laconicd/x/evm/module.go

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package evm
import (
"encoding/json"
"math/big"
"github.com/cosmos/cosmos-sdk/client/context"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/module"
"github.com/cosmos/ethermint/x/evm/client/cli"
"github.com/cosmos/ethermint/x/evm/types"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/gorilla/mux"
"github.com/spf13/cobra"
abci "github.com/tendermint/tendermint/abci/types"
)
var _ module.AppModuleBasic = AppModuleBasic{}
var _ module.AppModule = AppModule{}
// AppModuleBasic struct
type AppModuleBasic struct{}
// Name for app module basic
func (AppModuleBasic) Name() string {
return types.ModuleName
}
// RegisterCodec registers types for module
func (AppModuleBasic) RegisterCodec(cdc *codec.Codec) {
types.RegisterCodec(cdc)
}
// DefaultGenesis is json default structure
func (AppModuleBasic) DefaultGenesis() json.RawMessage {
return types.ModuleCdc.MustMarshalJSON(DefaultGenesisState())
}
// ValidateGenesis is the validation check of the Genesis
func (AppModuleBasic) ValidateGenesis(bz json.RawMessage) error {
var data GenesisState
err := types.ModuleCdc.UnmarshalJSON(bz, &data)
if err != nil {
return err
}
// Once json successfully marshalled, passes along to genesis.go
return ValidateGenesis(data)
}
// RegisterRESTRoutes Registers rest routes
func (AppModuleBasic) RegisterRESTRoutes(ctx context.CLIContext, rtr *mux.Router) {
//rpc.RegisterRoutes(ctx, rtr, StoreKey)
}
// GetQueryCmd Gets the root query command of this module
func (AppModuleBasic) GetQueryCmd(cdc *codec.Codec) *cobra.Command {
return cli.GetQueryCmd(types.ModuleName, cdc)
}
// GetTxCmd Gets the root tx command of this module
func (AppModuleBasic) GetTxCmd(cdc *codec.Codec) *cobra.Command {
return cli.GetTxCmd(types.ModuleName, cdc)
}
// AppModule is struct that defines variables used within module
type AppModule struct {
AppModuleBasic
keeper Keeper
}
// NewAppModule creates a new AppModule Object
func NewAppModule(keeper Keeper) AppModule {
return AppModule{
AppModuleBasic: AppModuleBasic{},
keeper: keeper,
}
}
// Name is module name
func (AppModule) Name() string {
return types.ModuleName
}
// RegisterInvariants interface for registering invariants
func (am AppModule) RegisterInvariants(ir sdk.InvariantRegistry) {}
// Route specifies path for transactions
func (am AppModule) Route() string {
return types.RouterKey
}
// NewHandler sets up a new handler for module
func (am AppModule) NewHandler() sdk.Handler {
return NewHandler(am.keeper)
}
// QuerierRoute sets up path for queries
func (am AppModule) QuerierRoute() string {
return types.ModuleName
}
// NewQuerierHandler sets up new querier handler for module
func (am AppModule) NewQuerierHandler() sdk.Querier {
return NewQuerier(am.keeper)
}
// BeginBlock function for module at start of each block
func (am AppModule) BeginBlock(ctx sdk.Context, bl abci.RequestBeginBlock) {
// Consider removing this when using evm as module without web3 API
bloom := ethtypes.BytesToBloom(am.keeper.bloom.Bytes())
am.keeper.SetBlockBloomMapping(ctx, bloom, bl.Header.GetHeight()-1)
am.keeper.SetBlockHashMapping(ctx, bl.Header.LastBlockId.GetHash(), bl.Header.GetHeight()-1)
am.keeper.bloom = big.NewInt(0)
am.keeper.txCount.reset()
}
// EndBlock function for module at end of block
func (am AppModule) EndBlock(ctx sdk.Context, _ abci.RequestEndBlock) []abci.ValidatorUpdate {
// Gas costs are handled within msg handler so costs should be ignored
ebCtx := ctx.WithBlockGasMeter(sdk.NewInfiniteGasMeter())
// Commit state objects to KV store
_, err := am.keeper.csdb.WithContext(ebCtx).Commit(true)
if err != nil {
panic(err)
}
return []abci.ValidatorUpdate{}
}
// InitGenesis instantiates the genesis state
func (am AppModule) InitGenesis(ctx sdk.Context, data json.RawMessage) []abci.ValidatorUpdate {
var genesisState GenesisState
types.ModuleCdc.MustUnmarshalJSON(data, &genesisState)
return InitGenesis(ctx, am.keeper, genesisState)
}
// ExportGenesis exports the genesis state to be used by daemon
func (am AppModule) ExportGenesis(ctx sdk.Context) json.RawMessage {
gs := ExportGenesis(ctx, am.keeper)
return types.ModuleCdc.MustMarshalJSON(gs)
}