private void DisallowReturnTypeChange(CodeTypeReference baseType, CodeTypeReference newType)
{
if (Helper.IsCollectionType(Item.TypeUsage.EdmType) && GetCollectionKind(Item.TypeUsage) != CollectionKind.None)
{
if (newType == null)
{
throw EDesignUtil.InvalidOperation(Strings.CannotChangePropertyReturnTypeToNull(Item.Name, Item.DeclaringType.Name));
}
// you can change the return type of collection properties
// we don't even need to check
return;
}
if (!(baseType == null && newType == null) &&
(
(baseType != null && !baseType.Equals(newType)) ||
(newType != null && !newType.Equals(baseType))
)
)
{
throw EDesignUtil.InvalidOperation(Strings.CannotChangePropertyReturnType(Item.Name, Item.DeclaringType.Name));
}
}
private void AssignBaseType(CodeTypeDeclaration typeDecl,
CodeTypeReference baseType,
CodeTypeReference eventReturnedBaseType)
{
if (eventReturnedBaseType != null && !eventReturnedBaseType.Equals(baseType))
{
_usingStandardBaseClass = false;
typeDecl.BaseTypes.Add(eventReturnedBaseType);
}
else
{
if (baseType != null)
{
typeDecl.BaseTypes.Add(baseType);
}
}
}