On 12/22/2011 11:12 PM, Jonathan M Davis wrote:
On Thursday, December 22, 2011 21:30:46 Walter Bright wrote:
On 12/22/2011 7:13 PM, Jonathan M Davis wrote:
Okay. Assuming that I'm going to try and make TimeZone opaque within
SysTime, does that require a pointer rather than a reference? And I
assume then that the time zone stuff would need to be in a separate
module than SysTime. That being the case, how would SysTime be able to
use the time zone without importing that module? Does the C++ solution
of forward declaring it like
class TimeZone;
work in D?
It'll still put a reference to TimeZone in the ModuleInfo.
Will that still happen if the TimeZone is used in templated functions? SysTime
has several functions that use TimeZone explicitly - e.g. the timezone
property. It needs to be able to take and return a TimeZone. However, it
_could_ be templatized with an empty template parameter list. Would that avoid
pulling in the information on TimeZone if those functions aren't instantiated?
Or would it still pull it in?
- Jonathan M Davis
Templates, after instantiation, are exactly like their non-templated
equivalents. Before instantiation, they are not even semantically analyzed.
