D: pay for what you use?

[Mike]

On Thursday, 13 February 2014 at 21:08:01 UTC, Mike wrote:
>
>> 2) Is it possible to fully disable runtime type information? I 
>> understand that being able to get different information about 
>> object type in the runtime may be very useful, but I've never 
>> used it. However D compilers do generate RTTI-tables no matter 
>> what with all class names, module names and etc.
>
> I use -ffunction-sections and -fdata-sections, in collusion 
> with ld's --gc-sections to strip out stuff I'm not using.  This 
> can also be done with a custom linker script.  Again, my wiki 
> describes this.
>
> To get GDC just to compile my code, I've had to stub out the 
> TypeInfo stuff in object.d/di.  I have a 20 line object.d that 
> allows me to declare structs [6].  With one or two more stubs, 
> I can have classes with static properties.  I have the code, 
> but I haven't checked it in yet.
>
> There was an excellent discussion about this on the forum [7].  
> I encourage you to read it if you're really serious about your 
> pursuit of this knowledge.
>
> [7] 
> http://forum.dlang.org/post/jynxfglpulguvqbivrms@forum.dlang.org

I forgot to add the LDC has some useful features for this [1].  
See the LDC_no_typeinfo and LDC_no_moduleinfo pragmas.

Mike

[1] http://wiki.dlang.org/LDC-specific_language_changes