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6bd6bae86c
Since these types were written, we've gained an executable spec: https://github.com/ethereum/execution-specs This PR aligns some of the types we use with this spec to simplify comparisons and cross-referencing. Using a `distinct` type is a tradeoff between nim ergonomics, type safety and the ability to work around nim quirks and stdlib weaknesses. In particular, it allows us to overload common functions such as `hash` with correct and performant versions as well as maintain control over string conversions etc at the cost of a little bit of ceremony when instantiating them. Apart from distinct byte types, `Hash32`, is introduced in lieu of the existing `Hash256`, again aligning this commonly used type with the spec which picks bytes rather than bits in the name.
35 lines
1012 B
Nim
35 lines
1012 B
Nim
# eth
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# Copyright (c) 2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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# Minimal compatibility layer with earlier versions of this file, to be removed
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# when users have upgraded
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{.deprecated.}
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import ./[addresses, hashes]
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export hashes
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from nimcrypto import MDigest
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type
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Hash256* {.deprecated.} = Hash32
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KeccakHash* {.deprecated.} = Hash32
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template keccakHash*(v: openArray[byte]): Hash32 {.deprecated.} =
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keccak256(v)
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template keccakHash*(v: Address): Hash32 {.deprecated.} =
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keccak256(v.data)
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from nimcrypto/hash import MDigest
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converter toMDigest*(v: Hash32): MDigest[256] {.deprecated.} =
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MDigest[256](data: v.data)
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