5 // Sean MacIsaac (macisaac@ximian.com)
6 // Paolo Molaro (lupus@ximian.com)
7 // Patrik Torstensson (patrik.torstensson@labs2.com)
8 // Gonzalo Paniagua (gonzalo@ximian.com)
10 // (c) 2001-2003 Ximian, Inc.
11 // Copyright (C) 2003-2005 Novell, Inc (http://www.novell.com)
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Globalization;
34 using System.Reflection;
35 using System.Runtime.CompilerServices;
36 using System.Runtime.Serialization;
37 using System.Security;
42 internal class MonoType : Type, ISerializable
45 [MethodImplAttribute(MethodImplOptions.InternalCall)]
46 private static extern void type_from_obj (MonoType type, Object obj);
49 internal MonoType (Object obj)
51 // this should not be used - lupus
52 type_from_obj (this, obj);
54 throw new NotImplementedException ();
57 [MethodImplAttribute(MethodImplOptions.InternalCall)]
58 private static extern TypeAttributes get_attributes (Type type);
60 protected override TypeAttributes GetAttributeFlagsImpl ()
62 return get_attributes (this);
65 protected override ConstructorInfo GetConstructorImpl (BindingFlags bindingAttr,
67 CallingConventions callConvention,
69 ParameterModifier[] modifiers)
71 if (bindingAttr == BindingFlags.Default)
72 bindingAttr = BindingFlags.Public | BindingFlags.Instance;
74 ConstructorInfo[] methods = GetConstructors (bindingAttr);
75 ConstructorInfo found = null;
78 foreach (ConstructorInfo m in methods) {
79 // Under MS.NET, Standard|HasThis matches Standard...
80 if (callConvention != CallingConventions.Any && ((m.CallingConvention & callConvention) != callConvention))
89 throw new AmbiguousMatchException ();
90 return (ConstructorInfo) CheckMethodSecurity (found);
92 match = new MethodBase [count];
97 foreach (ConstructorInfo m in methods) {
98 if (callConvention != CallingConventions.Any && ((m.CallingConvention & callConvention) != callConvention))
104 binder = Binder.DefaultBinder;
105 return (ConstructorInfo) CheckMethodSecurity (binder.SelectMethod (bindingAttr, match, types, modifiers));
108 [MethodImplAttribute(MethodImplOptions.InternalCall)]
109 internal extern ConstructorInfo[] GetConstructors_internal (BindingFlags bindingAttr, Type reflected_type);
111 public override ConstructorInfo[] GetConstructors (BindingFlags bindingAttr)
113 return GetConstructors_internal (bindingAttr, this);
116 [MethodImplAttribute(MethodImplOptions.InternalCall)]
117 extern EventInfo InternalGetEvent (string name, BindingFlags bindingAttr);
119 public override EventInfo GetEvent (string name, BindingFlags bindingAttr)
122 throw new ArgumentNullException ("name");
124 return InternalGetEvent (name, bindingAttr);
127 [MethodImplAttribute(MethodImplOptions.InternalCall)]
128 internal extern EventInfo[] GetEvents_internal (BindingFlags bindingAttr, Type reflected_type);
130 public override EventInfo[] GetEvents (BindingFlags bindingAttr)
132 return GetEvents_internal (bindingAttr, this);
135 [MethodImplAttribute(MethodImplOptions.InternalCall)]
136 public extern override FieldInfo GetField (string name, BindingFlags bindingAttr);
138 [MethodImplAttribute(MethodImplOptions.InternalCall)]
139 internal extern FieldInfo[] GetFields_internal (BindingFlags bindingAttr, Type reflected_type);
141 public override FieldInfo[] GetFields (BindingFlags bindingAttr)
143 return GetFields_internal (bindingAttr, this);
146 public override Type GetInterface (string name, bool ignoreCase)
149 throw new ArgumentNullException ();
151 Type[] interfaces = GetInterfaces();
153 foreach (Type type in interfaces) {
154 if (String.Compare (type.Name, name, ignoreCase, CultureInfo.InvariantCulture) == 0)
156 if (String.Compare (type.FullName, name, ignoreCase, CultureInfo.InvariantCulture) == 0)
163 [MethodImplAttribute(MethodImplOptions.InternalCall)]
164 public extern override Type[] GetInterfaces();
166 public override MemberInfo[] GetMembers( BindingFlags bindingAttr)
168 return FindMembers (MemberTypes.All, bindingAttr, null, null);
171 [MethodImplAttribute(MethodImplOptions.InternalCall)]
172 internal extern MethodInfo [] GetMethodsByName (string name, BindingFlags bindingAttr, bool ignoreCase, Type reflected_type);
174 public override MethodInfo [] GetMethods (BindingFlags bindingAttr)
176 return GetMethodsByName (null, bindingAttr, false, this);
179 protected override MethodInfo GetMethodImpl (string name, BindingFlags bindingAttr,
181 CallingConventions callConvention,
182 Type[] types, ParameterModifier[] modifiers)
184 bool ignoreCase = ((bindingAttr & BindingFlags.IgnoreCase) != 0);
185 MethodInfo[] methods = GetMethodsByName (name, bindingAttr, ignoreCase, this);
186 MethodInfo found = null;
190 foreach (MethodInfo m in methods) {
191 // Under MS.NET, Standard|HasThis matches Standard...
