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	* add swap claim type * add store methods for swap claims * add swap claims to genesis state * tidy up cdp and hard hook doc comments * add uncalled hooks to the swap keeper * add swap rewards sync method * add swap rewards init method * connect swap rewards via swap hooks * Update querier and client for swap claims (#951) * refactor querier to dedupe code * add swap claims querier endpoint * add swap claim querying to rest * add swap claim querying to cli * add keeper method to iterate swap reward indexes * simplify reward-factors query endpoint, add swap * update swap hook to match latest swap branch * rename func to not collide with latest swap branch * Squash merge swap-acceptance branch (#956) * add failing acceptance test for a user depositing into a pool * implement GetAccount test helper * implement swap.MsgDeposit for creating and adding liquidity to a pool * update aliases, add event types, and fix typo/compiler errors in handler test * use only aliases names in handler test (don't use swap types -- ensures we have run aliasgen), add assertion for even type message * implement account and module account balance checks in handler test * fill out handler assertions for testing keeper state and events * update signed json representation and register swap/MsgDeposit for proper encoding * fill out boilerplate to get handler test to compile * alias gen for pool * add handling of message type; fill in deposit keeper method for succesful compile; noop but test assertions now run up to module acc not nil check * add module account permissions for swap module -- fixes module account creation; pass account keeper and supply keeper into swap keeper to allow the ability to work with user and module accounts * implement create pool logic for msg deposit; allows creation of a of new pool, checking params to see if it is allowed. Initi shares are set, and senders number of shares are stored * Swap migrations scaffolding (#925) * swap module scaffolding * global swap fee * can't think of a reason for begin blocker; removing for abci.go for now; * test pair types; refactor pair name logic; simplify pairs validation and fix stack overflow error * check comparison * use test package * init swap module genesis * add basic marshall tests * remove reward apy from pairs * fix integration helpers * use max swap fee constant; fix validation of swap fee; add tests to cover param validation and param set setup * use noerror over nil * start genesis tests * test param set validation mirrors param validation * add genesis tests * remove print statement * add subtests for genesis test cases; add extra querier test for unknown route; add keeper params testing * add spec * update swagger * find replace hard -> swap in comments * remove unused method * rename pairs to allowed pools; pool is more commonly used, and allowedPool makes it more clear what swap parameter is for. In addition, we won't conflict with Pool data structure for storing a created pool in the store. * remove generated link * missed spec rename * validate token order for allowed pools * fix swagger * json should be snakecase; change allowedPools to allowed_pools * add legacy types * add swap genesis to v0_15 migration * add legacy types * add swap genesis to v0_15 migration * migration revisions Co-authored-by: Nick DeLuca <nickdeluca08@gmail.com> * keeper todos * update keeper tests * type todos * update types tests * tx deposit cli cmd * tx deposit rest * Swap module simulation scaffolding (#924) * sims scaffolding * add noop operation * genesis revisions * add param changes * mvoe persistance methods to main keeper file, consolidate tests * make helper methods private. they are tested via deposit method, and unit testing them would make test suite brittle and refactoring difficult * use more clear coin variables * code 1 is reserved, use code 2 and sequence all errors * remove todo * Implement deadline for swap module module message. This is implemented in handler with a interface to easily apply to it to all messages, and separate msg validation concerns from the keeper * move allowed pools to params -- let pool and pool_test focus on pool domain logic, not parameter & governance concerns * update alias * add unitless implementatin of constant product liquidity pool to isolate and enapsulate liquidity logic. Swap methods interfaces are added, but implementation not yet added * nits and todos * add ErrInvalidPool * add tests for edge cases around pool depletion; add explicit panic for edge case that results in a pool reserve being zero; handle pool reinitialization if it is empty * touch up comments and flush out the rest of assertions * add data structures for keeper state storage separate from pool domain objects, and improve structure for easier querying * rename pool name to pool key for events * add support for a denominated pool that uses sdk.Coins and sdk.Coin arguments, keeping tracking of the units in the base pool. This gives nice separation between pool logic, and coin/denom logic * refactor keeper to use new records for storage, and implement pool deposit using the denominated pool * address previous PR comment - reminder for migration if changing account permissions * msg deposit should validate that denoms are not equal * add godoc comments * golint and some poolName -> poolID cleanup * implement adding liquidity to an existing pool * hardcode pools in sims * touch up comment * withdraw keeper logic * withdraw type updates * add withdraw msg tx handler * initial withdraw test * fix panic * use new denominated pool with existing shares * fix: check args on deposit cmd * add slippage limit check for depositing to an existing pool * send coins just before event emission * check liquidity returned is greater than zero for both coins; ensure returned number of shares are greater than zero * add deadline to