nim-eth/eth/trie/trie_defs.nim

32 lines
1.1 KiB
Nim

import
eth/rlp, ranges/typedranges, nimcrypto/hash
export
typedranges, Bytes
type
KeccakHash* = MDigest[256]
BytesContainer* = ByteRange | Bytes | string
# can't be a const: https://github.com/status-im/nim-eth/issues/6
# we can't initialise it here, but since it's already zeroed memory, we don't need to
var zeroBytesRange* {.threadvar.}: ByteRange
const
blankStringHash* = "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470".toDigest
emptyRlp* = @[128.byte]
emptyRlpHash* = "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421".toDigest
proc read*(rlp: var Rlp, T: typedesc[MDigest]): T {.inline.} =
result.data = rlp.read(type(result.data))
proc append*(rlpWriter: var RlpWriter, a: MDigest) {.inline.} =
rlpWriter.append(a.data)
proc unnecessary_OpenArrayToRange*(key: openarray[byte]): ByteRange =
## XXX: The name of this proc is intentionally long, because it
## performs a memory allocation and data copying that may be eliminated
## in the future. Avoid renaming it to something similar as `toRange`, so
## it can remain searchable in the code.
toRange(@key)