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params.go
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params.go
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package types
import (
"errors"
"fmt"
"math"
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
var DefaultMintDenom = "aISLM"
// Parameter store keys
var (
ParamStoreKeyMintDenom = []byte("ParamStoreKeyMintDenom")
ParamStoreKeyBlockPerEra = []byte("ParamStoreKeyBlockPerEra")
ParamStoreKeyEnableCoinomics = []byte("ParamStoreKeyEnableCoinomics")
)
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
func NewParams(
mintDenom string,
blockPerEra uint64,
enableCoinomics bool,
) Params {
return Params{
MintDenom: mintDenom,
BlocksPerEra: blockPerEra,
EnableCoinomics: enableCoinomics,
}
}
func DefaultParams() Params {
return Params{
MintDenom: DefaultMintDenom,
BlocksPerEra: 5259600 * 2, // 2 years
EnableCoinomics: true,
}
}
// Implements params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(ParamStoreKeyMintDenom, &p.MintDenom, validateMintDenom),
paramtypes.NewParamSetPair(ParamStoreKeyBlockPerEra, &p.BlocksPerEra, validateBlockPerEra),
paramtypes.NewParamSetPair(ParamStoreKeyEnableCoinomics, &p.EnableCoinomics, validateBool),
}
}
func validateMintDenom(i interface{}) error {
v, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if strings.TrimSpace(v) == "" {
return errors.New("mint denom cannot be blank")
}
return sdk.ValidateDenom(v)
}
func validateBlockPerEra(i interface{}) error {
v, ok := i.(uint64)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
// Check if BlocksPerEra is within the uint64 range
if v > math.MaxUint64 {
return errors.New("BlocksPerEra is out of uint64 range")
}
if v == 0 {
return errors.New("block per era must not be zero")
}
return nil
}
func validateBool(i interface{}) error {
_, ok := i.(bool)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func (p Params) Validate() error {
if err := validateMintDenom(p.MintDenom); err != nil {
return err
}
if err := validateBlockPerEra(p.BlocksPerEra); err != nil {
return err
}
return validateBool(p.EnableCoinomics)
}