2 // System.Reflection.MethodInfo Test Cases
5 // Zoltan Varga (vargaz@gmail.com)
6 // Aleksey Kliger (aleksey@xamarin.com)
8 // (c) 2003 Ximian, Inc. (http://www.ximian.com)
9 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
10 // Copyright (C) 2015 Xamarin, Inc. (http://www.xamarin.com)
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using NUnit.Framework;
34 using System.Threading;
35 using System.Reflection;
36 #if !MONOTOUCH && !FULL_AOT_RUNTIME
37 using System.Reflection.Emit;
39 using System.Runtime.InteropServices;
40 using System.Runtime.CompilerServices;
42 using System.Collections.Generic;
45 // Disable expected warning
46 #pragma warning disable 169
47 public struct MethodInfoTestStruct {
50 #pragma warning restore 169
52 namespace MonoTests.System.Reflection
55 public class MethodInfoTest
57 #if MONOTOUCH || FULL_AOT_RUNTIME
58 // use an existing symbol - so we can build without dlsym. It does not matter that the signature does not match for the test
59 [DllImport ("libc", EntryPoint="readlink", CharSet=CharSet.Unicode, ExactSpelling=false, PreserveSig=true, SetLastError=true, BestFitMapping=true, ThrowOnUnmappableChar=true)]
61 [DllImport ("libfoo", EntryPoint="foo", CharSet=CharSet.Unicode, ExactSpelling=false, PreserveSig=true, SetLastError=true, BestFitMapping=true, ThrowOnUnmappableChar=true)]
63 public static extern void dllImportMethod ();
64 [MethodImplAttribute(MethodImplOptions.PreserveSig)]
65 public void preserveSigMethod ()
69 [MethodImplAttribute(MethodImplOptions.Synchronized)]
70 public void synchronizedMethod ()
74 public interface InterfaceTest
80 public void IsDefined_AttributeType_Null ()
82 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("foo");
85 mi.IsDefined ((Type) null, false);
87 } catch (ArgumentNullException ex) {
88 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
89 Assert.IsNull (ex.InnerException, "#3");
90 Assert.IsNotNull (ex.Message, "#4");
91 Assert.IsNotNull (ex.ParamName, "#5");
92 Assert.AreEqual ("attributeType", ex.ParamName, "#6");
97 public void TestInvokeByRefReturnMethod ()
100 MethodInfo m = typeof (int[]).GetMethod ("Address");
101 m.Invoke (new int[1], new object[] { 0 });
103 } catch (NotSupportedException e) {
104 Assert.AreEqual (typeof (NotSupportedException), e.GetType (), "#2");
105 Assert.IsNull (e.InnerException, "#3");
106 Assert.IsNotNull (e.Message, "#4");
111 public void PseudoCustomAttributes ()
113 Type t = typeof (MethodInfoTest);
115 DllImportAttribute attr = (DllImportAttribute)((t.GetMethod ("dllImportMethod").GetCustomAttributes (typeof (DllImportAttribute), true)) [0]);
117 Assert.AreEqual (CallingConvention.Winapi, attr.CallingConvention, "#1");
118 #if MONOTOUCH || FULL_AOT_RUNTIME
119 Assert.AreEqual ("readlink", attr.EntryPoint, "#2");
120 Assert.AreEqual ("libc", attr.Value, "#3");
122 Assert.AreEqual ("foo", attr.EntryPoint, "#2");
123 Assert.AreEqual ("libfoo", attr.Value, "#3");
125 Assert.AreEqual (CharSet.Unicode, attr.CharSet, "#4");
126 Assert.AreEqual (false, attr.ExactSpelling, "#5");
127 Assert.AreEqual (true, attr.PreserveSig, "#6");
128 Assert.AreEqual (true, attr.SetLastError, "#7");
129 Assert.AreEqual (true, attr.BestFitMapping, "#8");
130 Assert.AreEqual (true, attr.ThrowOnUnmappableChar, "#9");
