func typeMarshaler(t reflect.Type) marshalFunc {
if t.Implements(textMarshalerType) {
return textMarshaler
}
switch t.Kind() {
case reflect.Bool:
return boolMarshaler
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return intMarshaler
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return uintMarshaler
case reflect.Float32:
return float32Marshaler
case reflect.Float64:
return float64Marshaler
case reflect.String:
return stringMarshaler
case reflect.Slice:
return newSliceMarshaler(t)
case reflect.Array:
return newArrayMarshaler(t)
default:
panic(fmt.Sprintf("dynamodb: %s type is not supported", t.Kind()))
}
}
// makeWriter creates a writer function for the given type.
func makeWriter(typ reflect.Type) (writer, error) {
kind := typ.Kind()
switch {
case typ.Implements(encoderInterface):
return writeEncoder, nil
case kind != reflect.Ptr && reflect.PtrTo(typ).Implements(encoderInterface):
return writeEncoderNoPtr, nil
case kind == reflect.Interface:
return writeInterface, nil
case typ.AssignableTo(reflect.PtrTo(bigInt)):
return writeBigIntPtr, nil
case typ.AssignableTo(bigInt):
return writeBigIntNoPtr, nil
case isUint(kind):
return writeUint, nil
case kind == reflect.Bool:
return writeBool, nil
case kind == reflect.String:
return writeString, nil
case kind == reflect.Slice && isByte(typ.Elem()):
return writeBytes, nil
case kind == reflect.Array && isByte(typ.Elem()):
return writeByteArray, nil
case kind == reflect.Slice || kind == reflect.Array:
return makeSliceWriter(typ)
case kind == reflect.Struct:
return makeStructWriter(typ)
case kind == reflect.Ptr:
return makePtrWriter(typ)
default:
return nil, fmt.Errorf("rlp: type %v is not RLP-serializable", typ)
}
}
func convertVal(t reflect.Type, v reflect.Value) reflect.Value {
var ptr Pointer
if v.Type() == obj_t {
ptr = v.Interface().(*Object).GetPtr()
} else if v.Type() == ptr_t {
ptr = v.Interface().(Pointer)
}
if ptr != nil {
var ret reflect.Value
if t.Implements(ptr_setter_i) {
// Desired type implements PointerSetter so we are creating
// new value with desired type and set it from ptr
if t.Kind() == reflect.Ptr {
ret = reflect.New(t.Elem())
} else {
ret = reflect.Zero(t)
}
ret.Interface().(PointerSetter).SetPtr(ptr)
} else if t.Kind() == reflect.Ptr {
// t doesn't implements PointerSetter but it is pointer
// so we bypass type checking and setting it from ptr.
ret = valueFromPointer(ptr, t)
}
return ret
}
return v
}
func getValueParser(t reflect.Type) func(s string) (reflect.Value, error) {
if parser, ok := valueParsers[t]; ok {
return parser
}
if t.Implements(unmarshalerType) {
return func(s string) (reflect.Value, error) {
v := reflect.Zero(t)
buff, err := json.Marshal(s)
if err != nil {
return v, err
}
err = v.Interface().(json.Unmarshaler).UnmarshalJSON(buff)
return v, err
}
}
tt := reflect.PtrTo(t)
if tt.Implements(unmarshalerType) {
return func(s string) (reflect.Value, error) {
v := reflect.New(t)
buff, err := json.Marshal(s)
if err != nil {
return v, err
}
err = v.Interface().(json.Unmarshaler).UnmarshalJSON(buff)
return reflect.Indirect(v), err
}
}
return nil
}
func (m *structCache) getDecoder(typ reflect.Type) decoderFunc {
if decoder, ok := typDecMap[typ]; ok {
return decoder
}
if typ.Implements(unmarshalerType) {
return unmarshalValue
}
kind := typ.Kind()
switch kind {
case reflect.Slice:
elemKind := typ.Elem().Kind()
if dec := sliceDecoders[elemKind]; dec != nil {
return dec
}
case reflect.Ptr:
fallthrough
case reflect.Struct:
if m.ext != nil {
if decoder, ok := m.ext.decTypeMap[typ]; ok {
return decoder
}
}
}
return valueDecoders[kind]
}
// ShouldNotImplement receives exactly two parameters and ensures
// that the first does NOT implement the interface type of the second.
