func setSingleImpl(node, data interface{}, decodedToken string, nameProvider *swag.NameProvider) error {
rValue := reflect.Indirect(reflect.ValueOf(node))
switch rValue.Kind() {
case reflect.Struct:
if ns, ok := node.(JSONSetable); ok { // pointer impl
return ns.JSONSet(decodedToken, data)
}
if rValue.Type().Implements(jsonSetableType) {
return node.(JSONSetable).JSONSet(decodedToken, data)
}
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
if !ok {
return fmt.Errorf("object has no field %q", decodedToken)
}
fld := rValue.FieldByName(nm)
if fld.IsValid() {
fld.Set(reflect.ValueOf(data))
}
return nil
case reflect.Map:
kv := reflect.ValueOf(decodedToken)
rValue.SetMapIndex(kv, reflect.ValueOf(data))
return nil
case reflect.Slice:
tokenIndex, err := strconv.Atoi(decodedToken)
if err != nil {
return err
}
sLength := rValue.Len()
if tokenIndex < 0 || tokenIndex >= sLength {
return fmt.Errorf("index out of bounds array[0,%d] index '%d'", sLength, tokenIndex)
}
elem := rValue.Index(tokenIndex)
if !elem.CanSet() {
return fmt.Errorf("can't set slice index %s to %v", decodedToken, data)
}
elem.Set(reflect.ValueOf(data))
return nil
default:
return fmt.Errorf("invalid token reference %q", decodedToken)
}
}
func getSingleImpl(node interface{}, decodedToken string, nameProvider *swag.NameProvider) (interface{}, reflect.Kind, error) {
rValue := reflect.Indirect(reflect.ValueOf(node))
kind := rValue.Kind()
switch kind {
case reflect.Struct:
if rValue.Type().Implements(jsonPointableType) {
r, err := node.(JSONPointable).JSONLookup(decodedToken)
if err != nil {
return nil, kind, err
}
return r, kind, nil
}
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
if !ok {
return nil, kind, fmt.Errorf("object has no field %q", decodedToken)
}
fld := rValue.FieldByName(nm)
return fld.Interface(), kind, nil
case reflect.Map:
kv := reflect.ValueOf(decodedToken)
mv := rValue.MapIndex(kv)
if mv.IsValid() && !swag.IsZero(mv) {
return mv.Interface(), kind, nil
}
return nil, kind, fmt.Errorf("object has no key %q", decodedToken)
case reflect.Slice:
tokenIndex, err := strconv.Atoi(decodedToken)
if err != nil {
return nil, kind, err
}
sLength := rValue.Len()
if tokenIndex < 0 || tokenIndex >= sLength {
return nil, kind, fmt.Errorf("index out of bounds array[0,%d] index '%d'", sLength-1, tokenIndex)
}
elem := rValue.Index(tokenIndex)
return elem.Interface(), kind, nil
default:
return nil, kind, fmt.Errorf("invalid token reference %q", decodedToken)
}
}
func (p *Pointer) set(node, data interface{}, nameProvider *swag.NameProvider) error {
knd := reflect.ValueOf(node).Kind()
if knd != reflect.Ptr && knd != reflect.Struct && knd != reflect.Map && knd != reflect.Slice && knd != reflect.Array {
return fmt.Errorf("only structs, pointers, maps and slices are supported for setting values")
}
if nameProvider == nil {
nameProvider = swag.DefaultJSONNameProvider
}
// Full document when empty
if len(p.referenceTokens) == 0 {
return nil
}
lastI := len(p.referenceTokens) - 1
for i, token := range p.referenceTokens {
isLastToken := i == lastI
decodedToken := Unescape(token)
if isLastToken {
return setSingleImpl(node, data, decodedToken, nameProvider)
}
rValue := reflect.Indirect(reflect.ValueOf(node))
kind := rValue.Kind()
switch kind {
case reflect.Struct:
if rValue.Type().Implements(jsonPointableType) {
r, err := node.(JSONPointable).JSONLookup(decodedToken)
if err != nil {
return err
}
fld := reflect.ValueOf(r)
if fld.CanAddr() && fld.Kind() != reflect.Interface && fld.Kind() != reflect.Map && fld.Kind() != reflect.Slice && fld.Kind() != reflect.Ptr {
node = fld.Addr().Interface()
continue
}
node = r
continue
}
nm, ok := nameProvider.GetGoNameForType(rValue.Type(), decodedToken)
if !ok {
return fmt.Errorf("object has no field %q", decodedToken)
}
fld := rValue.FieldByName(nm)
if fld.CanAddr() && fld.Kind() != reflect.Interface && fld.Kind() != reflect.Map && fld.Kind() != reflect.Slice && fld.Kind() != reflect.Ptr {
node = fld.Addr().Interface()
continue
}
node = fld.Interface()
case reflect.Map:
kv := reflect.ValueOf(decodedToken)
mv := rValue.MapIndex(kv)
if !mv.IsValid() {
return fmt.Errorf("object has no key %q", decodedToken)
}
if mv.CanAddr() && mv.Kind() != reflect.Interface && mv.Kind() != reflect.Map && mv.Kind() != reflect.Slice && mv.Kind() != reflect.Ptr {
node = mv.Addr().Interface()
continue
}
node = mv.Interface()
case reflect.Slice:
tokenIndex, err := strconv.Atoi(decodedToken)
if err != nil {
return err
}
sLength := rValue.Len()
if tokenIndex < 0 || tokenIndex >= sLength {
return fmt.Errorf("index out of bounds array[0,%d] index '%d'", sLength, tokenIndex)
}
elem := rValue.Index(tokenIndex)
if elem.CanAddr() && elem.Kind() != reflect.Interface && elem.Kind() != reflect.Map && elem.Kind() != reflect.Slice && elem.Kind() != reflect.Ptr {
node = elem.Addr().Interface()
continue
}
node = elem.Interface()
default:
return fmt.Errorf("invalid token reference %q", decodedToken)
}
}
return nil
}