/mono/mini/generics.cs
C# | 672 lines | 508 code | 146 blank | 18 comment | 72 complexity | e8c45645cc4badd2d23743346cd2b72e MD5 | raw file
Possible License(s): LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0, LGPL-2.1
- using System;
- using System.Collections.Generic;
- using System.Linq;
- class Tests {
- struct TestStruct {
- public int i;
- public int j;
- public TestStruct (int i, int j) {
- this.i = i;
- this.j = j;
- }
- }
- class Enumerator <T> : MyIEnumerator <T> {
- T MyIEnumerator<T>.Current {
- get {
- return default(T);
- }
- }
- bool MyIEnumerator<T>.MoveNext () {
- return true;
- }
- }
- class Comparer <T> : IComparer <T> {
- bool IComparer<T>.Compare (T x, T y) {
- return true;
- }
- }
- static int Main (string[] args)
- {
- return TestDriver.RunTests (typeof (Tests), args);
- }
- public static int test_1_nullable_unbox ()
- {
- return Unbox<int?> (1).Value;
- }
- public static int test_1_nullable_unbox_null ()
- {
- return Unbox<int?> (null).HasValue ? 0 : 1;
- }
- public static int test_1_nullable_box ()
- {
- return (int) Box<int?> (1);
- }
- public static int test_1_nullable_box_null ()
- {
- return Box<int?> (null) == null ? 1 : 0;
- }
- public static int test_1_isinst_nullable ()
- {
- object o = 1;
- return (o is int?) ? 1 : 0;
- }
- public static int test_1_nullable_unbox_vtype ()
- {
- return Unbox<TestStruct?> (new TestStruct (1, 2)).Value.i;
- }
- public static int test_1_nullable_unbox_null_vtype ()
- {
- return Unbox<TestStruct?> (null).HasValue ? 0 : 1;
- }
- public static int test_1_nullable_box_vtype ()
- {
- return ((TestStruct)(Box<TestStruct?> (new TestStruct (1, 2)))).i;
- }
- public static int test_1_nullable_box_null_vtype ()
- {
- return Box<TestStruct?> (null) == null ? 1 : 0;
- }
- public static int test_1_isinst_nullable_vtype ()
- {
- object o = new TestStruct (1, 2);
- return (o is TestStruct?) ? 1 : 0;
- }
- public static int test_0_nullable_normal_unbox ()
- {
- int? i = 5;
- object o = i;
- // This uses unbox instead of unbox_any
- int? j = (int?)o;
- if (j != 5)
- return 1;
- return 0;
- }
- public static void stelem_any<T> (T[] arr, T elem) {
- arr [0] = elem;
- }
- public static T ldelem_any<T> (T[] arr) {
- return arr [0];
- }
- public static int test_1_ldelem_stelem_any_int () {
- int[] arr = new int [3];
- stelem_any (arr, 1);
- return ldelem_any (arr);
- }
- public static T return_ref<T> (ref T t) {
- return t;
- }
- public static T ldelema_any<T> (T[] arr) {
- return return_ref<T> (ref arr [0]);
- }
- public static int test_0_ldelema () {
- string[] arr = new string [1];
- arr [0] = "Hello";
- if (ldelema_any <string> (arr) == "Hello")
- return 0;
- else
- return 1;
- }
- public static T[,] newarr_multi<T> () {
- return new T [1, 1];
- }
- public static int test_0_newarr_multi_dim () {
- return newarr_multi<string> ().GetType () == typeof (string[,]) ? 0 : 1;
- }
- interface ITest
- {
- void Foo<T> ();
- }
- public static int test_0_iface_call_null_bug_77442 () {
- ITest test = null;
- try {
- test.Foo<int> ();
- }
- catch (NullReferenceException) {
- return 0;
- }
-
- return 1;
- }
- public static int test_18_ldobj_stobj_generics () {
- GenericClass<int> t = new GenericClass <int> ();
- int i = 5;
- int j = 6;
- return t.ldobj_stobj (ref i, ref j) + i + j;
- }