192 if (callConvention != CallingConventions.Any && ((m.CallingConvention & callConvention) != callConvention))
201 if (count == 1 && types == null)
202 return (MethodInfo) CheckMethodSecurity (found);
204 match = new MethodBase [count];
209 foreach (MethodInfo m in methods) {
210 if (callConvention != CallingConventions.Any && ((m.CallingConvention & callConvention) != callConvention))
217 return (MethodInfo) CheckMethodSecurity (Binder.FindMostDerivedMatch (match));
220 binder = Binder.DefaultBinder;
222 return (MethodInfo) CheckMethodSecurity (binder.SelectMethod (bindingAttr, match, types, modifiers));
225 [MethodImplAttribute(MethodImplOptions.InternalCall)]
226 extern MethodInfo GetCorrespondingInflatedMethod (MethodInfo generic);
228 [MethodImplAttribute(MethodImplOptions.InternalCall)]
229 extern ConstructorInfo GetCorrespondingInflatedConstructor (ConstructorInfo generic);
231 internal override MethodInfo GetMethod (MethodInfo fromNoninstanciated)
233 return GetCorrespondingInflatedMethod (fromNoninstanciated);
236 internal override ConstructorInfo GetConstructor (ConstructorInfo fromNoninstanciated)
238 return GetCorrespondingInflatedConstructor (fromNoninstanciated);
241 internal override FieldInfo GetField (FieldInfo fromNoninstanciated)
243 return GetField (fromNoninstanciated.Name);
246 [MethodImplAttribute(MethodImplOptions.InternalCall)]
247 public extern override Type GetNestedType (string name, BindingFlags bindingAttr);
249 [MethodImplAttribute(MethodImplOptions.InternalCall)]
250 public extern override Type[] GetNestedTypes (BindingFlags bindingAttr);
252 [MethodImplAttribute(MethodImplOptions.InternalCall)]
253 internal extern PropertyInfo[] GetPropertiesByName (string name, BindingFlags bindingAttr, bool icase, Type reflected_type);
255 public override PropertyInfo [] GetProperties (BindingFlags bindingAttr)
257 return GetPropertiesByName (null, bindingAttr, false, this);
260 protected override PropertyInfo GetPropertyImpl (string name, BindingFlags bindingAttr,
261 Binder binder, Type returnType,
263 ParameterModifier[] modifiers)
265 bool ignoreCase = ((bindingAttr & BindingFlags.IgnoreCase) != 0);
266 PropertyInfo [] props = GetPropertiesByName (name, bindingAttr, ignoreCase, this);
267 int count = props.Length;
271 if (count == 1 && (types == null || types.Length == 0))
275 binder = Binder.DefaultBinder;
277 return binder.SelectProperty (bindingAttr, props, returnType, types, modifiers);
280 protected override bool HasElementTypeImpl ()
282 return IsArrayImpl() || IsByRefImpl() || IsPointerImpl ();
285 protected override bool IsArrayImpl ()
287 return Type.IsArrayImpl (this);
290 [MethodImplAttribute(MethodImplOptions.InternalCall)]
291 protected extern override bool IsByRefImpl ();
293 protected override bool IsCOMObjectImpl ()
298 [MethodImplAttribute(MethodImplOptions.InternalCall)]
299 protected extern override bool IsPointerImpl ();
301 [MethodImplAttribute(MethodImplOptions.InternalCall)]
302 protected extern override bool IsPrimitiveImpl ();
304 protected override bool IsValueTypeImpl ()
306 return type_is_subtype_of (this, typeof (System.ValueType), false) &&
307 this != typeof (System.ValueType) &&
308 this != typeof (System.Enum);
311 public override object InvokeMember (string name, BindingFlags invokeAttr,
312 Binder binder, object target, object[] args,
313 ParameterModifier[] modifiers,
314 CultureInfo culture, string[] namedParameters)
317 if ((invokeAttr & BindingFlags.CreateInstance) != 0) {
318 if ((invokeAttr & (BindingFlags.GetField |
319 BindingFlags.GetField | BindingFlags.GetProperty |
320 BindingFlags.SetProperty)) != 0)
321 throw new ArgumentException ("invokeAttr");
322 } else if (name == null)
323 throw new ArgumentNullException ("name");
324 if ((invokeAttr & BindingFlags.GetField) != 0 && (invokeAttr & BindingFlags.SetField) != 0)
325 throw new ArgumentException ("invokeAttr");
326 if ((invokeAttr & BindingFlags.GetProperty) != 0 && (invokeAttr & BindingFlags.SetProperty) != 0)
327 throw new ArgumentException ("invokeAttr");
328 if ((invokeAttr & BindingFlags.InvokeMethod) != 0 && (invokeAttr & (BindingFlags.SetProperty|BindingFlags.SetField)) != 0)
329 throw new ArgumentException ("invokeAttr");
330 if ((invokeAttr & BindingFlags.SetField) != 0 && ((args == null) || args.Length != 1))
331 throw new ArgumentException ("invokeAttr");
332 if ((namedParameters != null) && ((args == null) || args.Length < namedParameters.Length))
