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//
// System.Xml.Serialization.TypeData
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
// Lluis Sanchez Gual (lluis@ximian.com)
// Atsushi Enomoto (atsushi@ximian.com)
//
// (C) 2002 Ximian, Inc (http://www.ximian.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
#if NET_2_0
using System.Collections.Generic;
#endif
using System.Globalization;
using System.Reflection;
using System.Text;
using System.Xml.Schema;
namespace System.Xml.Serialization
{
[AttributeUsage (AttributeTargets.Class, AllowMultiple = false)]
internal class XmlTypeConvertorAttribute : Attribute
{
/*
* Bug #12571:
*
* System.Xml.Linq.XElement should be deserializable from an XmlElement.
*
* Types can now register a custom deserializer by adding this custom attribute.
* Method is the name of a private 'static method (static object)' method that will
* be invoked to construct an instance of the object.
*
*/
public string Method {
get;
private set;
}
public XmlTypeConvertorAttribute (string method)
{
Method = method;
}
}
internal class TypeData
{
Type type;
string elementName;
SchemaTypes sType;
Type listItemType;
string typeName;
string fullTypeName;
string csharpName;
string csharpFullName;
TypeData listItemTypeData;
TypeData listTypeData;
TypeData mappedType;
XmlSchemaPatternFacet facet;
MethodInfo typeConvertor;
bool hasPublicConstructor = true;
bool nullableOverride;
public TypeData (Type type, string elementName, bool isPrimitive) :
this(type, elementName, isPrimitive, null, null) {}
public TypeData (Type type, string elementName, bool isPrimitive, TypeData mappedType, XmlSchemaPatternFacet facet)
{
#if NET_2_0
if (type.IsGenericTypeDefinition)
throw new InvalidOperationException ("Generic type definition cannot be used in serialization. Only specific generic types can be used.");
#endif
this.mappedType = mappedType;
this.facet = facet;
this.type = type;
this.typeName = type.Name;
this.fullTypeName = type.FullName.Replace ('+', '.');
if (isPrimitive)
sType = SchemaTypes.Primitive;
else
{
if (type.IsEnum)
sType = SchemaTypes.Enum;
else if (typeof(IXmlSerializable).IsAssignableFrom (type))
sType = SchemaTypes.XmlSerializable;
else if (typeof (System.Xml.XmlNode).IsAssignableFrom (type))
sType = SchemaTypes.XmlNode;
else if (type.IsArray || typeof(IEnumerable).IsAssignableFrom (type))
sType = SchemaTypes.Array;
else
sType = SchemaTypes.Class;
}
if (IsListType)
this.elementName = TypeTranslator.GetArrayName (ListItemTypeData.XmlType);
else
this.elementName = elementName;
if (sType == SchemaTypes.Array || sType == SchemaTypes.Class) {
hasPublicConstructor = !type.IsInterface && (type.IsArray || type.GetConstructor (Type.EmptyTypes) != null || type.IsAbstract || type.IsValueType);
}
LookupTypeConvertor ();
}
internal TypeData (string typeName, string fullTypeName, string xmlType, SchemaTypes schemaType, TypeData listItemTypeData)
{
this.elementName = xmlType;
this.typeName = typeName;
this.fullTypeName = fullTypeName.Replace ('+', '.');
this.listItemTypeData = listItemTypeData;
this.sType = schemaType;
this.hasPublicConstructor = true;
}
void LookupTypeConvertor ()
{
#if NET_4_5
// We only need this for System.Xml.Linq.
var convertor = type.GetCustomAttribute<XmlTypeConvertorAttribute> ();
if (convertor != null)
typeConvertor = type.GetMethod (convertor.Method, BindingFlags.Static | BindingFlags.NonPublic);
#endif
}
internal void ConvertForAssignment (ref object value)
{
// Has this object registered a custom type converter?
