On 11/18/14 03:50, Adriano dos Santos Fernandes wrote: > Hi! > > Currently the API is problematic in any non usage scenario different > than one used internally in FB code. > > We have the "I" classes witch are typedefs for a "default" policy, a > policy that is just not suitable for C++, as it ignore exceptions and > avoids every piece of the policy idea. > > Even if the code is improved to support exceptions, it will be our own > exception class, not something C++ people is going to use. > > We have the "I" classes used in places they should not, like structs, > typedefs, prototypes, meaning these items are bound to an unique policy.
Adriano, probably I did not understand you correctly. Please provide one or two samples. > That's not what the cloop utility has designed for. > > We should have everything (structs - exception GDS_QUAD and legacy > things), C++ concrete classes (the message code), etc inside the API class. > > But then, every use of the classes need a "prefix::". Generally, the > user is going to do this: > > #include "firebird/Api.h" > > typedef ::Firebird::Api<SomePolicy> fb; > > fb::Attachment* attachment = ... > > This is one common way to use C++, many people does not "include" > namespaces, but alias then to something more easy to type, when it's > not. Most of time, this is really with namespaces, but in our case it > will be a class. Do you suggest it for external usage or internally? > As a class, one cannot use (using keyword) they items. Also, as there > are templates, the C++ version we use does not allow to typedef the > items to extract them from the prefix class. > > If you do not want this, there is still alternative, but it's crap IMO. > It consists of allowing a header to be included multiple times, and > expect the user to write a piece of code (the policy in a namespace) and > include that header in the middle of they code. Adriano, looks like I can't understand you. Can you explain in few words - what problem are you solving now? How to provide people a comfortable way of writing a policy? ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
