// marshalValue returns a proto.Value initialized from the source
// reflect.Value, returning an error if the types are not compatible.
func marshalValue(v interface{}) (proto.Value, error) {
var r proto.Value
if v == nil {
return r, nil
}
switch t := v.(type) {
case nil:
return r, nil
case string:
r.SetBytes([]byte(t))
return r, nil
case []byte:
r.SetBytes(t)
return r, nil
case proto.Key:
r.SetBytes([]byte(t))
return r, nil
case time.Time:
err := r.SetTime(t)
return r, err
case gogoproto.Message:
err := r.SetProto(t)
return r, err
}
switch v := reflect.ValueOf(v); v.Kind() {
case reflect.Bool:
i := int64(0)
if v.Bool() {
i = 1
}
r.SetInt(i)
return r, nil
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
r.SetInt(v.Int())
return r, nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
r.SetInt(int64(v.Uint()))
return r, nil
case reflect.Float32, reflect.Float64:
r.SetFloat(v.Float())
return r, nil
case reflect.String:
r.SetBytes([]byte(v.String()))
return r, nil
}
return r, fmt.Errorf("unable to marshal value: %s", v)
}
// marshalValue returns a proto.Value initialized from the source
// interface{}, returning an error if the types are not compatible.
func marshalValue(v interface{}) (proto.Value, error) {
var r proto.Value
// Handle a few common types via a type switch.
switch t := v.(type) {
case nil:
return r, nil
case bool:
i := int64(0)
if t {
i = 1
}
r.SetInt(i)
return r, nil
case string:
r.SetBytes([]byte(t))
return r, nil
case []byte:
r.SetBytes(t)
return r, nil
case proto.Key:
r.SetBytes([]byte(t))
return r, nil
case time.Time:
r.SetTime(t)
return r, nil
case gogoproto.Message:
err := r.SetProto(t)
return r, err
}
// Handle all of the Go primitive types besides struct and pointers. This
// switch also handles types based on a primitive type (e.g. "type MyInt
// int").
switch v := reflect.ValueOf(v); v.Kind() {
case reflect.Bool:
i := int64(0)
if v.Bool() {
i = 1
}
r.SetInt(i)
return r, nil
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
r.SetInt(v.Int())
return r, nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
r.SetInt(int64(v.Uint()))
return r, nil
case reflect.Float32, reflect.Float64:
r.SetFloat(v.Float())
return r, nil
case reflect.String:
r.SetBytes([]byte(v.String()))
return r, nil
}
return r, fmt.Errorf("unable to marshal value: %s", v)
}
