types

package
v0.9.0-rc1 Latest Latest
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 Go to latest Published: Jun 29, 2020 License: Apache-2.0 Imports: 13 Imported by: 13

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Index

Constants

View Source 
const (
	CollateralAuctionType = "collateral"
	SurplusAuctionType    = "surplus"
	DebtAuctionType       = "debt"
	ForwardAuctionPhase   = "forward"
	ReverseAuctionPhase   = "reverse"
)
View Source 
const (
	EventTypeAuctionStart = "auction_start"
	EventTypeAuctionBid   = "auction_bid"
	EventTypeAuctionClose = "auction_close"

	AttributeValueCategory  = ModuleName
	AttributeKeyAuctionID   = "auction_id"
	AttributeKeyAuctionType = "auction_type"
	AttributeKeyBidder      = "bidder"
	AttributeKeyLot         = "lot"
	AttributeKeyMaxBid      = "max_bid"
	AttributeKeyBid         = "bid"
	AttributeKeyEndTime     = "end_time"
	AttributeKeyCloseBlock  = "close_block"
)

Events for the module

View Source 
const (
	// ModuleName The name that will be used throughout the module
	ModuleName = "auction"

	// StoreKey Top level store key where all module items will be stored
	StoreKey = ModuleName

	// RouterKey Top level router key
	RouterKey = ModuleName

	// DefaultParamspace default name for parameter store
	DefaultParamspace = ModuleName

	// QuerierRoute route used for abci queries
	QuerierRoute = ModuleName
)
View Source 
const (
	// DefaultMaxAuctionDuration max length of auction
	DefaultMaxAuctionDuration time.Duration = 2 * 24 * time.Hour
	// DefaultBidDuration how long an auction gets extended when someone bids
	DefaultBidDuration time.Duration = 1 * time.Hour
)

Defaults for auction params

View Source 
const (
	// QueryGetAuction is the query path for querying one auction
	QueryGetAuction = "auction"
	// QueryGetAuctions is the query path for querying all auctions
	QueryGetAuctions = "auctions"
	// QueryGetParams is the query path for querying the global auction params
	QueryGetParams = "params"
)
View Source 
const DefaultNextAuctionID uint64 = 1

DefaultNextAuctionID is the starting poiint for auction IDs.

Variables

View Source 
var (
	// ErrInvalidInitialAuctionID error for when the initial auction ID hasn't been set
	ErrInvalidInitialAuctionID = sdkerrors.Register(ModuleName, 2, "initial auction ID hasn't been set")
	// ErrUnrecognizedAuctionType error for unrecognized auction type
	ErrUnrecognizedAuctionType = sdkerrors.Register(ModuleName, 3, "unrecognized auction type")
	// ErrAuctionNotFound error for when an auction is not found
	ErrAuctionNotFound = sdkerrors.Register(ModuleName, 4, "auction not found")
	// ErrAuctionHasNotExpired error for attempting to close an auction that has not passed its end time
	ErrAuctionHasNotExpired = sdkerrors.Register(ModuleName, 5, "auction can't be closed as curent block time has not passed auction end time")
	// ErrAuctionHasExpired error for when an auction is closed and unavailable for bidding
	ErrAuctionHasExpired = sdkerrors.Register(ModuleName, 6, "auction has closed")
	// ErrInvalidBidDenom error for when bid denom doesn't match auction bid denom
	ErrInvalidBidDenom = sdkerrors.Register(ModuleName, 7, "bid denom doesn't match auction bid denom")
	// ErrInvalidLotDenom error for when lot denom doesn't match auction lot denom
	ErrInvalidLotDenom = sdkerrors.Register(ModuleName, 8, "lot denom doesn't match auction lot denom")
	// ErrBidTooSmall error for when bid is not greater than auction's min bid amount
	ErrBidTooSmall = sdkerrors.Register(ModuleName, 9, "bid is not greater than auction's min new bid amount")
	// ErrBidTooLarge error for when bid is larger than auction's maximum allowed bid
	ErrBidTooLarge = sdkerrors.Register(ModuleName, 10, "bid is greater than auction's max bid")
	// ErrLotTooSmall error for when lot is less than zero
	ErrLotTooSmall = sdkerrors.Register(ModuleName, 11, "lot is not greater than auction's min new lot amount")
	// ErrLotTooLarge error for when lot is not smaller than auction's max new lot amount
	ErrLotTooLarge = sdkerrors.Register(ModuleName, 12, "lot is greater than auction's max new lot amount")
)
View Source 
var (
	AuctionKeyPrefix       = []byte{0x00} // prefix for keys that store auctions
	AuctionByTimeKeyPrefix = []byte{0x01} // prefix for keys that are part of the auctionsByTime index