msgwithdraw * register msgwithdraw * scaffold msgwithdraw types test * register the correct msg * modify swap functions to also return the amount paid for the pool swap fee. This will be used to calculate slippage and for event tracking * add slippage types * add expected withdrawal coins * calculate slippage against expected coins * update withdraw keeper tests * spelling, improve comments on add liquidity math * typo * typo * grammer * typo / grammer * remove pool_id from withdraw msg * add slippage to tx cmd * TestWithdraw_Partial * nit * add withdraw no pool, no deposit record tests * drop event check on partial withdraw test * fix broken link * fix broken link * resolve merge conflicts * ensure swap fee can not be equal to 1; add full implementation of swap pool methods; these implementation ensure that the pool invariant is always greater or equal to the previous invariant * refactor duplicated code into private swap methods * add runtime assertion to always ensure invariant is greater or equal to the previous invariant sub fee on swaps * improve comments for base pool swap functions * add swap exact input and output methods to denominated pool that wrap the base pool interface for swapping * comment touch ups * more comment touchups * fix msg deposit struct tag (#943) * use better name for swap calculation private methods * nits: golint * fix misspelling in method name * Add HARD token governance committee for Hard module (#941) * add hard gov token committee * revisions: update migration * revisions: update test/data file * initial revisions * add TokenCommittee JSONMarshal test * fix SetPermissions method * remove BaseCommittee Type field * add incentive params to allowed params * Add SWP token governance committee for Swap module (#946) * add swp token commitee to migration * update test, add gen export utility method * final revisions: add TODO * remove slippage from withdraw to use min values for coins; add additional validation test cases * update alias for swap module * add withdraw tests to handler for increased coverage; note: first pass, improvements still yet to be made here * refact withdraw keeper to use min amounts; panic for cases that do not happen in normal situations * lint fixes * use total shares to track if pool should be deleted; add more in depth withdraw comment * add exact args for withdraw cmd * extract record update methods * update depositor share record if it exists -- do not overwrite an existing record; ensures no loss of shares if the same address deposits more than once * Swap queries: deposit, pool, pools (#949) * query deposits types * implement deposit querier keeper methods * query deposits CLI * query deposits REST * query types for pool/pools * pool/pools querier keeper methods * pool/pools CLI * pool/pools REST * basic pool/pools query tests * basic deposit querier test * iterate share records via owner bytes * nit: add example for querying deposits by owner only Co-authored-by: karzak <kjydavis3@gmail.com> * feat: add REST tx handler for swap LP withdrawals Co-authored-by: Nick DeLuca <nickdeluca08@gmail.com> Co-authored-by: Denali Marsh <denali@kava.io> Co-authored-by: denalimarsh <denalimarsh@gmail.com> Co-authored-by: karzak <kjydavis3@gmail.com> * expand incentive cli query docs Co-authored-by: Nick DeLuca <nickdeluca08@gmail.com> Co-authored-by: Denali Marsh <denali@kava.io> Co-authored-by: denalimarsh <denalimarsh@gmail.com> Co-authored-by: karzak <kjydavis3@gmail.com> * minor update to godoc comment Co-authored-by: Nick DeLuca <nickdeluca08@gmail.com> Co-authored-by: Denali Marsh <denali@kava.io> Co-authored-by: denalimarsh <denalimarsh@gmail.com> Co-authored-by: karzak <kjydavis3@gmail.com>
		
			
				
	
	
		
			357 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			357 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package keeper
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import (
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	"time"
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	"github.com/cosmos/cosmos-sdk/codec"
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	"github.com/cosmos/cosmos-sdk/store/prefix"
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	sdk "github.com/cosmos/cosmos-sdk/types"
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	"github.com/cosmos/cosmos-sdk/x/params/subspace"
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	"github.com/kava-labs/kava/x/hard/types"
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)
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// Keeper keeper for the hard module
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type Keeper struct {
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	key             sdk.StoreKey
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	cdc             *codec.Codec
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	paramSubspace   subspace.Subspace
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	accountKeeper   types.AccountKeeper
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	supplyKeeper    types.SupplyKeeper
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	stakingKeeper   types.StakingKeeper
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	pricefeedKeeper types.PricefeedKeeper
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	auctionKeeper   types.AuctionKeeper
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	hooks           types.HARDHooks
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}
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// NewKeeper creates a new keeper
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func NewKeeper(cdc *codec.Codec, key sdk.StoreKey, paramstore subspace.Subspace,
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	ak types.AccountKeeper, sk types.SupplyKeeper, stk types.StakingKeeper,
