pool/codec/codec.go
Matt Morehouse f7c711bdeb
codec: simplify switch cases
Return directly when possible, rather than falling through to return
nil.
2023-05-16 17:30:59 -05:00

96 lines
2 KiB
Go

package codec
import (
"bytes"
"encoding/binary"
"fmt"
"net"
"time"
"github.com/btcsuite/btcd/btcec/v2"
"github.com/btcsuite/btcd/btcutil"
"github.com/btcsuite/btcd/wire"
"github.com/lightningnetwork/lnd/keychain"
"github.com/lightningnetwork/lnd/lntypes"
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
"github.com/lightningnetwork/lnd/lnwire"
)
var (
byteOrder = binary.BigEndian
)
// WriteElements writes each element in the elements slice to the passed buffer
// using WriteElement.
func WriteElements(w *bytes.Buffer, elements ...interface{}) error {
for _, element := range elements {
err := WriteElement(w, element)
if err != nil {
return err
}
}
return nil
}
// WriteElement is a one-stop shop to write the big endian representation of
// any element which is to be serialized.
func WriteElement(w *bytes.Buffer, element interface{}) error {
switch e := element.(type) {
case bool:
return lnwire.WriteBool(w, e)
case uint8:
return lnwire.WriteUint8(w, e)
case uint32:
return lnwire.WriteUint32(w, e)
case uint64:
return lnwire.WriteUint64(w, e)
case btcutil.Amount:
return lnwire.WriteSatoshi(w, e)
case chainfee.SatPerKWeight:
return lnwire.WriteUint64(w, uint64(e))
case *keychain.KeyDescriptor:
return WriteElements(w, e.KeyLocator, e.PubKey)
case keychain.KeyLocator:
if err := binary.Write(w, byteOrder, e.Family); err != nil {
return err
}
return binary.Write(w, byteOrder, e.Index)
case *btcec.PublicKey:
return lnwire.WritePublicKey(w, e)
case lntypes.Preimage:
return lnwire.WriteBytes(w, e[:])
case []byte:
return lnwire.WriteBytes(w, e)
case [32]byte:
return lnwire.WriteBytes(w, e[:])
case [33]byte:
return lnwire.WriteBytes(w, e[:])
case time.Time:
return lnwire.WriteUint64(w, uint64(e.UnixNano()))
case *wire.MsgTx:
return e.Serialize(w)
case wire.OutPoint:
return lnwire.WriteOutPoint(w, e)
case []net.Addr:
return lnwire.WriteNetAddrs(w, e)
default:
return fmt.Errorf("unhandled element type: %T", element)
}
}