	NextAuctionIDKey = []byte{0x02} // key for the next auction id
)

Key prefixes

View Source 
var (
	// DefaultIncrement is the smallest percent change a new bid must have from the old one
	DefaultIncrement sdk.Dec = sdk.MustNewDecFromStr("0.05")
	// ParamStoreKeyParams Param store key for auction params
	KeyBidDuration         = []byte("BidDuration")
	KeyMaxAuctionDuration  = []byte("MaxAuctionDuration")
	KeyIncrementSurplus    = []byte("IncrementSurplus")
	KeyIncrementDebt       = []byte("IncrementDebt")
	KeyIncrementCollateral = []byte("IncrementCollateral")
)
View Source 
var DistantFuture = time.Date(9000, 1, 1, 0, 0, 0, 0, time.UTC)

DistantFuture is a very large time value to use as initial the ending time for auctions. It is not set to the max time supported. This can cause problems with time comparisons, see https://stackoverflow.com/a/32620397. Also amino panics when encoding times ≥ the start of year 10000.

View Source 
var ModuleCdc = codec.New()

ModuleCdc module level codec

Functions

func GetAuctionByTimeKey 

func GetAuctionByTimeKey(endTime time.Time, auctionID uint64) []byte

GetAuctionByTimeKey returns the key for iterating auctions by time

func GetAuctionKey 

func GetAuctionKey(auctionID uint64) []byte

GetAuctionKey returns the bytes of an auction key

func ParamKeyTable 

func ParamKeyTable() subspace.KeyTable

ParamKeyTable Key declaration for parameters

func RegisterCodec 

func RegisterCodec(cdc *codec.Codec)

RegisterCodec registers concrete types on the codec.

func Uint64FromBytes 

func Uint64FromBytes(bz []byte) uint64

Uint64FromBytes converts some fixed length bytes back into a uint64.

func Uint64ToBytes 

func Uint64ToBytes(id uint64) []byte

Uint64ToBytes converts a uint64 into fixed length bytes for use in store keys.

Types

type Auction 

type Auction interface {
	GetID() uint64
	WithID(uint64) Auction

	GetInitiator() string
	GetLot() sdk.Coin
	GetBidder() sdk.AccAddress
	GetBid() sdk.Coin
	GetEndTime() time.Time

	GetType() string
	GetPhase() string
}

Auction is an interface for handling common actions on auctions.

type AuctionWithPhase 

type AuctionWithPhase struct {
	Auction Auction `json:"auction" yaml:"auction"`

	Type  string `json:"type" yaml:"type"`
	Phase string `json:"phase" yaml:"phase"`
}

AuctionWithPhase augmented type for collateral auctions which includes auction phase for querying

func NewAuctionWithPhase 

func NewAuctionWithPhase(a Auction) AuctionWithPhase

NewAuctionWithPhase returns new AuctionWithPhase

type Auctions 

type Auctions []Auction

Auctions is a slice of auctions.

type BaseAuction 

type BaseAuction struct {
	ID              uint64         `json:"id" yaml:"id"`
	Initiator       string         `json:"initiator" yaml:"initiator"`                 // Module name that starts the auction. Pays out Lot.
	Lot             sdk.Coin       `json:"lot" yaml:"lot"`                             // Coins that will paid out by Initiator to the winning bidder.
	Bidder          sdk.AccAddress `json:"bidder" yaml:"bidder"`                       // Latest bidder. Receiver of Lot.
	Bid             sdk.Coin       `json:"bid" yaml:"bid"`                             // Coins paid into the auction the bidder.
	HasReceivedBids bool           `json:"has_received_bids" yaml:"has_received_bids"` // Whether the auction has received any bids or not.
	EndTime         time.Time      `json:"end_time" yaml:"end_time"`                   // Current auction closing time. Triggers at the end of the block with time ≥ EndTime.
	MaxEndTime      time.Time      `json:"max_end_time" yaml:"max_end_time"`           // Maximum closing time. Auctions can close before this but never after.
}

