Possible solution to template bloat problem?

[Dicebot]

On Monday, 19 August 2013 at 21:33:08 UTC, H. S. Teoh wrote:
> Inside this
> archive, template instantiations are organized according to the 
> module
> hierarchy -- i.e., if you import std.stdio and use writeln, the
> instantiation of writeln will be put into std/stdio/writeln_*.o 
> in
> templates.a, NOT the root module.

Ok. Now you change the signature of writeln. Incremental rebuild. 
Will you do reflection upon the object file in templates.a to get 
the list of required instances? Or rebuild all modules that 
import std.stdio even indirectly? Most likely latter, because it 
also could have been inlined in several places and those need to 
be rebuilt too.

To track modules that actually use that template instance one 
needs implementation from my proposal #1 anyway :(