tree 673238f496d7fc6a6df0b96c6537fdac7574e579
parent 4ffae16a011f61e2a88dc794960c3073883c5ee9
author Dave Cheney <dave@cheney.net> 1465454708 +1000
committer Dave Cheney <dave@cheney.net> 1465454708 +1000

Use fmt.Formatter throughout (#40)

* Use fmt.Formatter throughout

Replace Fprintf with fmt.Formatter logic on various types. This
effectively guts Fprint to be just a recursive call down the err.Cause
chain. The next step will be to move this recursive logic into
wrapper.Format.

This change necessitates adding types for the error impls returned from
New and Errorf, and Wrap and Wrapf, respectively. The name of the latter
type is acceptable, the former is not and alternative suggestions are
encouraged.

- Remove cause.Format
- Added fmt.Formatter tests. The location is temporary, once this PR is merged and Fprint removed
they will be merged into errors_test.go