BaseAuction is a common type shared by all Auctions.

func (BaseAuction) GetBid 

func (a BaseAuction) GetBid() sdk.Coin

GetBid is a getter for auction Bid.

func (BaseAuction) GetBidder 

func (a BaseAuction) GetBidder() sdk.AccAddress

GetBidder is a getter for auction Bidder.

func (BaseAuction) GetEndTime 

func (a BaseAuction) GetEndTime() time.Time

GetEndTime is a getter for auction end time.

func (BaseAuction) GetID 

func (a BaseAuction) GetID() uint64

GetID is a getter for auction ID.

func (BaseAuction) GetInitiator 

func (a BaseAuction) GetInitiator() string

GetInitiator is a getter for auction Initiator.

func (BaseAuction) GetLot 

func (a BaseAuction) GetLot() sdk.Coin

GetLot is a getter for auction Lot.

func (BaseAuction) GetType 

func (a BaseAuction) GetType() string

GetType returns the auction type. Used to identify auctions in event attributes.

func (BaseAuction) String 

func (a BaseAuction) String() string

func (BaseAuction) Validate 

func (a BaseAuction) Validate() error

Validate verifies that the auction end time is before max end time

type CollateralAuction 

type CollateralAuction struct {
	BaseAuction `json:"base_auction" yaml:"base_auction"`

	CorrespondingDebt sdk.Coin          `json:"corresponding_debt" yaml:"corresponding_debt"`
	MaxBid            sdk.Coin          `json:"max_bid" yaml:"max_bid"`
	LotReturns        WeightedAddresses `json:"lot_returns" yaml:"lot_returns"`
}

CollateralAuction is a two phase auction. Initially, in forward auction phase, bids can be placed up to a max bid. Then it switches to a reverse auction phase, where the initial amount up for auction is bid down. Unsold Lot is sent to LotReturns, being divided among the addresses by weight. Collateral auctions are normally used to sell off collateral seized from CDPs.

func NewCollateralAuction 

func NewCollateralAuction(seller string, lot sdk.Coin, endTime time.Time, maxBid sdk.Coin, lotReturns WeightedAddresses, debt sdk.Coin) CollateralAuction

NewCollateralAuction returns a new collateral auction.

func (CollateralAuction) GetModuleAccountCoins 

func (a CollateralAuction) GetModuleAccountCoins() sdk.Coins

GetModuleAccountCoins returns the total number of coins held in the module account for this auction. It is used in genesis initialize the module account correctly.

func (CollateralAuction) GetPhase 

func (a CollateralAuction) GetPhase() string

GetPhase returns the direction of a collateral auction.

func (CollateralAuction) GetType 

func (a CollateralAuction) GetType() string

GetType returns the auction type. Used to identify auctions in event attributes.

func (CollateralAuction) IsReversePhase 

func (a CollateralAuction) IsReversePhase() bool

IsReversePhase returns whether the auction has switched over to reverse phase or not. CollateralAuctions initially start in forward phase.

func (CollateralAuction) String 

func (a CollateralAuction) String() string

func (CollateralAuction) Validate added in v0.8.0 

func (a CollateralAuction) Validate() error

Validate validates the CollateralAuction fields values.

func (CollateralAuction) WithID 

func (a CollateralAuction) WithID(id uint64) Auction

WithID returns an auction with the ID set.

type DebtAuction 

type DebtAuction struct {
	BaseAuction `json:"base_auction" yaml:"base_auction"`

	CorrespondingDebt sdk.Coin `json:"corresponding_debt" yaml:"corresponding_debt"`
}

DebtAuction is a reverse auction that mints what it pays out. It is normally used to acquire pegged asset to cover the CDP system's debts that were not covered by selling collateral.

func NewDebtAuction 

func NewDebtAuction(buyerModAccName string, bid sdk.Coin, initialLot sdk.Coin, endTime time.Time, debt sdk.Coin) DebtAuction

NewDebtAuction returns a new debt auction.

func (DebtAuction) GetModuleAccountCoins 

func (a DebtAuction) GetModuleAccountCoins() sdk.Coins

GetModuleAccountCoins returns the total number of coins held in the module account for this auction. It is used in genesis initialize the module account correctly.

