public void AssignTo(Object other)
{
if (!(other is XmlItemDefAttribute))
{
throw new ArgumentException();
}
XmlItemDefAttribute otherInstance = (XmlItemDefAttribute)other;
otherInstance.name = this.name;
otherInstance.type = this.type;
}
/// <exception cref="ArgumentException">
/// The reflected data are invalid.
/// </exception>
public static XmlSerializableMember Create(
MemberInfo memberInfo, ICollection <Type> typesToCache, XmlSerializationSettings settings
)
{
if (memberInfo == null)
{
throw new ArgumentNullException();
}
if (typesToCache == null)
{
throw new ArgumentNullException();
}
FieldInfo fieldInfo = (memberInfo as FieldInfo);
PropertyInfo propertyInfo = (memberInfo as PropertyInfo);
if (fieldInfo == null && propertyInfo == null)
{
return(null);
}
XmlSerializableMember serializableMember = new XmlSerializableMember(fieldInfo, propertyInfo);
Type memberType;
if (fieldInfo != null)
{
memberType = fieldInfo.FieldType;
}
else
{
memberType = propertyInfo.PropertyType;
}
// This check includes IList, ICollection, IEnumerable<T>, IList<T>, ICollection<T>.
Type collectionItemType = null;
Boolean isCollection = (memberType != typeof(String) && typeof(IEnumerable).IsAssignableFrom(memberType));
Boolean isDictionary = (typeof(IDictionary).IsAssignableFrom(memberType) || typeof(IDictionary <,>).IsAssignableFrom(memberType));
if (isCollection)
{
if (memberType.IsGenericType)
{
if (!isDictionary)
{
collectionItemType = memberType.GetGenericArguments()[0];
}
else
{
Type[] genericArgumentTypes = memberType.GetGenericArguments();
// TODO: There may be a better approach for this.
collectionItemType = Type.GetType(String.Format(
"System.Collections.Generic.KeyValuePair`2[[{0}],[{1}]]",
genericArgumentTypes[0].AssemblyQualifiedName, genericArgumentTypes[1].AssemblyQualifiedName
));
}
}
else
{
if (!isDictionary)
{
collectionItemType = typeof(Object);
}
else
{
collectionItemType = typeof(KeyValuePair <Object, Object>);
}
}
}
Boolean isSerializable = false;
String memberName = null;
Int32 orderIndex = 0;
String comment = null;
Boolean isAttribute = false;
XmlItemDefAttributeCollection itemDefAttributes = new XmlItemDefAttributeCollection();
XmlTypeDefAttributeCollection typeDefAttributes = new XmlTypeDefAttributeCollection();
if (!settings.RequiresExplicitXmlMetadataAttributes)
{
// With this settings, any field or property is serializable by default.
memberName = memberInfo.Name;
isSerializable = true;
}
foreach (Attribute attribute in memberInfo.GetCustomAttributes(true))
{
if (attribute is XmlNodeAttribute)
{
XmlNodeAttribute nodeAttribute = (XmlNodeAttribute)attribute;
if (nodeAttribute.Name == null)
{
memberName = memberInfo.Name;
}
else
{
memberName = nodeAttribute.Name;
}
if (nodeAttribute.OrderIndex == -1 && settings.RequiresExplicitOrder)
{
var ex = new ArgumentException("The XmlNodeAttribute on the member does not define an explicit order index as required by the current serialization settings.");
ex.Data.Add("Member Info", memberInfo);
throw ex;
}
comment = nodeAttribute.Comment;
orderIndex = nodeAttribute.OrderIndex;
isAttribute = nodeAttribute.IsAttribute;
isSerializable = true;
continue;
}
if (attribute is XmlNodeTypeDefAttribute)
{
XmlNodeTypeDefAttribute typeDefAttribute = (XmlNodeTypeDefAttribute)attribute;
if (memberType == typeDefAttribute.Type)
{
var ex = new ArgumentException("XmlNodeTypeDefAttribute can not be of the same type as the member.");
ex.Data.Add("Member Info", memberInfo);
throw ex;
}
if (!memberType.IsAssignableFrom(typeDefAttribute.Type))
{
var ex = new ArgumentException("XmlNodeTypeDefAttribute defined with a type which is not castable to the member's type.");
ex.Data.Add("Member Info", memberInfo);
throw ex;
}
typeDefAttributes.Add(typeDefAttribute);
}
if (attribute is XmlItemDefAttribute)
{
if (!isCollection)
{
var ex = new ArgumentException("XmlItemDefAttribute defined for a member of a type that does not implement the IEnumerable or IEnumerable<T> interface.");
ex.Data.Add("Member Info", memberInfo);
throw ex;
}
XmlItemDefAttribute itemDefAttribute = (XmlItemDefAttribute)attribute;
// Check if the type defined by the XmlItemDefAttribute is derived or equal to the collection's item type.
if (!collectionItemType.IsAssignableFrom(itemDefAttribute.Type))
{
var ex = new ArgumentException("The type given by the XmlItemDefAttribute is not assignable to the item type of the collection.");
ex.Data.Add("Member Info", memberInfo);
throw ex;
}
// Check if we have an item attribute for this type already.
if (itemDefAttributes.Contains(itemDefAttribute.Type))
{
var ex = new ArgumentException("Only one XmlItemDefAttribute is allowed for the same item type.");
ex.Data.Add("Item Type", itemDefAttribute.Type);
ex.Data.Add("Member Info", memberInfo);
throw ex;
}
itemDefAttributes.Add(itemDefAttribute);
typesToCache.Add(itemDefAttribute.Type);
}
}
if (!isSerializable)
{
return(null);
}
if (settings.RequiresExplicitCollectionItemDefinition && isCollection && !itemDefAttributes.ContainsType(collectionItemType))
{
var ex = new ArgumentException("The collection member does not define an explicit XmlItemDefAttribute for its type as required by the current serialization settings.");
ex.Data.Add("Member Info", memberInfo);
ex.Data.Add("Item Type", collectionItemType);
throw ex;
}
Boolean isStatic;
if (fieldInfo != null)
{
isStatic = fieldInfo.IsStatic;
}
else
{
// We need at least one accessor to check whether the property is static etc.
MethodInfo[] accessors = propertyInfo.GetAccessors(true);
if (accessors.Length == 0)
{
var ex = new ArgumentException("A XML-Serializable property requires at least one accessor.");
ex.Data.Add("Property Info", serializableMember.MemberInfo);
throw ex;
}
MethodInfo accessor = accessors[0];
if (accessor.IsAbstract)
{
var ex = new ArgumentException("A XML-Serializable property can not be abstract.");
ex.Data.Add("Property Info", serializableMember.MemberInfo);
throw ex;
}
isStatic = accessor.IsStatic;
}
// If any field or property should be serializable, we may not include static members.
if (isStatic && !settings.RequiresExplicitXmlMetadataAttributes)
{
return(null);
}
serializableMember.memberInfo = new XmlMemberInfo(
memberName, memberType, orderIndex, comment, isAttribute, isStatic, isCollection, collectionItemType,
itemDefAttributes, typeDefAttributes
);
if (collectionItemType != null)
{
typesToCache.Add(collectionItemType);
}
typesToCache.Add(memberType);
return(serializableMember);
}