Introduced IncrementalStake, for all Eras #2538
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TimSheard
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TimSheard
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eras/shelley-ma/impl/src/Cardano/Ledger/ShelleyMA/Rules/Utxo.hs
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@TimSheard overall this is really awesome!! I made some minor comments.
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eras/shelley/test-suite/src/Test/Cardano/Ledger/Shelley/Rules/TestChain.hs
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eras/shelley-ma/impl/src/Cardano/Ledger/ShelleyMA/Rules/Utxo.hs
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eras/shelley/impl/src/Cardano/Ledger/Shelley/API/ByronTranslation.hs
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@nc6, this is green from benchmarking standpoint. |
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eras/shelley-ma/impl/src/Cardano/Ledger/ShelleyMA/Rules/Utxo.hs
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| -- and combining them with the ordinary stake. Zero out the Ptr indexed stake in the result. | ||
| -- This function is meant to only be called at the Epoch boundary in the Snap Rule. It is not meant | ||
| -- to be used to transform the IncrementalStake. | ||
| resolveIncrementalPtrs :: Map Ptr (Credential 'Staking (Crypto era)) -> IncrementalStake (Crypto era) -> IncrementalStake (Crypto era) |
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Is there a reason in this case for returning IncrementalStake rather than simply Map Credential Coin? I assume we zero out the incremental stuff at the epoch boundary anyway?
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Alternatively, just move this function inside of incrementalStakeDistr, which is the only thing to use it anyway.
| -- the _utxo. This is aways safe to do, but if the _utxo field is big, this can be very expensive, | ||
| -- which defeats the purpose of memoizing the _stakeDistro field. So use of this function should be | ||
| -- restricted to tests and initializations, where the invariant should be maintained. | ||
| smartUTxOState :: |
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Better name? Not that I have any good ideas...
eras/shelley/test-suite/src/Test/Cardano/Ledger/Shelley/Address/Bootstrap.hs
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eras/shelley/test-suite/src/Test/Cardano/Ledger/Shelley/Examples/Consensus.hs
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Incrementally maintains the raw stake distributiona as well as the UTxO
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incrementally maintains the raw stake distribution as well as the UTxO.
Adds InrementalStake field to UTxOState
Utxo rule (Utxos rule in Alonzo) and the Snap rule are modified to use this new state
Added a property test that computes both ways at every Epoch Boundary.