132 PreserveSigAttribute attr2 = (PreserveSigAttribute)((t.GetMethod ("preserveSigMethod").GetCustomAttributes (true)) [0]);
134 // This doesn't work under MS.NET
136 MethodImplAttribute attr3 = (MethodImplAttribute)((t.GetMethod ("synchronizedMethod").GetCustomAttributes (true)) [0]);
140 [return: MarshalAs (UnmanagedType.Interface)]
141 public void ReturnTypeMarshalAs ()
146 public void ReturnTypePseudoCustomAttributes ()
148 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("ReturnTypeMarshalAs");
150 Assert.IsTrue (mi.ReturnTypeCustomAttributes.GetCustomAttributes (typeof (MarshalAsAttribute), true).Length == 1);
153 public static int foo (int i, int j)
159 public void StaticInvokeWithObject ()
161 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("foo");
163 mi.Invoke (new Object (), new object [] { 1, 2 });
167 public void ByRefInvoke ()
169 MethodInfo met = typeof(MethodInfoTest).GetMethod ("ByRefTest");
170 object[] parms = new object[] {1};
171 met.Invoke (null, parms);
172 Assert.AreEqual (2, parms[0]);
175 public static void ByRefTest (ref int a1)
181 static int byref_arg;
183 public static void ByrefVtype (ref int i) {
189 public void ByrefVtypeInvoke ()
191 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("ByrefVtype");
194 object[] args = new object [] { o };
195 mi.Invoke (null, args);
196 Assert.AreEqual (1, byref_arg, "#A1");
197 Assert.AreEqual (1, o, "#A2");
198 Assert.AreEqual (5, args[0], "#A3");
201 mi.Invoke (null, args);
202 Assert.AreEqual (0, byref_arg, "#B1");
203 Assert.AreEqual (5, args[0], "#B2");
206 public void HeyHey (out string out1, ref DateTime ref1)
211 public void SignatureTest (__arglist)
215 public static unsafe int* PtrFunc (int* a)
220 #if MONO_FEATURE_THREAD_ABORT
222 public void InvokeThreadAbort ()
224 MethodInfo method = typeof (MethodInfoTest).GetMethod ("AbortIt");
226 method.Invoke (null, new object [0]);
229 catch (ThreadAbortException ex) {
230 Thread.ResetAbort ();
231 Assert.IsNull (ex.InnerException, "#2");
235 public static void AbortIt ()
237 Thread.CurrentThread.Abort ();
242 public void ToStringByRef ()
244 Assert.AreEqual ("Void HeyHey(System.String ByRef, System.DateTime ByRef)",
245 this.GetType ().GetMethod ("HeyHey").ToString ());
249 public void ToStringArgList ()
251 Assert.AreEqual ("Void SignatureTest(...)",
252 this.GetType ().GetMethod ("SignatureTest").ToString ());
256 public void ToStringWithPointerSignatures () //bug #409583
258 Assert.AreEqual ("Int32* PtrFunc(Int32*)", this.GetType ().GetMethod ("PtrFunc").ToString ());
261 public struct SimpleStruct
266 public static unsafe SimpleStruct* PtrFunc2 (SimpleStruct* a, A.B.C.MethodInfoTestStruct *b)
268 return (SimpleStruct*) 0;
272 public void ToStringWithPointerSignaturesToNonPrimitiveType ()
274 Assert.AreEqual ("SimpleStruct* PtrFunc2(SimpleStruct*, A.B.C.MethodInfoTestStruct*)",
275 this.GetType ().GetMethod ("PtrFunc2").ToString ());
278 public void ToStringGenericMethod ()
280 Assert.AreEqual ("System.Collections.ObjectModel.ReadOnlyCollection`1[T] AsReadOnly[T](T[])",
281 typeof (Array).GetMethod ("AsReadOnly").ToString ());
284 class GBD_A { public virtual void f () {} }
285 class GBD_B : GBD_A { public override void f () {} }
286 class GBD_C : GBD_B { public override void f () {} }
287 class GBD_D : GBD_C { public new virtual void f () {} }
288 class GBD_E : GBD_D { public override void f () {} }