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	pfk types.PricefeedKeeper, auk types.AuctionKeeper) Keeper {
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	if !paramstore.HasKeyTable() {
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		paramstore = paramstore.WithKeyTable(types.ParamKeyTable())
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	}
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	return Keeper{
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		key:             key,
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		cdc:             cdc,
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		paramSubspace:   paramstore,
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		accountKeeper:   ak,
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		supplyKeeper:    sk,
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		stakingKeeper:   stk,
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		pricefeedKeeper: pfk,
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		auctionKeeper:   auk,
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		hooks:           nil,
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	}
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}
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// SetHooks adds hooks to the keeper.
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func (k *Keeper) SetHooks(hooks types.HARDHooks) *Keeper {
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	if k.hooks != nil {
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		panic("cannot set hard hooks twice")
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	}
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	k.hooks = hooks
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	return k
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}
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// GetDeposit returns a deposit from the store for a particular depositor address, deposit denom
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func (k Keeper) GetDeposit(ctx sdk.Context, depositor sdk.AccAddress) (types.Deposit, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
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	bz := store.Get(depositor.Bytes())
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	if bz == nil {
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		return types.Deposit{}, false
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	}
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	var deposit types.Deposit
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	k.cdc.MustUnmarshalBinaryBare(bz, &deposit)
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	return deposit, true
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}
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// SetDeposit sets the input deposit in the store, prefixed by the deposit type, deposit denom, and depositor address, in that order
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func (k Keeper) SetDeposit(ctx sdk.Context, deposit types.Deposit) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
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	bz := k.cdc.MustMarshalBinaryBare(deposit)
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	store.Set(deposit.Depositor.Bytes(), bz)
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}
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// DeleteDeposit deletes a deposit from the store
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func (k Keeper) DeleteDeposit(ctx sdk.Context, deposit types.Deposit) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
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	store.Delete(deposit.Depositor.Bytes())
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}
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// IterateDeposits iterates over all deposit objects in the store and performs a callback function
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func (k Keeper) IterateDeposits(ctx sdk.Context, cb func(deposit types.Deposit) (stop bool)) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.DepositsKeyPrefix)
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	iterator := sdk.KVStorePrefixIterator(store, []byte{})
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	defer iterator.Close()
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	for ; iterator.Valid(); iterator.Next() {
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		var deposit types.Deposit
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		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &deposit)
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		if cb(deposit) {
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			break
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		}
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	}
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}
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// GetDepositsByUser gets all deposits for an individual user
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func (k Keeper) GetDepositsByUser(ctx sdk.Context, user sdk.AccAddress) []types.Deposit {
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	var deposits []types.Deposit
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	k.IterateDeposits(ctx, func(deposit types.Deposit) (stop bool) {
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		if deposit.Depositor.Equals(user) {
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			deposits = append(deposits, deposit)
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		}
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		return false
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	})
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	return deposits
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}
