2 using System.Collections.Generic;
10 public TestStruct (int i, int j) {
16 class Enumerator <T> : MyIEnumerator <T> {
17 T MyIEnumerator<T>.Current {
23 bool MyIEnumerator<T>.MoveNext () {
28 class Comparer <T> : IComparer <T> {
29 bool IComparer<T>.Compare (T x, T y) {
36 return TestDriver.RunTests (typeof (Tests));
39 public static int test_1_nullable_unbox ()
41 return Unbox<int?> (1).Value;
44 public static int test_1_nullable_unbox_null ()
46 return Unbox<int?> (null).HasValue ? 0 : 1;
49 public static int test_1_nullable_box ()
51 return (int) Box<int?> (1);
54 public static int test_1_nullable_box_null ()
56 return Box<int?> (null) == null ? 1 : 0;
59 public static int test_1_isinst_nullable ()
62 return (o is int?) ? 1 : 0;
65 public static int test_1_nullable_unbox_vtype ()
67 return Unbox<TestStruct?> (new TestStruct (1, 2)).Value.i;
70 public static int test_1_nullable_unbox_null_vtype ()
72 return Unbox<TestStruct?> (null).HasValue ? 0 : 1;
75 public static int test_1_nullable_box_vtype ()
77 return ((TestStruct)(Box<TestStruct?> (new TestStruct (1, 2)))).i;
80 public static int test_1_nullable_box_null_vtype ()
82 return Box<TestStruct?> (null) == null ? 1 : 0;
85 public static int test_1_isinst_nullable_vtype ()
87 object o = new TestStruct (1, 2);
88 return (o is TestStruct?) ? 1 : 0;
91 public static int test_0_nullable_normal_unbox ()
96 // This uses unbox instead of unbox_any
105 public static void stelem_any<T> (T[] arr, T elem) {
109 public static T ldelem_any<T> (T[] arr) {
113 public static int test_1_ldelem_stelem_any_int () {
114 int[] arr = new int [3];
117 return ldelem_any (arr);
120 public static T return_ref<T> (ref T t) {
124 public static T ldelema_any<T> (T[] arr) {
125 return return_ref<T> (ref arr [0]);
128 public static int test_0_ldelema () {
129 string[] arr = new string [1];
133 if (ldelema_any <string> (arr) == "Hello")
139 public static T[,] newarr_multi<T> () {
143 public static int test_0_newarr_multi_dim () {
144 return newarr_multi<string> ().GetType () == typeof (string[,]) ? 0 : 1;
152 public static int test_0_iface_call_null_bug_77442 () {
158 catch (NullReferenceException) {
165 public static int test_18_ldobj_stobj_generics () {
166 GenericClass<int> t = new GenericClass <int> ();
169 return t.ldobj_stobj (ref i, ref j) + i + j;
172 public static int test_5_ldelem_stelem_generics () {
173 GenericClass<TestStruct> t = new GenericClass<TestStruct> ();
175 TestStruct s = new TestStruct (5, 5);
176 return t.ldelem_stelem (s).i;
179 public static int test_0_constrained_vtype_box () {
180 GenericClass<TestStruct> t = new GenericClass<TestStruct> ();
182 return t.toString (new TestStruct ()) == "Tests+TestStruct" ? 0 : 1;
185 public static int test_0_constrained_vtype () {
186 GenericClass<int> t = new GenericClass<int> ();
188 return t.toString (1234) == "1234" ? 0 : 1;
191 public static int test_0_constrained_reftype () {
192 GenericClass<String> t = new GenericClass<String> ();
194 return t.toString ("1234") == "1234" ? 0 : 1;
197 public static int test_0_box_brtrue_optimizations () {
201 if (!IsNull<object>(null))
207 public static int test_0_generic_get_value_optimization_int () {
208 int[] x = new int[] {100, 200};
210 if (GenericClass<int>.Z (x, 0) != 100)
213 if (GenericClass<int>.Z (x, 1) != 200)
219 public static int test_0_generic_get_value_optimization_vtype () {
220 TestStruct[] arr = new TestStruct[] { new TestStruct (100, 200), new TestStruct (300, 400) };
221 IEnumerator<TestStruct> enumerator = GenericClass<TestStruct>.Y (arr);
