nimbus-eth1/nimbus/db/aristo/aristo_constants.nim

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Nim

# nimbus-eth1
# Copyright (c) 2021 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed
# except according to those terms.
{.push raises: [].}
import
eth/[common, trie/nibbles],
./aristo_desc/aristo_types_identifiers
const
EmptyBlob* = seq[byte].default
## Useful shortcut (borrowed from `sync/snap/constants.nim`)
EmptyNibbleSeq* = EmptyBlob.initNibbleRange
## Useful shortcut (borrowed from `sync/snap/constants.nim`)
VOID_CODE_KEY* = EMPTY_CODE_HASH.to(HashKey)
## Equivalent of `nil` for `Account` object code hash
VOID_HASH_KEY* = EMPTY_ROOT_HASH.to(HashKey)
## Equivalent of `nil` for Merkle hash ket
VOID_HASH_LABEL* = HashLabel(root: VertexID(0), key: VOID_HASH_KEY)
# End