/
params.go
107 lines (86 loc) · 2.96 KB
/
params.go
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package types
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
// Parameter store keys.
var (
KeyDenomCreationFee = []byte("DenomCreationFee")
KeyDenomCreationGasConsume = []byte("DenomCreationGasConsume")
KeyFeeCollectorAddress = []byte("FeeCollectorAddress")
// We don't want to charge users for denom creation
DefaultDenomCreationFee sdk.Coins
DefaultDenomCreationGasConsume uint64
DefaultFeeCollectorAddress = ""
)
// ParamKeyTable the param key table for tokenfactory module.
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
func NewParams(denomCreationFee sdk.Coins, denomCreationGasConsume uint64, feeCollectorAddress string) Params {
return Params{
DenomCreationFee: denomCreationFee,
DenomCreationGasConsume: denomCreationGasConsume,
FeeCollectorAddress: feeCollectorAddress,
}
}
// DefaultParams returns a default set of parameters
func DefaultParams() Params {
return NewParams(DefaultDenomCreationFee, DefaultDenomCreationGasConsume, DefaultFeeCollectorAddress)
}
// Validate validates params
func (p Params) Validate() error {
// DenomCreationFee and FeeCollectorAddress must be both set, or both unset
hasDenomCreationFee := len(p.DenomCreationFee) > 0
hasFeeCollectorAddress := p.FeeCollectorAddress != ""
if hasDenomCreationFee != hasFeeCollectorAddress {
return fmt.Errorf("DenomCreationFee and FeeCollectorAddr must be both set or both unset")
}
if err := validateDenomCreationFee(p.DenomCreationFee); err != nil {
return fmt.Errorf("failed to validate params: %w", err)
}
if err := validateFeeCollectorAddress(p.FeeCollectorAddress); err != nil {
return fmt.Errorf("failed to validate params: %w", err)
}
return nil
}
// ParamSetPairs get the params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyDenomCreationFee, &p.DenomCreationFee, validateDenomCreationFee),
paramtypes.NewParamSetPair(KeyDenomCreationGasConsume, &p.DenomCreationGasConsume, validateDenomCreationGasConsume),
paramtypes.NewParamSetPair(KeyFeeCollectorAddress, &p.FeeCollectorAddress, validateFeeCollectorAddress),
}
}
func validateDenomCreationFee(i interface{}) error {
v, ok := i.(sdk.Coins)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v.Validate() != nil {
return fmt.Errorf("invalid denom creation fee: %+v", i)
}
return nil
}
func validateDenomCreationGasConsume(i interface{}) error {
_, ok := i.(uint64)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validateFeeCollectorAddress(i interface{}) error {
v, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if len(v) == 0 {
return nil
}
_, err := sdk.AccAddressFromBech32(v)
if err != nil {
return fmt.Errorf("invalid fee collector address: %w", err)
}
return nil
}