func (DebtAuction) GetPhase 

func (a DebtAuction) GetPhase() string

GetPhase returns the direction of a debt auction, which never changes.

func (DebtAuction) GetType 

func (a DebtAuction) GetType() string

GetType returns the auction type. Used to identify auctions in event attributes.

func (DebtAuction) Validate added in v0.8.0 

func (a DebtAuction) Validate() error

Validate validates the DebtAuction fields values.

func (DebtAuction) WithID 

func (a DebtAuction) WithID(id uint64) Auction

WithID returns an auction with the ID set.

type GenesisAuction 

type GenesisAuction interface {
	Auction
	GetModuleAccountCoins() sdk.Coins
	Validate() error
}

GenesisAuction is an interface that extends the auction interface to add functionality needed for initializing auctions from genesis.

type GenesisAuctions 

type GenesisAuctions []GenesisAuction

GenesisAuctions is a slice of genesis auctions.

type GenesisState 

type GenesisState struct {
	NextAuctionID uint64          `json:"next_auction_id" yaml:"next_auction_id"`
	Params        Params          `json:"params" yaml:"params"`
	Auctions      GenesisAuctions `json:"auctions" yaml:"auctions"`
}

GenesisState is auction state that must be provided at chain genesis.

func DefaultGenesisState 

func DefaultGenesisState() GenesisState

DefaultGenesisState returns the default genesis state for auction module.

func NewGenesisState 

func NewGenesisState(nextID uint64, ap Params, ga GenesisAuctions) GenesisState

NewGenesisState returns a new genesis state object for auctions module.

func (GenesisState) Equal 

func (gs GenesisState) Equal(gs2 GenesisState) bool

Equal checks whether two GenesisState structs are equivalent.

func (GenesisState) IsEmpty 

func (gs GenesisState) IsEmpty() bool

IsEmpty returns true if a GenesisState is empty.

func (GenesisState) Validate 

func (gs GenesisState) Validate() error

Validate validates genesis inputs. It returns error if validation of any input fails.

type MsgPlaceBid 

type MsgPlaceBid struct {
	AuctionID uint64         `json:"auction_id" yaml:"auction_id"`
	Bidder    sdk.AccAddress `json:"bidder" yaml:"bidder"`
	Amount    sdk.Coin       `json:"amount" yaml:"amount"` // The new bid or lot to be set on the auction.
}

MsgPlaceBid is the message type used to place a bid on any type of auction.

func NewMsgPlaceBid 

func NewMsgPlaceBid(auctionID uint64, bidder sdk.AccAddress, amt sdk.Coin) MsgPlaceBid

NewMsgPlaceBid returns a new MsgPlaceBid.

func (MsgPlaceBid) GetSignBytes 

func (msg MsgPlaceBid) GetSignBytes() []byte

GetSignBytes gets the canonical byte representation of the Msg.

func (MsgPlaceBid) GetSigners 

func (msg MsgPlaceBid) GetSigners() []sdk.AccAddress

GetSigners returns the addresses of signers that must sign.

func (MsgPlaceBid) Route 

func (msg MsgPlaceBid) Route() string

Route return the message type used for routing the message.

func (MsgPlaceBid) String added in v0.8.0 

func (msg MsgPlaceBid) String() string

func (MsgPlaceBid) Type 

func (msg MsgPlaceBid) Type() string

Type returns a human-readable string for the message, intended for utilization within tags.

func (MsgPlaceBid) ValidateBasic 

func (msg MsgPlaceBid) ValidateBasic() error

ValidateBasic does a simple validation check that doesn't require access to state.

type Params 

type Params struct {
	MaxAuctionDuration  time.Duration `json:"max_auction_duration" yaml:"max_auction_duration"` // max length of auction
	BidDuration         time.Duration `json:"bid_duration" yaml:"bid_duration"`                 // additional time added to the auction end time after each bid, capped by the expiry.
	IncrementSurplus    sdk.Dec       `json:"increment_surplus" yaml:"increment_surplus"`       // percentage change (of auc.Bid) required for a new bid on a surplus auction
	IncrementDebt       sdk.Dec       `json:"increment_debt" yaml:"increment_debt"`             // percentage change (of auc.Lot) required for a new bid on a debt auction
	IncrementCollateral sdk.Dec       `json:"increment_collateral" yaml:"increment_collateral"` // percentage change (of auc.Bid or auc.Lot) required for a new bid on a collateral auction
}