if (typeConvertor != null)
value = typeConvertor.Invoke (null, new object[] { value });
}
public string TypeName
{
get {
return typeName;
}
}
public string XmlType
{
get {
return elementName;
}
}
public Type Type
{
get {
return type;
}
}
public string FullTypeName
{
get {
return fullTypeName;
}
}
public string CSharpName
{
get {
if (csharpName == null)
csharpName = (Type == null) ? TypeName : ToCSharpName (Type, false);
return csharpName;
}
}
public string CSharpFullName
{
get {
if (csharpFullName == null)
csharpFullName = (Type == null) ? TypeName : ToCSharpName (Type, true);
return csharpFullName;
}
}
// static Microsoft.CSharp.CSharpCodeProvider csprovider =
// new Microsoft.CSharp.CSharpCodeProvider ();
public static string ToCSharpName (Type type, bool full)
{
// return csprovider.GetTypeOutput (new System.CodeDom.CodeTypeReference (type));
StringBuilder sb = new StringBuilder ();
if (type.IsArray) {
sb.Append (ToCSharpName (type.GetElementType (), full));
sb.Append ('[');
int rank = type.GetArrayRank ();
for (int i = 1; i < rank; i++)
sb.Append (',');
sb.Append (']');
return sb.ToString ();
}
#if NET_2_0
// Generic nested types return the complete list of type arguments,
// including type arguments for the declaring class. This requires
// some special handling
if (type.IsGenericType && !type.IsGenericTypeDefinition) {
Type[] args = type.GetGenericArguments ();
int nt = args.Length - 1;
Type pt = type;
// Loop throguh the declaring class chain, consuming type arguments for every
// generic class in the chain
while (pt != null) {
if (sb.Length > 0)
sb.Insert (0, '.');
int i = pt.Name.IndexOf ('`');
if (i != -1) {
int na = nt - int.Parse (pt.Name.Substring (i+1));
sb.Insert (0,'>');
for (;nt > na; nt--) {
sb.Insert (0, ToCSharpName (args[nt],full));
if (nt - 1 != na)
sb.Insert (0, ',');
}
sb.Insert (0,'<');
sb.Insert (0, pt.Name.Substring (0, i));
} else
sb.Insert (0, pt.Name);
pt = pt.DeclaringType;
}
if (full && type.Namespace.Length > 0)
sb.Insert (0, type.Namespace + ".");
return sb.ToString ();
}
#endif
if (type.DeclaringType != null) {
sb.Append (ToCSharpName (type.DeclaringType, full)).Append ('.');
sb.Append (type.Name);
}
else {
if (full && !string.IsNullOrEmpty(type.Namespace))
sb.Append (type.Namespace).Append ('.');
sb.Append (type.Name);
}
return sb.ToString ();
}
static bool IsKeyword (string name)
{
if (keywordsTable == null) {
Hashtable t = new Hashtable ();
foreach (string s in keywords)
t [s] = s;
keywordsTable = t;
}
return keywordsTable.Contains (name);
}
public SchemaTypes SchemaType
{
get {
return sType;
}
}
public bool IsListType
{
get { return SchemaType == SchemaTypes.Array; }
}
public bool IsComplexType
{
get
{
return (SchemaType == SchemaTypes.Class ||
SchemaType == SchemaTypes.Array ||
SchemaType == SchemaTypes.Enum ||
SchemaType == SchemaTypes.XmlNode ||
SchemaType == SchemaTypes.XmlSerializable ||
!IsXsdType);
}
}
public bool IsValueType
{
get
{
if (type != null) return type.IsValueType;
else return (sType == SchemaTypes.Primitive || sType == SchemaTypes.Enum);
}
}
public bool NullableOverride
{
get { return nullableOverride; }
}
public bool IsNullable
{
get
{
if (nullableOverride)
return true;
#if NET_2_0
return !IsValueType ||
(type != null &&
type.IsGenericType &&
type.GetGenericTypeDefinition () == typeof (Nullable<>));
#else
return !IsValueType;
#endif
}
set
{
nullableOverride = value;
}
}
public TypeData ListItemTypeData
{
get
{
if (listItemTypeData == null && type != null)
listItemTypeData = TypeTranslator.GetTypeData (ListItemType);
return listItemTypeData;
}
}
public Type ListItemType
{
get
{
if (type == null)
throw new InvalidOperationException ("Property ListItemType is not supported for custom types");
if (listItemType != null) return listItemType;
Type genericArgument = null;
if (SchemaType != SchemaTypes.Array)
throw new InvalidOperationException (Type.FullName + " is not a collection");
else if (type.IsArray)
listItemType = type.GetElementType ();
#if NET_2_0
else if (typeof (ICollection).IsAssignableFrom (type) || (genericArgument = GetGenericListItemType (type)) != null)
#else
else if (typeof (ICollection).IsAssignableFrom (type))
