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using System;
using System.Threading.Tasks;
class Test
{
static async Task<int> YieldValue (int a)
{
await Task.Yield ();
return a;
}
static async Task<int> TestNestedReturn (int v)
{
int x = 0;
try {
try {
x = await YieldValue (1);
Console.WriteLine ("T1");
if (x == v)
return 6;
} finally {
Console.WriteLine ("F1");
x += await YieldValue (2);
}
Console.WriteLine ("AF1");
} finally {
Console.WriteLine ("F2");
try {
x += await YieldValue (4);
Console.WriteLine ("T3");
} finally {
Console.WriteLine ("F3");
x += await YieldValue (8);
}
}
Console.WriteLine ("END");
return x;
}
static async Task<int> TestNestedGoto (int v)
{
int x = 0;
try {
try {
Console.WriteLine ("T1");
if (x == v)
goto L;
x = await YieldValue (1);
} finally {
Console.WriteLine ("F1");
x += await YieldValue (2);
}
Console.WriteLine ("AF1");
} finally {
Console.WriteLine ("F2");
try {
x += await YieldValue (4);
Console.WriteLine ("T3");
} finally {
Console.WriteLine ("F3");
x += await YieldValue (8);
}
}
Console.WriteLine ("END");
L:
Console.WriteLine ("END L");
return x;
}
public static int Main ()
{
if (TestNestedReturn (1).Result != 6)
return 1;
if (TestNestedReturn (0).Result != 15)
return 2;
if (TestNestedGoto (1).Result != 15)
return 3;
if (TestNestedGoto (0).Result != 14)
return 4;
return 0;
}
}
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