333 throw new ArgumentException ("namedParameters cannot be more than named arguments in number");
335 /* set some defaults if none are provided :-( */
336 if ((invokeAttr & (BindingFlags.Public|BindingFlags.NonPublic)) == 0)
337 invokeAttr |= BindingFlags.Public;
338 if ((invokeAttr & (BindingFlags.Static|BindingFlags.Instance)) == 0)
339 invokeAttr |= BindingFlags.Static|BindingFlags.Instance;
342 binder = Binder.DefaultBinder;
343 if ((invokeAttr & BindingFlags.CreateInstance) != 0) {
344 /* the name is ignored */
345 invokeAttr |= BindingFlags.DeclaredOnly;
346 ConstructorInfo[] ctors = GetConstructors (invokeAttr);
348 MethodBase ctor = binder.BindToMethod (invokeAttr, ctors, ref args, modifiers, culture, namedParameters, out state);
350 if (this.IsValueType && args == null)
351 return Activator.CreateInstanceInternal (this);
353 throw new MissingMethodException ("Constructor on type '" + FullName + "' not found.");
355 object result = ctor.Invoke (target, invokeAttr, binder, args, culture);
356 binder.ReorderArgumentArray (ref args, state);
359 if (name == String.Empty && Attribute.IsDefined (this, typeof (DefaultMemberAttribute))) {
360 DefaultMemberAttribute attr = (DefaultMemberAttribute) Attribute.GetCustomAttribute (this, typeof (DefaultMemberAttribute));
361 name = attr.MemberName;
363 bool ignoreCase = (invokeAttr & BindingFlags.IgnoreCase) != 0;
364 string throwMissingMethodDescription = null;
365 bool throwMissingFieldException = false;
367 if ((invokeAttr & BindingFlags.InvokeMethod) != 0) {
368 MethodInfo[] methods = GetMethodsByName (name, invokeAttr, ignoreCase, this);
370 MethodBase m = binder.BindToMethod (invokeAttr, methods, ref args, modifiers, culture, namedParameters, out state);
372 if (methods.Length > 0)
373 throwMissingMethodDescription = "The best match for method " + name + " has some invalid parameter.";
375 throwMissingMethodDescription = "Cannot find method " + name + ".";
377 object result = m.Invoke (target, invokeAttr, binder, args, culture);
378 binder.ReorderArgumentArray (ref args, state);
382 if ((invokeAttr & BindingFlags.GetField) != 0) {
383 FieldInfo f = GetField (name, invokeAttr);
385 return f.GetValue (target);
386 } else if ((invokeAttr & BindingFlags.GetProperty) == 0) {
387 throwMissingFieldException = true;
389 /* try GetProperty */
390 } else if ((invokeAttr & BindingFlags.SetField) != 0) {
391 FieldInfo f = GetField (name, invokeAttr);
393 f.SetValue (target, args [0]);
395 } else if ((invokeAttr & BindingFlags.SetProperty) == 0) {
396 throwMissingFieldException = true;
398 /* try SetProperty */
400 if ((invokeAttr & BindingFlags.GetProperty) != 0) {
401 PropertyInfo[] properties = GetPropertiesByName (name, invokeAttr, ignoreCase, this);
404 for (i = 0; i < properties.Length; ++i) {
405 if ((properties [i].GetGetMethod (true) != null))
408 MethodBase[] smethods = new MethodBase [count];
410 for (i = 0; i < properties.Length; ++i) {
411 MethodBase mb = properties [i].GetGetMethod (true);
413 smethods [count++] = mb;
415 MethodBase m = binder.BindToMethod (invokeAttr, smethods, ref args, modifiers, culture, namedParameters, out state);
417 throwMissingFieldException = true;
419 object result = m.Invoke (target, invokeAttr, binder, args, culture);
420 binder.ReorderArgumentArray (ref args, state);
423 } else if ((invokeAttr & BindingFlags.SetProperty) != 0) {
424 PropertyInfo[] properties = GetPropertiesByName (name, invokeAttr, ignoreCase, this);
427 for (i = 0; i < properties.Length; ++i) {
428 if (properties [i].GetSetMethod (true) != null)
431 MethodBase[] smethods = new MethodBase [count];
433 for (i = 0; i < properties.Length; ++i) {
434 MethodBase mb = properties [i].GetSetMethod (true);
436 smethods [count++] = mb;
438 MethodBase m = binder.BindToMethod (invokeAttr, smethods, ref args, modifiers, culture, namedParameters, out state);
440 throwMissingFieldException = true;
442 object result = m.Invoke (target, invokeAttr, binder, args, culture);
443 binder.ReorderArgumentArray (ref args, state);
447 if (throwMissingMethodDescription != null)
448 throw new MissingMethodException(throwMissingMethodDescription);
449 if (throwMissingFieldException)
450 throw new MissingFieldException("Cannot find variable " + name + ".");
455 [MethodImplAttribute(MethodImplOptions.InternalCall)]
456 public extern override Type GetElementType ();
458 public override Type UnderlyingSystemType {
460 // This has _nothing_ to do with getting the base type of an enum etc.
