blob: e1e54267b8e7f454420a630b289282625daf0a98 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// Compiler options: -warnaserror
using System;
enum E { Item };
public interface IFoo<T>
{ }
public class Foo<T>
{
public static bool Test (T x)
{
return x is IFoo<T>;
}
public static bool Test ()
{
T t = default (T);
return t is int;
}
public static bool TestB ()
{
T t = default (T);
return t is int?;
}
}
class Y<T> where T : struct
{
public bool Foo ()
{
object o = null;
return o is System.Nullable <T>;
}
}
class X
{
public static bool TestA (object o)
{
return o is int?;
}
public static bool TestB<T> (T o)
{
return o is int[];
}
public static int TestC ()
{
int? i = null;
if (i is int) {
return (int) i;
}
return 3;
}
static bool Check1 (E? e)
{
return e is Enum;
}
static bool Check2<T> (E e) where T : struct
{
return e is T;
}
public static int Main ()
{
if (Foo<int>.Test (3))
return 1;
if (!Foo<int>.Test())
return 2;
// False expected int? != null
if (Foo<int?>.TestB())
return 3;
int? i = 0;
if (!TestA(i))
return 4;
int[] a = new int[0];
if (!TestB(a))
return 5;
if (TestC () != 3)
return 6;
if (Check1 (null))
return 7;
if (!Check1 (E.Item))
return 8;
if (Check2<int> (E.Item))
return 9;
Console.WriteLine ("OK");
return 0;
}
}
|
