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Merge pull request #76 from openrelayxyz/feature/expose-state-trie
Feature/expose state trie
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package backendwrapper | ||
|
|
||
| import ( | ||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/core/state" | ||
| "github.com/ethereum/go-ethereum/trie" | ||
|
|
||
| "github.com/openrelayxyz/plugeth-utils/core" | ||
| ) | ||
|
|
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| type WrappedTrie struct { | ||
| t state.Trie | ||
| } | ||
|
|
||
| func NewWrappedTrie(t state.Trie) core.Trie { | ||
| return &WrappedTrie{t} | ||
| } | ||
|
|
||
| func (t *WrappedTrie) GetKey(b []byte) []byte { | ||
| return t.t.GetKey(b) | ||
| } | ||
|
|
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| func (t *WrappedTrie) GetAccount(address core.Address) (*core.StateAccount, error) { | ||
| act, err := t.t.GetAccount(common.Address(address)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &core.StateAccount{ | ||
| Nonce: act.Nonce, | ||
| Balance: act.Balance, | ||
| Root: core.Hash(act.Root), | ||
| CodeHash: act.CodeHash, | ||
| }, nil | ||
| } | ||
|
|
||
| func (t *WrappedTrie) Hash() core.Hash { | ||
| return core.Hash(t.t.Hash()) | ||
| } | ||
|
|
||
| func (t *WrappedTrie) NodeIterator(startKey []byte) core.NodeIterator { | ||
| itr := t.t.NodeIterator(startKey) | ||
| return &WrappedNodeIterator{itr} | ||
| } | ||
|
|
||
| func (t *WrappedTrie) Prove(key []byte, fromLevel uint, proofDb core.KeyValueWriter) error { | ||
| return nil | ||
| } | ||
|
|
||
| type WrappedNodeIterator struct { | ||
| n trie.NodeIterator | ||
| } | ||
|
|
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| func (n WrappedNodeIterator) Next(b bool) bool { | ||
| return n.n.Next(b) | ||
| } | ||
|
|
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| func (n WrappedNodeIterator) Error() error { | ||
| return n.n.Error() | ||
| } | ||
|
|
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| func (n WrappedNodeIterator) Hash() core.Hash { | ||
| return core.Hash(n.n.Hash()) | ||
| } | ||
|
|
||
| func (n WrappedNodeIterator) Parent() core.Hash { | ||
| return core.Hash(n.n.Parent()) | ||
| } | ||
|
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| func (n WrappedNodeIterator) Path() []byte { | ||
| return n.n.Path() | ||
| } | ||
|
|
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| func (n WrappedNodeIterator) NodeBlob() []byte { | ||
| return n.n.NodeBlob() | ||
| } | ||
|
|
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| func (n WrappedNodeIterator) Leaf() bool { | ||
| return n.n.Leaf() | ||
| } | ||
|
|
||
| func (n WrappedNodeIterator) LeafKey() []byte { | ||
| return n.n.LeafKey() | ||
| } | ||
|
|
||
| func (n WrappedNodeIterator) LeafBlob() []byte { | ||
| return n.n.LeafBlob() | ||
| } | ||
|
|
||
| func (n WrappedNodeIterator) LeafProof() [][]byte { | ||
| return n.n.LeafProof() | ||
| } | ||
|
|
||
| func (n WrappedNodeIterator) AddResolver(c core.NodeResolver) { | ||
| n.n.AddResolver(WrappedNodeResolver(c)) | ||
| } | ||
|
|
||
| func WrappedNodeResolver(fn core.NodeResolver) trie.NodeResolver { | ||
| return func(owner common.Hash, path []byte, hash common.Hash) []byte { | ||
| return fn(core.Hash(owner), path, core.Hash(hash) ) | ||
| } | ||
| } |