keeper

package
v15.0.0 Latest Latest
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 Go to latest Published: Mar 10, 2023 License: Apache-2.0 Imports: 24 Imported by: 1

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AllInvariants 

func AllInvariants(keeper Keeper, bk types.BankKeeper) sdk.Invariant

AllInvariants runs all invariants of the gamm module

func NewBalancerMsgServerImpl 

func NewBalancerMsgServerImpl(keeper *Keeper) balancer.MsgServer

func NewMsgServerImpl 

func NewMsgServerImpl(keeper *Keeper) types.MsgServer

func NewStableswapMsgServerImpl 

func NewStableswapMsgServerImpl(keeper *Keeper) stableswap.MsgServer

func PoolAccountInvariant 

func PoolAccountInvariant(keeper Keeper, bk types.BankKeeper) sdk.Invariant

PoolAccountInvariant checks that the pool account balance reflects the sum of pool assets

func RegisterInvariants 

func RegisterInvariants(ir sdk.InvariantRegistry, keeper Keeper, bk types.BankKeeper)

RegisterInvariants registers all gamm invariants.

Types

type Keeper 

type Keeper struct {
	// contains filtered or unexported fields
}

func NewKeeper 

func NewKeeper(cdc codec.BinaryCodec, storeKey sdk.StoreKey, paramSpace paramtypes.Subspace, accountKeeper types.AccountKeeper, bankKeeper types.BankKeeper, communityPoolKeeper types.CommunityPoolKeeper) Keeper

func (Keeper) BurnPoolShareFromAccount 

func (k Keeper) BurnPoolShareFromAccount(ctx sdk.Context, pool poolmanagertypes.PoolI, addr sdk.AccAddress, amount sdk.Int) error

BurnPoolShareFromAccount burns `amount` of the given pools shares held by `addr`.

func (Keeper) CalcInAmtGivenOut 

func (k Keeper) CalcInAmtGivenOut(
	ctx sdk.Context,
	poolI poolmanagertypes.PoolI,
	tokenOut sdk.Coin,
	tokenInDenom string,
	swapFee sdk.Dec,
) (tokenIn sdk.Coin, err error)

CalcInAmtGivenOut calculates the amount of tokenIn given tokenOut and the pool's current state. Returns error if the given pool is not a CFMM pool. Returns error on internal calculations.

func (Keeper) CalcOutAmtGivenIn 

func (k Keeper) CalcOutAmtGivenIn(
	ctx sdk.Context,
	poolI poolmanagertypes.PoolI,
	tokenIn sdk.Coin,
	tokenOutDenom string,
	swapFee sdk.Dec,
) (tokenOut sdk.Coin, err error)

CalcOutAmtGivenIn calculates the amount of tokenOut given tokenIn and the pool's current state. Returns error if the given pool is not a CFMM pool. Returns error on internal calculations.

func (Keeper) CalculateSpotPrice 

func (k Keeper) CalculateSpotPrice(
	ctx sdk.Context,
	poolID uint64,
	quoteAssetDenom string,
	baseAssetDenom string,
) (spotPrice sdk.Dec, err error)

CalculateSpotPrice returns the spot price of the quote asset in terms of the base asset, using the specified pool. E.g. if pool 1 trades 2 atom for 3 osmo, the quote asset was atom, and the base asset was osmo, this would return 1.5. (Meaning that 1 atom costs 1.5 osmo)

This function is guaranteed to not panic, but may return an error if: * An internal error within the pool occurs for calculating the spot price * The returned spot price is greater than max spot price

func (Keeper) DeletePool 

func (k Keeper) DeletePool(ctx sdk.Context, poolId uint64) error

func (Keeper) ExitPool 

func (k Keeper) ExitPool(
	ctx sdk.Context,
	sender sdk.AccAddress,
	poolId uint64,
	shareInAmount sdk.Int,
	tokenOutMins sdk.Coins,
) (exitCoins sdk.Coins, err error)

func (Keeper) ExitSwapExactAmountOut 

func (k Keeper) ExitSwapExactAmountOut(
	ctx sdk.Context,
	sender sdk.AccAddress,
	poolId uint64,
	tokenOut sdk.Coin,
	shareInMaxAmount sdk.Int,
) (shareInAmount sdk.Int, err error)

func (Keeper) ExitSwapShareAmountIn 

func (k Keeper) ExitSwapShareAmountIn(
	ctx sdk.Context,
	sender sdk.AccAddress,
	poolId uint64,
	tokenOutDenom string,
	shareInAmount sdk.Int,
	tokenOutMinAmount sdk.Int,
) (tokenOutAmount sdk.Int, err error)

