2ResultType.Number)
{
return(XPath2ResultType.Number);
}
return(XPath2ResultType.Any);
}
internal override XPath2ResultType GetItemType(object[] dataPool)
{
XPath2ResultType resType = XPath2ResultType.Any;
foreach (AbstractNode child in this)
{
if (!child.IsEmptySequence())
{
XPath2ResultType itemType = child.GetItemType(dataPool);
if (itemType != resType)
{
if (resType != XPath2ResultType.Any)
{
return(XPath2ResultType.Any);
}
resType = itemType;
}
}
}
return(resType);
}
public static XPath2ResultType SubstractionResult(XPath2ResultType resType1, XPath2ResultType resType2)
{
if (resType1 == XPath2ResultType.Number ||
resType2 == XPath2ResultType.Number)
{
return(XPath2ResultType.Number);
}
if (resType1 == XPath2ResultType.DateTime)
{
if (resType2 == XPath2ResultType.DateTime)
{
return(XPath2ResultType.Duration);
}
if (resType2 == XPath2ResultType.Duration)
{
return(XPath2ResultType.DateTime);
}
}
if (resType1 == XPath2ResultType.Duration && resType2 == XPath2ResultType.Duration)
{
return(XPath2ResultType.Duration);
}
return(XPath2ResultType.Any);
}
public OrderedBinaryOperatorNode(XPath2Context context, BinaryOperator action, object node1, object node2,
XPath2ResultType resultType)
: base(context, action, node1, node2, resultType)
{
}
public AtomizedUnaryOperatorNode(XPath2Context context, UnaryOperator action, object node, XPath2ResultType resultType)
: base(context, action, node, resultType)
{
}
public void Add(string ns, string name, XPath2ResultType resultType, XPathFunctionDelegate action, bool overwriteExistingEntry = true)
{
Add(ns, name, -1, resultType, action, overwriteExistingEntry);
}
public XPathFunctionDef(string name, XPathFunctionDelegate _delegate, XPath2ResultType resultType)
{
Name = name;
Delegate = _delegate;
ResultType = resultType;
}
