2019-02-05 12:01:10 +00:00
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import
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eth/rlp, ranges/typedranges, nimcrypto/hash
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export
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typedranges, Bytes
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type
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KeccakHash* = MDigest[256]
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BytesContainer* = ByteRange | Bytes | string
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2019-02-15 14:09:25 +00:00
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# can't be a const: https://github.com/status-im/nim-eth/issues/6
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# we can't initialise it here, but since it's already zeroed memory, we don't need to
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var zeroBytesRange* {.threadvar.}: ByteRange
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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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proc unnecessary_OpenArrayToRange*(key: openarray[byte]): ByteRange =
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## XXX: The name of this proc is intentionally long, because it
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## performs a memory allocation and data copying that may be eliminated
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## in the future. Avoid renaming it to something similar as `toRange`, so
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## it can remain searchable in the code.
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toRange(@key)
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