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48 lines
841 B
48 lines
841 B
package merkle
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import (
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. "github.com/tendermint/tendermint/binary"
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"fmt"
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)
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type Value interface {
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Binary
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}
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type Key interface {
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Binary
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Equals(Binary) bool
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Less(b Binary) bool
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}
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type Db interface {
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Get([]byte) []byte
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Put([]byte, []byte)
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}
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type Node interface {
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Binary
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Key() Key
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Value() Value
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Size() uint64
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Height() uint8
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Hash() (ByteSlice, uint64)
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Save(Db)
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}
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type Tree interface {
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Root() Node
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Size() uint64
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Height() uint8
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Has(key Key) bool
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Get(key Key) Value
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Hash() (ByteSlice, uint64)
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Save()
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Put(Key, Value) bool
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Remove(Key) (Value, error)
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Traverse(func(Node)bool)
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}
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func NotFound(key Key) error {
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return fmt.Errorf("Key was not found.")
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}
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