465 public extern override Assembly Assembly {
466 [MethodImplAttribute(MethodImplOptions.InternalCall)]
470 public override string AssemblyQualifiedName {
472 return getFullName (true, true);
476 [MethodImplAttribute(MethodImplOptions.InternalCall)]
477 private extern string getFullName(bool full_name, bool assembly_qualified);
479 public extern override Type BaseType {
480 [MethodImplAttribute(MethodImplOptions.InternalCall)]
484 public override string FullName {
486 return getFullName (true, false);
490 public override Guid GUID {
492 object[] att = GetCustomAttributes(typeof(System.Runtime.InteropServices.GuidAttribute), true);
495 return new Guid(((System.Runtime.InteropServices.GuidAttribute)att[0]).Value);
499 public override bool IsDefined (Type attributeType, bool inherit)
501 return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
504 public override object[] GetCustomAttributes (bool inherit)
506 return MonoCustomAttrs.GetCustomAttributes (this, inherit);
509 public override object[] GetCustomAttributes (Type attributeType, bool inherit)
511 if (attributeType == null)
513 throw new ArgumentNullException("attributeType");
516 return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
519 public override MemberTypes MemberType {
521 if (DeclaringType != null)
522 return MemberTypes.NestedType;
524 return MemberTypes.TypeInfo;
528 public extern override string Name {
529 [MethodImplAttribute(MethodImplOptions.InternalCall)]
533 public extern override string Namespace {
534 [MethodImplAttribute(MethodImplOptions.InternalCall)]
538 public extern override Module Module {
539 [MethodImplAttribute(MethodImplOptions.InternalCall)]
543 public extern override Type DeclaringType {
544 [MethodImplAttribute(MethodImplOptions.InternalCall)]
548 public override Type ReflectedType {
550 return DeclaringType;
554 public override RuntimeTypeHandle TypeHandle {
560 [MethodImplAttribute(MethodImplOptions.InternalCall)]
561 public extern override int GetArrayRank ();
563 public void GetObjectData(SerializationInfo info, StreamingContext context)
565 UnitySerializationHolder.GetTypeData (this, info, context);
568 public override string ToString()
570 return getFullName (false, false);
573 #if NET_2_0 || BOOTSTRAP_NET_2_0
574 [MethodImplAttribute(MethodImplOptions.InternalCall)]
575 public extern override Type [] GetGenericArguments ();
577 public override bool ContainsGenericParameters {
579 if (IsGenericParameter)
583 foreach (Type arg in GetGenericArguments ())
584 if (arg.ContainsGenericParameters)
589 return GetElementType ().ContainsGenericParameters;
595 public extern override bool IsGenericParameter {
596 [MethodImplAttribute(MethodImplOptions.InternalCall)]
600 public extern override MethodBase DeclaringMethod {
601 [MethodImplAttribute(MethodImplOptions.InternalCall)]
606 private MethodBase CheckMethodSecurity (MethodBase mb)
608 if (!SecurityManager.SecurityEnabled || (mb == null))
611 // Sadly we have no way to know which kind of security action this is
612 // so we must do it the hard way. Actually this isn't so bad
613 // because we can skip the (mb.Attributes & MethodAttributes.HasSecurity)
614 // icall required (and do it ourselves)
616 // this (unlike the Invoke step) is _and stays_ a LinkDemand (caller)
617 return SecurityManager.ReflectedLinkDemandQuery (mb) ? mb : null;