290 class GBD_E2 : GBD_D { }
291 class GBD_F : GBD_E { }
295 public void GetBaseDefinition ()
297 Assert.AreEqual (typeof (GBD_A), typeof (GBD_C).GetMethod ("f").GetBaseDefinition ().DeclaringType);
298 Assert.AreEqual (typeof (GBD_A), typeof (GBD_C).GetMethod ("f").GetBaseDefinition ().ReflectedType, "#1r");
300 Assert.AreEqual (typeof (GBD_D), typeof (GBD_D).GetMethod ("f").GetBaseDefinition ().DeclaringType);
301 Assert.AreEqual (typeof (GBD_D), typeof (GBD_D).GetMethod ("f").GetBaseDefinition ().ReflectedType, "#2r");
303 Assert.AreEqual (typeof (GBD_D), typeof (GBD_E).GetMethod ("f").GetBaseDefinition ().DeclaringType);
304 Assert.AreEqual (typeof (GBD_D), typeof (GBD_E).GetMethod ("f").GetBaseDefinition ().ReflectedType, "#3r");
306 Assert.AreEqual (typeof (GBD_D), typeof (GBD_E2).GetMethod ("f").GetBaseDefinition ().DeclaringType, "#4");
307 Assert.AreEqual (typeof (GBD_D), typeof (GBD_E2).GetMethod ("f").GetBaseDefinition ().ReflectedType, "#4r");
309 Assert.AreEqual (typeof (GBD_D), typeof (GBD_F).GetMethod ("f").GetBaseDefinition ().DeclaringType, "#5");
310 Assert.AreEqual (typeof (GBD_D), typeof (GBD_F).GetMethod ("f").GetBaseDefinition ().ReflectedType, "#5r");
314 class GenericBase<T,H> {
315 public virtual void f2 () { }
318 class GenericMid<T, U> : GenericBase<T, Action<U>> {
319 public virtual T f1 () { return default (T); }
322 class GenericChild<T> : GenericMid<T, int> {
323 public override T f1 () { return default (T); }
324 public override void f2 () { }
327 class DerivedFromGenericBase : GenericBase<int, int> {
331 public void GetBaseDefinition_OpenConstructedBaseType () // 36305
333 var t = typeof (GenericChild<string>);
335 var mi1 = t.GetMethod ("f1");
336 var mi1_base = mi1.GetBaseDefinition ();
338 Assert.AreEqual (typeof (GenericMid<string, int>), mi1_base.DeclaringType, "#1");
340 var mi2 = t.GetMethod ("f2");
341 var mi2_base = mi2.GetBaseDefinition ();
343 Assert.AreEqual (typeof (GenericBase<string, Action<int>>), mi2_base.DeclaringType, "#2");
346 class TestInheritedMethodA {
347 private void TestMethod ()
351 public void TestMethod2 ()
356 class TestInheritedMethodB : TestInheritedMethodA {
360 public void InheritanceTestGetMethodTest ()
362 MethodInfo inheritedMethod = typeof(TestInheritedMethodB).GetMethod("TestMethod", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
363 MethodInfo baseMethod = typeof(TestInheritedMethodB).GetMethod("TestMethod", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
364 Assert.AreSame (inheritedMethod, baseMethod);
366 MethodInfo inheritedMethod2 = typeof(TestInheritedMethodB).GetMethod("TestMethod2", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
367 MethodInfo baseMethod2 = typeof(TestInheritedMethodB).GetMethod("TestMethod2", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
368 Assert.AreSame (inheritedMethod, baseMethod);
372 public void GetMethodBody_Abstract ()
374 MethodBody mb = typeof (InterfaceTest).GetMethod ("Clone").GetMethodBody ();
379 public void GetMethodBody_Runtime ()
381 MethodBody mb = typeof (AsyncCallback).GetMethod ("Invoke").GetMethodBody ();
386 public void GetMethodBody_Pinvoke ()
388 MethodBody mb = typeof (MethodInfoTest).GetMethod ("dllImportMethod").GetMethodBody ();
393 public void GetMethodBody_Icall ()
