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unhandled exceptions do not modify forkchoice store

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Danny Ryan 2020-06-13 15:59:04 -05:00 committed by GitHub
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specs/phase0/fork-choice.md
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@ -44,9 +44,11 @@ This document is the beacon chain fork choice spec, part of Ethereum 2.0 Phase 0
The head block root associated with a `store` is defined as `get_head(store)`. At genesis, let `store = get_forkchoice_store(genesis_state)` and update `store` by running:
- `on_tick(time)` whenever `time > store.time` where `time` is the current Unix time
- `on_block(block)` whenever a block `block: SignedBeaconBlock` is received
- `on_attestation(attestation)` whenever an attestation `attestation` is received
- `on_tick(store, time)` whenever `time > store.time` where `time` is the current Unix time
- `on_block(store, block)` whenever a block `block: SignedBeaconBlock` is received
- `on_attestation(store, attestation)` whenever an attestation `attestation` is received
Any of the above handlers that trigger an unhandled exception (e.g. a failed assert or an out-of-range list access) are considered invalid. Invalid calls to handlers must not modify `store`.
*Notes*: