...to compile, with the following error message:

---
bug.d(13): Error: template `std.typecons.Nullable...

...b');
    assert(pos == 1);

    return 0;
}


Linker error message:

Linking...
/usr/bin/ld: .dub/build...

...ID: 21699
           Summary: Duplicate error for index out...somehow misses the double message. I have used...

https://issues.dlang.org/show_bug.cgi?id=21697

Paul Backus <snarwin+bugzilla@gmail.com...

...no "Error
instantiating" message??
    //runInsideTemplateIndirect!bar2(); // Error: need this, but no "Error
instantiating" message??
    //runOutsideTemplateDirect...

Now that you mention it, I'm pretty sure I've run into this before...

From the language spec [1]:

So, inside the invariant, the object is treated as const...

...122;

    bool alive = true;
    int age = 0;
    //Error: mutable method onlineapp.Human.checkAge is not...

...Error
                run!(() { foo(); })();
        }
}

The limitation of the 3rd syntax seems rather arbitrary. The error message...

...Issue ID: 21694
           Summary: Misleading error message and invalid goto error
           Product: D
           Version: D2...