[Issue 8259] New: AssociativeArray seen through with alias parameter and UFCS

d-bugmail at puremagic.com d-bugmail at puremagic.com
Sun Jun 17 10:26:10 PDT 2012


http://d.puremagic.com/issues/show_bug.cgi?id=8259

           Summary: AssociativeArray seen through with alias parameter and
                    UFCS
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: doob at me.com


--- Comment #0 from Jacob Carlborg <doob at me.com> 2012-06-17 10:28:26 PDT ---
The following code shows that depending on how a function is called,
UFCS or regular syntax, the type of T is inferred differently. If I
remove the alias parameter the code behaves as expected. 

string foo (alias p, T) (T t)
{
     return typeof(t).stringof;
}

void main ()
{
     string[string] aa;

     auto x = foo!(3 > 4)(aa);
     auto y = aa.foo!(3 > 4);

     assert(x == y);

     writeln("x=", x);
     writeln("y=", y);
}

In the above code the assert is triggered. If I remove the assert the
code prints:

x=string[string]
y=AssociativeArray!(string,string)

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