ExitSwapShareAmountIn is an Exit Pool transaction, that will exit all of the provided LP shares, and then swap it all against the pool into tokenOutDenom. If the amount of tokens gotten out after the swap is less than tokenOutMinAmount, return an error.

func (Keeper) ExportGenesis 

func (k Keeper) ExportGenesis(ctx sdk.Context) *types.GenesisState

ExportGenesis returns the capability module's exported genesis.

func (Keeper) GetDenomLiquidity 

func (k Keeper) GetDenomLiquidity(ctx sdk.Context, denom string) sdk.Int

func (Keeper) GetNextPoolId deprecated 

func (k Keeper) GetNextPoolId(ctx sdk.Context) uint64

Deprecated: pool id index has been moved to x/poolmanager.

func (Keeper) GetParams 

func (k Keeper) GetParams(ctx sdk.Context) (params types.Params)

GetParams returns the total set params.

func (Keeper) GetPool 

func (k Keeper) GetPool(ctx sdk.Context, poolId uint64) (poolmanagertypes.PoolI, error)

GetPool returns a pool with a given id.

func (Keeper) GetPoolAndPoke 

func (k Keeper) GetPoolAndPoke(ctx sdk.Context, poolId uint64) (types.CFMMPoolI, error)

GetPoolAndPoke returns a PoolI based on it's identifier if one exists. If poolId corresponds to a pool with weights (e.g. balancer), the weights of the pool are updated via PokePool prior to returning. TODO: Consider rename to GetPool due to downstream API confusion.

func (Keeper) GetPoolDenoms 

func (k Keeper) GetPoolDenoms(ctx sdk.Context, poolId uint64) ([]string, error)

GetPoolDenom retrieves the pool based on PoolId and returns the coin denoms that it holds.

func (Keeper) GetPoolType 

func (k Keeper) GetPoolType(ctx sdk.Context, poolId uint64) (poolmanagertypes.PoolType, error)

func (Keeper) GetPoolsAndPoke 

func (k Keeper) GetPoolsAndPoke(ctx sdk.Context) (res []types.CFMMPoolI, err error)

func (Keeper) GetTotalLiquidity 

func (k Keeper) GetTotalLiquidity(ctx sdk.Context) sdk.Coins

func (Keeper) InitGenesis 

func (k Keeper) InitGenesis(ctx sdk.Context, genState types.GenesisState, unpacker codectypes.AnyUnpacker)

InitGenesis initializes the x/gamm module's state from a provided genesis state, which includes the current live pools, global pool parameters (e.g. pool creation fee), next pool id etc.

func (Keeper) InitializePool 

func (k Keeper) InitializePool(ctx sdk.Context, pool poolmanagertypes.PoolI, sender sdk.AccAddress) (err error)

This function: - saves the pool to state - Mints LP shares to the pool creator - Sets bank metadata for the LP denom - Records total liquidity increase - Calls the AfterPoolCreated hook

func (Keeper) IterateDenomLiquidity 

func (k Keeper) IterateDenomLiquidity(ctx sdk.Context, cb func(sdk.Coin) bool)

func (Keeper) JoinPoolNoSwap 

func (k Keeper) JoinPoolNoSwap(
	ctx sdk.Context,
	sender sdk.AccAddress,
	poolId uint64,
	shareOutAmount sdk.Int,
	tokenInMaxs sdk.Coins,
) (tokenIn sdk.Coins, sharesOut sdk.Int, err error)

JoinPoolNoSwap aims to LP exactly enough to pool #{poolId} to get shareOutAmount number of LP shares. If the required tokens is greater than tokenInMaxs, returns an error & the message reverts. Leftover tokens that weren't LP'd (due to being at inexact ratios) remain in the sender account.

