On 2/20/12 12:11 PM, dennis luehring wrote:
Am 20.02.2012 17:36, schrieb Andrei Alexandrescu:
I understand this seems loose, but again, when you want to do custom
formatting or i18n this is the way to go. The job of rendering the
exception as a string must be outsourced (heh) outside the exception,
and Variant[string] is a simple mechanism to do so.
Andrei
it is loose and Variant[string] is a simple mechanism for data
transport, but evil in form of compile-time checks, the complete
signature of your information is then (per se) only runtime-checked, how
to prevent difference in the info[] filling and info[] usage over time?
i just mistyped my key, removed a key, used a different, etc... multiply
that by the amount of needed Exceptions and their info-key-variants ...
hell on earth
This is not hell on earth, it is the classic type dilution when you need
to abide to binary interfaces.
in the end you will have a bunch of modules wich const-string-keys for
the exception creation and rendering, and then i don't see any real
difference to a specialize exception
No, you end up with centralized formatting facilities and smaller code.
Andrei
