[Issue 12676] New: alias parameter attempts to interpret symbol

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12676

          Issue ID: 12676
           Summary: alias parameter attempts to interpret symbol
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody at puremagic.com
          Reporter: andrej.mitrovich at gmail.com

I think this may be a valid bug report, unless I'm misunderstanding things:

-----
class C { }

template TemplAlias1(
    alias x = C  // default
) { }

template TemplAlias2(
    alias x : C  // specialization
) { }

template TemplAlias2(
    alias x : C = C  // default = C, specializes to C
) { }

void main()
{
    alias a = TemplAlias1!();
    alias b = TemplAlias2!(C);
    alias b = TemplAlias3!();
}
-----

$ dmd test.d
> test.d(12): Error: Cannot interpret C at compile time

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