2020-09-02 19:41:05 +00:00
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package types
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import (
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"fmt"
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2021-04-17 10:00:07 +00:00
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yaml "gopkg.in/yaml.v2"
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2020-09-02 19:41:05 +00:00
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sdk "github.com/cosmos/cosmos-sdk/types"
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paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
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2020-12-08 19:01:28 +00:00
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"github.com/ethereum/go-ethereum/core/vm"
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2020-09-02 19:41:05 +00:00
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)
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var _ paramtypes.ParamSet = &Params{}
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2020-09-02 19:41:05 +00:00
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// Parameter keys
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var (
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ParamStoreKeyEVMDenom = []byte("EVMDenom")
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ParamStoreKeyEnableCreate = []byte("EnableCreate")
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ParamStoreKeyEnableCall = []byte("EnableCall")
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ParamStoreKeyExtraEIPs = []byte("EnableExtraEIPs")
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)
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// ParamKeyTable returns the parameter key table.
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func ParamKeyTable() paramtypes.KeyTable {
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return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
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}
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// NewParams creates a new Params instance
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func NewParams(evmDenom string, enableCreate, enableCall bool, extraEIPs ...int64) Params {
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return Params{
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EvmDenom: evmDenom,
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EnableCreate: enableCreate,
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EnableCall: enableCall,
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ExtraEIPs: extraEIPs,
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}
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}
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// DefaultParams returns default evm parameters
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func DefaultParams() Params {
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return Params{
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EvmDenom: "inj",
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EnableCreate: true,
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EnableCall: true,
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ExtraEIPs: []int64(nil), // TODO: define default values
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}
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}
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// String implements the fmt.Stringer interface
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func (p Params) String() string {
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out, _ := yaml.Marshal(p)
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return string(out)
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}
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// ParamSetPairs returns the parameter set pairs.
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func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
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return paramtypes.ParamSetPairs{
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paramtypes.NewParamSetPair(ParamStoreKeyEVMDenom, &p.EvmDenom, validateEVMDenom),
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paramtypes.NewParamSetPair(ParamStoreKeyEnableCreate, &p.EnableCreate, validateBool),
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paramtypes.NewParamSetPair(ParamStoreKeyEnableCall, &p.EnableCall, validateBool),
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paramtypes.NewParamSetPair(ParamStoreKeyExtraEIPs, &p.ExtraEIPs, validateEIPs),
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}
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}
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// Validate performs basic validation on evm parameters.
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func (p Params) Validate() error {
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if err := sdk.ValidateDenom(p.EvmDenom); err != nil {
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return err
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}
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return validateEIPs(p.ExtraEIPs)
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}
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func validateEVMDenom(i interface{}) error {
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denom, ok := i.(string)
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if !ok {
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return fmt.Errorf("invalid parameter EVM denom type: %T", i)
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}
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return sdk.ValidateDenom(denom)
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}
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func validateBool(i interface{}) error {
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_, ok := i.(bool)
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if !ok {
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return fmt.Errorf("invalid parameter type: %T", i)
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}
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return nil
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}
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2020-12-08 19:01:28 +00:00
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func validateEIPs(i interface{}) error {
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eips, ok := i.([]int64)
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if !ok {
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return fmt.Errorf("invalid EIP slice type: %T", i)
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}
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for _, eip := range eips {
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if !vm.ValidEip(int(eip)) {
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return fmt.Errorf("EIP %d is not activateable", eip)
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}
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}
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return nil
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}
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