- public static int test_5_ldelem_stelem_generics () {
- GenericClass<TestStruct> t = new GenericClass<TestStruct> ();
- TestStruct s = new TestStruct (5, 5);
- return t.ldelem_stelem (s).i;
- }
- public static int test_0_constrained_vtype_box () {
- GenericClass<TestStruct> t = new GenericClass<TestStruct> ();
- return t.toString (new TestStruct ()) == "Tests+TestStruct" ? 0 : 1;
- }
- public static int test_0_constrained_vtype () {
- GenericClass<int> t = new GenericClass<int> ();
- return t.toString (1234) == "1234" ? 0 : 1;
- }
- public static int test_0_constrained_reftype () {
- GenericClass<String> t = new GenericClass<String> ();
- return t.toString ("1234") == "1234" ? 0 : 1;
- }
- public static int test_0_box_brtrue_optimizations () {
- if (IsNull<int>(5))
- return 1;
- if (!IsNull<object>(null))
- return 1;
- return 0;
- }
- [Category ("!FULLAOT")]
- public static int test_0_generic_get_value_optimization_int () {
- int[] x = new int[] {100, 200};
- if (GenericClass<int>.Z (x, 0) != 100)
- return 2;
- if (GenericClass<int>.Z (x, 1) != 200)
- return 3;
- return 0;
- }
- public static int test_0_generic_get_value_optimization_vtype () {
- TestStruct[] arr = new TestStruct[] { new TestStruct (100, 200), new TestStruct (300, 400) };
- IEnumerator<TestStruct> enumerator = GenericClass<TestStruct>.Y (arr);
- TestStruct s;
- int sum = 0;
- while (enumerator.MoveNext ()) {
- s = enumerator.Current;
- sum += s.i + s.j;
- }
- if (sum != 1000)
- return 1;
- s = GenericClass<TestStruct>.Z (arr, 0);
- if (s.i != 100 || s.j != 200)
- return 2;
- s = GenericClass<TestStruct>.Z (arr, 1);
- if (s.i != 300 || s.j != 400)
- return 3;
- return 0;
- }
- public static int test_0_nullable_ldflda () {
- return GenericClass<string>.BIsAClazz == false ? 0 : 1;
- }
- public struct GenericStruct<T> {
- public T t;
- public GenericStruct (T t) {
- this.t = t;
- }
- }
- public class GenericClass<T> {
- public T t;
- public GenericClass (T t) {
- this.t = t;
- }
- public GenericClass () {
- }
- public T ldobj_stobj (ref T t1, ref T t2) {
- t1 = t2;
- T t = t1;
- return t;
- }
- public T ldelem_stelem (T t) {
- T[] arr = new T [10];
- arr [0] = t;
- return arr [0];
- }
- public String toString (T t) {
- return t.ToString ();
- }
- public static IEnumerator<T> Y (IEnumerable <T> x)
- {
- return x.GetEnumerator ();
- }
- public static T Z (IList<T> x, int index)
- {
- return x [index];
- }
- protected static T NullB = default(T);
- private static Nullable<bool> _BIsA = null;
- public static bool BIsAClazz {
- get {
- _BIsA = false;
- return _BIsA.Value;
- }
- }
- }
- public class MRO : MarshalByRefObject {
- public GenericStruct<int> struct_field;
- public GenericClass<int> class_field;
- }
- public static int test_0_ldfld_stfld_mro () {
- MRO m = new MRO ();
- GenericStruct<int> s = new GenericStruct<int> (5);
- // This generates stfld
- m.struct_field = s;
- // This generates ldflda
- if (m.struct_field.t != 5)
- return 1;
- // This generates ldfld
- GenericStruct<int> s2 = m.struct_field;
- if (s2.t != 5)
- return 2;
- if (m.struct_field.t != 5)
- return 3;
- m.class_field = new GenericClass<int> (5);
- if (m.class_field.t != 5)
- return 4;
- return 0;
- }
- // FIXME:
- [Category ("!FULLAOT")]
- public static int test_0_generic_virtual_call_on_vtype_unbox () {
