func commandInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
var cmd CommandInfo
var err error
if n != 6 {
return nil, fmt.Errorf("redis: got %d elements in COMMAND reply, wanted 6")
}
cmd.Name, err = rd.ReadStringReply()
if err != nil {
return nil, err
}
arity, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
cmd.Arity = int8(arity)
flags, err := rd.ReadReply(stringSliceParser)
if err != nil {
return nil, err
}
cmd.Flags = flags.([]string)
firstKeyPos, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
cmd.FirstKeyPos = int8(firstKeyPos)
lastKeyPos, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
cmd.LastKeyPos = int8(lastKeyPos)
stepCount, err := rd.ReadIntReply()
if err != nil {
return nil, err
}
cmd.StepCount = int8(stepCount)
for _, flag := range cmd.Flags {
if flag == "readonly" {
cmd.ReadOnly = true
break
}
}
return &cmd, nil
}
func commandInfoSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
m := make(map[string]*CommandInfo, n)
for i := int64(0); i < n; i++ {
v, err := rd.ReadReply(commandInfoParser)
if err != nil {
return nil, err
}
vv := v.(*CommandInfo)
m[vv.Name] = vv
}
return m, nil
}
// Implements proto.MultiBulkParse
func sliceParser(rd *proto.Reader, n int64) (interface{}, error) {
vals := make([]interface{}, 0, n)
for i := int64(0); i < n; i++ {
v, err := rd.ReadReply(sliceParser)
if err == Nil {
vals = append(vals, nil)
} else if err != nil {
return nil, err
} else {
switch vv := v.(type) {
case []byte:
vals = append(vals, string(vv))
default:
vals = append(vals, v)
}
}
}
return vals, nil
}
func geoPosSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
positions := make([]*GeoPos, 0, n)
for i := int64(0); i < n; i++ {
v, err := rd.ReadReply(geoPosParser)
if err != nil {
if err == Nil {
positions = append(positions, nil)
continue
}
return nil, err
}
switch v := v.(type) {
case *GeoPos:
positions = append(positions, v)
default:
return nil, fmt.Errorf("got %T, expected *GeoPos", v)
}
}
return positions, nil
}