[Libreoffice] uno discoverability

[Stephan Bergmann]

On 11/16/2011 11:25 AM, Michael Meeks wrote:
> 	IMHO we need to make that code efficient by having a var-args style
> helper:
>
> 	throw FooException("Failure loading file '%S' code %d",
> 			   aOUStr.pData, nCode);
>
> 	That would also be fairly code size efficient as well vs. the
> heavy-lifting, and big string-buffer construction madness :-)

This (as well as cooking something up using OSL_FORMAT) would have the 
disadvantage that it potentially converts data from UTF-16 to char 
("%S") and then from char to UTF-16 (as UNO Exception's Message is of 
type rtl::OUString).

It seems like all attempts at true improvement in this area always 
collide with rtl::OUString being neither UTF-8 (i.e., layout compatible 
with plain char) nor wchar_t (at least on Linux etc.; and using GCC's 
-fshort-wchar would not help, as it breaks binary compatibility with 
libstdc++).  We'll probably wait until either all relevant compilers 
support C++11's new character types, or we incompatibly change 
rtl::OUString to UTF-8 (whatever happens first).

> 	It'd be great to use a more pleasant format like Stephan's new configmr
> XML - if we can get the performance we need there; and of course add the
> API docs to some parallel docs file, only loaded when needed
> (interactively by developers). But of course it's a good idea.

For types.rdb, my vision is to either use an XML format or, IMO even 
better, a new .idl format that is (a) less verbose (why the heck all 
those ";" in there, etc.?) and (b) does not rely on a preprocessor. 
Then, a types.rdb could effectively be just one large .idl file.

Stephan