[Issue 3538] New: Default value of alias template parameter is instantiated only once.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3538

           Summary: Default value of alias template parameter is
                    instantiated only once.
           Product: D
           Version: 2.036
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: critical
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: e.insafutdinov at gmail.com


--- Comment #0 from Eldar Insafutdinov <e.insafutdinov at gmail.com> 2009-11-21 12:28:04 PST ---
template Boo(T) {}
struct Foo(T, alias V = Boo!T) { pragma(msg, V.stringof); }
alias Foo!double B;
alias Foo!int A;

outputs

Boo!(double)                                                        
Boo!(double)

while it should

Boo!(double)                                                        
Boo!(int)


Although it's a blocker for a design that I intend to use, I don't mark it as
such with hope that it'll get fixed, as it looks trivial to me.

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