2 // System.Xml.Serialization.ReflectionHelper
5 // Lluis Sanchez Gual (lluis@ximian.com)
7 // Copyright (C) 2003 Ximian, Inc.
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 using System.Reflection;
32 using System.Collections;
34 namespace System.Xml.Serialization
36 internal class ReflectionHelper
38 Hashtable _clrTypes = new Hashtable ();
39 Hashtable _schemaTypes = new Hashtable ();
41 public void RegisterSchemaType (XmlTypeMapping map, string xmlType, string ns)
43 string mapKey = xmlType + "/" + ns;
44 if (!_schemaTypes.ContainsKey (mapKey))
45 _schemaTypes.Add (mapKey, map);
48 public XmlTypeMapping GetRegisteredSchemaType (string xmlType, string ns)
50 string mapKey = xmlType + "/" + ns;
51 return _schemaTypes[mapKey] as XmlTypeMapping;
54 public void RegisterClrType (XmlTypeMapping map, Type type, string ns)
56 if (type == typeof(object)) ns = "";
57 string mapKey = type.FullName + "/" + ns;
58 if (!_clrTypes.ContainsKey (mapKey))
59 _clrTypes.Add (mapKey, map);
62 public XmlTypeMapping GetRegisteredClrType (Type type, string ns)
64 if (type == typeof(object)) ns = "";
65 string mapKey = type.FullName + "/" + ns;
66 return _clrTypes[mapKey] as XmlTypeMapping;
69 public Exception CreateError (XmlTypeMapping map, string message)
71 return new InvalidOperationException ("There was an error reflecting '" + map.TypeFullName + "': " + message);
74 public static void CheckSerializableType (Type type, bool allowPrivateConstructors)
76 if (type.IsArray) return;
78 if (!allowPrivateConstructors && type.GetConstructor (Type.EmptyTypes) == null && !type.IsAbstract && !type.IsValueType)
79 throw new InvalidOperationException (type.FullName + " cannot be serialized because it does not have a default public constructor");
81 if (type.IsInterface && !TypeTranslator.GetTypeData (type).IsListType)
82 throw new InvalidOperationException (type.FullName + " cannot be serialized because it is an interface");
87 if (!t.IsPublic && !t.IsNestedPublic)
88 throw new InvalidOperationException (type.FullName + " is inaccessible due to its protection level. Only public types can be processed");
92 while (t != null && t != oldt);
95 public static string BuildMapKey (Type type)
97 return type.FullName + "::";
100 public static string BuildMapKey (MethodInfo method, string tag)
102 string res = method.DeclaringType.FullName + ":" + method.ReturnType.FullName + " " + method.Name + "(";
104 ParameterInfo[] pars = method.GetParameters ();
106 for (int n=0; n<pars.Length; n++)
108 if (n > 0) res += ", ";
109 res += pars[n].ParameterType.FullName;