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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.
57 lines
1.6 KiB
Nim
57 lines
1.6 KiB
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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import "."/[addresses, base, hashes, transactions]
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export addresses, base, hash, transactions
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type
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Topic* = Bytes32
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# topic can be Hash32 or zero padded bytes array
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Log* = object
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address*: Address
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topics*: seq[Topic]
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data*: seq[byte]
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# easily convertible between
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# ReceiptType and TxType
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ReceiptType* = TxType
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# LegacyReceipt = TxLegacy
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# Eip2930Receipt = TxEip2930
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# Eip1559Receipt = TxEip1559
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# Eip4844Receipt = TxEip4844
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# Eip7702Receipt = TxEip7702
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Receipt* = object
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receiptType* : ReceiptType
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isHash* : bool # hash or status
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status* : bool # EIP-658
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hash* : Hash32
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cumulativeGasUsed*: GasInt
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logsBloom* : Bloom
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logs* : seq[Log]
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const
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LegacyReceipt* = TxLegacy
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Eip2930Receipt* = TxEip2930
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Eip1559Receipt* = TxEip1559
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Eip4844Receipt* = TxEip4844
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Eip7702Receipt* = TxEip7702
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func hasStatus*(rec: Receipt): bool {.inline.} =
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rec.isHash == false
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func hasStateRoot*(rec: Receipt): bool {.inline.} =
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rec.isHash == true
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func stateRoot*(rec: Receipt): Hash32 {.inline.} =
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doAssert(rec.hasStateRoot)
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rec.hash
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