public XslNodeEx(XslNodeType t, QilName name, object arg, XslVersion xslVer) : base(t, name, arg, xslVer)
{
}
public QilNode Value; // Contains value for WithParams and global VarPars
public VarPar(XslNodeType nt, QilName name, string select, XslVersion xslVer) : base(nt, name, select, xslVer)
{
}
public XslNodeEx(XslNodeType t, QilName name, object arg, ContextInfo ctxInfo, XslVersion xslVer)
: base(t, name, arg, xslVer)
{
ElemNameLi = ctxInfo.elemNameLi;
EndTagLi = ctxInfo.endTagLi;
}
/* NOTE: This code depends on the form of Qil expressions generated by XPathPatternBuilder.
* More specifically, it recognizes the following two patterns:
*
* A) /, *, @*, text(), comment(), processing-instruction():
* (And* $x:(IsType RefTo LiteralType))
*
* B) foo, @ns:foo, processing-instruction('foo'):
* (And* $x:(And (IsType RefTo LiteralType) (Eq (NameOf RefTo) LiteralQName)))
*
* where all RefTo refer to 'it', and LiteralType has exactly one NodeKind bit set.
*
* If one of patterns recognized, we nip $x off of the nested And sequence:
* (And* (And2 (And1 $x:* $y:*) $z:*)) => (And* (And2 $y:* $z:*))
*/
private void NipOffTypeNameCheck()
{
QilBinary[] leftPath = new QilBinary[4]; // Circular buffer for last 4 And nodes
int idx = -1; // Index of last element in leftPath
QilNode node = condition; // Walker through left path of the tree
nodeKind = XmlNodeKindFlags.None;
qname = null;
while (node.NodeType == QilNodeType.And)
{
node = (leftPath[++idx & 3] = (QilBinary)node).Left;
}
// Recognizing (IsType RefTo LiteralType)
if (!(node.NodeType == QilNodeType.IsType))
{
return;
}
QilBinary isType = (QilBinary)node;
if (!(isType.Left == iterator && isType.Right.NodeType == QilNodeType.LiteralType))
{
return;
}
XmlNodeKindFlags nodeKinds = isType.Right.XmlType.NodeKinds;
if (!Bits.ExactlyOne((uint)nodeKinds))
{
return;
}
// Recognized pattern A, check for B
QilNode x = isType;
nodeKind = nodeKinds;
QilBinary lastAnd = leftPath[idx & 3];
if (lastAnd != null && lastAnd.Right.NodeType == QilNodeType.Eq)
{
QilBinary eq = (QilBinary)lastAnd.Right;
// Recognizing (Eq (NameOf RefTo) LiteralQName)
if (eq.Left.NodeType == QilNodeType.NameOf &&
((QilUnary)eq.Left).Child == iterator && eq.Right.NodeType == QilNodeType.LiteralQName
)
{
// Recognized pattern B
x = lastAnd;
qname = (QilName)((QilLiteral)eq.Right).Value;
idx--;
}
}
// Nip $x off the condition
QilBinary and1 = leftPath[idx & 3];
QilBinary and2 = leftPath[--idx & 3];
if (and2 != null)
{
and2.Left = and1.Right;
}
else if (and1 != null)
{
condition = and1.Right;
}
else
{
condition = null;
}
}
public CycleCheck CycleCheck; // Used to detect circular references
public AttributeSet(QilName name, XslVersion xslVer) : base(XslNodeType.AttributeSet, name, xslVer)
{
}
public static XslNodeEx ApplyTemplates(QilName mode, string select, ContextInfo ctxInfo, XslVersion xslVer)
{
return(new XslNodeEx(XslNodeType.ApplyTemplates, mode, select, ctxInfo, xslVer));
}
public static AttributeSet AttributeSet(QilName name)
{
return(new AttributeSet(name, XslVersion.Current));
}
public static XslNode UseAttributeSet(QilName name)
{
return(new XslNode(XslNodeType.UseAttributeSet, name, null, XslVersion.Current));
}
public static VarPar VarPar(XslNodeType nt, QilName name, string?select, XslVersion xslVer)
{
return(new VarPar(nt, name, select, xslVer));
}
public static XslNode LiteralElement(QilName name)
{
return(new XslNode(XslNodeType.LiteralElement, name, null, XslVersion.Current));
}
public static Template Template(QilName?name, string?match, QilName mode, double priority, XslVersion xslVer)
{
return(new Template(name, match, mode, priority, xslVer));
}
public static XslNode LiteralAttribute(QilName name, string value, XslVersion xslVer)
{
return(new XslNode(XslNodeType.LiteralAttribute, name, value, xslVer));
}
public static Key Key(QilName name, string?match, string?use, XslVersion xslVer)
{
return(new Key(name, match, use, xslVer));
}
public bool IsPhantomName(QilName qname)
{
string nsUri = qname.NamespaceUri;
return(nsUri.Length > 0 && nsUri[0] == '\0');
}
public static XslNode XslNode(XslNodeType nodeType, QilName name, string arg, XslVersion xslVer)
{
return(new XslNode(nodeType, name, arg, xslVer));
}
public static VarPar WithParam(QilName name)
{
return(VarPar(XslNodeType.WithParam, name, /*select*/ null, XslVersion.Current));
}
public static XslNode ApplyImports(QilName mode, Stylesheet sheet, XslVersion xslVer)
{
return(new XslNode(XslNodeType.ApplyImports, mode, sheet, xslVer));
}
// Add variable to the current scope. Returns false in case of duplicates.
public void AddVariable(QilName varName, V value)
{
Debug.Assert(varName.LocalName != null && varName.NamespaceUri != null);
AddRecord(ScopeFlags.Variable, varName.LocalName, varName.NamespaceUri, value);
}
// Special node for start apply-templates
public static XslNodeEx ApplyTemplates(QilName mode)
{
return(new XslNodeEx(XslNodeType.ApplyTemplates, mode, /*select:*/ null, XslVersion.Current));
}
public QilFunction Function; // Compiled body
public ProtoTemplate(XslNodeType nt, QilName name, XslVersion xslVer) : base(nt, name, null, xslVer)
{
}
public static XslNodeEx CallTemplate(QilName name, ContextInfo ctxInfo)
{
return(new XslNodeEx(XslNodeType.CallTemplate, name, null, ctxInfo, XslVersion.Current));
}
public CycleCheck CycleCheck; // Used to detect circular references
public AttributeSet(QilName name, XslVersion xslVer) : base(XslNodeType.AttributeSet, name, xslVer)
{
Debug.Assert(name != null);
}
