types

Documentation

Index

• Constants
• Variables
• func ParamKeyTable() params.KeyTable
• func ValidateGenesis(data GenesisState) error
• func ValidateMinter(minter Minter) error
• type GenesisState
  • func DefaultGenesisState() GenesisState
  • func NewGenesisState(minter Minter, params Params) GenesisState
• type Minter
  • func DefaultInitialMinter() Minter
  • func InitialMinter(inflation sdk.Dec) Minter
  • func NewMinter(inflation, annualProvisions sdk.Dec) Minter
  • func (m Minter) BlockProvision(params Params) sdk.Coin
  • func (m Minter) NextAnnualProvisions(_ Params, totalSupply sdk.Int) sdk.Dec
  • func (m Minter) NextInflationRate(params Params, bondedRatio sdk.Dec) sdk.Dec
• type Params
  • func DefaultParams() Params
  • func NewParams(mintDenom string, ...) Params
  • func (p *Params) ParamSetPairs() params.ParamSetPairs
  • func (p Params) String() string
  • func (p Params) Validate() error
• type StakingKeeper
• type SupplyKeeper

Constants

const (
	EventTypeMint = ModuleName

	AttributeKeyBondedRatio      = "bonded_ratio"
	AttributeKeyInflation        = "inflation"
	AttributeKeyAnnualProvisions = "annual_provisions"
)

Minting module event types

const (
	// module name
	ModuleName = "mint"

	// default paramspace for params keeper
	DefaultParamspace = ModuleName

	// StoreKey is the default store key for mint
	StoreKey = ModuleName

	// QuerierRoute is the querier route for the minting store.
	QuerierRoute = StoreKey

	// Query endpoints supported by the minting querier
	QueryParameters       = "parameters"
	QueryInflation        = "inflation"
	QueryAnnualProvisions = "annual_provisions"
)

nolint

Variables

var (
	KeyMintDenom           = []byte("MintDenom")
	KeyInflationRateChange = []byte("InflationRateChange")
	KeyInflationMax        = []byte("InflationMax")
	KeyInflationMin        = []byte("InflationMin")
	KeyGoalBonded          = []byte("GoalBonded")
	KeyBlocksPerYear       = []byte("BlocksPerYear")
)

Parameter store keys

var MinterKey = []byte{0x00}

the one key to use for the keeper store

var ModuleCdc *codec.Codec

generic sealed codec to be used throughout this module

Functions

func ParamKeyTable

func ParamKeyTable() params.KeyTable

ParamTable for minting module.

func ValidateGenesis

func ValidateGenesis(data GenesisState) error

ValidateGenesis validates the provided genesis state to ensure the expected invariants holds.

func ValidateMinter

func ValidateMinter(minter Minter) error

validate minter

Types

type GenesisState

type GenesisState struct {
	Minter Minter `json:"minter" yaml:"minter"` // minter object
	Params Params `json:"params" yaml:"params"` // inflation params
}

GenesisState - minter state

func DefaultGenesisState

func DefaultGenesisState() GenesisState

DefaultGenesisState creates a default GenesisState object

func NewGenesisState

func NewGenesisState(minter Minter, params Params) GenesisState

NewGenesisState creates a new GenesisState object

type Minter

type Minter struct {
	Inflation        sdk.Dec `json:"inflation" yaml:"inflation"`                 // current annual inflation rate
	AnnualProvisions sdk.Dec `json:"annual_provisions" yaml:"annual_provisions"` // current annual expected provisions
}

Minter represents the minting state.

func DefaultInitialMinter

func DefaultInitialMinter() Minter

DefaultInitialMinter returns a default initial Minter object for a new chain which uses an inflation rate of 13%.

func InitialMinter

func InitialMinter(inflation sdk.Dec) Minter

InitialMinter returns an initial Minter object with a given inflation value.

func NewMinter

func NewMinter(inflation, annualProvisions sdk.Dec) Minter

NewMinter returns a new Minter object with the given inflation and annual provisions values.

func (Minter) BlockProvision

func (m Minter) BlockProvision(params Params) sdk.Coin

BlockProvision returns the provisions for a block based on the annual provisions rate.

func (Minter) NextAnnualProvisions

func (m Minter) NextAnnualProvisions(_ Params, totalSupply sdk.Int) sdk.Dec

NextAnnualProvisions returns the annual provisions based on current total supply and inflation rate.

func (Minter) NextInflationRate

func (m Minter) NextInflationRate(params Params, bondedRatio sdk.Dec) sdk.Dec

NextInflationRate returns the new inflation rate for the next hour.

type Params

type Params struct {
	MintDenom           string  `json:"mint_denom" yaml:"mint_denom"`                       // type of coin to mint
	InflationRateChange sdk.Dec `json:"inflation_rate_change" yaml:"inflation_rate_change"` // maximum annual change in inflation rate
	InflationMax        sdk.Dec `json:"inflation_max" yaml:"inflation_max"`                 // maximum inflation rate
	InflationMin        sdk.Dec `json:"inflation_min" yaml:"inflation_min"`                 // minimum inflation rate
	GoalBonded          sdk.Dec `json:"goal_bonded" yaml:"goal_bonded"`                     // goal of percent bonded atoms
	BlocksPerYear       uint64  `json:"blocks_per_year" yaml:"blocks_per_year"`             // expected blocks per year
}

mint parameters

func DefaultParams

func DefaultParams() Params

default minting module parameters

func NewParams

func NewParams(
	mintDenom string, inflationRateChange, inflationMax, inflationMin, goalBonded sdk.Dec, blocksPerYear uint64,
) Params

func (*Params) ParamSetPairs

func (p *Params) ParamSetPairs() params.ParamSetPairs

Implements params.ParamSet

func (Params) String

func (p Params) String() string

func (Params) Validate

func (p Params) Validate() error

validate params

type StakingKeeper

type StakingKeeper interface {
	StakingTokenSupply(ctx sdk.Context) sdk.Int
	BondedRatio(ctx sdk.Context) sdk.Dec
}

StakingKeeper defines the expected staking keeper

type SupplyKeeper

type SupplyKeeper interface {
	GetModuleAddress(name string) sdk.AccAddress

	// TODO remove with genesis 2-phases refactor https://github.com/cosmos/cosmos-sdk/issues/2862
	SetModuleAccount(sdk.Context, exported.ModuleAccountI)

	SendCoinsFromModuleToAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins) error
	SendCoinsFromModuleToModule(ctx sdk.Context, senderModule, recipientModule string, amt sdk.Coins) error
	MintCoins(ctx sdk.Context, name string, amt sdk.Coins) error
}

SupplyKeeper defines the expected supply keeper