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module.go
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module.go
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// Package distribution defines the distribution module.
package distribution
import (
"encoding/json"
"math/rand"
"github.com/gorilla/mux"
"github.com/spf13/cobra"
abci "github.com/tendermint/tendermint/abci/types"
"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/cosmos-sdk/x/distribution"
"github.com/cosmos/cosmos-sdk/x/distribution/simulation"
"github.com/cosmos/cosmos-sdk/x/distribution/types"
sim "github.com/cosmos/cosmos-sdk/x/simulation"
"github.com/cosmos/cosmos-sdk/x/staking"
)
var (
_ module.AppModule = AppModule{}
_ module.AppModuleBasic = AppModuleBasic{}
)
// AppModuleBasic defines the basic application module used by the distribution module.
type AppModuleBasic struct{}
var _ module.AppModuleBasic = AppModuleBasic{}
// Name returns the distribution module's name.
func (AppModuleBasic) Name() string {
return distribution.AppModuleBasic{}.Name()
}
// RegisterCodec registers the distribution module's types for the given codec.
func (AppModuleBasic) RegisterCodec(cdc *codec.Codec) {
distribution.RegisterCodec(cdc)
}
// DefaultGenesis returns default genesis state as raw bytes for the distribution module.
func (AppModuleBasic) DefaultGenesis() json.RawMessage {
defaultGenesisState := distribution.DefaultGenesisState()
defaultGenesisState.Params.CommunityTax = sdk.NewDecWithPrec(0, 2) // 0%
return distribution.ModuleCdc.MustMarshalJSON(defaultGenesisState)
}
// ValidateGenesis performs genesis state validation for the distribution module.
func (AppModuleBasic) ValidateGenesis(bz json.RawMessage) error {
return distribution.AppModuleBasic{}.ValidateGenesis(bz)
}
// RegisterRESTRoutes registers the REST routes for the distribution module.
func (AppModuleBasic) RegisterRESTRoutes(cliCtx context.CLIContext, route *mux.Router) {
distribution.AppModuleBasic{}.RegisterRESTRoutes(cliCtx, route)
}
// GetTxCmd returns the root tx command for the distribution module.
func (AppModuleBasic) GetTxCmd(cdc *codec.Codec) *cobra.Command {
return distribution.AppModuleBasic{}.GetTxCmd(cdc)
}
// GetQueryCmd returns the root query command for the distribution module.
func (AppModuleBasic) GetQueryCmd(cdc *codec.Codec) *cobra.Command {
return distribution.AppModuleBasic{}.GetQueryCmd(cdc)
}
// AppModule implements an application module for the distribution module.
type AppModule struct {
AppModuleBasic
cosmosAppModule distribution.AppModule
keeper distribution.Keeper
}
// NewAppModule creates a new AppModule object.
func NewAppModule(
distrKeeper distribution.Keeper,
accountKeeper types.AccountKeeper,
supplyKeeper types.SupplyKeeper,
stakingKeeper staking.Keeper,
) AppModule {
return AppModule{
AppModuleBasic: AppModuleBasic{},
cosmosAppModule: distribution.NewAppModule(distrKeeper, accountKeeper, supplyKeeper, stakingKeeper),
keeper: distrKeeper,
}
}
// Name returns the distribution module's name.
func (am AppModule) Name() string {
return am.cosmosAppModule.Name()
}
// RegisterInvariants registers the distribution module invariants.
func (am AppModule) RegisterInvariants(ir sdk.InvariantRegistry) {
am.cosmosAppModule.RegisterInvariants(ir)
}
// Route returns the message routing key for the distribution module.
func (am AppModule) Route() string {
return am.cosmosAppModule.Route()
}
// NewHandler returns an sdk.Handler for the distribution module.
func (am AppModule) NewHandler() sdk.Handler {
return am.cosmosAppModule.NewHandler()
}
// QuerierRoute returns the distribution module's querier route name.
func (am AppModule) QuerierRoute() string { return am.cosmosAppModule.QuerierRoute() }
// NewQuerierHandler returns the distribution module sdk.Querier.
func (am AppModule) NewQuerierHandler() sdk.Querier { return am.cosmosAppModule.NewQuerierHandler() }
// InitGenesis performs genesis initialization for the distribution module.
func (am AppModule) InitGenesis(ctx sdk.Context, data json.RawMessage) []abci.ValidatorUpdate {
return am.cosmosAppModule.InitGenesis(ctx, data)
}
// ExportGenesis returns the exported genesis state as raw bytes for the distribution module.
func (am AppModule) ExportGenesis(ctx sdk.Context) json.RawMessage {
return am.cosmosAppModule.ExportGenesis(ctx)
}
// BeginBlock implements the Cosmos SDK BeginBlock module function.
func (am AppModule) BeginBlock(ctx sdk.Context, rbb abci.RequestBeginBlock) {
am.cosmosAppModule.BeginBlock(ctx, rbb)
}
// EndBlock implements the Cosmos SDK EndBlock module function.
func (am AppModule) EndBlock(ctx sdk.Context, rbb abci.RequestEndBlock) []abci.ValidatorUpdate {
return am.cosmosAppModule.EndBlock(ctx, rbb)
}
//____________________________________________________________________________
// AppModuleSimulation functions
// GenerateGenesisState creates a randomized GenState of the distribution module.
func (AppModule) GenerateGenesisState(simState *module.SimulationState) {
simulation.RandomizedGenState(simState)
}
// ProposalContents returns all the distribution content functions used to simulate governance proposals.
func (am AppModule) ProposalContents(_ module.SimulationState) []sim.WeightedProposalContent {
return simulation.ProposalContents(am.keeper)
}
// RandomizedParams creates randomized distribution param changes for the simulator.
func (AppModule) RandomizedParams(r *rand.Rand) []sim.ParamChange {
return simulation.ParamChanges(r)
}
// RegisterStoreDecoder registers a decoder for distribution module's types
func (AppModule) RegisterStoreDecoder(sdr sdk.StoreDecoderRegistry) {
sdr[StoreKey] = simulation.DecodeStore
}
// WeightedOperations returns the all the distribution module operations with their respective weights.
func (am AppModule) WeightedOperations(simState module.SimulationState) []sim.WeightedOperation {
return am.cosmosAppModule.WeightedOperations(simState)
}