func ShouldNotImplement(actual interface{}, expectedList ...interface{}) string {
if fail := need(1, expectedList); fail != success {
return fail
}
expected := expectedList[0]
if fail := ShouldBeNil(expected); fail != success {
return shouldCompareWithInterfacePointer
}
if fail := ShouldNotBeNil(actual); fail != success {
return shouldNotBeNilActual
}
var actualType reflect.Type
if reflect.TypeOf(actual).Kind() != reflect.Ptr {
actualType = reflect.PtrTo(reflect.TypeOf(actual))
} else {
actualType = reflect.TypeOf(actual)
}
expectedType := reflect.TypeOf(expected)
if fail := ShouldNotBeNil(expectedType); fail != success {
return shouldCompareWithInterfacePointer
}
expectedInterface := expectedType.Elem()
if actualType.Implements(expectedInterface) {
return fmt.Sprintf(shouldNotHaveImplemented, actualType, expectedInterface)
}
return success
}
func Decoder(typ reflect.Type) valueDecoder {
if typ == timeType {
return decodeTimeValue
}
if reflect.PtrTo(typ).Implements(scannerType) {
return decodeScannerAddrValue
}
if typ.Implements(scannerType) {
return decodeScannerValue
}
kind := typ.Kind()
if kind == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
return decodeBytesValue
}
if dec := valueDecoders[kind]; dec != nil {
return dec
}
return nil
}
// isScalar returns true if the type can be parsed from a single string
func isScalar(t reflect.Type) (scalar, boolean bool) {
// If it implements encoding.TextUnmarshaler then use that
if t.Implements(textUnmarshalerType) {
// scalar=YES, boolean=NO
return true, false
}
// If we have a pointer then dereference it
if t.Kind() == reflect.Ptr {
t = t.Elem()
}
// Check for other special types
switch t {
case durationType, mailAddressType, ipType, macType:
// scalar=YES, boolean=NO
return true, false
}
// Fall back to checking the kind
switch t.Kind() {
case reflect.Bool:
// scalar=YES, boolean=YES
return true, true
case reflect.String, reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64,
reflect.Float32, reflect.Float64:
// scalar=YES, boolean=NO
return true, false
}
// scalar=NO, boolean=NO
return false, false
}
func getTypeEncoder(typ reflect.Type) encoderFunc {
kind := typ.Kind()
if typ.Implements(encoderType) {
return encodeCustomValue
}
// Addressable struct field value.
if reflect.PtrTo(typ).Implements(encoderType) {
return encodeCustomValuePtr
}
if typ.Implements(marshalerType) {
return marshalValue
}
if encoder, ok := typEncMap[typ]; ok {
return encoder
}
if kind == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
return encodeBytesValue
}
return valueEncoders[kind]
}
func getDecoder(typ reflect.Type) decoderFunc {
kind := typ.Kind()
// Addressable struct field value.
if kind != reflect.Ptr && reflect.PtrTo(typ).Implements(decoderType) {
return decodeCustomValuePtr
}
if typ.Implements(decoderType) {
return decodeCustomValue
}
if typ.Implements(unmarshalerType) {
return unmarshalValue
}
if decoder, ok := typDecMap[typ]; ok {
return decoder
}
if kind == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
return decodeBytesValue
}
return valueDecoders[kind]
}
func makeDecoder(typ reflect.Type, tags tags) (dec decoder, err error) {
kind := typ.Kind()
switch {
case typ == rawValueType:
return decodeRawValue, nil
case typ.Implements(decoderInterface):
return decodeDecoder, nil
case kind != reflect.Ptr && reflect.PtrTo(typ).Implements(decoderInterface):
return decodeDecoderNoPtr, nil
case typ.AssignableTo(reflect.PtrTo(bigInt)):
return decodeBigInt, nil
case typ.AssignableTo(bigInt):
return decodeBigIntNoPtr, nil
case isUint(kind):
return decodeUint, nil
