74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
package types
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import (
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"fmt"
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"gopkg.in/yaml.v2"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/params"
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ethermint "github.com/cosmos/ethermint/types"
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)
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const (
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// DefaultParamspace for params keeper
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DefaultParamspace = ModuleName
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)
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// Parameter keys
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var (
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ParamStoreKeyEVMDenom = []byte("EVMDenom")
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)
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// ParamKeyTable returns the parameter key table.
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func ParamKeyTable() params.KeyTable {
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return params.NewKeyTable().RegisterParamSet(&Params{})
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}
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// Params defines the EVM module parameters
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type Params struct {
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EvmDenom string `json:"evm_denom" yaml:"evm_denom"`
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}
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// NewParams creates a new Params instance
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func NewParams(evmDenom string) Params {
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return Params{
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EvmDenom: evmDenom,
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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: ethermint.AttoPhoton,
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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() params.ParamSetPairs {
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return params.ParamSetPairs{
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params.NewParamSetPair(ParamStoreKeyEVMDenom, &p.EvmDenom, validateEVMDenom),
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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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return sdk.ValidateDenom(p.EvmDenom)
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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 type: %T", i)
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}
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return sdk.ValidateDenom(denom)
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}
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