trie/shortnode.go


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package trie

import "github.com/ethereum/go-ethereum/ethutil"

type ShortNode struct {
    trie  *Trie
    key   []byte
    value Node
}

func NewShortNode(t *Trie, key []byte, value Node) *ShortNode {
    return &ShortNode{t, []byte(CompactEncode(key)), value}
}
func (self *ShortNode) Value() Node {
    self.value = self.trie.trans(self.value)

    return self.value
}
func (self *ShortNode) Dirty() bool { return true }
func (self *ShortNode) Copy(t *Trie) Node {
    node := &ShortNode{t, nil, self.value.Copy(t)}
    node.key = ethutil.CopyBytes(self.key)
    return node
}

func (self *ShortNode) RlpData() interface{} {
    return []interface{}{self.key, self.value.Hash()}
}
func (self *ShortNode) Hash() interface{} {
    return self.trie.store(self)
}

func (self *ShortNode) Key() []byte {
    return CompactDecode(string(self.key))
}