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fix(x/slashing/keeper): hoist non-changing addresses parsing out of redelegation loop #18035

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Oct 10, 2023
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fix(x/slashing/keeper): hoist non-changing addresses parsing out of redelegation loop #18035

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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,7 @@ Ref: https://keepachangelog.com/en/1.0.0/

### Improvements

* (x/staking/keeper) [#18035](https://github.com/cosmos/cosmos-sdk/pull/18035) Hoisted out of the redelegation loop, the non-changing validator and delegator addresses parsing.
* (keyring) [#17913](https://github.com/cosmos/cosmos-sdk/pull/17913) Add `NewAutoCLIKeyring` for creating an AutoCLI keyring from a SDK keyring.
* (codec) [#17913](https://github.com/cosmos/cosmos-sdk/pull/17913) `codectypes.NewAnyWithValue` supports proto v2 messages.
* (client) [#17503](https://github.com/cosmos/cosmos-sdk/pull/17503) Add `client.Context{}.WithAddressCodec`, `WithValidatorAddressCodec`, `WithConsensusAddressCodec` to provide address codecs to the client context. See the [UPGRADING.md](./UPGRADING.md) for more details.
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21 changes: 11 additions & 10 deletions x/staking/keeper/slash.go
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Expand Up @@ -287,6 +287,16 @@ func (k Keeper) SlashRedelegation(ctx context.Context, srcValidator types.Valida
totalSlashAmount = math.ZeroInt()
bondedBurnedAmount, notBondedBurnedAmount := math.ZeroInt(), math.ZeroInt()

valDstAddr, err := k.validatorAddressCodec.StringToBytes(redelegation.ValidatorDstAddress)
if err != nil {
return math.ZeroInt(), fmt.Errorf("SlashRedelegation: could not parse validator destination address: %w", err)
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Thank you for adding context to the errors 🙏🏾

}

delegatorAddress, err := k.authKeeper.AddressCodec().StringToBytes(redelegation.DelegatorAddress)
if err != nil {
return math.ZeroInt(), fmt.Errorf("SlashRedelegation: could not parse delegator address: %w", err)
}

// perform slashing on all entries within the redelegation
for _, entry := range redelegation.Entries {
// If redelegation started before this height, stake didn't contribute to infraction
Expand All @@ -310,16 +320,7 @@ func (k Keeper) SlashRedelegation(ctx context.Context, srcValidator types.Valida
continue
}

valDstAddr, err := k.validatorAddressCodec.StringToBytes(redelegation.ValidatorDstAddress)
if err != nil {
panic(err)
}

delegatorAddress, err := k.authKeeper.AddressCodec().StringToBytes(redelegation.DelegatorAddress)
if err != nil {
panic(err)
}

// Delegations can be dynamic hence need to be looked up on every redelegation entry loop.
delegation, err := k.Delegations.Get(ctx, collections.Join(sdk.AccAddress(delegatorAddress), sdk.ValAddress(valDstAddr)))
if err != nil {
// If deleted, delegation has zero shares, and we can't unbond any more
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