vendor/github.com/hashicorp/go-multierror/flatten.go

   1 package multierror
   2
   3 // Flatten flattens the given error, merging any *Errors together into
   4 // a single *Error.
   5 func Flatten(err error) error {
   6         // If it isn't an *Error, just return the error as-is
   7         if _, ok := err.(*Error); !ok {
   8                 return err
   9         }
  10
  11         // Otherwise, make the result and flatten away!
  12         flatErr := new(Error)
  13         flatten(err, flatErr)
  14         return flatErr
  15 }
  16
  17 func flatten(err error, flatErr *Error) {
  18         switch err := err.(type) {
  19         case *Error:
  20                 for _, e := range err.Errors {
  21                         flatten(e, flatErr)
  22                 }
  23         default:
  24                 flatErr.Errors = append(flatErr.Errors, err)
  25         }
  26 }