trie

package
v1.0.0 Latest Latest
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 Go to latest Published: Jul 29, 2015 License: GPL-3.0 Imports: 12 Imported by: 0

Documentation

Overview

Package trie implements Merkle Patricia Tries.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BeginsWith 

func BeginsWith(a, b []byte) bool

func CompactDecode 

func CompactDecode(str string) []byte

func CompactEncode 

func CompactEncode(hexSlice []byte) string

func CompactHexDecode 

func CompactHexDecode(str string) []byte

func CompareIntSlice 

func CompareIntSlice(a, b []int) bool

Helper function for comparing slices

func DecodeCompact 

func DecodeCompact(key []byte) string

func HasTerm 

func HasTerm(s []byte) bool

func MatchingNibbleLength 

func MatchingNibbleLength(a, b []byte) int

Returns the amount of nibbles that match each other from 0 ...

func RemTerm 

func RemTerm(s []byte) []byte

Types

type Backend 

type Backend interface {
	Get([]byte) ([]byte, error)
	Put([]byte, []byte) error
}

type Cache 

type Cache struct {
	// contains filtered or unexported fields
}

func NewCache 

func NewCache(backend Backend) *Cache

func (*Cache) Copy 

func (self *Cache) Copy() *Cache

func (*Cache) Flush 

func (self *Cache) Flush()

Flush flushes the trie to the backing layer. If this is a leveldb instance we'll use a batched write, otherwise we'll use regular put.

func (*Cache) Get 

func (self *Cache) Get(key []byte) []byte

func (*Cache) Put 

func (self *Cache) Put(key []byte, data []byte)

func (*Cache) Reset 

func (self *Cache) Reset()

type FullNode 

type FullNode struct {
	// contains filtered or unexported fields
}

func NewFullNode 

func NewFullNode(t *Trie) *FullNode

func (*FullNode) Branches 

func (self *FullNode) Branches() []Node

func (*FullNode) Copy 

func (self *FullNode) Copy(t *Trie) Node

func (*FullNode) Dirty 

func (self *FullNode) Dirty() bool

func (*FullNode) Hash 

func (self *FullNode) Hash() interface{}

func (*FullNode) Len 

func (self *FullNode) Len() (amount int)

Returns the length of non-nil nodes

func (*FullNode) RlpData 

func (self *FullNode) RlpData() interface{}

func (*FullNode) String 

func (self *FullNode) String() string

func (*FullNode) Value 

func (self *FullNode) Value() Node

type HashNode 

type HashNode struct {
	// contains filtered or unexported fields
}

func NewHash 

func NewHash(key []byte, trie *Trie) *HashNode

func (*HashNode) Copy 

func (self *HashNode) Copy(t *Trie) Node

func (*HashNode) Dirty 

func (self *HashNode) Dirty() bool

func (*HashNode) Hash 

func (self *HashNode) Hash() interface{}

func (*HashNode) RlpData 

func (self *HashNode) RlpData() interface{}

func (*HashNode) Value 

func (self *HashNode) Value() Node

These methods will never be called but we have to satisfy Node interface

type Iterator 

type Iterator struct {
	Key   []byte
	Value []byte
	// contains filtered or unexported fields
}

func NewIterator 

func NewIterator(trie *Trie) *Iterator

func (*Iterator) Next 

func (self *Iterator) Next() bool

type Node 

type Node interface {
	Value() Node
	Copy(*Trie) Node // All nodes, for now, return them self
	Dirty() bool

	Hash() interface{}
	RlpData() interface{}
	// contains filtered or unexported methods
}

type SecureTrie 

type SecureTrie struct {
	*Trie
}

func NewSecure 

func NewSecure(root []byte, backend Backend) *SecureTrie

func (*SecureTrie) Copy 

func (self *SecureTrie) Copy() *SecureTrie

func (*SecureTrie) Delete 

func (self *SecureTrie) Delete(key []byte) Node

func (*SecureTrie) DeleteString 

func (self *SecureTrie) DeleteString(key string) Node

func (*SecureTrie) Get 

func (self *SecureTrie) Get(key []byte) []byte

func (*SecureTrie) GetKey 

func (self *SecureTrie) GetKey(shaKey []byte) []byte

func (*SecureTrie) GetString 

func (self *SecureTrie) GetString(key string) []byte

func (*SecureTrie) Update 

func (self *SecureTrie) Update(key, value []byte) Node

func (*SecureTrie) UpdateString 

func (self *SecureTrie) UpdateString(key, value string) Node

type ShortNode 

type ShortNode struct {
	// contains filtered or unexported fields
}

func NewShortNode 

func NewShortNode(t *Trie, key []byte, value Node) *ShortNode

func (*ShortNode) Copy 

func (self *ShortNode) Copy(t *Trie) Node

func (*ShortNode) Dirty 

func (self *ShortNode) Dirty() bool

func (*ShortNode) Hash 

func (self *ShortNode) Hash() interface{}

func (*ShortNode) Key 

func (self *ShortNode) Key() []byte

func (*ShortNode) RlpData 

func (self *ShortNode) RlpData() interface{}

func (*ShortNode) String 

func (self *ShortNode) String() string

func (*ShortNode) Value 

func (self *ShortNode) Value() Node

type Trie 

type Trie struct {
	// contains filtered or unexported fields
}

func New 

func New(root []byte, backend Backend) *Trie

func ParanoiaCheck 

func ParanoiaCheck(t1 *Trie, backend Backend) (bool, *Trie)

func (*Trie) Commit 

func (self *Trie) Commit()

func (*Trie) Copy 

func (self *Trie) Copy() *Trie

func (*Trie) Delete 

func (self *Trie) Delete(key []byte) Node

func (*Trie) DeleteString 

func (self *Trie) DeleteString(key string) Node

func (*Trie) Get 

func (self *Trie) Get(key []byte) []byte

func (*Trie) GetString 

func (self *Trie) GetString(key string) []byte

func (*Trie) Hash 

func (self *Trie) Hash() []byte

func (*Trie) Iterator 

func (self *Trie) Iterator() *Iterator

func (*Trie) PrintRoot 

func (self *Trie) PrintRoot()

func (*Trie) Reset 

func (self *Trie) Reset()

Reset should only be called if the trie has been hashed

func (*Trie) Root 

func (self *Trie) Root() []byte

Legacy support

func (*Trie) Update 

func (self *Trie) Update(key, value []byte) Node

func (*Trie) UpdateString 

func (self *Trie) UpdateString(key, value string) Node

type ValueNode 

type ValueNode struct {
	// contains filtered or unexported fields
}

func NewValueNode 

func NewValueNode(trie *Trie, data []byte) *ValueNode

func (*ValueNode) Copy 

func (self *ValueNode) Copy(t *Trie) Node

func (*ValueNode) Dirty 

func (self *ValueNode) Dirty() bool

func (*ValueNode) Hash 

func (self *ValueNode) Hash() interface{}

func (*ValueNode) RlpData 

func (self *ValueNode) RlpData() interface{}

func (*ValueNode) String 

func (self *ValueNode) String() string

Value node

func (*ValueNode) Val 

func (self *ValueNode) Val() []byte

func (*ValueNode) Value 

func (self *ValueNode) Value() Node

Source Files

View all Source files

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