JoinPoolNoSwap determines the maximum amount that can be LP'd without any swap, by looking at the ratio of the total LP'd assets. (e.g. 2 osmo : 1 atom) It then finds the maximal amount that can be LP'd.

func (Keeper) JoinSwapExactAmountIn 

func (k Keeper) JoinSwapExactAmountIn(
	ctx sdk.Context,
	sender sdk.AccAddress,
	poolId uint64,
	tokensIn sdk.Coins,
	shareOutMinAmount sdk.Int,
) (sharesOut sdk.Int, err error)

JoinSwapExactAmountIn is an LP transaction, that will LP all of the provided tokensIn coins. The underlying pool is responsible for swapping any non-even LP proportions to the correct ratios. An error is returned if the amount of LP shares obtained at the end is less than shareOutMinAmount. Otherwise, we return the total amount of shares outgoing from joining the pool.

func (Keeper) JoinSwapShareAmountOut 

func (k Keeper) JoinSwapShareAmountOut(
	ctx sdk.Context,
	sender sdk.AccAddress,
	poolId uint64,
	tokenInDenom string,
	shareOutAmount sdk.Int,
	tokenInMaxAmount sdk.Int,
) (tokenInAmount sdk.Int, err error)

func (Keeper) MarshalPool 

func (k Keeper) MarshalPool(pool poolmanagertypes.PoolI) ([]byte, error)

func (Keeper) MintPoolShareToAccount 

func (k Keeper) MintPoolShareToAccount(ctx sdk.Context, pool poolmanagertypes.PoolI, addr sdk.AccAddress, amount sdk.Int) error

MintPoolShareToAccount attempts to mint shares of a GAMM denomination to the specified address returning an error upon failure. Shares are minted using the x/gamm module account.

func (Keeper) OverwritePoolV15MigrationUnsafe 

func (k Keeper) OverwritePoolV15MigrationUnsafe(ctx sdk.Context, pool poolmanagertypes.PoolI) error

OverwritePoolV15MigrationUnsafe is a temporary method for calling from the v15 upgrade handler for balancer to stableswap pool migration. Do not use for other purposes.

func (Keeper) RecordTotalLiquidityDecrease 

func (k Keeper) RecordTotalLiquidityDecrease(ctx sdk.Context, coins sdk.Coins)

func (Keeper) RecordTotalLiquidityIncrease 

func (k Keeper) RecordTotalLiquidityIncrease(ctx sdk.Context, coins sdk.Coins)

func (*Keeper) SetHooks 

func (k *Keeper) SetHooks(gh types.GammHooks) *Keeper

Set the gamm hooks.

func (*Keeper) SetPoolManager 

func (k *Keeper) SetPoolManager(poolManager types.PoolManager)

func (Keeper) SwapExactAmountIn 

func (k Keeper) SwapExactAmountIn(
	ctx sdk.Context,
	sender sdk.AccAddress,
	pool poolmanagertypes.PoolI,
	tokenIn sdk.Coin,
	tokenOutDenom string,
	tokenOutMinAmount sdk.Int,
	swapFee sdk.Dec,
) (tokenOutAmount sdk.Int, err error)

swapExactAmountIn is an internal method for swapping an exact amount of tokens as input to a pool, using the provided swapFee. This is intended to allow different swap fees as determined by multi-hops, or when recovering from chain liveness failures. TODO: investigate if swapFee can be unexported https://github.com/osmosis-labs/osmosis/issues/3130

func (Keeper) SwapExactAmountOut 

func (k Keeper) SwapExactAmountOut(
	ctx sdk.Context,
	sender sdk.AccAddress,
	pool poolmanagertypes.PoolI,
	tokenInDenom string,
	tokenInMaxAmount sdk.Int,
	tokenOut sdk.Coin,
	swapFee sdk.Dec,
) (tokenInAmount sdk.Int, err error)

SwapExactAmountOut is a method for swapping to get an exact number of tokens out of a pool, using the provided swapFee. This is intended to allow different swap fees as determined by multi-hops, or when recovering from chain liveness failures.

func (Keeper) UnmarshalPool 

func (k Keeper) UnmarshalPool(bz []byte) (types.CFMMPoolI, error)

type Querier 

type Querier struct {
	Keeper
}

Querier defines a wrapper around the x/gamm keeper providing gRPC method handlers.

func NewQuerier 

func NewQuerier(k Keeper) Querier

func (Querier) CalcExitPoolCoinsFromShares 

func (q Querier) CalcExitPoolCoinsFromShares(ctx context.Context, req *types.QueryCalcExitPoolCoinsFromSharesRequest) (*types.QueryCalcExitPoolCoinsFromSharesResponse, error)