- object o = new Object ();
- IFoo h = new Handler(o);
- if (h.Bar<object> () != o)
- return 1;
- else
- return 0;
- }
- public static int test_0_box_brtrue_opt () {
- Foo<int> f = new Foo<int> (5);
- f [123] = 5;
- return 0;
- }
- public static int test_0_box_brtrue_opt_regress_81102 () {
- if (new Foo<int>(5).ToString () == "null")
- return 0;
- else
- return 1;
- }
- struct S {
- public int i;
- }
- public static int test_0_ldloca_initobj_opt () {
- if (new Foo<S> (new S ()).get_default ().i != 0)
- return 1;
- if (new Foo<object> (null).get_default () != null)
- return 2;
- return 0;
- }
- public static int test_0_variance_reflection () {
- // covariance on IEnumerator
- if (!typeof (MyIEnumerator<object>).IsAssignableFrom (typeof (MyIEnumerator<string>)))
- return 1;
- // covariance on IEnumerator and covariance on arrays
- if (!typeof (MyIEnumerator<object>[]).IsAssignableFrom (typeof (MyIEnumerator<string>[])))
- return 2;
- // covariance and implemented interfaces
- if (!typeof (MyIEnumerator<object>).IsAssignableFrom (typeof (Enumerator<string>)))
- return 3;
- // contravariance on IComparer
- if (!typeof (IComparer<string>).IsAssignableFrom (typeof (IComparer<object>)))
- return 4;
- // contravariance on IComparer, contravariance on arrays
- if (!typeof (IComparer<string>[]).IsAssignableFrom (typeof (IComparer<object>[])))
- return 5;
- // contravariance and interface inheritance
- if (!typeof (IComparer<string>[]).IsAssignableFrom (typeof (IKeyComparer<object>[])))
- return 6;
- return 0;
- }
- public static int test_0_ldvirtftn_generic_method () {
- new Tests ().ldvirtftn<string> ();
- return the_type == typeof (string) ? 0 : 1;
- }
- public static int test_0_throw_dead_this () {
- new Foo<string> ("").throw_dead_this ();
- return 0;
- }
- struct S<T> {}
- public static int test_0_inline_infinite_polymorphic_recursion () {
- f<int>(0);
- return 0;
- }
- private static void f<T>(int i) {
- if(i==42) f<S<T>>(i);
- }
- // This cannot be made to work with full-aot, since there it is impossible to
- // statically determine that Foo<string>.Bar <int> is needed, the code only
- // references IFoo.Bar<int>
- [Category ("!FULLAOT")]
- public static int test_0_generic_virtual_on_interfaces () {
- Foo<string>.count1 = 0;
- Foo<string>.count2 = 0;
- Foo<string>.count3 = 0;
- IFoo f = new Foo<string> ("");
- for (int i = 0; i < 1000; ++i) {
- f.Bar <int> ();
- f.Bar <string> ();
- f.NonGeneric ();
- }
- if (Foo<string>.count1 != 1000)
- return 1;
- if (Foo<string>.count2 != 1000)
- return 2;
- if (Foo<string>.count3 != 1000)
- return 3;
- VirtualInterfaceCallFromGenericMethod<long> (f);
- return 0;
- }
- //repro for #505375
- [Category ("!FULLAOT")]
- public static int test_2_cprop_bug () {
- int idx = 0;
- int a = 1;
- var cmp = System.Collections.Generic.Comparer<int>.Default ;
- if (cmp.Compare (a, 0) > 0)
- a = 0;
- do { idx++; } while (cmp.Compare (idx - 1, a) == 0);
- return idx;
- }
- enum MyEnumUlong : ulong {
- Value_2 = 2
- }
- public static int test_0_regress_550964_constrained_enum_long () {
- MyEnumUlong a = MyEnumUlong.Value_2;
- MyEnumUlong b = MyEnumUlong.Value_2;
- return Pan (a, b) ? 0 : 1;
- }
- static bool Pan<T> (T a, T b)
- {
- return a.Equals (b);
- }
- public class XElement {
- public string Value {
- get; set;
- }
- }
