static QName GetAtomicSchemaType(XPathItemType itemType)
{
if (itemType.AtomicTypeOrNodeName != null)
{
return(new QName(itemType.AtomicTypeOrNodeName));
}
Type clrType = itemType.ClrType;
switch (Type.GetTypeCode(clrType))
{
case TypeCode.Boolean:
return(QName.XS_BOOLEAN);
case TypeCode.DateTime:
return(new QName(XMLSchemaNamespace, "xs:dateTime"));
case TypeCode.Decimal:
return(QName.XS_DECIMAL);
case TypeCode.Double:
return(QName.XS_DOUBLE);
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
return(QName.XS_INTEGER);
case TypeCode.Single:
return(QName.XS_FLOAT);
default:
case TypeCode.String:
return(QName.XS_STRING);
case TypeCode.Object:
if (clrType == typeof(QName) ||
clrType == typeof(XmlQualifiedName))
{
return(QName.XS_QNAME);
}
if (clrType == typeof(Uri))
{
return(QName.XS_ANYURI);
}
return(new QName(XMLSchemaNamespace, "xs:anyAtomicType"));
}
}
static CodeExpression GetXdmItemTypeExpression(XPathItemType itemType)
{
switch (itemType.Kind)
{
case XPathItemKind.AnyItem:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmAnyItemType)),
"Instance"
));
case XPathItemKind.Atomic:
CodeExpression qnameRef = null;
QName atomicSchemaType = GetAtomicSchemaType(itemType);
if (atomicSchemaType.Uri == XMLSchemaNamespace)
{
FieldInfo qnameField = typeof(QName).GetField("XS_" + atomicSchemaType.LocalName.ToUpperInvariant(), BindingFlags.Public | BindingFlags.Static);
if (qnameField != null)
{
qnameRef = new CodeFieldReferenceExpression {
FieldName = qnameField.Name,
TargetObject = new CodeTypeReferenceExpression(typeof(QName))
};
}
}
if (qnameRef == null)
{
qnameRef = new CodeObjectCreateExpression(
typeof(QName),
new CodePrimitiveExpression(atomicSchemaType.Uri),
new CodePrimitiveExpression(atomicSchemaType.LocalName)
);
}
return(new CodeMethodInvokeExpression {
Method = new CodeMethodReferenceExpression {
MethodName = "BuiltInAtomicType",
TargetObject = new CodeTypeReferenceExpression(typeof(XdmAtomicType))
},
Parameters =
{
qnameRef
}
});
case XPathItemKind.AnyNode:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmAnyNodeType)),
"Instance"
));
case XPathItemKind.Attribute:
case XPathItemKind.SchemaAttribute:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmNodeKind)),
"Attribute"
));
case XPathItemKind.Comment:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmNodeKind)),
"Comment"
));
case XPathItemKind.Document:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmNodeKind)),
"Document"
));
case XPathItemKind.Element:
case XPathItemKind.SchemaElement:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmNodeKind)),
"Element"
));
case XPathItemKind.ProcessingInstruction:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmNodeKind)),
"ProcessingInstruction"
));
case XPathItemKind.Text:
return(new CodeFieldReferenceExpression(
new CodeTypeReferenceExpression(typeof(XdmNodeKind)),
"Text"
));
default:
throw new ArgumentException("itemType not supported.", "itemType");
}
}
