Update license header to standard format for source files missed prior.
Add license header to new source files.
Add Makefile check to test all `*.go` and `*.sh` files have a copyright
notice (or comment about them being auto-generated) within the first few
lines.
* Drop entry from correlation map
Entry used to contain stuff like TTL, but right now the notion of
entry was dropped from the spec.
* Compute exact size of the correlations map
The map will be immutable, so spend some more time to ensure that we
will not unnecessarily waste some memory on a basically read-only map.
* Allow dropping keys from correlations map
This is to follow the spec. Before this change it was possible in an
awkward way by using Foreach to gather and filter the key-value pairs,
and then calling NewMap with a MultiKV MapUpdate.
* Document the correlation package
* Add missing license blurbs in correlation package
* Add tests for deleting items in correlations
* Factor out getting map size and test it
This is an implementation detail that can't be tested in a black-box
manner.
* Fix copyright dates
* Simplify/disambiguate keySet function parameters/return values
* Fix typo in Apply docs
* Fix test names
* Explain the nonsense of dropping keys from new map
* Rename distributedcontext package to correlation
Correlation is the name we agreed upon.
* Move trace propagators to api/trace
The trace propagators tests had to be moved to a testtrace subpackage
to avoid import cycles between api/trace and internal/trace.
Needed to shut up golint about stutter in trace.TraceContext -
TraceContext is a name of a W3C spec, so this stutter is
expected. It's certainly still better than golint's suggestion of
having trace.Context.
* Rename api/propagators to api/propagation
This package will not contain any propagators in the long run, just
the interface definitions.
Co-authored-by: Joshua MacDonald <jmacd@users.noreply.github.com>