- public static int test_0_fullaot_linq () {
- var allWords = new XElement [] { new XElement { Value = "one" } };
- var filteredWords = allWords.Where(kw => kw.Value.StartsWith("T"));
- return filteredWords.Count ();
- }
- public static int test_0_fullaot_comparer_t () {
- var l = new SortedList <TimeSpan, int> ();
- return l.Count;
- }
- static void enumerate<T> (IEnumerable<T> arr) {
- foreach (var o in arr)
- ;
- int c = ((ICollection<T>)arr).Count;
- }
- /* Test that treating arrays as generic collections works with full-aot */
- public static int test_0_fullaot_array_wrappers () {
- Tests[] arr = new Tests [10];
- enumerate<Tests> (arr);
- return 0;
- }
- static int cctor_count = 0;
- public abstract class Beta<TChanged>
- {
- static Beta()
- {
- cctor_count ++;
- }
- }
-
- public class Gamma<T> : Beta<T>
- {
- static Gamma()
- {
- }
- }
- // #519336
- public static int test_2_generic_class_init_gshared_ctor () {
- new Gamma<object>();
- new Gamma<string>();
- return cctor_count;
- }
- public static int test_0_marshalbyref_call_from_gshared_virt_elim () {
- /* Calling a virtual method from gshared code which is changed to a nonvirt call */
- Class1<object> o = new Class1<object> ();
- o.Do (new Class2<object> ());
- return 0;
- }
- public class Class1<T> {
- public virtual void Do (Class2<T> t) {
- t.Foo ();
- }
- }
- public interface IFace1<T> {
- void Foo ();
- }
- public class Class2<T> : MarshalByRefObject, IFace1<T> {
- public void Foo () {
- }
- }
- public static void VirtualInterfaceCallFromGenericMethod <T> (IFoo f) {
- f.Bar <T> ();
- }
- public static Type the_type;
- public void ldvirtftn<T> () {
- Foo <T> binding = new Foo <T> (default (T));
- binding.GenericEvent += event_handler;
- binding.fire ();
- }
- public virtual void event_handler<T> (Foo<T> sender) {
- the_type = typeof (T);
- }
- public interface IFoo {
- void NonGeneric ();
- object Bar<T>();
- }
- public class Foo<T1> : IFoo
- {
- public Foo(T1 t1)
- {
- m_t1 = t1;
- }
-
- public override string ToString()
- {
- return Bar(m_t1 == null ? "null" : "null");
- }
- public String Bar (String s) {
- return s;
- }
- public int this [T1 key] {
- set {
- if (key == null)
- throw new ArgumentNullException ("key");
- }
- }
- public void throw_dead_this () {
- try {
- new SomeClass().ThrowAnException();
- }
- catch {
- }
- }
- public T1 get_default () {
- return default (T1);
- }
-
- readonly T1 m_t1;
- public delegate void GenericEventHandler (Foo<T1> sender);
- public event GenericEventHandler GenericEvent;
- public void fire () {
- GenericEvent (this);
- }
- public static int count1, count2, count3;
- public void NonGeneric () {
- count3 ++;
- }
- public object Bar <T> () {
- if (typeof (T) == typeof (int))
- count1 ++;
- else if (typeof (T) == typeof (string))
- count2 ++;
- return null;
- }
- }
- public class SomeClass {
- public void ThrowAnException() {
- throw new Exception ("Something went wrong");
- }
- }
- struct Handler : IFoo {
- object o;
- public Handler(object o) {
- this.o = o;
- }
- public void NonGeneric () {
- }
- public object Bar<T>() {
- return o;
- }
- }
- static bool IsNull<T> (T t)
- {
- if (t == null)
- return true;
- else
- return false;
- }
- static object Box<T> (T t)
- {
- return t;
- }
-
- static T Unbox <T> (object o) {
- return (T) o;
- }
- }