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params.go
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params.go
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package types
import (
"errors"
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
var _ paramtypes.ParamSet = &Params{}
// Default parameter values.
var (
DefaultMaxBondAmountTokens = sdk.NewInt(100000000000)
)
// Parameter keys
var (
ParamStoreKeyMaxBondAmount = []byte("MaxBondAmount")
)
// ParamKeyTable ParamTable for staking module
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
func NewParams(maxBondAmount sdk.Coin) Params {
return Params{MaxBondAmount: maxBondAmount}
}
// DefaultParams returns default evm parameters
// ExtraEIPs is empty to prevent overriding the latest hard fork instruction set
func DefaultParams() Params {
return NewParams(sdk.NewCoin(sdk.DefaultBondDenom, DefaultMaxBondAmountTokens))
}
// ParamSetPairs returns the parameter set pairs.
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(ParamStoreKeyMaxBondAmount, &p.MaxBondAmount, validateMaxBondAmount),
}
}
func validateMaxBondAmount(i interface{}) error {
v, ok := i.(sdk.Coin)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v.Amount.IsNegative() {
return errors.New("max bond amount must be positive")
}
return nil
}
// Validate checks that the parameters have valid values.
func (p Params) Validate() error {
if err := validateMaxBondAmount(p.MaxBondAmount); err != nil {
return err
}
return nil
}