Skip to content
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
Cannot retrieve contributors at this time
21 lines (17 sloc) 257 Bytes
package ln
type wrapper interface {
Unwrap() error
func unwrap(err error) error {
u, ok := err.(wrapper)
if !ok {
return nil
return u.Unwrap()
func doGoError(err error, f F) {
uw := unwrap(err)
if uw != nil {
f["wrapped_err"] = uw