Params is the governance parameters for the auction module.

func DefaultParams 

func DefaultParams() Params

DefaultParams returns the default parameters for auctions.

func NewParams 

func NewParams(maxAuctionDuration, bidDuration time.Duration, incrementSurplus, incrementDebt, incrementCollateral sdk.Dec) Params

NewParams returns a new Params object.

func (Params) Equal 

func (p Params) Equal(p2 Params) bool

Equal returns a boolean determining if two Params types are identical.

func (*Params) ParamSetPairs 

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

ParamSetPairs implements the ParamSet interface and returns all the key/value pairs.

func (Params) String 

func (p Params) String() string

String implements stringer interface

func (Params) Validate 

func (p Params) Validate() error

Validate checks that the parameters have valid values.

type QueryAllAuctionParams 

type QueryAllAuctionParams struct {
	Page  int    `json:"page" yaml:"page"`
	Limit int    `json:"limit" yaml:"limit"`
	Type  string `json:"type" yaml:"type"`
	Denom string `json:"denom" yaml:"denom"`
	Phase string `json:"phase" yaml:"phase"`
}

QueryAllAuctionParams is the params for an auctions query

func NewQueryAllAuctionParams 

func NewQueryAllAuctionParams(page, limit int, aucType, aucDenom, aucPhase string) QueryAllAuctionParams

NewQueryAllAuctionParams creates a new QueryAllAuctionParams

type QueryAuctionParams 

type QueryAuctionParams struct {
	AuctionID uint64
}

QueryAuctionParams params for query /auction/auction

type SupplyKeeper 

type SupplyKeeper interface {
	GetModuleAddress(name string) sdk.AccAddress
	GetModuleAccount(ctx sdk.Context, moduleName string) supplyexported.ModuleAccountI

	SendCoinsFromModuleToModule(ctx sdk.Context, sender, recipient string, amt sdk.Coins) error
	SendCoinsFromModuleToAccount(ctx sdk.Context, senderModule string, recipientAddr sdk.AccAddress, amt sdk.Coins) error
	SendCoinsFromAccountToModule(ctx sdk.Context, senderAddr sdk.AccAddress, recipientModule string, amt sdk.Coins) error

	BurnCoins(ctx sdk.Context, name string, amt sdk.Coins) error
	MintCoins(ctx sdk.Context, name string, amt sdk.Coins) error
}

SupplyKeeper defines the expected supply Keeper

type SurplusAuction 

type SurplusAuction struct {
	BaseAuction `json:"base_auction" yaml:"base_auction"`
}

SurplusAuction is a forward auction that burns what it receives from bids. It is normally used to sell off excess pegged asset acquired by the CDP system.

func NewSurplusAuction 

func NewSurplusAuction(seller string, lot sdk.Coin, bidDenom string, endTime time.Time) SurplusAuction

NewSurplusAuction returns a new surplus auction.

func (SurplusAuction) GetModuleAccountCoins 

func (a SurplusAuction) GetModuleAccountCoins() sdk.Coins

GetModuleAccountCoins returns the total number of coins held in the module account for this auction. It is used in genesis initialize the module account correctly.

func (SurplusAuction) GetPhase 

func (a SurplusAuction) GetPhase() string

GetPhase returns the direction of a surplus auction, which never changes.

func (SurplusAuction) GetType 

func (a SurplusAuction) GetType() string

GetType returns the auction type. Used to identify auctions in event attributes.

func (SurplusAuction) WithID 

func (a SurplusAuction) WithID(id uint64) Auction

WithID returns an auction with the ID set.

type WeightedAddresses 

type WeightedAddresses struct {
	Addresses []sdk.AccAddress `json:"addresses" yaml:"addresses"`
	Weights   []sdk.Int        `json:"weights" yaml:"weights"`
}

WeightedAddresses is a type for storing some addresses and associated weights.

func NewWeightedAddresses 

func NewWeightedAddresses(addrs []sdk.AccAddress, weights []sdk.Int) (WeightedAddresses, error)

NewWeightedAddresses returns a new list addresses with weights.

func (WeightedAddresses) Validate added in v0.8.0 

func (wa WeightedAddresses) Validate() error

Validate checks for that the weights are not negative, not all zero, and the lengths match.

Source Files

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