storage

func (*TrieState) ClearChildStorage ¶

func (t *TrieState) ClearChildStorage(keyToChild, key []byte) error

ClearChildStorage removes the child storage entry from the trie

func (*TrieState) ClearPrefix ¶

func (t *TrieState) ClearPrefix(prefix []byte) (err error)

ClearPrefix deletes all key-value pairs from the trie where the key starts with the given prefix

func (*TrieState) ClearPrefixInChild ¶

func (t *TrieState) ClearPrefixInChild(keyToChild, prefix []byte) error

ClearPrefixInChild clears all the keys from the child trie that have the given prefix

func (*TrieState) ClearPrefixInChildWithLimit ¶ added in v0.8.0

func (t *TrieState) ClearPrefixInChildWithLimit(keyToChild, prefix []byte, limit uint32) (uint32, bool, error)

func (*TrieState) ClearPrefixLimit ¶ added in v0.7.0

func (t *TrieState) ClearPrefixLimit(prefix []byte, limit uint32) (
	deleted uint32, allDeleted bool, err error)

ClearPrefixLimit deletes key-value pairs from the trie where the key starts with the given prefix till limit reached

func (*TrieState) CommitTransaction ¶ added in v0.9.0

func (t *TrieState) CommitTransaction()

Commit commits all storage changes made since StartTransaction was called.

func (*TrieState) Delete ¶

func (t *TrieState) Delete(key []byte) (err error)

Delete deletes a key from the trie

func (*TrieState) DeleteChild ¶ added in v0.3.1

func (t *TrieState) DeleteChild(key []byte) (err error)

DeleteChild deletes a child trie from the main trie

func (*TrieState) DeleteChildLimit ¶ added in v0.7.0

func (t *TrieState) DeleteChildLimit(key []byte, limit *[]byte) (
	deleted uint32, allDeleted bool, err error)

DeleteChildLimit deletes up to limit of database entries by lexicographic order.

func (*TrieState) Get ¶

func (t *TrieState) Get(key []byte) []byte

Get gets a value from the trie

func (*TrieState) GetChangedNodeHashes ¶ added in v0.7.0

func (t *TrieState) GetChangedNodeHashes() (inserted, deleted map[common.Hash]struct{}, err error)

GetChangedNodeHashes returns the two sets of hashes for all nodes inserted and deleted in the state trie since the last block produced (trie snapshot).

func (*TrieState) GetChild ¶

func (t *TrieState) GetChild(keyToChild []byte) (*trie.Trie, error)

GetChild returns the child trie at the given key

func (*TrieState) GetChildNextKey ¶

func (t *TrieState) GetChildNextKey(keyToChild, key []byte) ([]byte, error)

GetChildNextKey returns the next lexicographical larger key from child storage. If it does not exist, it returns nil.

func (*TrieState) GetChildStorage ¶

func (t *TrieState) GetChildStorage(keyToChild, key []byte) ([]byte, error)

GetChildStorage returns a value from a child trie

func (*TrieState) GetKeysWithPrefixFromChild ¶

func (t *TrieState) GetKeysWithPrefixFromChild(keyToChild, prefix []byte) ([][]byte, error)

GetKeysWithPrefixFromChild ...

func (*TrieState) Has ¶

func (t *TrieState) Has(key []byte) bool

Has returns whether or not a key exists

func (*TrieState) LoadCode ¶

func (t *TrieState) LoadCode() []byte

LoadCode returns the runtime code (located at :code)

func (*TrieState) LoadCodeHash ¶

func (t *TrieState) LoadCodeHash() (common.Hash, error)

LoadCodeHash returns the hash of the runtime code (located at :code)

func (*TrieState) MustRoot ¶

func (t *TrieState) MustRoot() common.Hash

MustRoot returns the trie's root hash. It panics if it fails to compute the root.

func (*TrieState) NextKey ¶

func (t *TrieState) NextKey(key []byte) []byte

NextKey returns the next key in the trie in lexicographical order. If it does not exist, it returns nil.

func (*TrieState) Put ¶ added in v0.8.0

func (t *TrieState) Put(key, value []byte) (err error)

Put puts a key-value pair in the trie

func (*TrieState) RollbackTransaction ¶ added in v0.9.0

func (t *TrieState) RollbackTransaction()

Rollback rolls back all storage changes made since StartTransaction was called.

func (*TrieState) Root ¶

func (t *TrieState) Root() (common.Hash, error)

Root returns the trie's root hash

func (*TrieState) SetChild ¶

func (t *TrieState) SetChild(keyToChild []byte, child *trie.Trie) error

SetChild sets the child trie at the given key

func (*TrieState) SetChildStorage ¶

func (t *TrieState) SetChildStorage(keyToChild, key, value []byte) error

SetChildStorage sets a key-value pair in a child trie

func (*TrieState) SetVersion ¶ added in v0.9.0

func (t *TrieState) SetVersion(v trie.TrieLayout)

func (*TrieState) Snapshot ¶ added in v0.3.1

func (t *TrieState) Snapshot() *trie.Trie

Snapshot creates a new "version" of the trie. The trie before Snapshot is called can no longer be modified, all further changes are on a new "version" of the trie. It returns the new version of the trie.

func (*TrieState) StartTransaction ¶ added in v0.9.0

func (t *TrieState) StartTransaction()

StartTransaction begins a new nested storage transaction which will either be committed or rolled back at a later time.

func (*TrieState) Trie ¶

func (t *TrieState) Trie() *trie.Trie

Trie returns the TrieState's underlying trie

func (*TrieState) TrieEntries ¶

func (t *TrieState) TrieEntries() map[string][]byte

TrieEntries returns every key-value pair in the trie