2009-10-20 Jb Evain <jbevain@novell.com>
[mcs.git] / tests / gtest-lambda-04.cs
blobfb310efb61d5f587dfb71f44b7afb2c5200592bb
2 //
3 // This test is used to test the type information flow between arguments
4 // in a generic method invocation, where:
5 //
6 // 1. We first infer the type of X from the first argument to F
7 //
8 // 2. We use this information to infer from the type of f1 and Func
9 // that X is a TimeSpan.
11 // 3. Use the X=String and Y=TimeSpan to infer the value for Z
12 // which is double
15 using System;
16 public delegate TResult Func<TArg0, TResult> (TArg0 arg0);
18 class Demo {
19 static Z F<X,Y,Z>(X value, Func<X,Y> f1, Func<Y,Z> f2)
21 return f2 (f1(value));
23 static int Main ()
25 double d = F("1:15:30", s => TimeSpan.Parse(s), t => t.TotalSeconds);
26 if (d < 4529 || d > 4531)
27 return 1;
28 return 0;