refactor(x/mint)!: use KVStoreService and context.Context

CHANGELOG.md

@@ -130,6 +130,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### API Breaking Changes
 
+* (x/mint) [#16179](https://github.com/cosmos/cosmos-sdk/issues/16179) `NewKeeper` now takes a `KVStoreService` instead of a `StoreKey`, and methods in the `Keeper` now take a `context.Context` instead of a `sdk.Context` and return an `error`.
 * (x/crisis) [#16216](https://github.com/cosmos/cosmos-sdk/issues/16216) `NewKeeper` now takes a `KVStoreService` instead of a `StoreKey`, methods in the `Keeper` now take a `context.Context` instead of a `sdk.Context` and return an `error` instead of panicking.
 * (x/gov) [#15988](https://github.com/cosmos/cosmos-sdk/issues/15988) `NewKeeper` now takes a `KVStoreService` instead of a `StoreKey`, methods in the `Keeper` now take a `context.Context` instead of a `sdk.Context` and return an `error` (instead of panicking or returning a `found bool`). Iterators callback functions now return an error instead of a `bool`.
 * (x/auth) [#15985](https://github.com/cosmos/cosmos-sdk/pull/15985) The `AccountKeeper` does not expose the `QueryServer` and `MsgServer` APIs anymore.

UPGRADING.md

@@ -82,6 +82,7 @@ The following modules `NewKeeper` function now take a `KVStoreService` instead o
 * `x/evidence`
 * `x/feegrant`
 * `x/gov`
+* `x/mint`
 * `x/nft`
 
 User manually wiring their chain need to use the `runtime.NewKVStoreService` method to create a `KVStoreService` from a `StoreKey`:
@@ -99,6 +100,7 @@ The following modules' `Keeper` methods now take in a `context.Context` instead
 
 * `x/authz`
 * `x/bank`
+* `x/mint`
 * `x/crisis`
 * `x/distribution`
 * `x/evidence`

simapp/app.go

@@ -281,7 +281,7 @@ func NewSimApp(
 	app.StakingKeeper = stakingkeeper.NewKeeper(
 		appCodec, keys[stakingtypes.StoreKey], app.AccountKeeper, app.BankKeeper, authtypes.NewModuleAddress(govtypes.ModuleName).String(),
 	)
-	app.MintKeeper = mintkeeper.NewKeeper(appCodec, keys[minttypes.StoreKey], app.StakingKeeper, app.AccountKeeper, app.BankKeeper, authtypes.FeeCollectorName, authtypes.NewModuleAddress(govtypes.ModuleName).String())
+	app.MintKeeper = mintkeeper.NewKeeper(appCodec, runtime.NewKVStoreService(keys[minttypes.StoreKey]), app.StakingKeeper, app.AccountKeeper, app.BankKeeper, authtypes.FeeCollectorName, authtypes.NewModuleAddress(govtypes.ModuleName).String())
 
 	app.DistrKeeper = distrkeeper.NewKeeper(appCodec, runtime.NewKVStoreService(keys[distrtypes.StoreKey]), app.AccountKeeper, app.BankKeeper, app.StakingKeeper, authtypes.FeeCollectorName, authtypes.NewModuleAddress(govtypes.ModuleName).String())
 

testutil/integration/example_test.go

@@ -53,7 +53,7 @@ func Example() {
 
 	// here bankkeeper and staking keeper is nil because we are not testing them
 	// subspace is nil because we don't test params (which is legacy anyway)
-	mintKeeper := mintkeeper.NewKeeper(encodingCfg.Codec, keys[minttypes.StoreKey], nil, accountKeeper, nil, authtypes.FeeCollectorName, authority)
+	mintKeeper := mintkeeper.NewKeeper(encodingCfg.Codec, runtime.NewKVStoreService(keys[minttypes.StoreKey]), nil, accountKeeper, nil, authtypes.FeeCollectorName, authority)
 	mintModule := mint.NewAppModule(encodingCfg.Codec, mintKeeper, accountKeeper, nil, nil)
 
 	// create the application and register all the modules from the previous step
@@ -98,7 +98,11 @@ func Example() {
 	sdkCtx := sdk.UnwrapSDKContext(integrationApp.Context())
 
 	// we should also check the state of the application
-	got := mintKeeper.GetParams(sdkCtx)
+	got, err := mintKeeper.GetParams(sdkCtx)
+	if err != nil {
+		panic(err)
+	}
+
 	if diff := cmp.Diff(got, params); diff != "" {
 		panic(diff)
 	}

x/mint/abci.go

@@ -1,6 +1,7 @@
 package mint
 
 import (
+	"context"
 	"time"
 
