cosmos-sdk/x/staking/keeper/keeper.go
Ivan Verchenko d07e41683a
refactor: Remove store type aliases (#10295)
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## Description

Closes: #9362

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---

### Author Checklist

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please add links to any relevant follow up issues.*

I have...

- [X] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [X] added `!` to the type prefix if API or client breaking change
- [X] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [X] provided a link to the relevant issue or specification
- [X] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [X] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [X] added a changelog entry to `CHANGELOG.md`
- [X] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [X] updated the relevant documentation or specification
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### Reviewers Checklist

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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)
2021-10-04 16:36:38 +00:00

97 lines
2.3 KiB
Go

package keeper
import (
"fmt"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
"github.com/tendermint/tendermint/libs/log"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"github.com/cosmos/cosmos-sdk/x/staking/types"
)
// Implements ValidatorSet interface
var _ types.ValidatorSet = Keeper{}
// Implements DelegationSet interface
var _ types.DelegationSet = Keeper{}
// keeper of the staking store
type Keeper struct {
storeKey storetypes.StoreKey
cdc codec.BinaryCodec
authKeeper types.AccountKeeper
bankKeeper types.BankKeeper
hooks types.StakingHooks
paramstore paramtypes.Subspace
}
// NewKeeper creates a new staking Keeper instance
func NewKeeper(
cdc codec.BinaryCodec, key storetypes.StoreKey, ak types.AccountKeeper, bk types.BankKeeper,
ps paramtypes.Subspace,
) Keeper {
// set KeyTable if it has not already been set
if !ps.HasKeyTable() {
ps = ps.WithKeyTable(types.ParamKeyTable())
}
// ensure bonded and not bonded module accounts are set
if addr := ak.GetModuleAddress(types.BondedPoolName); addr == nil {
panic(fmt.Sprintf("%s module account has not been set", types.BondedPoolName))
}
if addr := ak.GetModuleAddress(types.NotBondedPoolName); addr == nil {
panic(fmt.Sprintf("%s module account has not been set", types.NotBondedPoolName))
}
return Keeper{
storeKey: key,
cdc: cdc,
authKeeper: ak,
bankKeeper: bk,
paramstore: ps,
hooks: nil,
}
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", "x/"+types.ModuleName)
}
// Set the validator hooks
func (k *Keeper) SetHooks(sh types.StakingHooks) *Keeper {
if k.hooks != nil {
panic("cannot set validator hooks twice")
}
k.hooks = sh
return k
}
// Load the last total validator power.
func (k Keeper) GetLastTotalPower(ctx sdk.Context) sdk.Int {
store := ctx.KVStore(k.storeKey)
bz := store.Get(types.LastTotalPowerKey)
if bz == nil {
return sdk.ZeroInt()
}
ip := sdk.IntProto{}
k.cdc.MustUnmarshal(bz, &ip)
return ip.Int
}
// Set the last total validator power.
func (k Keeper) SetLastTotalPower(ctx sdk.Context, power sdk.Int) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshal(&sdk.IntProto{Int: power})
store.Set(types.LastTotalPowerKey, bz)
}