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// BondDenom returns the bond denom from the staking keeper
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func (k Keeper) BondDenom(ctx sdk.Context) string {
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	return k.stakingKeeper.BondDenom(ctx)
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}
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// GetBorrow returns a Borrow from the store for a particular borrower address and borrow denom
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func (k Keeper) GetBorrow(ctx sdk.Context, borrower sdk.AccAddress) (types.Borrow, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
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	bz := store.Get(borrower)
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	if bz == nil {
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		return types.Borrow{}, false
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	}
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	var borrow types.Borrow
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	k.cdc.MustUnmarshalBinaryBare(bz, &borrow)
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	return borrow, true
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}
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// SetBorrow sets the input borrow in the store, prefixed by the borrower address and borrow denom
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func (k Keeper) SetBorrow(ctx sdk.Context, borrow types.Borrow) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
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	bz := k.cdc.MustMarshalBinaryBare(borrow)
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	store.Set(borrow.Borrower, bz)
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}
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// DeleteBorrow deletes a borrow from the store
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func (k Keeper) DeleteBorrow(ctx sdk.Context, borrow types.Borrow) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
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	store.Delete(borrow.Borrower)
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}
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// IterateBorrows iterates over all borrow objects in the store and performs a callback function
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func (k Keeper) IterateBorrows(ctx sdk.Context, cb func(borrow types.Borrow) (stop bool)) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowsKeyPrefix)
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	iterator := sdk.KVStorePrefixIterator(store, []byte{})
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	defer iterator.Close()
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	for ; iterator.Valid(); iterator.Next() {
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		var borrow types.Borrow
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		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &borrow)
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		if cb(borrow) {
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			break
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		}
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	}
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}
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// SetBorrowedCoins sets the total amount of coins currently borrowed in the store
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func (k Keeper) SetBorrowedCoins(ctx sdk.Context, borrowedCoins sdk.Coins) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowedCoinsPrefix)
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	if borrowedCoins.Empty() {
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		store.Set([]byte{}, []byte{})
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	} else {
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		bz := k.cdc.MustMarshalBinaryBare(borrowedCoins)
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		store.Set([]byte{}, bz)
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	}
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}
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// GetBorrowedCoins returns an sdk.Coins object from the store representing all currently borrowed coins
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func (k Keeper) GetBorrowedCoins(ctx sdk.Context) (sdk.Coins, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowedCoinsPrefix)
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	bz := store.Get([]byte{})
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	if bz == nil {
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		return sdk.Coins{}, false
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	}
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	var borrowedCoins sdk.Coins
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	k.cdc.MustUnmarshalBinaryBare(bz, &borrowedCoins)
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	return borrowedCoins, true
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}
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// SetSuppliedCoins sets the total amount of coins currently supplied in the store
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func (k Keeper) SetSuppliedCoins(ctx sdk.Context, suppliedCoins sdk.Coins) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.SuppliedCoinsPrefix)
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	if suppliedCoins.Empty() {
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		store.Set([]byte{}, []byte{})
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	} else {
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		bz := k.cdc.MustMarshalBinaryBare(suppliedCoins)
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		store.Set([]byte{}, bz)
