package types import ( "bytes" sdkerrors "github.com/cosmos/cosmos-sdk/types/errors" "github.com/ethereum/go-ethereum/common" ) // IsEmptyHash returns true if the hash corresponds to an empty ethereum hex hash. func IsEmptyHash(hash string) bool { return bytes.Equal(common.HexToHash(hash).Bytes(), common.Hash{}.Bytes()) } // IsZeroAddress returns true if the address corresponds to an empty ethereum hex address. func IsZeroAddress(address string) bool { return bytes.Equal(common.HexToAddress(address).Bytes(), common.Address{}.Bytes()) } // ValidateAddress returns an error if the provided string is either not a hex formatted string address func ValidateAddress(address string) error { if !common.IsHexAddress(address) { return sdkerrors.Wrapf( sdkerrors.ErrInvalidAddress, "address '%s' is not a valid ethereum hex address", address, ) } return nil }