61 lines
2.4 KiB
Nim
61 lines
2.4 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2022 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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when (NimMajor, NimMinor) < (1, 4):
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{.push raises: [Defect].}
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else:
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{.push raises: [].}
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# This module exports SSZ.encode and SSZ.decode for spec types - don't use
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# ssz_serialization directly! To bypass root updates, use `readSszBytes`
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# without involving SSZ!
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import
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ssz_serialization,
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./ssz_codec,
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./datatypes/[phase0, altair, bellatrix],
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./eth2_merkleization
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export phase0, altair, ssz_codec, ssz_serialization, eth2_merkleization
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proc readAndUpdateRoot(data: openArray[byte], val: var auto, updateRoot = true) {.
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raises: [Defect, MalformedSszError, SszSizeMismatchError].} =
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readSszValue(data, val)
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if updateRoot:
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val.root = hash_tree_root(val.message)
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# TODO this is an ugly way to get a stronger match than the generic readSszBytes
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# and avoid ambiguities - `var` + typeclasses are problematic
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template readSszBytes*(
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data: openArray[byte], val: var phase0.SignedBeaconBlock, updateRoot = true) =
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readAndUpdateRoot(data, val, updateRoot)
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template readSszBytes*(
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data: openArray[byte], val: var phase0.TrustedSignedBeaconBlock, updateRoot = true) =
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readAndUpdateRoot(data, val, updateRoot)
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template readSszBytes*(
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data: openArray[byte], val: var altair.SignedBeaconBlock, updateRoot = true) =
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readAndUpdateRoot(data, val, updateRoot)
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template readSszBytes*(
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data: openArray[byte], val: var altair.TrustedSignedBeaconBlock, updateRoot = true) =
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readAndUpdateRoot(data, val, updateRoot)
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template readSszBytes*(
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data: openArray[byte], val: var bellatrix.SignedBeaconBlock, updateRoot = true) =
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readAndUpdateRoot(data, val, updateRoot)
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template readSszBytes*(
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data: openArray[byte], val: var bellatrix.TrustedSignedBeaconBlock, updateRoot = true) =
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readAndUpdateRoot(data, val, updateRoot)
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template readSszBytes*(
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data: openArray[byte], val: var auto, updateRoot: bool) =
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readSszValue(data, val)
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func readSszBytes(T: type, data: openArray[byte], updateRoot = true): T {.
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raises: [Defect, MalformedSszError, SszSizeMismatchError].} =
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var res: T
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readSszBytes(data, res, updateRoot)
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res
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