 	"github.com/cosmos/cosmos-sdk/telemetry"
@@ -10,12 +11,19 @@ import (
 )
 
 // BeginBlocker mints new tokens for the previous block.
-func BeginBlocker(ctx sdk.Context, k keeper.Keeper, ic types.InflationCalculationFn) error {
+func BeginBlocker(ctx context.Context, k keeper.Keeper, ic types.InflationCalculationFn) error {
 	defer telemetry.ModuleMeasureSince(types.ModuleName, time.Now(), telemetry.MetricKeyBeginBlocker)
 
 	// fetch stored minter & params
-	minter := k.GetMinter(ctx)
-	params := k.GetParams(ctx)
+	minter, err := k.GetMinter(ctx)
+	if err != nil {
+		return err
+	}
+
+	params, err := k.GetParams(ctx)
+	if err != nil {
+		return err
+	}
 
 	// recalculate inflation rate
 	totalStakingSupply := k.StakingTokenSupply(ctx)
@@ -28,7 +36,7 @@ func BeginBlocker(ctx sdk.Context, k keeper.Keeper, ic types.InflationCalculatio
 	mintedCoin := minter.BlockProvision(params)
 	mintedCoins := sdk.NewCoins(mintedCoin)
 
-	err := k.MintCoins(ctx, mintedCoins)
+	err = k.MintCoins(ctx, mintedCoins)
 	if err != nil {
 		return err
 	}
@@ -43,7 +51,8 @@ func BeginBlocker(ctx sdk.Context, k keeper.Keeper, ic types.InflationCalculatio
 		defer telemetry.ModuleSetGauge(types.ModuleName, float32(mintedCoin.Amount.Int64()), "minted_tokens")
 	}
 
-	ctx.EventManager().EmitEvent(
+	sdkCtx := sdk.UnwrapSDKContext(ctx)
+	sdkCtx.EventManager().EmitEvent(
 		sdk.NewEvent(
 			types.EventTypeMint,
 			sdk.NewAttribute(types.AttributeKeyBondedRatio, bondedRatio.String()),

x/mint/keeper/genesis.go

@@ -18,7 +18,15 @@ func (keeper Keeper) InitGenesis(ctx sdk.Context, ak types.AccountKeeper, data *
 
 // ExportGenesis returns a GenesisState for a given context and keeper.
 func (keeper Keeper) ExportGenesis(ctx sdk.Context) *types.GenesisState {
-	minter := keeper.GetMinter(ctx)
-	params := keeper.GetParams(ctx)
+	minter, err := keeper.GetMinter(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	params, err := keeper.GetParams(ctx)
+	if err != nil {
+		panic(err)
+	}
+
 	return types.NewGenesisState(minter, params)
 }

x/mint/keeper/genesis_test.go

@@ -10,6 +10,7 @@ import (
 	storetypes "cosmossdk.io/store/types"
 
 	"github.com/cosmos/cosmos-sdk/codec"
+	"github.com/cosmos/cosmos-sdk/runtime"
 	"github.com/cosmos/cosmos-sdk/testutil"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
@@ -54,7 +55,7 @@ func (s *GenesisTestSuite) SetupTest() {
 	accountKeeper.EXPECT().GetModuleAddress(minterAcc.Name).Return(minterAcc.GetAddress())
 	accountKeeper.EXPECT().GetModuleAccount(s.sdkCtx, minterAcc.Name).Return(minterAcc)
 
-	s.keeper = keeper.NewKeeper(s.cdc, key, stakingKeeper, accountKeeper, bankKeeper, "", "")
+	s.keeper = keeper.NewKeeper(s.cdc, runtime.NewKVStoreService(key), stakingKeeper, accountKeeper, bankKeeper, "", "")
 }
 
 func (s *GenesisTestSuite) TestImportExportGenesis() {
@@ -71,13 +72,17 @@ func (s *GenesisTestSuite) TestImportExportGenesis() {
 
 	s.keeper.InitGenesis(s.sdkCtx, s.accountKeeper, genesisState)
 
-	minter := s.keeper.GetMinter(s.sdkCtx)
+	minter, err := s.keeper.GetMinter(s.sdkCtx)
 	s.Require().Equal(genesisState.Minter, minter)
+	s.Require().NoError(err)
 
 	invalidCtx := testutil.DefaultContextWithDB(s.T(), s.key, storetypes.NewTransientStoreKey("transient_test"))
-	s.Require().Panics(func() { s.keeper.GetMinter(invalidCtx.Ctx) }, "stored minter should not have been nil")
-	params := s.keeper.GetParams(s.sdkCtx)
+	_, err = s.keeper.GetMinter(invalidCtx.Ctx)
+	s.Require().EqualError(err, "stored minter should not have been nil")
+
+	params, err := s.keeper.GetParams(s.sdkCtx)
 	s.Require().Equal(genesisState.Params, params)
+	s.Require().NoError(err)
 
