We use NoContent to signify an empty response nowadays. This commit
replaces all occurences of () with NoContent so that all packages use
the new semantics.
This introduces a `Delayed` type in `RoutingApplication.hs` that
contains a handler together with delayed checks. There are several
blocks of delayed checks, so that we can ultimately execute them in the
order we desire.
The process is documented in more detail in `RoutingApplication.hs`.
With DocOptions one can limit maximum number of samples.
This is useful for Generic-based instances for recursive data types
(e.g. `[]`). Default options set maxSamples to 5.
The default Generics-based ToSample instance now uses Omega type
to productively produce distinct samples. The previous version
was based on lists and hence left-recursive. This means that with
previous versions the default toSamples for [Bool] would return an
infinite list like this:
[[],[False],[False,False],[False,False,False],...
As you can see it would never produce a list with True in it.
Omega handles this and produces a more diverse output:
[[],[False],[False,False],[True],...
This is still not the best possible case, but to do better we need
to use Omega not only in GToSample, but in ToSample as well since
GToSample uses ToSample instances recursively.
- introduce an internal `GToSample` class
- introduce internal functions `defaultSample` and `defaultSamples`
- add default signature for `toSamples` to use Generics
- set default `toSamples` implementation to `defaultSamples`
- remove the `MINIMAL` pragma to avoid warnings for empty instances
tighter version bounds for network
cleanup
document the new combinators
servant-server: add some tests for HttpVersion, IsSecure, RemoteHost and Vault
update changelogs
address Julian's feedback
remove vault test in servant-server
servant-server tests: -Werror friendly
When adding extra info using using docsWith, the responses vanished from
the output. This was due to combineAction being left-biased, and
docsWith combining the extra info with the enpoint (in that
order). Flipping combineAction solves this.
