| Reporter |
Vladimir Reshetnikov (nikov)
|
|---|---|
| Created | Jan 10, 2012 10:51:02 PM |
| Updated | Jan 10, 2012 11:06:50 PM |
| Priority | Normal |
| Type | Bug |
| Fix versions | No Fix versions |
| State | Submitted |
| Assignee | Unassigned |
| Subsystem | No subsystem |
| Affected versions | No Affected versions |
| Fixed in build | No Fixed in build |
using System.Collections.Generic;
class A
{
static void Foo<T, S, U>(T x)
where T : IList<S>
where S : IList<U>
{
var y = x.Count; // Extract method from x.Count
}
}
Actual:
using System.Collections.Generic;
class A
{
static void Foo<T, S, U>(T x)
where T : IList<S>
where S : IList<U>
{
var y = Count<T, S, U>(x);
}
private static int Count<T, S, U>(T x)
where T : IList<S>
where S : IList<U>
where T : IList<S>
where S : IList<U>
where T : IList<S>
where S : IList<U> // error CS0409: A constraint clause has already been specified for type parameter 'T'. All of the constraints for a type parameter must be specified in a single where clause.
{
return x.Count;
}
}
Expected:
using System.Collections.Generic;
class A
{
static void Foo<T, S, U>(T x)
where T : IList<S>
where S : IList<U>
{
var y = Count<T, S>(x);
}
private static int Count<T, S>(T x)
where T : IList<S>
{
return x.Count;
}
}