case kind == reflect.Bool:
return decodeBool, nil
case kind == reflect.String:
return decodeString, nil
case kind == reflect.Slice || kind == reflect.Array:
return makeListDecoder(typ, tags)
case kind == reflect.Struct:
return makeStructDecoder(typ)
case kind == reflect.Ptr:
if tags.nilOK {
return makeOptionalPtrDecoder(typ)
}
return makePtrDecoder(typ)
case kind == reflect.Interface:
return decodeInterface, nil
default:
return nil, fmt.Errorf("rlp: type %v is not RLP-serializable", typ)
}
}
func getSetter(outt reflect.Type, out reflect.Value) Setter {
setterMutex.RLock()
style := setterStyle[outt]
setterMutex.RUnlock()
if style == setterNone {
return nil
}
if style == setterUnknown {
setterMutex.Lock()
defer setterMutex.Unlock()
if outt.Implements(setterIface) {
setterStyle[outt] = setterType
} else if reflect.PtrTo(outt).Implements(setterIface) {
setterStyle[outt] = setterAddr
} else {
setterStyle[outt] = setterNone
return nil
}
style = setterStyle[outt]
}
if style == setterAddr {
if !out.CanAddr() {
return nil
}
out = out.Addr()
} else if outt.Kind() == reflect.Ptr && out.IsNil() {
out.Set(reflect.New(outt.Elem()))
}
return out.Interface().(Setter)
}
func IsSupportUnmarshal(t reflect.Type) bool {
if t.Kind() != reflect.Ptr {
t = reflect.PtrTo(t)
}
return t.Implements(unmarshalerType)
}
func implementsUnpacker(t reflect.Type) bool {
for _, tUnpack := range tUnpackers {
if t.Implements(tUnpack) {
return true
}
}
return false
}
func isOkType(v reflect.Type) bool {
if v.Implements(typeOfPropertyLoadSaver) {
return true
}
if v.Kind() == reflect.Ptr && v.Elem().Kind() == reflect.Struct {
return true
}
return false
}
// isUnmarshaler reports whether type t implements Unmarshaler.
func isUnmarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isUnmarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isUnmarshaler")
}
return t.Implements(unmarshalerType)
}
func (t Type) Match(rt reflect.Type) bool {
if rt.Implements(object_caster) {
return t.IsA(TYPE_OBJECT)
}
if rt.Implements(type_getter) {
if rt.Kind() == reflect.Ptr {
rt = rt.Elem()
}
r := reflect.New(rt).Interface().(TypeGetter).Type()
return t.QName() == r.QName()
}
switch rt.Kind() {
case reflect.Invalid:
return t == TYPE_INVALID
case reflect.String:
return t == TYPE_STRING
case reflect.Int:
return t == TYPE_GO_INT
case reflect.Uint:
return t == TYPE_GO_UINT
case reflect.Int8:
return t == TYPE_CHAR
case reflect.Uint8:
return t == TYPE_UCHAR
case reflect.Int32:
return t == TYPE_GO_INT32
case reflect.Uint32:
return t == TYPE_GO_UINT32
case reflect.Int64:
return t == TYPE_INT64
case reflect.Uint64:
return t == TYPE_UINT64
case reflect.Bool:
return t == TYPE_BOOLEAN
case reflect.Float32:
return t == TYPE_FLOAT
case reflect.Float64:
return t == TYPE_DOUBLE
case reflect.Ptr:
return t == TYPE_POINTER
}
return false
}
func validateModelType(sqlType string, goType reflect.Type) error {
// If the go type implements the driver.Valuer and sql.Scanner
// interfaces, just ignore the sql type and assume it is doing the
// right thing. It would be possible to instantiate the go type and
// check to see if it can handle the sql type, but that seems overly
// complicated for the benefit.
if goType.Implements(valuerType) &&
reflect.PtrTo(goType).Implements(scannerType) {
return nil
}
sqlType = strings.ToLower(sqlType)
baseType := sqlBaseType(sqlType)
valid := false
switch baseType {
case "int":
valid = validateIntType(32, sqlType, goType)
case "tinyint":
// The "(1)" is really a formatting specifier, but MySQL uses it
// when "bool" or "boolean" is specified as the type.
