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-rw-r--r--difftree/internal/radixmerkle/noder.go20
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diff --git a/difftree/internal/radixmerkle/noder.go b/difftree/internal/radixmerkle/noder.go
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--- a/difftree/internal/radixmerkle/noder.go
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-package merkletrie
-
-// The Noder interface is implemented by the elements of a Merkle Trie.
-type Noder interface {
- // Hash returns the hash of the element.
- Hash() []byte
- // Key returns the key of the element.
- Key() string
- // Children returns the children of the element, sorted
- // in reverse key alphabetical order.
- Children() []Noder
- // NumChildren returns the number of children this element has.
- //
- // This method is an optimization: the number of children is easily
- // calculated as the length of the value returned by the Children
- // method (above); yet, some implementations will be able to
- // implement NumChildren in O(1) while Children is usually more
- // complex.
- NumChildren() int
-}