224 while (enumerator.MoveNext ()) {
225 s = enumerator.Current;
232 s = GenericClass<TestStruct>.Z (arr, 0);
233 if (s.i != 100 || s.j != 200)
236 s = GenericClass<TestStruct>.Z (arr, 1);
237 if (s.i != 300 || s.j != 400)
243 public struct GenericStruct<T> {
246 public GenericStruct (T t) {
251 public class GenericClass<T> {
254 public GenericClass (T t) {
258 public GenericClass () {
261 public T ldobj_stobj (ref T t1, ref T t2) {
268 public T ldelem_stelem (T t) {
269 T[] arr = new T [10];
275 public String toString (T t) {
276 return t.ToString ();
279 public static IEnumerator<T> Y (IEnumerable <T> x)
281 return x.GetEnumerator ();
284 public static T Z (IList<T> x, int index)
290 public class MRO : MarshalByRefObject {
291 public GenericStruct<int> struct_field;
292 public GenericClass<int> class_field;
295 public static int test_0_ldfld_stfld_mro () {
297 GenericStruct<int> s = new GenericStruct<int> (5);
298 // This generates stfld
301 // This generates ldflda
302 if (m.struct_field.t != 5)
305 // This generates ldfld
306 GenericStruct<int> s2 = m.struct_field;
310 if (m.struct_field.t != 5)
313 m.class_field = new GenericClass<int> (5);
314 if (m.class_field.t != 5)
320 public static int test_0_generic_virtual_call_on_vtype_unbox () {
321 object o = new Object ();
322 IMyHandler h = new Handler(o);
324 if (h.Bar<object> () != o)
330 public static int test_0_box_brtrue_opt () {
331 Foo<int> f = new Foo<int> (5);
338 public static int test_0_box_brtrue_opt_regress_81102 () {
339 if (new Foo<int>(5).ToString () == "null")
349 public static int test_0_ldloca_initobj_opt () {
350 if (new Foo<S> (new S ()).get_default ().i != 0)
352 if (new Foo<object> (null).get_default () != null)
357 public static int test_0_variance_reflection () {
358 // covariance on IEnumerator
359 if (!typeof (MyIEnumerator<object>).IsAssignableFrom (typeof (MyIEnumerator<string>)))
361 // covariance on IEnumerator and covariance on arrays
362 if (!typeof (MyIEnumerator<object>[]).IsAssignableFrom (typeof (MyIEnumerator<string>[])))
364 // covariance and implemented interfaces
365 if (!typeof (MyIEnumerator<object>).IsAssignableFrom (typeof (Enumerator<string>)))
368 // contravariance on IComparer
369 if (!typeof (IComparer<string>).IsAssignableFrom (typeof (IComparer<object>)))
371 // contravariance on IComparer, contravariance on arrays
372 if (!typeof (IComparer<string>[]).IsAssignableFrom (typeof (IComparer<object>[])))
374 // contravariance and interface inheritance
375 if (!typeof (IComparer<string>[]).IsAssignableFrom (typeof (IKeyComparer<object>[])))
380 public static int test_0_ldvirtftn_generic_method () {
381 new Tests ().ldvirtftn<string> ();
383 return the_type == typeof (string) ? 0 : 1;
386 public static Type the_type;
388 public void ldvirtftn<T> () {
389 Foo <T> binding = new Foo <T> (default (T));
391 binding.GenericEvent += event_handler;
395 public virtual void event_handler<T> (Foo<T> sender) {
396 the_type = typeof (T);
406 public override string ToString()
408 return Bar(m_t1 == null ? "null" : "null");
411 public String Bar (String s) {
415 public int this [T1 key] {
418 throw new ArgumentNullException ("key");
422 public T1 get_default () {
428 public delegate void GenericEventHandler (Foo<T1> sender);
430 public event GenericEventHandler GenericEvent;
432 public void fire () {
438 public interface IMyHandler {
442 struct Handler : IMyHandler {
445 public Handler(object o) {
449 public object Bar<T>() {
454 static bool IsNull<T> (T t)
462 static object Box<T> (T t)
467 static T Unbox <T> (object o) {