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avoid nimZeroMem and stack usage in is_merge_transition_complete and is_merge_transition_block (#3399)

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tersec 2022-02-16 07:16:01 +00:00 committed by GitHub
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commit 254e0fe2e2
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1 changed files with 4 additions and 2 deletions
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6
beacon_chain/spec/helpers.nim
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@ -482,15 +482,17 @@ func get_subtree_index*(idx: GeneralizedIndex): uint64 =
# https://github.com/ethereum/consensus-specs/blob/v1.1.9/specs/bellatrix/beacon-chain.md#is_merge_transition_complete
func is_merge_transition_complete*(state: bellatrix.BeaconState): bool =
state.latest_execution_payload_header != default(ExecutionPayloadHeader)
const defaultExecutionPayloadHeader = default(ExecutionPayloadHeader)
state.latest_execution_payload_header != defaultExecutionPayloadHeader
# https://github.com/ethereum/consensus-specs/blob/v1.1.9/specs/bellatrix/beacon-chain.md#is_merge_transition_block
func is_merge_transition_block(
state: bellatrix.BeaconState,
body: bellatrix.BeaconBlockBody | bellatrix.TrustedBeaconBlockBody |
bellatrix.SigVerifiedBeaconBlockBody): bool =
const defaultBellatrixExecutionPayload = default(bellatrix.ExecutionPayload)
not is_merge_transition_complete(state) and
body.execution_payload != default(bellatrix.ExecutionPayload)
body.execution_payload != defaultBellatrixExecutionPayload
# https://github.com/ethereum/consensus-specs/blob/v1.1.9/specs/bellatrix/beacon-chain.md#is_execution_enabled
func is_execution_enabled*(