395 foreach (MethodInfo mi in typeof (object).GetMethods (BindingFlags.Public|BindingFlags.NonPublic|BindingFlags.Instance))
396 if ((mi.GetMethodImplementationFlags () & MethodImplAttributes.InternalCall) != 0) {
397 MethodBody mb = mi.GetMethodBody ();
402 public static void locals_method ()
404 byte[] b = new byte [10];
407 /* This generates a pinned local */
408 fixed (byte *p = &b [0]) {
414 public void GetMethodBody ()
416 #if (MONOTOUCH || FULL_AOT_RUNTIME) && !DEBUG
417 Assert.Ignore ("Release app (on devices) are stripped of (managed) IL so this test would fail");
419 MethodBody mb = typeof (MethodInfoTest).GetMethod ("locals_method").GetMethodBody ();
421 Assert.IsTrue (mb.InitLocals, "#1");
422 Assert.IsTrue (mb.LocalSignatureMetadataToken > 0, "#2");
424 IList<LocalVariableInfo> locals = mb.LocalVariables;
426 bool foundPinnedBytePointer = false;
428 foreach (LocalVariableInfo lvi in locals) {
429 if (lvi.LocalType == typeof (byte[]))
430 // This is optimized out by CSC in .NET 4.6
431 Assert.IsFalse (lvi.IsPinned, "#3-1");
433 if (/* mcs */ lvi.LocalType == typeof (byte*) || /* csc */ lvi.LocalType == typeof (byte).MakeByRefType ()) {
434 foundPinnedBytePointer = true;
435 Assert.IsTrue (lvi.IsPinned, "#3-2");
439 Assert.IsTrue (foundPinnedBytePointer, "#4");
442 public int return_parameter_test ()
448 public void GetMethodFromHandle_Generic ()
450 MethodHandleTest<int> test = new MethodHandleTest<int> ();
451 RuntimeMethodHandle mh = test.GetType ().GetProperty ("MyList")
452 .GetGetMethod ().MethodHandle;
453 MethodBase mb = MethodInfo.GetMethodFromHandle (mh,
454 typeof (MethodHandleTest<int>).TypeHandle);
455 Assert.IsNotNull (mb, "#1");
456 List<int> list = (List<int>) mb.Invoke (test, null);
457 Assert.IsNotNull (list, "#2");
458 Assert.AreEqual (1, list.Count, "#3");
462 public void ReturnParameter ()
464 ParameterInfo pi = typeof (MethodInfoTest).GetMethod ("return_parameter_test").ReturnParameter;
465 Assert.AreEqual (typeof (int), pi.ParameterType, "#1");
466 Assert.AreEqual (-1, pi.Position, "#2");
467 // MS always return false here
468 //Assert.IsTrue (pi.IsRetval, "#3");
472 public void MethodInfoModule ()
474 Type type = typeof (MethodInfoTest);
475 MethodInfo me = type.GetMethod ("return_parameter_test");
477 Assert.AreEqual (type.Module, me.Module);
481 public void InvokeOnRefOnlyAssembly ()
483 Assembly a = Assembly.ReflectionOnlyLoad (typeof (MethodInfoTest).Assembly.FullName);
484 Type t = a.GetType (typeof (RefOnlyMethodClass).FullName);
485 MethodInfo m = t.GetMethod ("RefOnlyMethod", BindingFlags.Static | BindingFlags.NonPublic);
487 m.Invoke (null, new object [0]);
489 } catch (InvalidOperationException ex) {
490 // The requested operation is invalid in the
491 // ReflectionOnly context
492 Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#2");
493 Assert.IsNull (ex.InnerException, "#3");
494 Assert.IsNotNull (ex.Message, "#4");
499 [ExpectedException (typeof (TargetInvocationException))]
500 public void InvokeInvalidOpExceptionThrow () {
501 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("ThrowMethod");
502 mi.Invoke(null, null);
505 public static void ThrowMethod () {
506 throw new InvalidOperationException ();
510 public void InvokeGenericVtype ()
512 KeyValuePair<string, uint> kvp = new KeyValuePair<string, uint> ("a", 21);
