While people have moved away from it now that we have keywords (for some good reasons), the Options.jl package might be worth a look in this specific case.
--Tim On Thursday, October 09, 2014 03:14:52 PM Stefan Karpinski wrote: > Yes, this is a major problem, but I'm not sure what the fix is. It's a > serious language design issue and I'm not aware of any languages that have > good solutions. > > On Thu, Oct 9, 2014 at 3:09 PM, Andrei Berceanu <andreiberce...@gmail.com> > > wrote: > > I often find myself passing long lists of parameters from one function to > > another. A simple, contrived example would be the following > > > > > > > > > > > > > > > > > > > > > > > > *function fun3(; kw1 = 1, kw2 = 2, kw5 = 8, kw6 = 4) fun2(; kw1 = kw1, > > kw2 = kw2)endfunction fun2(; kw1 = 1, kw2 = 2) fun1(; kw1 = kw1, kw2 = > > kw2)endfunction fun1(; kw1 = 1, kw2 = 2, kw3 = 3) kw1 + kw2 + > > kw3end*This results in code which is not easy to maintain. Notice that > > kw1 and kw2 are common to all 3 functions. Is there a way to pass the two > > of them (or more!) automatically? The way the code is written now, if I > > decide I want kw3 of fun1 to be changeable from fun3, I need to change > > the code in various places (in bold) -- very bug prone: > > > > *function fun3(; kw1 = 1, kw2 = 2, kw5 = 8, kw6 = 4* > > *, kw3=3) fun2(; kw1 = kw1, kw2 = kw2* > > > > > > > > > > > > > > > > *, kw3=kw3)endfunction fun2(; kw1 = 1, kw2 = 2, kw3=3) fun1(; kw1 = > > kw1, kw2 = kw2, kw3=kw3)endfunction fun1(; kw1 = 1, kw2 = 2, kw3 = 3) > > kw1 + kw2 + kw3end* > > Tnx, > > //A