#endif
{
if (typeof (IDictionary).IsAssignableFrom (type))
throw new NotSupportedException (string.Format (CultureInfo.InvariantCulture,
"The type {0} is not supported because it implements" +
" IDictionary.", type.FullName));
if (genericArgument != null)
listItemType = genericArgument;
else {
PropertyInfo prop = GetIndexerProperty (type);
if (prop == null)
throw new InvalidOperationException ("You must implement a default accessor on " + type.FullName + " because it inherits from ICollection");
listItemType = prop.PropertyType;
}
MethodInfo addMethod = type.GetMethod ("Add", new Type[] { listItemType });
if (addMethod == null)
throw CreateMissingAddMethodException (type, "ICollection",
listItemType);
}
else // at this point, we must be dealing with IEnumerable implementation
{
MethodInfo met = type.GetMethod ("GetEnumerator", Type.EmptyTypes);
if (met == null) {
// get private implemenation
met = type.GetMethod ("System.Collections.IEnumerable.GetEnumerator",
BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance,
null, Type.EmptyTypes, null);
}
// determine ListItemType using IEnumerator.Current property
PropertyInfo prop = met.ReturnType.GetProperty ("Current");
if (prop == null)
listItemType = typeof (object);
else
listItemType = prop.PropertyType;
MethodInfo addMethod = type.GetMethod ("Add", new Type[] { listItemType });
if (addMethod == null)
throw CreateMissingAddMethodException (type, "IEnumerable",
listItemType);
}
return listItemType;
}
}
public TypeData ListTypeData
{
get
{
if (listTypeData != null) return listTypeData;
listTypeData = new TypeData (TypeName + "[]",
FullTypeName + "[]",
TypeTranslator.GetArrayName(XmlType),
SchemaTypes.Array, this);
return listTypeData;
}
}
public bool IsXsdType {
get { return mappedType == null; }
}
public TypeData MappedType {
get {
return mappedType != null ? mappedType : this;
}
}
public XmlSchemaPatternFacet XmlSchemaPatternFacet {
get {
return facet;
}
}
public bool HasPublicConstructor
{
get { return hasPublicConstructor; }
}
public static PropertyInfo GetIndexerProperty (Type collectionType)
{
PropertyInfo[] props = collectionType.GetProperties (BindingFlags.Instance | BindingFlags.Public);
foreach (PropertyInfo prop in props)
{
ParameterInfo[] pi = prop.GetIndexParameters ();
if (pi != null && pi.Length == 1 && pi[0].ParameterType == typeof(int))
return prop;
}
return null;
}
private static InvalidOperationException CreateMissingAddMethodException (Type type, string inheritFrom, Type argumentType) {
return new InvalidOperationException (string.Format(CultureInfo.InvariantCulture,
"To be XML serializable, types which inherit from {0} must have " +
"an implementation of Add({1}) at all levels of their inheritance " +
"hierarchy. {2} does not implement Add({1}).", inheritFrom,
argumentType.FullName, type.FullName));
}
private static Hashtable keywordsTable;
private static string[] keywords = new string[] {
"abstract","event","new","struct","as","explicit","null","switch","base","extern",
"this","false","operator","throw","break","finally","out","true",
"fixed","override","try","case","params","typeof","catch","for",
"private","foreach","protected","checked","goto","public",
"unchecked","class","if","readonly","unsafe","const","implicit","ref",
"continue","in","return","using","virtual","default",
"interface","sealed","volatile","delegate","internal","do","is",
"sizeof","while","lock","stackalloc","else","static","enum",
"namespace",
"object","bool","byte","float","uint","char","ulong","ushort",
"decimal","int","sbyte","short","double","long","string","void",
#if NET_2_0
"partial", "yield", "where"
#endif
};
#if NET_2_0
internal static Type GetGenericListItemType (Type type)
{
if (type.IsGenericType && typeof(IEnumerable).IsAssignableFrom(type.GetGenericTypeDefinition ())) {
Type [] gatypes = type.GetGenericArguments ();
if (type.GetMethod ("Add", gatypes) != null)
return gatypes [0];
}
Type t = null;
foreach (Type i in type.GetInterfaces ())
if ((t = GetGenericListItemType (i)) != null)
return t;
return null;
}
#endif
}
}
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