public override void Visit(SoftCastOp op, System.Data.Entity.Core.Query.InternalTrees.Node n)
{
PropertyRefList propertyRefs = (PropertyRefList)null;
if (TypeSemantics.IsReferenceType(op.Type))
{
propertyRefs = PropertyRefList.All;
}
else if (TypeSemantics.IsNominalType(op.Type))
{
propertyRefs = this.m_nodePropertyRefMap[n].Clone();
}
else if (TypeSemantics.IsRowType(op.Type))
{
propertyRefs = PropertyRefList.All;
}
if (propertyRefs != null)
{
this.AddPropertyRefs(n.Child0, propertyRefs);
}
this.VisitChildren(n);
}
private void WriteFunctionElement(EdmFunction function)
{
_writer.WriteStartElement(function.IsFunctionImport ? XmlConstants.FunctionImport : XmlConstants.Function);
_writer.WriteAttributeString(XmlConstants.Name, function.Name);
// Write function ReturnType as attribute if possible.
bool returnParameterHandled = false;
if (function.ReturnParameter != null)
{
var returnTypeUsage = function.ReturnParameter.TypeUsage;
bool collection = returnTypeUsage.EdmType.BuiltInTypeKind == BuiltInTypeKind.CollectionType;
if (collection)
{
Debug.Assert(_schemaVersion >= EntityFrameworkVersions.Version3, "_schemaVersion >= EntityFrameworkVersions.Version3");
returnTypeUsage = ((CollectionType)returnTypeUsage.EdmType).TypeUsage;
}
if (TypeSemantics.IsPrimitiveType(returnTypeUsage) || TypeSemantics.IsNominalType(returnTypeUsage))
{
string typeName = GetFullName(returnTypeUsage.EdmType);
if (collection)
{
typeName = "Collection(" + typeName + ")";
}
_writer.WriteAttributeString(XmlConstants.ReturnType, typeName);
returnParameterHandled = true;
}
}
if (!_isModel)
{
_writer.WriteAttributeString(XmlConstants.AggregateAttribute, GetAttributeValueString(function.AggregateAttribute));
_writer.WriteAttributeString(XmlConstants.BuiltInAttribute, GetAttributeValueString(function.BuiltInAttribute));
_writer.WriteAttributeString(XmlConstants.NiladicFunction, GetAttributeValueString(function.NiladicFunctionAttribute));
_writer.WriteAttributeString(XmlConstants.IsComposable, GetAttributeValueString(function.IsComposableAttribute));
_writer.WriteAttributeString(XmlConstants.ParameterTypeSemantics, GetAttributeValueString(function.ParameterTypeSemanticsAttribute));
}
else if (function.IsFunctionImport && function.IsComposableAttribute)
{
Debug.Assert(_schemaVersion >= EntityFrameworkVersions.Version3, "_schemaVersion >= EntityFrameworkVersions.Version3");
_writer.WriteAttributeString(XmlConstants.IsComposable, GetAttributeValueString(true));
}
if (function.StoreFunctionNameAttribute != null)
{
_writer.WriteAttributeString(XmlConstants.StoreFunctionName, function.StoreFunctionNameAttribute);
}
if (function.CommandTextAttribute != null)
{
Debug.Assert(!_isModel, "Serialization of CommandTextAttribute is not supported for CSDL.");
_writer.WriteAttributeString(XmlConstants.CommandText, function.CommandTextAttribute);
}
if (function.Schema != null)
{
_writer.WriteAttributeString(XmlConstants.Schema, function.Schema);
}
foreach (FunctionParameter parameter in function.Parameters)
{
WriteFunctionParameterElement(parameter);
}
// Write function ReturnType subelement if needed.
if (function.ReturnParameter != null && !returnParameterHandled)
{
// Handle a TVF in s-space: Collection(RowType)
if (function.ReturnParameter.TypeUsage.EdmType.BuiltInTypeKind == BuiltInTypeKind.CollectionType)
{
Debug.Assert(_schemaVersion >= EntityFrameworkVersions.Version3 && !_isModel, "_schemaVersion >= EntityFrameworkVersions.Version3 && !_isModel");
var elementType = ((CollectionType)function.ReturnParameter.TypeUsage.EdmType).TypeUsage.EdmType;
Debug.Assert(elementType.BuiltInTypeKind == BuiltInTypeKind.RowType, "TVF return type is expected to be Collection(RowType)");
var rowType = (RowType)elementType;
_writer.WriteStartElement(XmlConstants.ReturnType);
_writer.WriteStartElement(XmlConstants.CollectionType);
WriteTypeElement(rowType);
_writer.WriteEndElement();
_writer.WriteEndElement();
returnParameterHandled = true;
}
}
Debug.Assert(function.ReturnParameter == null || returnParameterHandled, "ReturnParameter was not handled.");
_writer.WriteEndElement();
}