Re: MakeClass
Jacek M. Holeczek (holeczek@us.edu.pl)
Tue, 20 Apr 1999 10:15:45 +0200 (MET DST)
> add a statement like:
> tree->SearchActiveBranches("file.C");
> ( ... )
> SearchActiveBranches will read the ascii file file.C scanning
> ( ... )
> For each referenced variable, I will automatically call
> tree->SetBranchStatus. That's all !!
> You can imagine (and I trust you to propose additions/substractions)
> a more elaborated mechanism to take into account the case where
> the analysis code is spread over several files.
The problem does not begin first when the source is "spread".
Imagine you have leaf names in commentars, or in conditional code '#if ...
#endif'. The 'scanning' routine will see them all.
And it a leaf name is computed 'on the fly' it won't see it at all.
I hoped you are building some kind of "watchpoints" into the "new
algorithm" to generate traps when a particular leaf is accessed.
> My guess is that this algorithm will be more performant than you algorithm
> in most cases.
This migh be. But I accept this price for the total freedom.
> One could also imagine to combine this algorithm with your proposed
> algorithm to take into account variables used only conditionally.
Note - I don't ( DO NOT ) propose to replace the TTree:MakeClass with my
MakeClass.cxx macro. Most probably, they both have their place in life.
But if you find it useful, feel free to do it.
Jacek.