[Issue 7943] New: UFCS does not work with alias this

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7943

           Summary: UFCS does not work with alias this
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: jens.k.mueller at gmx.de


--- Comment #0 from jens.k.mueller at gmx.de 2012-04-19 04:47:04 PDT ---
The following code does not compile but it should.

ufcs.d:
struct Foo
{
   int _member;
   alias _member this;
}

int foo(Foo f) { return f._member; }

unittest
{
   Foo f;
   f.foo(); // fails to compile
}

Using dmd2.059 you get:
Error: function ufcs.foo (Foo f) is not callable using argument types (int)
Error: cannot implicitly convert expression (f._member) of type int to Foo

Note, that this bugs prevents using UFCS with std.typecons.Tuple.

http://forum.dlang.org/thread/mailman.1925.1334827762.4860.digitalmars-d@puremagic.com

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