513 Type type = kvp.GetType ();
514 Type [] arguments = type.GetGenericArguments ();
515 MethodInfo method = typeof (MethodInfoTest).GetMethod ("Go");
516 MethodInfo generic_method = method.MakeGenericMethod (arguments);
517 kvp = (KeyValuePair<string, uint>)generic_method.Invoke (null, new object [] { kvp });
519 Assert.AreEqual ("a", kvp.Key, "#1");
520 Assert.AreEqual (21, kvp.Value, "#2");
523 public static KeyValuePair<T1, T2> Go <T1, T2> (KeyValuePair <T1, T2> kvp)
529 public void InvokeGenericInst ()
531 List<string> str = null;
533 object [] methodArgs = new object [] { str };
534 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("GenericRefMethod");
535 mi.Invoke (null, methodArgs);
536 Assert.IsNotNull (methodArgs [0], "#A1");
537 Assert.IsNull (str, "#A2");
538 Assert.IsTrue (methodArgs [0] is List<string>, "#A3");
540 List<string> refStr = methodArgs [0] as List<string>;
541 Assert.IsNotNull (refStr, "#B1");
542 Assert.AreEqual (1, refStr.Count, "#B2");
543 Assert.AreEqual ("test", refStr [0], "#B3");
546 public static void GenericRefMethod (ref List<string> strArg)
548 strArg = new List<string> ();
552 public void MakeGenericMethodArgsMismatchFoo<T> ()
557 public void MakeGenericMethodArgsMismatch ()
559 MethodInfo gmi = this.GetType ().GetMethod (
560 "MakeGenericMethodArgsMismatchFoo");
562 gmi.MakeGenericMethod ();
564 } catch (ArgumentException ex) {
565 // The type or method has 1 generic parameter(s),
566 // but 0 generic argument(s) were provided. A
567 // generic argument must be provided for each
569 Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
570 Assert.IsNull (ex.InnerException, "#3");
571 Assert.IsNotNull (ex.Message, "#4");
572 Assert.IsNull (ex.ParamName, "#5");
576 public void SimpleGenericMethod<TFoo, TBar> () {}
579 public void MakeGenericMethodWithNullArray ()
581 MethodInfo gmi = this.GetType ().GetMethod ("SimpleGenericMethod");
583 gmi.MakeGenericMethod ((Type []) null);
585 } catch (ArgumentNullException ex) {
586 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
587 Assert.IsNull (ex.InnerException, "#3");
588 Assert.IsNotNull (ex.Message, "#4");
589 Assert.AreEqual ("methodInstantiation", ex.ParamName, "#5");
594 public void MakeGenericMethodWithNullValueInTypesArray ()
596 MethodInfo gmi = this.GetType ().GetMethod ("SimpleGenericMethod");
598 gmi.MakeGenericMethod (new Type [] { typeof (int), null });
600 } catch (ArgumentNullException ex) {
601 Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
602 Assert.IsNull (ex.InnerException, "#3");
603 Assert.IsNotNull (ex.Message, "#4");
604 Assert.IsNull (ex.ParamName, "#5");
609 public void MakeGenericMethodWithNonGenericMethodDefinitionMethod ()
611 MethodInfo gmi = this.GetType ().GetMethod ("SimpleGenericMethod");
612 MethodInfo inst = gmi.MakeGenericMethod (typeof (int), typeof (double));
614 inst.MakeGenericMethod (typeof (int), typeof (double));
616 } catch (InvalidOperationException ex) {
619 #if !MONOTOUCH && !FULL_AOT_RUNTIME
620 public TFoo SimpleGenericMethod2<TFoo, TBar> () { return default (TFoo); }
621 /*Test for the uggly broken behavior of SRE.*/
623 public void MakeGenericMethodWithSreTypeResultsInStupidMethodInfo ()
625 AssemblyName assemblyName = new AssemblyName ();
626 assemblyName.Name = "MonoTests.System.Reflection.Emit.MethodInfoTest";
