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all: replace some cases of strings.SplitN with strings.Cut #28446 (#1007)

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Co-authored-by: Håvard Anda Estensen <haavard.ae@gmail.com>
This commit is contained in:
Daniel Liu 2025-04-28 18:07:59 +08:00 committed by GitHub
parent 7422a13f24
commit 80abc58f25
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GPG key ID: B5690EEEBB952194
5 changed files with 16 additions and 18 deletions
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4
cmd/p2psim/main.go
View file

@ -421,9 +421,7 @@ func rpcNode(ctx *cli.Context) error {
}
func rpcSubscribe(client *rpc.Client, out io.Writer, method string, args ...string) error {
parts := strings.SplitN(method, "_", 2)
namespace := parts[0]
method = parts[1]
namespace, method, _ := strings.Cut(method, "_")
ch := make(chan interface{})
subArgs := make([]interface{}, len(args)+1)
subArgs[0] = method

12
p2p/nat/nat.go
View file

@ -61,12 +61,12 @@ type Interface interface {
// "pmp:192.168.0.1" uses NAT-PMP with the given gateway address
func Parse(spec string) (Interface, error) {
var (
parts = strings.SplitN(spec, ":", 2)
mech = strings.ToLower(parts[0])
ip net.IP
before, after, found = strings.Cut(spec, ":")
mech = strings.ToLower(before)
ip net.IP
)
if len(parts) > 1 {
ip = net.ParseIP(parts[1])
if found {
ip = net.ParseIP(after)
if ip == nil {
return nil, errors.New("invalid IP address")
}
@ -86,7 +86,7 @@ func Parse(spec string) (Interface, error) {
case "pmp", "natpmp", "nat-pmp":
return PMP(ip), nil
default:
return nil, fmt.Errorf("unknown mechanism %q", parts[0])
return nil, fmt.Errorf("unknown mechanism %q", before)
}
}

8
p2p/simulations/http.go
View file

@ -482,12 +482,12 @@ func (s *Server) StreamNetworkEvents(w http.ResponseWriter, req *http.Request) {
func NewMsgFilters(filterParam string) (MsgFilters, error) {
filters := make(MsgFilters)
for _, filter := range strings.Split(filterParam, "-") {
protoCodes := strings.SplitN(filter, ":", 2)
if len(protoCodes) != 2 || protoCodes[0] == "" || protoCodes[1] == "" {
proto, codes, found := strings.Cut(filter, ":")
if !found || proto == "" || codes == "" {
return nil, fmt.Errorf("invalid message filter: %s", filter)
}
proto := protoCodes[0]
for _, code := range strings.Split(protoCodes[1], ",") {
for _, code := range strings.Split(codes, ",") {
if code == "*" || code == "-1" {
filters[MsgFilter{Proto: proto, Code: -1}] = struct{}{}
continue

4
rpc/json.go
View file

@ -86,8 +86,8 @@ func (msg *jsonrpcMessage) isUnsubscribe() bool {
}
func (msg *jsonrpcMessage) namespace() string {
elem := strings.SplitN(msg.Method, serviceMethodSeparator, 2)
return elem[0]
before, _, _ := strings.Cut(msg.Method, serviceMethodSeparator)
return before
}
func (msg *jsonrpcMessage) String() string {

6
rpc/service.go
View file

@ -93,13 +93,13 @@ func (r *serviceRegistry) registerName(name string, rcvr interface{}) error {
// callback returns the callback corresponding to the given RPC method name.
func (r *serviceRegistry) callback(method string) *callback {
elem := strings.SplitN(method, serviceMethodSeparator, 2)
if len(elem) != 2 {
before, after, found := strings.Cut(method, serviceMethodSeparator)
if !found {
return nil
}
r.mu.Lock()
defer r.mu.Unlock()
return r.services[elem[0]].callbacks[elem[1]]
return r.services[before].callbacks[after]
}
// subscription returns a subscription callback in the given service.