d8714e64e4
* Rename middleware to plugin first pass; mostly used 'sed', few spots where I manually changed text. This still builds a coredns binary. * fmt error * Rename AddMiddleware to AddPlugin * Readd AddMiddleware to remain backwards compat
48 lines
964 B
Go
48 lines
964 B
Go
package tree
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// All traverses tree and returns all elements
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func (t *Tree) All() []*Elem {
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if t.Root == nil {
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return nil
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}
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found := t.Root.all(nil)
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return found
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}
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func (n *Node) all(found []*Elem) []*Elem {
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if n.Left != nil {
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found = n.Left.all(found)
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}
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found = append(found, n.Elem)
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if n.Right != nil {
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found = n.Right.all(found)
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}
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return found
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}
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// Do performs fn on all values stored in the tree. A boolean is returned indicating whether the
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// Do traversal was interrupted by an Operation returning true. If fn alters stored values' sort
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// relationships, future tree operation behaviors are undefined.
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func (t *Tree) Do(fn func(e *Elem) bool) bool {
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if t.Root == nil {
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return false
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}
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return t.Root.do(fn)
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}
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func (n *Node) do(fn func(e *Elem) bool) (done bool) {
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if n.Left != nil {
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done = n.Left.do(fn)
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if done {
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return
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}
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}
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done = fn(n.Elem)
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if done {
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return
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}
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if n.Right != nil {
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done = n.Right.do(fn)
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}
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return
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}
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