627 AssemblyBuilder assembly = Thread.GetDomain ().DefineDynamicAssembly (assemblyName, AssemblyBuilderAccess.RunAndSave, ".");
628 ModuleBuilder module = assembly.DefineDynamicModule ("module1", "tst.dll");
629 TypeBuilder tb = module.DefineType ("Test", TypeAttributes.Public);
631 MethodInfo gmi = this.GetType ().GetMethod ("SimpleGenericMethod2");
632 MethodInfo ins = gmi.MakeGenericMethod (typeof (int), tb);
634 Assert.AreSame (tb, ins.GetGenericArguments () [1], "#1");
635 /*broken ReturnType*/
636 Assert.AreSame (gmi.GetGenericArguments () [0], ins.ReturnType, "#2");
639 public static int? pass_nullable (int? i)
645 public void NullableTests ()
647 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("pass_nullable");
648 Assert.AreEqual (102, mi.Invoke (null, new object [] { 102 }), "#1");
649 Assert.AreEqual (null, mi.Invoke (null, new object [] { null }), "#2");
651 // Test conversion of vtype to a nullable type for the this argument
652 PropertyInfo pi = typeof (Nullable <int>).GetProperty ("HasValue");
653 Assert.AreEqual (true, pi.GetGetMethod ().Invoke (10, null));
654 PropertyInfo pi2 = typeof (Nullable <int>).GetProperty ("Value");
655 Assert.AreEqual (10, pi2.GetGetMethod ().Invoke (10, null));
658 public static void foo_generic<T> ()
663 public void IsGenericMethod ()
665 MethodInfo mi = typeof (MethodInfoTest).GetMethod ("foo_generic");
666 Assert.AreEqual (true, mi.IsGenericMethod, "#1");
667 MethodInfo mi2 = mi.MakeGenericMethod (new Type[] { typeof (int) });
668 Assert.AreEqual (true, mi2.IsGenericMethod, "#2");
669 MethodInfo mi3 = typeof (GenericHelper<int>).GetMethod ("Test");
670 Assert.AreEqual (false, mi3.IsGenericMethod, "#3");
675 public static void Foo<T2> (T2 i)
679 public static void Bar ()
685 public static void Baz ()
692 public void ContainsGenericParameters ()
694 // Non-generic method in open generic type
695 Assert.IsTrue (typeof (A<int>).GetGenericTypeDefinition ().GetMethod ("Bar").ContainsGenericParameters);
696 // open generic method in closed generic type
697 Assert.IsTrue (typeof (A<int>).GetMethod ("Foo").ContainsGenericParameters);
698 // non-generic method in closed generic type
699 Assert.IsFalse (typeof (A<int>).GetMethod ("Bar").ContainsGenericParameters);
700 // closed generic method in closed generic type
701 Assert.IsFalse (typeof (A<int>).GetMethod ("Foo").MakeGenericMethod (new Type [] { typeof (int) }).ContainsGenericParameters);
702 // non-generic method in non-generic nested type of closed generic type
703 Assert.IsFalse (typeof (A<int>.B).GetMethod ("Baz").ContainsGenericParameters);
704 // non-generic method in non-generic nested type of open generic type
705 Assert.IsTrue (typeof (A<int>.B).GetGenericTypeDefinition ().GetMethod ("Baz").ContainsGenericParameters);
709 public void IsGenericMethodDefinition ()
711 MethodInfo m1 = typeof (A<>).GetMethod ("Foo");
712 Assert.IsTrue (m1.IsGenericMethod, "#A1");
713 Assert.IsTrue (m1.IsGenericMethodDefinition, "#A2");
715 MethodInfo m2 = typeof (A<int>).GetMethod ("Foo");
716 Assert.IsTrue (m2.IsGenericMethod, "#B1");
717 Assert.IsTrue (m2.IsGenericMethodDefinition, "#B2");
719 MethodInfo m3 = m2.MakeGenericMethod (typeof (int));
720 Assert.IsTrue (m3.IsGenericMethod, "#C1");
721 Assert.IsFalse (m3.IsGenericMethodDefinition, "#C2");
725 public void GetGenericMethodDefinition ()