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	}
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}
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// GetSuppliedCoins returns an sdk.Coins object from the store representing all currently supplied coins
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func (k Keeper) GetSuppliedCoins(ctx sdk.Context) (sdk.Coins, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.SuppliedCoinsPrefix)
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	bz := store.Get([]byte{})
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	if bz == nil {
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		return sdk.Coins{}, false
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	}
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	var suppliedCoins sdk.Coins
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	k.cdc.MustUnmarshalBinaryBare(bz, &suppliedCoins)
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	return suppliedCoins, true
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}
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// GetMoneyMarket returns a money market from the store for a denom
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func (k Keeper) GetMoneyMarket(ctx sdk.Context, denom string) (types.MoneyMarket, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
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	bz := store.Get([]byte(denom))
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	if bz == nil {
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		return types.MoneyMarket{}, false
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	}
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	var moneyMarket types.MoneyMarket
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	k.cdc.MustUnmarshalBinaryBare(bz, &moneyMarket)
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	return moneyMarket, true
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}
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// SetMoneyMarket sets a money market in the store for a denom
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func (k Keeper) SetMoneyMarket(ctx sdk.Context, denom string, moneyMarket types.MoneyMarket) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
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	bz := k.cdc.MustMarshalBinaryBare(moneyMarket)
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	store.Set([]byte(denom), bz)
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}
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// DeleteMoneyMarket deletes a money market from the store
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func (k Keeper) DeleteMoneyMarket(ctx sdk.Context, denom string) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
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	store.Delete([]byte(denom))
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}
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// IterateMoneyMarkets iterates over all money markets objects in the store and performs a callback function
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// 		that returns both the money market and the key (denom) it's stored under
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func (k Keeper) IterateMoneyMarkets(ctx sdk.Context, cb func(denom string, moneyMarket types.MoneyMarket) (stop bool)) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.MoneyMarketsPrefix)
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	iterator := sdk.KVStorePrefixIterator(store, []byte{})
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	defer iterator.Close()
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	for ; iterator.Valid(); iterator.Next() {
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		var moneyMarket types.MoneyMarket
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		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &moneyMarket)
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		if cb(string(iterator.Key()), moneyMarket) {
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			break
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		}
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	}
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}
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// GetAllMoneyMarkets returns all money markets from the store
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func (k Keeper) GetAllMoneyMarkets(ctx sdk.Context) (moneyMarkets types.MoneyMarkets) {
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	k.IterateMoneyMarkets(ctx, func(denom string, moneyMarket types.MoneyMarket) bool {
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		moneyMarkets = append(moneyMarkets, moneyMarket)
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		return false
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	})
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	return
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}
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// GetPreviousAccrualTime returns the last time an individual market accrued interest
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func (k Keeper) GetPreviousAccrualTime(ctx sdk.Context, denom string) (time.Time, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.PreviousAccrualTimePrefix)
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	bz := store.Get([]byte(denom))
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	if bz == nil {
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		return time.Time{}, false
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	}
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	var previousAccrualTime time.Time
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	k.cdc.MustUnmarshalBinaryBare(bz, &previousAccrualTime)
