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package eth
import (
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/types"
)
// EncodeTransactions encodes a list of transactions into opaque transactions.
func EncodeTransactions(elems []*types.Transaction) ([]hexutil.Bytes, error) {
out := make([]hexutil.Bytes, len(elems))
for i, el := range elems {
dat, err := el.MarshalBinary()
if err != nil {
return nil, fmt.Errorf("failed to marshal tx %d: %w", i, err)
}
out[i] = dat
}
return out, nil
}
// DecodeTransactions decodes a list of opaque transactions into transactions.
func DecodeTransactions(data []hexutil.Bytes) ([]*types.Transaction, error) {
dest := make([]*types.Transaction, len(data))
for i := range dest {
var x types.Transaction
if err := x.UnmarshalBinary(data[i]); err != nil {
return nil, fmt.Errorf("failed to unmarshal tx %d: %w", i, err)
}
dest[i] = &x
}
return dest, nil
}
// TransactionsToHashes computes the transaction-hash for every transaction in the input.
func TransactionsToHashes(elems []*types.Transaction) []common.Hash {
out := make([]common.Hash, len(elems))
for i, el := range elems {
out[i] = el.Hash()
}
return out
}