727 MethodInfo mi1 = typeof (MyList<>).GetMethod ("ConvertAll");
728 MethodInfo mi2 = typeof (MyList<int>).GetMethod ("ConvertAll");
730 Assert.AreEqual ("MonoTests.System.Reflection.MethodInfoTest+Foo`2[T,TOutput]",
731 mi1.GetParameters () [0].ParameterType.ToString (), "#A1");
732 Assert.AreEqual ("MonoTests.System.Reflection.MethodInfoTest+Foo`2[System.Int32,TOutput]",
733 mi2.GetParameters () [0].ParameterType.ToString (), "#A2");
734 Assert.IsTrue (mi1.IsGenericMethod, "#A3");
735 Assert.IsTrue (mi1.IsGenericMethodDefinition, "#A4");
736 Assert.IsTrue (mi2.IsGenericMethod, "#A5");
737 Assert.IsTrue (mi2.IsGenericMethodDefinition, "#A6");
739 MethodInfo mi3 = mi2.GetGenericMethodDefinition ();
741 Assert.IsTrue (mi3.IsGenericMethod, "#B1");
742 Assert.IsTrue (mi3.IsGenericMethodDefinition, "#B2");
743 Assert.AreSame (mi2, mi3, "#B3");
745 MethodInfo mi4 = mi2.MakeGenericMethod (typeof (short));
746 Assert.IsTrue (mi4.IsGenericMethod, "#C1");
747 Assert.IsFalse (mi4.IsGenericMethodDefinition, "#C2");
748 Assert.AreSame (mi2, mi4.GetGenericMethodDefinition (), "#C3");
751 public void TestMethod123(int a, int b) {}
754 public void GetParametersDontReturnInternedArray ()
756 var method = typeof (MethodInfoTest).GetMethod ("TestMethod123");
757 var parms = method.GetParameters ();
758 Assert.AreNotSame (parms, method.GetParameters (), "#1");
761 Assert.IsNotNull (method.GetParameters () [0], "#2");
765 public void Bug354757 ()
767 MethodInfo gmd = (typeof (MyList <int>)).GetMethod ("ConvertAll");
768 MethodInfo oi = gmd.MakeGenericMethod (gmd.GetGenericArguments ());
769 Assert.AreSame (gmd, oi);
773 [ExpectedException (typeof (ArgumentException))]
775 [Category ("NotWorking")] // #10552
777 public void MakeGenericMethodRespectConstraints ()
779 var m = typeof (MethodInfoTest).GetMethod ("TestMethod");
780 m.MakeGenericMethod (typeof (Type));
783 public void TestMethod <T> () where T : Exception
787 public class MyList<T>
789 public TOutput ConvertAll<TOutput> (Foo<T,TOutput> arg)
791 return default (TOutput);
793 public T ConvertAll2 (MyList<T> arg)
799 public class Foo<T,TOutput>
803 class GenericHelper<T>
805 public void Test (T t)
809 interface IMethodInvoke<out T>
814 class MethodInvoke : IMethodInvoke<string>
816 public string Test ()
818 return "MethodInvoke";
823 public void GetInterfaceMapWorksWithVariantIfaces ()
825 var m0 = typeof (IMethodInvoke<object>).GetMethod ("Test");
826 var m1 = typeof (IMethodInvoke<string>).GetMethod ("Test");
827 var obj = new MethodInvoke ();
829 Assert.AreEqual ("MethodInvoke", m0.Invoke (obj, new Object [0]));
830 Assert.AreEqual ("MethodInvoke", m1.Invoke (obj, new Object [0]));
834 public int? Bug12856 ()
840 public void MethodToStringShouldPrintFullNameOfGenericStructs ()
842 var m = GetType ().GetMethod ("Bug12856");
843 Assert.AreEqual ("System.Nullable`1[System.Int32] Bug12856()", m.ToString (), "#1");
847 public void GetReflectedType () // #12205
849 // public method declared in base type, queried from a derived type
850 MethodInfo mi = typeof (TestInheritedMethodB).GetMethod ("TestMethod2");
851 Assert.AreEqual (mi.ReflectedType, typeof (TestInheritedMethodB), "#1");
853 // public method declared in a generic class,
854 // queried from a non-generic class derived
855 // from an instantiation of the generic class.
