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keys.go
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keys.go
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package types
import (
"bytes"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/address"
)
const (
// ModuleName defines the module name
ModuleName = "liquidity"
// StoreKey defines the primary module store key
StoreKey = ModuleName
// RouterKey is the message route for slashing
RouterKey = ModuleName
// QuerierRoute defines the module's query routing key
QuerierRoute = ModuleName
)
var (
LastPairIdKey = []byte{0xa0} // key for the latest pair id
LastPoolIdKey = []byte{0xa1} // key for the latest pool id
PairKeyPrefix = []byte{0xa5}
PairIndexKeyPrefix = []byte{0xa6}
PairsByDenomsIndexKeyPrefix = []byte{0xa7}
PoolKeyPrefix = []byte{0xab}
PoolByReserveAddressIndexKeyPrefix = []byte{0xac}
PoolsByPairIndexKeyPrefix = []byte{0xad}
DepositRequestKeyPrefix = []byte{0xb0}
WithdrawRequestKeyPrefix = []byte{0xb1}
SwapRequestKeyPrefix = []byte{0xb2}
)
// GetPairKey returns the store key to retrieve pair object from the pair id.
func GetPairKey(pairId uint64) []byte {
return append(PairKeyPrefix, sdk.Uint64ToBigEndian(pairId)...)
}
// GetPairIndexKey returns the index key to get a pair by denoms.
func GetPairIndexKey(baseCoinDenom, quoteCoinDenom string) []byte {
return append(append(PairIndexKeyPrefix, LengthPrefixString(baseCoinDenom)...), LengthPrefixString(quoteCoinDenom)...)
}
// GetPairsByDenomsIndexKey returns the index key to lookup pairs with given denoms.
func GetPairsByDenomsIndexKey(denomA, denomB string, pairId uint64) []byte {
return append(append(append(PairsByDenomsIndexKeyPrefix, LengthPrefixString(denomA)...), LengthPrefixString(denomB)...), sdk.Uint64ToBigEndian(pairId)...)
}
// GetPairsByDenomIndexKeyPrefix returns the index key prefix to lookup pairs with given denom.
func GetPairsByDenomIndexKeyPrefix(denomA string) []byte {
return append(PairsByDenomsIndexKeyPrefix, LengthPrefixString(denomA)...)
}
// GetPairsByDenomsIndexKeyPrefix returns the index key prefix to lookup pairs with given denoms.
func GetPairsByDenomsIndexKeyPrefix(denomA, denomB string) []byte {
return append(append(PairsByDenomsIndexKeyPrefix, LengthPrefixString(denomA)...), LengthPrefixString(denomB)...)
}
// GetPoolKey returns the store key to retrieve pool object from the pool id.
func GetPoolKey(poolId uint64) []byte {
return append(PoolKeyPrefix, sdk.Uint64ToBigEndian(poolId)...)
}
// GetPoolByReserveAddressIndexKey returns the index key to retrieve the particular pool.
func GetPoolByReserveAddressIndexKey(reserveAddr sdk.AccAddress) []byte {
return append(PoolByReserveAddressIndexKeyPrefix, address.MustLengthPrefix(reserveAddr)...)
}
// GetPoolsByPairIndexKey returns the index key to retrieve pool id that is used to iterate pools.
func GetPoolsByPairIndexKey(pairId, poolId uint64) []byte {
return append(append(PoolsByPairIndexKeyPrefix, sdk.Uint64ToBigEndian(pairId)...), sdk.Uint64ToBigEndian(poolId)...)
}
// GetPoolsByPairIndexKeyPrefix returns the store key to retrieve pool id to iterate pools.
func GetPoolsByPairIndexKeyPrefix(pairId uint64) []byte {
return append(PoolsByPairIndexKeyPrefix, sdk.Uint64ToBigEndian(pairId)...)
}
// GetDepositRequestKey returns the store key to retrieve deposit request object from the pool id and request id.
func GetDepositRequestKey(poolId, id uint64) []byte {
return append(append(DepositRequestKeyPrefix, sdk.Uint64ToBigEndian(poolId)...), sdk.Uint64ToBigEndian(id)...)
}
// GetWithdrawRequestKey returns the store key to retrieve withdraw request object from the pool id and request id.
func GetWithdrawRequestKey(poolId, id uint64) []byte {
return append(append(WithdrawRequestKeyPrefix, sdk.Uint64ToBigEndian(poolId)...), sdk.Uint64ToBigEndian(id)...)
}
// GetSwapRequestKey returns the store key to retrieve swap request object from the pair id and request id.
func GetSwapRequestKey(pairId, id uint64) []byte {
return append(append(SwapRequestKeyPrefix, sdk.Uint64ToBigEndian(pairId)...), sdk.Uint64ToBigEndian(id)...)
}
// GetSwapRequestsByPairKeyPrefix returns the store key to iterate swap requests
// by pair.
func GetSwapRequestsByPairKeyPrefix(pairId uint64) []byte {
return append(SwapRequestKeyPrefix, sdk.Uint64ToBigEndian(pairId)...)
}
// ParsePairsByDenomsIndexKey parses a pair by denom index key.
func ParsePairsByDenomsIndexKey(key []byte) (denomA, denomB string, pairId uint64) {
if !bytes.HasPrefix(key, PairsByDenomsIndexKeyPrefix) {
panic("key does not have proper prefix")
}
denomALen := key[1]
denomA = string(key[2 : 2+denomALen])
denomBLen := key[2+denomALen]
denomB = string(key[3+denomALen : 3+denomALen+denomBLen])
pairId = sdk.BigEndianToUint64(key[3+denomALen+denomBLen:])
return
}
// ParsePoolsByPairIndexKey parses a pool id from the index key.
func ParsePoolsByPairIndexKey(key []byte) (poolId uint64) {
if !bytes.HasPrefix(key, PoolsByPairIndexKeyPrefix) {
panic("key does not have proper prefix")
}
bytesLen := 8
poolId = sdk.BigEndianToUint64(key[1+bytesLen:])
return
}
// LengthPrefixString returns length-prefixed bytes representation
// of a string.
func LengthPrefixString(s string) []byte {
bz := []byte(s)
bzLen := len(bz)
if bzLen == 0 {
return bz
}
return append([]byte{byte(bzLen)}, bz...)
}