coredns/plugin/file/tree/all.go
Miek Gieben 1d5095cf67
plugin/file: Rename do to walk and cleanup and document (#2987)
* plugin/file: Rename do to walk, cleanup and document

* This renames Do to Walk to be more inline with Go standards. Also make
  it return an error instead of a bool.
  Also give give walk access to rrs. Alternatively e.m could be
  exported, but just access the map of rrs should work as well. Another
  alternative would be adding a whole bunch of helper functions, but
  those need grab and return the data. Just having access to the rrs
  should be easiest for most Walks.
* It adds Type and TypeForWildcard to show the different functions
* *Removes* the identical RR check when inserting; this was only done
  for A, AAAA and MX and not finished; removed under the mantra garbage
  in garbage out.
* Reuses Types to return all the types in an *tree.Elem

Signed-off-by: Miek Gieben <miek@miek.nl>

* better comments

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-07-18 17:44:47 +00:00

21 lines
367 B
Go

package tree
// All traverses tree and returns all elements.
func (t *Tree) All() []*Elem {
if t.Root == nil {
return nil
}
found := t.Root.all(nil)
return found
}
func (n *Node) all(found []*Elem) []*Elem {
if n.Left != nil {
found = n.Left.all(found)
}
found = append(found, n.Elem)
if n.Right != nil {
found = n.Right.all(found)
}
return found
}