856 mi = typeof (DerivedFromGenericBase).GetMethod ("f2");
857 Assert.AreEqual (mi.ReflectedType, typeof (DerivedFromGenericBase), "#2");
859 // public method declared in a generic class,
860 // queried from the generic type defintion of
861 // a generic derived class.
862 mi = typeof (GenericMid<,>).GetMethod ("f2");
863 Assert.AreEqual (mi.ReflectedType, typeof (GenericMid<,>), "#3");
865 // public method declared in a generic class,
866 // queried from an instantiation of a generic
868 mi = typeof (GenericMid<int,int>).GetMethod ("f2");
869 Assert.AreEqual (mi.ReflectedType, typeof (GenericMid<int,int>), "#4");
873 #if !MONOTOUCH && !FULL_AOT_RUNTIME
874 class GenericClass<T>
876 public void Method ()
879 Console.WriteLine(lv);
882 public void Method2<K> (T a0, K a1)
886 Console.WriteLine (var0);
887 Console.WriteLine (var1);
892 public void TestLocalVariableTypes ()
894 var typeofT = typeof (GenericClass<>).GetGenericArguments () [0];
895 var typeofK = typeof (GenericClass<>).GetMethod ("Method2").GetGenericArguments () [0];
897 var type = typeof (GenericClass<>).GetMethod("Method").GetMethodBody().LocalVariables[0].LocalType;
898 Assert.AreEqual (typeofT, type);
899 Assert.AreEqual (typeof (GenericClass<>), type.DeclaringType);
901 bool foundTypeOfK = false;
902 bool foundExpectedType = false;
904 MethodBody mb = typeof (GenericClass<>).GetMethod("Method2").GetMethodBody();
905 foreach (LocalVariableInfo lvi in mb.LocalVariables) {
906 if (lvi.LocalType == typeofK) {
908 Assert.AreEqual (typeof (GenericClass<>), lvi.LocalType.DeclaringType, "#1-1");
909 } else if (lvi.LocalType == typeofT) {
910 foundExpectedType = true;
911 Assert.AreEqual (typeof (GenericClass<>), lvi.LocalType.DeclaringType, "#1-2");
915 Assert.IsTrue (foundTypeOfK, "#1-3");
916 if (mb.LocalVariables.Count < 2)
917 Assert.Ignore ("Code built in release mode - 'T var0' optmized out");
919 Assert.IsTrue (foundExpectedType, "#1-4");
921 foundTypeOfK = false;
922 foundExpectedType = false;
923 mb = typeof (GenericClass<int>).GetMethod("Method2").GetMethodBody();
924 foreach (LocalVariableInfo lvi in mb.LocalVariables) {
925 if (lvi.LocalType == typeofK) {
927 Assert.AreEqual (typeof (GenericClass<>), lvi.LocalType.DeclaringType, "#2-1");
928 } else if (lvi.LocalType == typeof (int)) {
929 foundExpectedType = true;
933 Assert.IsTrue (foundTypeOfK, "#2-3");
934 if (mb.LocalVariables.Count < 2)
935 Assert.Ignore ("Code built in release mode - 'int var0' optmized out");
937 Assert.IsTrue (foundExpectedType, "#2-4");
943 class RefOnlyMethodClass
945 // Helper static method
946 static void RefOnlyMethod ()
951 public class MethodHandleTest<T>
953 private List<T> _myList = new List<T> ();
955 public MethodHandleTest ()
957 _myList.Add (default (T));
960 public List<T> MyList {
961 get { return _myList; }
962 set { _myList = value; }