CalcExitPoolCoinsFromShares queries the amount of tokens you get by exiting a specific amount of shares

func (Querier) CalcJoinPoolNoSwapShares 

func (q Querier) CalcJoinPoolNoSwapShares(ctx context.Context, req *types.QueryCalcJoinPoolNoSwapSharesRequest) (*types.QueryCalcJoinPoolNoSwapSharesResponse, error)

CalcJoinPoolNoSwapShares returns the amount of shares you'd get if joined a pool without a swap and tokens which need to be provided

func (Querier) CalcJoinPoolShares 

func (q Querier) CalcJoinPoolShares(ctx context.Context, req *types.QueryCalcJoinPoolSharesRequest) (*types.QueryCalcJoinPoolSharesResponse, error)

CalcJoinPoolShares queries the amount of shares you get by providing specific amount of tokens

func (Querier) EstimateSwapExactAmountIn 

func (q Querier) EstimateSwapExactAmountIn(ctx context.Context, req *types.QuerySwapExactAmountInRequest) (*types.QuerySwapExactAmountInResponse, error)

EstimateSwapExactAmountIn estimates input token amount for a swap. This query is deprecated and has been moved to poolmanager module. nolint: staticcheck

func (Querier) EstimateSwapExactAmountOut 

func (q Querier) EstimateSwapExactAmountOut(ctx context.Context, req *types.QuerySwapExactAmountOutRequest) (*types.QuerySwapExactAmountOutResponse, error)

EstimateSwapExactAmountOut estimates token output amount for a swap. This query is deprecated and has been moved to poolmanager module. nolint: staticcheck

func (Querier) NumPools 

func (q Querier) NumPools(ctx context.Context, _ *types.QueryNumPoolsRequest) (*types.QueryNumPoolsResponse, error)

This query has been deprecated and has been moved to poolmanager module. nolint: staticcheck

func (Querier) Pool 

func (q Querier) Pool(
	ctx context.Context,
	req *types.QueryPoolRequest,
) (*types.QueryPoolResponse, error)

Pool checks if a pool exists and their respective poolWeights.

func (Querier) PoolParams 

func (q Querier) PoolParams(ctx context.Context, req *types.QueryPoolParamsRequest) (*types.QueryPoolParamsResponse, error)

PoolParams queries a specified pool for its params.

func (Querier) PoolType 

func (q Querier) PoolType(ctx context.Context, req *types.QueryPoolTypeRequest) (*types.QueryPoolTypeResponse, error)

func (Querier) Pools 

func (q Querier) Pools(
	ctx context.Context,
	req *types.QueryPoolsRequest,
) (*types.QueryPoolsResponse, error)

Pools checks existence of multiple pools and their poolWeights

func (Querier) PoolsWithFilter 

func (q Querier) PoolsWithFilter(ctx context.Context, req *types.QueryPoolsWithFilterRequest) (*types.QueryPoolsWithFilterResponse, error)

PoolsWithFilter query allows to query pools with specific parameters

func (Querier) SpotPrice 

func (q Querier) SpotPrice(ctx context.Context, req *types.QuerySpotPriceRequest) (*types.QuerySpotPriceResponse, error)

SpotPrice returns target pool asset prices on base and quote assets. nolint: staticcheck

func (Querier) TotalLiquidity 

func (q Querier) TotalLiquidity(ctx context.Context, _ *types.QueryTotalLiquidityRequest) (*types.QueryTotalLiquidityResponse, error)

TotalLiquidity returns total liquidity across all pools.

func (Querier) TotalPoolLiquidity 

func (q Querier) TotalPoolLiquidity(ctx context.Context, req *types.QueryTotalPoolLiquidityRequest) (*types.QueryTotalPoolLiquidityResponse, error)

TotalPoolLiquidity returns total liquidity in pool.

func (Querier) TotalShares 

func (q Querier) TotalShares(ctx context.Context, req *types.QueryTotalSharesRequest) (*types.QueryTotalSharesResponse, error)

TotalShares returns total pool shares.

type QuerierV2 

type QuerierV2 struct {
	Keeper
}

QuerierV2 defines a wrapper around the x/gamm keeper providing gRPC method handlers for v2 queries.

func NewV2Querier 

func NewV2Querier(k Keeper) QuerierV2

func (QuerierV2) SpotPrice 

func (q QuerierV2) SpotPrice(ctx context.Context, req *v2types.QuerySpotPriceRequest) (*v2types.QuerySpotPriceResponse, error)

Source Files

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