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params.go
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params.go
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package types
import (
"fmt"
errorsmod "cosmossdk.io/errors"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
var (
KeyAllowedAddresses = []byte("AllowedAddresses")
DefaultAllowedAddresses = []string(nil) // no one allowed
)
// ParamKeyTable for minting module.
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
// NewParams creates a new Params object
func NewParams(
allowedAddresses []string,
) Params {
return Params{
AllowedAddresses: allowedAddresses,
}
}
// DefaultParams returns default x/denommetadata module parameters.
func DefaultParams() Params {
return Params{
AllowedAddresses: DefaultAllowedAddresses,
}
}
func (p Params) Validate() error {
return assertValidAddresses(p.AllowedAddresses)
}
func assertValidAddresses(i any) error {
addrs, ok := i.([]string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
idx := make(map[string]struct{}, len(addrs))
for _, a := range addrs {
// this also checks for empty addresses
if _, err := sdk.AccAddressFromBech32(a); err != nil {
return errorsmod.Wrapf(err, "address: %s", a)
}
if _, exists := idx[a]; exists {
return ErrDuplicate.Wrapf("address: %s", a)
}
idx[a] = struct{}{}
}
return nil
}
// Implements params.ParamSet.
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyAllowedAddresses, &p.AllowedAddresses, assertValidAddresses),
}
}