cosmos-sdk/x/bank/keeper/genesis.go

79 lines
2.0 KiB
Go

package keeper
import (
"context"
"fmt"
"cosmossdk.io/collections"
"cosmossdk.io/x/bank/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/query"
)
// InitGenesis initializes the bank module's state from a given genesis state.
func (k BaseKeeper) InitGenesis(ctx context.Context, genState *types.GenesisState) error {
var err error
if err = k.SetParams(ctx, genState.Params); err != nil {
return err
}
for _, se := range genState.GetAllSendEnabled() {
k.SetSendEnabled(ctx, se.Denom, se.Enabled)
}
totalSupplyMap := sdk.NewMapCoins(sdk.Coins{})
genState.Balances, err = types.SanitizeGenesisBalances(genState.Balances, k.addrCdc)
if err != nil {
return err
}
for _, balance := range genState.Balances {
addr := balance.GetAddress()
bz, err := k.addrCdc.StringToBytes(addr)
if err != nil {
return err
}
for _, coin := range balance.Coins {
err := k.Balances.Set(ctx, collections.Join(sdk.AccAddress(bz), coin.Denom), coin.Amount)
if err != nil {
return err
}
}
totalSupplyMap.Add(balance.Coins...)
}
totalSupply := totalSupplyMap.ToCoins()
if !genState.Supply.Empty() && !genState.Supply.Equal(totalSupply) {
return fmt.Errorf("genesis supply is incorrect, expected %v, got %v", genState.Supply, totalSupply)
}
for _, supply := range totalSupply {
k.setSupply(ctx, supply)
}
for _, meta := range genState.DenomMetadata {
k.SetDenomMetaData(ctx, meta)
}
return nil
}
// ExportGenesis returns the bank module's genesis state.
func (k BaseKeeper) ExportGenesis(ctx context.Context) (*types.GenesisState, error) {
totalSupply, _, err := k.GetPaginatedTotalSupply(ctx, &query.PageRequest{Limit: query.PaginationMaxLimit})
if err != nil {
return nil, fmt.Errorf("unable to fetch total supply %w", err)
}
rv := types.NewGenesisState(
k.GetParams(ctx),
k.GetAccountsBalances(ctx),
totalSupply,
k.GetAllDenomMetaData(ctx),
k.GetAllSendEnabledEntries(ctx),
)
return rv, nil
}