In previous implementation `pool` package provided access to resulting
values as pointers to them. This caused clients to handle nil
cases even when the field presence in the response is required.
Avoid returning pointers to values in result getters. This also reduces
reference counter load and allows values from `client.Client` to be
forwarded directly without additional assignment.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Connection pool package should not define `Pool` type as an interface
since it provides single particular implementation.
Make `pool.Pool` type a struct instead of interface. Also remove
`Object`, `Container` and `Accounting` interfaces.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Define `XPrm` type for each `X` client operation which structures
parameters. Export setters of each parameterized value. Emphasize that
some parameters are required. Make the client panic when the parameters
are incorrectly set. Get rid of vadiadic call options and `CallOption`
type. Improve documentation of client behavior.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