 	genesisState2 := s.keeper.ExportGenesis(s.sdkCtx)
 	s.Require().Equal(genesisState, genesisState2)

x/mint/keeper/grpc_query.go

@@ -12,23 +12,32 @@ var _ types.QueryServer = Keeper{}
 // Params returns params of the mint module.
 func (k Keeper) Params(c context.Context, _ *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
 	ctx := sdk.UnwrapSDKContext(c)
-	params := k.GetParams(ctx)
+	params, err := k.GetParams(ctx)
+	if err != nil {
+		return nil, err
+	}
 
 	return &types.QueryParamsResponse{Params: params}, nil
 }
 
 // Inflation returns minter.Inflation of the mint module.
 func (k Keeper) Inflation(c context.Context, _ *types.QueryInflationRequest) (*types.QueryInflationResponse, error) {
 	ctx := sdk.UnwrapSDKContext(c)
-	minter := k.GetMinter(ctx)
+	minter, err := k.GetMinter(ctx)
+	if err != nil {
+		return nil, err
+	}
 
 	return &types.QueryInflationResponse{Inflation: minter.Inflation}, nil
 }
 
 // AnnualProvisions returns minter.AnnualProvisions of the mint module.
 func (k Keeper) AnnualProvisions(c context.Context, _ *types.QueryAnnualProvisionsRequest) (*types.QueryAnnualProvisionsResponse, error) {
 	ctx := sdk.UnwrapSDKContext(c)
-	minter := k.GetMinter(ctx)
+	minter, err := k.GetMinter(ctx)
+	if err != nil {
+		return nil, err
+	}
 
 	return &types.QueryAnnualProvisionsResponse{AnnualProvisions: minter.AnnualProvisions}, nil
 }

x/mint/keeper/grpc_query_test.go

@@ -10,6 +10,7 @@ import (
 	storetypes "cosmossdk.io/store/types"
 
 	"github.com/cosmos/cosmos-sdk/baseapp"
+	"github.com/cosmos/cosmos-sdk/runtime"
 	"github.com/cosmos/cosmos-sdk/testutil"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	moduletestutil "github.com/cosmos/cosmos-sdk/types/module/testutil"
@@ -32,6 +33,7 @@ type MintTestSuite struct {
 func (suite *MintTestSuite) SetupTest() {
 	encCfg := moduletestutil.MakeTestEncodingConfig(mint.AppModuleBasic{})
 	key := storetypes.NewKVStoreKey(types.StoreKey)
+	storeService := runtime.NewKVStoreService(key)
 	testCtx := testutil.DefaultContextWithDB(suite.T(), key, storetypes.NewTransientStoreKey("transient_test"))
 	suite.ctx = testCtx.Ctx
 
@@ -45,7 +47,7 @@ func (suite *MintTestSuite) SetupTest() {
 
 	suite.mintKeeper = keeper.NewKeeper(
 		encCfg.Codec,
-		key,
+		storeService,
 		stakingKeeper,
 		accountKeeper,
 		bankKeeper,
@@ -66,15 +68,19 @@ func (suite *MintTestSuite) SetupTest() {
 func (suite *MintTestSuite) TestGRPCParams() {
 	params, err := suite.queryClient.Params(gocontext.Background(), &types.QueryParamsRequest{})
 	suite.Require().NoError(err)
-	suite.Require().Equal(params.Params, suite.mintKeeper.GetParams(suite.ctx))
+	kparams, err := suite.mintKeeper.GetParams(suite.ctx)
+	suite.Require().NoError(err)
+	suite.Require().Equal(params.Params, kparams)
 
 	inflation, err := suite.queryClient.Inflation(gocontext.Background(), &types.QueryInflationRequest{})
 	suite.Require().NoError(err)
-	suite.Require().Equal(inflation.Inflation, suite.mintKeeper.GetMinter(suite.ctx).Inflation)
+	minter, err := suite.mintKeeper.GetMinter(suite.ctx)
+	suite.Require().NoError(err)
+	suite.Require().Equal(inflation.Inflation, minter.Inflation)
 
 	annualProvisions, err := suite.queryClient.AnnualProvisions(gocontext.Background(), &types.QueryAnnualProvisionsRequest{})
 	suite.Require().NoError(err)
-	suite.Require().Equal(annualProvisions.AnnualProvisions, suite.mintKeeper.GetMinter(suite.ctx).AnnualProvisions)
+	suite.Require().Equal(annualProvisions.AnnualProvisions, minter.AnnualProvisions)
 }
 
 func TestMintTestSuite(t *testing.T) {