public XQueryStepExpr(object nodeTest, XQueryPathExprType type, XQueryContext queryContext)
: this(type, queryContext)
{
if (nodeTest is XmlQualifiedNameTest)
m_nameTest = (XmlQualifiedNameTest)nodeTest;
else if (nodeTest is XQuerySequenceType)
m_typeTest = (XQuerySequenceType)nodeTest;
else
throw new ArgumentException("nodeTest");
}
/// <summary>
/// Return true if the result of intersection with other is not empty
/// </summary>
public bool HasIntersection(XmlQualifiedNameTest other)
{
return (IsNamespaceSubsetOf(other) || other.IsNamespaceSubsetOf(this)) && (IsNameSubsetOf(other) || other.IsNameSubsetOf(this));
}
/// <summary>
/// True if this matches every QName other does
/// </summary>
public bool IsSubsetOf(XmlQualifiedNameTest other)
{
return IsNameSubsetOf(other) && IsNamespaceSubsetOf(other);
}
private bool IsNamespaceSubsetOf(XmlQualifiedNameTest other)
{
return other.IsNamespaceWildcard
|| (this.exclude == other.exclude && this.Namespace == other.Namespace)
|| (other.exclude && !this.exclude && this.Namespace != other.Namespace);
}
private bool IsNameSubsetOf(XmlQualifiedNameTest other)
{
return other.IsNameWildcard || this.Name == other.Name;
}
public XQuerySequenceType(XmlTypeCode typeCode, XmlQualifiedNameTest nameTest)
{
TypeCode = typeCode;
Cardinality = XmlTypeCardinality.One;
NameTest = nameTest;
IsNode = TypeCodeIsNodeType(TypeCode);
if (TypeCode != XmlTypeCode.Item && !IsNode)
SchemaType = XmlSchemaType.GetBuiltInSimpleType(TypeCode);
ItemType = TypeCodeToItemType(TypeCode, SchemaType);
}
public XQuerySequenceType(XmlTypeCode typeCode, XmlQualifiedNameTest nameTest, XmlSchemaType schemaType, bool isOptional)
{
TypeCode = typeCode;
Cardinality = XmlTypeCardinality.One;
NameTest = nameTest;
SchemaType = schemaType;
Nillable = Nillable;
IsNode = TypeCodeIsNodeType(TypeCode);
ItemType = TypeCodeToItemType(TypeCode, SchemaType);
}
public XQuerySequenceType(XmlTypeCode typeCode, XmlQualifiedNameTest nameTest, XmlSchemaType schemaType)
: this(typeCode, nameTest, schemaType, false)
{
}