This change is similar in spirit to 82ef871a, which trades off using a
dyn for cutting down on type parameters. Similar reasoning applies here;
in practice, calling into an arena is quite rare, and we were already
forced into dyn Arenas to make other, more complex traits be
object-safe, too.
This change is similar in spirit to 82ef871a, which trades off using a dyn for cutting down on type parameters. Similar reasoning applies here; in practice, calling into an arena is quite rare, and we were already forced into dyn Arenas to make other, more complex traits be object-safe, too.
Signed-off-by: Miguel Young de la Sota mcyoung@google.com