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params.go
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params.go
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package types
import (
fmt "fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
var (
DefaultFeePercentage = sdk.NewDec(0)
// KeyFeePercentage is store's key for FeePercentage Params
KeyFeePercentage = []byte("FeePercentage")
)
// ParamKeyTable type declaration for parameters
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
// NewParams creates a new parameter configuration for the ibc transfer module
func NewParams(feePercentage sdk.Dec) Params {
return Params{
FeePercentage: feePercentage,
}
}
// DefaultParams is the default parameter configuration for the ibc-transfer module
func DefaultParams() Params {
return NewParams(DefaultFeePercentage)
}
// Validate all ibc-transfer module parameters
func (p Params) Validate() error {
return validateFeePercentage(p.FeePercentage)
}
// ParamSetPairs implements params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyFeePercentage, p.FeePercentage, validateFeePercentage),
}
}
func validateFeePercentage(i interface{}) error {
v, ok := i.(sdk.Dec)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v.IsNegative() {
return fmt.Errorf("invalid fee percentage. expected not negative, got %d", v.RoundInt64())
}
if !(v.LTE(sdk.OneDec())) {
return fmt.Errorf("invalid fee percentage. expected less than one 1 got %d", v.RoundInt64())
}
return nil
}