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all: clean up and proerly abstract database access

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This commit is contained in:
Péter Szilágyi
2018-09-24 15:57:49 +03:00
parent 15eee47ebf
commit 054412e335
94 changed files with 1573 additions and 1381 deletions
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6
trie/proof.go
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@ -34,7 +34,7 @@ import (
// If the trie does not contain a value for key, the returned proof contains all
// nodes of the longest existing prefix of the key (at least the root node), ending
// with the node that proves the absence of the key.
func (t *Trie) Prove(key []byte, fromLevel uint, proofDb ethdb.Putter) error {
func (t *Trie) Prove(key []byte, fromLevel uint, proofDb ethdb.Writer) error {
// Collect all nodes on the path to key.
key = keybytesToHex(key)
var nodes []node
@ -97,14 +97,14 @@ func (t *Trie) Prove(key []byte, fromLevel uint, proofDb ethdb.Putter) error {
// If the trie does not contain a value for key, the returned proof contains all
// nodes of the longest existing prefix of the key (at least the root node), ending
// with the node that proves the absence of the key.
func (t *SecureTrie) Prove(key []byte, fromLevel uint, proofDb ethdb.Putter) error {
func (t *SecureTrie) Prove(key []byte, fromLevel uint, proofDb ethdb.Writer) error {
return t.trie.Prove(key, fromLevel, proofDb)
}
// VerifyProof checks merkle proofs. The given proof must contain the value for
// key in a trie with the given root hash. VerifyProof returns an error if the
// proof contains invalid trie nodes or the wrong value.
func VerifyProof(rootHash common.Hash, key []byte, proofDb DatabaseReader) (value []byte, nodes int, err error) {
func VerifyProof(rootHash common.Hash, key []byte, proofDb ethdb.Reader) (value []byte, nodes int, err error) {
key = keybytesToHex(key)
wantHash := rootHash
for i := 0; ; i++ {