98 lines
4.0 KiB
Nim
98 lines
4.0 KiB
Nim
#[
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FIXME-Adam: I feel like this and distinct_tries should either be combined or more clearly separated.
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The points of these two files are:
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- Have distinct types for the two kinds of tries, because we really don't want to mix them up.
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- Have an interface with functions like getAccountBytes rather than just get. (But still just a super-thin wrapper.)
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- Have maybeGetWhatever instead of just getWhatever. (Also assertions.)
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- Notice that this makes sense at both the bytes level and the Account/UInt256 level.
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]#
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import
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chronicles,
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eth/[common, trie/db],
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"."/[core_db, distinct_tries, storage_types, values_from_bytes]
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# Useful for debugging.
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const shouldDoAssertionsForMissingNodes* = false
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proc ifNodesExistGetAccountBytes*(trie: AccountsTrie, address: EthAddress): Option[seq[byte]] =
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trie.maybeGetAccountBytes(address)
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proc ifNodesExistGetStorageBytesWithinAccount*(storageTrie: StorageTrie, slotAsKey: openArray[byte]): Option[seq[byte]] =
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storageTrie.maybeGetSlotBytes(slotAsKey)
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proc populateDbWithNodes*(db: CoreDbRef, nodes: seq[seq[byte]]) =
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error("GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG AARDVARK: populateDbWithNodes received nodes, about to populate", nodes) # AARDVARK not an error, I just want it to stand out
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for nodeBytes in nodes:
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let nodeHash = keccakHash(nodeBytes)
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info("AARDVARK: populateDbWithNodes about to add node", nodeHash, nodeBytes)
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db.kvt.put(nodeHash.data, nodeBytes)
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# AARDVARK: just make the callers call populateDbWithNodes directly?
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proc populateDbWithBranch*(db: CoreDbRef, branch: seq[seq[byte]]) =
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for nodeBytes in branch:
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let nodeHash = keccakHash(nodeBytes)
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db.kvt.put(nodeHash.data, nodeBytes)
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# Returns a none if there are missing nodes; if the account itself simply
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# doesn't exist yet, that's fine and it returns some(newAccount()).
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proc ifNodesExistGetAccount*(trie: AccountsTrie, address: EthAddress): Option[Account] =
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ifNodesExistGetAccountBytes(trie, address).map(accountFromBytes)
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proc maybeGetCode*(db: CoreDbRef, codeHash: Hash256): Option[seq[byte]] =
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when defined(geth):
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if db.isLegacy:
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db.kvt.backend.toLegacy.maybeGet(codeHash.data)
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else:
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db.kvt.get(codeHash.data)
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else:
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if db.isLegacy:
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db.kvt.backend.toLegacy.maybeGet(contractHashKey(codeHash).toOpenArray)
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else:
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some(db.kvt.get(contractHashKey(codeHash).toOpenArray))
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proc maybeGetCode*(trie: AccountsTrie, address: EthAddress): Option[seq[byte]] =
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let maybeAcc = trie.ifNodesExistGetAccount(address)
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if maybeAcc.isNone:
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none[seq[byte]]()
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else:
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maybeGetCode(trie.db, maybeAcc.get.codeHash)
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proc checkingForMissingNodes_getCode*(trie: AccountsTrie, address: EthAddress): seq[byte] =
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let m = maybeGetCode(trie, address)
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doAssert(m.isSome, "missing code for account at " & $(address))
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m.get
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proc assertFetchedCode*(trie: AccountsTrie, address: EthAddress) =
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if shouldDoAssertionsForMissingNodes:
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let m = maybeGetCode(trie, address)
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doAssert(m.isSome, "missing code for account at " & $(address))
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proc ifNodesExistGetStorageWithinAccount*(storageTrie: StorageTrie, slot: UInt256): Option[UInt256] =
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ifNodesExistGetStorageBytesWithinAccount(storageTrie, createTrieKeyFromSlot(slot)).map(slotValueFromBytes)
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proc ifNodesExistGetStorage*(trie: AccountsTrie, address: EthAddress, slot: UInt256): Option[UInt256] =
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let maybeAcc = ifNodesExistGetAccount(trie, address)
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if maybeAcc.isNone:
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none[UInt256]()
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else:
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ifNodesExistGetStorageWithinAccount(storageTrieForAccount(trie, maybeAcc.get), slot)
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proc hasAllNodesForAccount*(trie: AccountsTrie, address: EthAddress): bool =
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ifNodesExistGetAccountBytes(trie, address).isSome
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proc hasAllNodesForCode*(trie: AccountsTrie, address: EthAddress): bool =
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maybeGetCode(trie, address).isSome
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proc hasAllNodesForStorageSlot*(trie: AccountsTrie, address: EthAddress, slot: UInt256): bool =
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ifNodesExistGetStorage(trie, address, slot).isSome
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proc assertFetchedStorage*(trie: AccountsTrie, address: EthAddress, slot: UInt256) =
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doAssert(hasAllNodesForStorageSlot(trie, address, slot))
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