Following 9b6ce030d0 ("sstables: remove quadratic (and possibly
exponential) compile time in parse()"), where we removed recursion
in reading, we do the same here for variadic write. This results
in a small reduction in compile time.
Note the problem isn't very bad here. This is tail-recursion, so likely
removed by the compiler during optimization, and we don't have additional
amplification due to future::then() double-compiling the ready-future
and unready-future paths. Still, better to avoid quadratic compile
times.
Closesscylladb/scylladb#27050
f7413a47e4