2019-02-05 12:01:10 +00:00
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import
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2021-04-06 11:33:24 +00:00
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nimcrypto/hash,
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../rlp
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2019-02-05 12:01:10 +00:00
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type
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KeccakHash* = MDigest[256]
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2020-02-05 12:29:54 +00:00
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TrieError* = object of CatchableError
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# A common base type of all Trie errors.
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PersistenceFailure* = object of TrieError
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# The backing database of the trie was not able to carry out
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# the storage or retrieval request.
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CorruptedTrieDatabase* = object of Defect
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# We consider this a Defect, because the software cannot safely
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# operate if its database has been tampered with. A swift crash
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# will be a more appropriate response.
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2019-02-05 12:01:10 +00:00
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const
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blankStringHash* = "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470".toDigest
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emptyRlp* = @[128.byte]
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emptyRlpHash* = "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421".toDigest
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proc read*(rlp: var Rlp, T: typedesc[MDigest]): T {.inline.} =
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result.data = rlp.read(type(result.data))
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proc append*(rlpWriter: var RlpWriter, a: MDigest) {.inline.} =
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rlpWriter.append(a.data)
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