private Operation CreateOperationFromAttribute(
XElement element,
ElementKind kind,
XAttribute attribute,
bool throwOnId = false)
{
string attributeName = attribute.LocalName();
if (throwOnId &&
DefaultComparer.NameEquals(attributeName, AttributeNames.Id))
{
Throw(ErrorMessages.CannotUseOperationOnProperty(element, attributeName));
}
PropertyDefinition property;
string name = attribute.LocalName();
if (name == PropertyDefinition.TagsName)
{
property = PropertyDefinition.Tags;
}
else
{
property = GetProperty(attribute);
}
switch (kind)
{
case ElementKind.With:
{
return(new Operation(property, GetValue(attribute), _depth, OperationKind.With));
}
case ElementKind.Without:
{
if (!property.IsCollection)
{
Throw(ErrorMessages.CannotUseOperationOnNonCollectionProperty(element, property.Name));
}
return(new Operation(property, GetValue(attribute), _depth, OperationKind.Without));
}
default:
{
Debug.Assert(kind == ElementKind.New, kind.ToString());
return(new Operation(property, GetValue(attribute), _depth, OperationKind.With));
}
}
}
private IPropertyOperation CreateOperationFromAttribute(
XElement element,
ElementKind kind,
XAttribute attribute,
char separator = ',',
bool throwOnId = false,
bool throwOnCollection = false)
{
string attributeName = attribute.LocalName();
if (throwOnId &&
DefaultComparer.NameEquals(attributeName, AttributeNames.Id))
{
Throw(ErrorMessages.CannotUseOperationOnProperty(element, attributeName));
}
PropertyDefinition property;
string name = attribute.LocalName();
if (name == PropertyDefinition.TagsName)
{
property = PropertyDefinition.Tags;
}
else
{
property = GetProperty(attribute);
}
if (throwOnCollection &&
property.IsCollection)
{
Throw(ErrorMessages.CannotUseOperationOnCollectionProperty(element, property.Name));
}
switch (kind)
{
case ElementKind.Add:
return(new AddOperation(property, GetValue(attribute), Depth));
case ElementKind.AddRange:
return(new AddRangeOperation(property, GetValue(attribute), separator, Depth));
case ElementKind.Remove:
return(new RemoveOperation(property, GetValue(attribute), Depth));
case ElementKind.RemoveRange:
return(new RemoveRangeOperation(property, GetValue(attribute), separator, Depth));
default:
{
Debug.Assert(kind == ElementKind.Set || kind == ElementKind.New, kind.ToString());
if (property.IsCollection)
{
return(new AddOperation(property, GetValue(attribute), Depth));
}
else
{
return(new SetOperation(property, GetValue(attribute), Depth));
}
}
}
}