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	return previousAccrualTime, true
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}
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// SetPreviousAccrualTime sets the most recent accrual time for a particular market
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func (k Keeper) SetPreviousAccrualTime(ctx sdk.Context, denom string, previousAccrualTime time.Time) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.PreviousAccrualTimePrefix)
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	bz := k.cdc.MustMarshalBinaryBare(previousAccrualTime)
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	store.Set([]byte(denom), bz)
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}
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// GetTotalReserves returns the total reserves for an individual market
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func (k Keeper) GetTotalReserves(ctx sdk.Context) (sdk.Coins, bool) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.TotalReservesPrefix)
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	bz := store.Get([]byte{})
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	if bz == nil {
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		return sdk.Coins{}, false
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	}
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	var totalReserves sdk.Coins
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	k.cdc.MustUnmarshalBinaryBare(bz, &totalReserves)
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	return totalReserves, true
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}
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// SetTotalReserves sets the total reserves for an individual market
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func (k Keeper) SetTotalReserves(ctx sdk.Context, coins sdk.Coins) {
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	store := prefix.NewStore(ctx.KVStore(k.key), types.TotalReservesPrefix)
 | 
						|
	if coins.Empty() {
 | 
						|
		store.Set([]byte{}, []byte{})
 | 
						|
		return
 | 
						|
	}
 | 
						|
	bz := k.cdc.MustMarshalBinaryBare(coins)
 | 
						|
	store.Set([]byte{}, bz)
 | 
						|
}
 | 
						|
 | 
						|
// GetBorrowInterestFactor returns the current borrow interest factor for an individual market
 | 
						|
func (k Keeper) GetBorrowInterestFactor(ctx sdk.Context, denom string) (sdk.Dec, bool) {
 | 
						|
	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
 | 
						|
	bz := store.Get([]byte(denom))
 | 
						|
	if bz == nil {
 | 
						|
		return sdk.ZeroDec(), false
 | 
						|
	}
 | 
						|
	var borrowInterestFactor sdk.Dec
 | 
						|
	k.cdc.MustUnmarshalBinaryBare(bz, &borrowInterestFactor)
 | 
						|
	return borrowInterestFactor, true
 | 
						|
}
 | 
						|
 | 
						|
// SetBorrowInterestFactor sets the current borrow interest factor for an individual market
 | 
						|
func (k Keeper) SetBorrowInterestFactor(ctx sdk.Context, denom string, borrowInterestFactor sdk.Dec) {
 | 
						|
	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
 | 
						|
	bz := k.cdc.MustMarshalBinaryBare(borrowInterestFactor)
 | 
						|
	store.Set([]byte(denom), bz)
 | 
						|
}
 | 
						|
 | 
						|
// IterateBorrowInterestFactors iterates over all borrow interest factors in the store and returns
 | 
						|
// both the borrow interest factor and the key (denom) it's stored under
 | 
						|
func (k Keeper) IterateBorrowInterestFactors(ctx sdk.Context, cb func(denom string, factor sdk.Dec) (stop bool)) {
 | 
						|
	store := prefix.NewStore(ctx.KVStore(k.key), types.BorrowInterestFactorPrefix)
 | 
						|
	iterator := sdk.KVStorePrefixIterator(store, []byte{})
 | 
						|
	defer iterator.Close()
 | 
						|
	for ; iterator.Valid(); iterator.Next() {
 | 
						|
		var factor sdk.Dec
 | 
						|
		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &factor)
 | 
						|
		if cb(string(iterator.Key()), factor) {
 | 
						|
			break
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
// GetSupplyInterestFactor returns the current supply interest factor for an individual market
 | 
						|
func (k Keeper) GetSupplyInterestFactor(ctx sdk.Context, denom string) (sdk.Dec, bool) {
 | 
						|
	store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
 | 
						|
	bz := store.Get([]byte(denom))
 | 
						|
	if bz == nil {
 | 
						|
		return sdk.ZeroDec(), false
 | 
						|
	}
 | 
						|
	var supplyInterestFactor sdk.Dec
 | 
						|
	k.cdc.MustUnmarshalBinaryBare(bz, &supplyInterestFactor)
 | 
						|
	return supplyInterestFactor, true
 | 
						|
}
 | 
						|
 | 
						|
// SetSupplyInterestFactor sets the current supply interest factor for an individual market
 | 
						|
func (k Keeper) SetSupplyInterestFactor(ctx sdk.Context, denom string, supplyInterestFactor sdk.Dec) {
 | 
						|
	store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
 | 
						|
	bz := k.cdc.MustMarshalBinaryBare(supplyInterestFactor)
 | 
						|
	store.Set([]byte(denom), bz)
 | 
						|
}
 | 
						|
 | 
						|
// IterateSupplyInterestFactors iterates over all supply interest factors in the store and returns
 | 
						|
// both the supply interest factor and the key (denom) it's stored under
 | 
						|
func (k Keeper) IterateSupplyInterestFactors(ctx sdk.Context, cb func(denom string, factor sdk.Dec) (stop bool)) {
 | 
						|
	store := prefix.NewStore(ctx.KVStore(k.key), types.SupplyInterestFactorPrefix)
 | 
						|
	iterator := sdk.KVStorePrefixIterator(store, []byte{})
 | 
						|
	defer iterator.Close()
 | 
						|
	for ; iterator.Valid(); iterator.Next() {
 | 
						|
		var factor sdk.Dec
 | 
						|
		k.cdc.MustUnmarshalBinaryBare(iterator.Value(), &factor)
 | 
						|
		if cb(string(iterator.Key()), factor) {
 | 
						|
			break
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 |