valid = (sqlType == "tinyint(1)" && goType.Kind() == reflect.Bool)
valid = valid || validateIntType(8, sqlType, goType)
case "smallint":
valid = validateIntType(16, sqlType, goType)
case "mediumint":
valid = validateIntType(32, sqlType, goType)
case "bigint":
valid = validateIntType(64, sqlType, goType)
case "bit":
valid = validateBitType(sqlType, goType)
case "float":
valid = validateFloatType(32, goType)
case "double":
valid = validateFloatType(64, goType)
case "decimal":
valid = validateFloatType(64, goType)
case "date", "time", "datetime", "timestamp":
valid = validateDateTimeType(goType)
case "char", "varchar", "binary", "varbinary":
fallthrough
case "blob", "tinyblob", "mediumblob", "longblob":
fallthrough
case "text", "tinytext", "mediumtext", "longtext":
valid = validateStringType(goType)
case "enum":
valid = (goType.Kind() == reflect.String)
case "set":
valid = (goType == setStringType)
}
if valid {
return nil
}
return fmt.Errorf("incompatible types: \"%s\" vs \"%s\"", sqlType, goType)
}
// Call this once after each struct type declaration
func GetModelInfoFromType(modelType reflect.Type) *ModelInfo {
if modelType.Kind() == reflect.Ptr {
modelType = modelType.Elem()
}
if modelType.Kind() != reflect.Struct {
return nil
}
if modelType.Implements(reflect.TypeOf((*sql.Scanner)(nil)).Elem()) {
return nil
}
modelName := modelType.Name()
// Check cache
if allModelInfos[modelName] != nil {
return allModelInfos[modelName]
}
// Construct
m := &ModelInfo{}
allModelInfos[modelName] = m
m.Type = modelType
m.TableName = strings.ToLower(modelName)
// Fields
numFields := m.Type.NumField()
for i := 0; i < numFields; i++ {
field := m.Type.Field(i)
if field.Tag.Get("db") != "" {
column, null, autoinc := parseDBTag(field.Tag.Get("db"))
m.Fields = append(m.Fields, &ModelField{field, column, null, autoinc})
}
}
// Simple & Prefixed
fieldNames := []string{}
fieldInsertNames := []string{}
ph := []string{}
for _, field := range m.Fields {
fieldName, _, _ := parseDBTag(field.Tag.Get("db"))
fieldNames = append(fieldNames, fieldName)
if !field.Autoinc {
fieldInsertNames = append(fieldInsertNames, fieldName)
ph = append(ph, fmt.Sprintf("$%v", len(ph)+1))
}
}
m.FieldsSimple = strings.Join(fieldNames, ", ")
m.FieldsPrefixed = m.TableName + "." + strings.Join(fieldNames, ", "+m.TableName+".")
m.FieldsInsert = strings.Join(fieldInsertNames, ", ")
m.Placeholders = strings.Join(ph, ", ")
return m
}
func IsImplemented(t, target reflect.Type) bool {
if t.Implements(target) {
return true
}
if t.Kind() == reflect.Struct {
return reflect.PtrTo(t).Implements(target)
} else if t.Kind() == reflect.Ptr {
return t.Elem().Implements(target)
}
return false
}
func typeIsUnpacker(t reflect.Type) (reflect.Value, bool) {
if t.Implements(tUnpacker) {
return reflect.New(t).Elem(), true
}
if reflect.PtrTo(t).Implements(tUnpacker) {
return reflect.New(t), true
}
return reflect.Value{}, false
}
func IfImplementsModel(t reflect.Type) bool {
if t.Implements(_modelType) {
return true
}
if t.Kind() != reflect.Ptr {
if reflect.PtrTo(t).Implements(_modelType) {
return true
}
}
return false
}
//获取t对应的类型信息，不支持slice, function, map, pointer, interface, channel
//如果parentIdx的长度>0，则表示t是strut中的字段的类型信息, t为字段对应的类型
func getKeyInfoByParent(t reflect.Type, parent *keyInfo, parentIdx []int) (ki *keyInfo, err error) {
ki = &keyInfo{}
//判断是否实现了hasher接口
if t.Implements(hasherT) {
ki.isHasher = true
return
}
ki.kind = t.Kind()
if _, ok := engM[ki.kind]; ok {
//简单类型，不需要再分解元素类型的信息
ki.index = parentIdx
} else {
//some types can be used as key, we can use equals to test
switch ki.kind {
case reflect.Chan, reflect.Slice, reflect.Func, reflect.Map, reflect.Ptr, reflect.Interface:
err = NonSupportKey
case reflect.Struct:
if parent == nil {
//parent==nil表示t不是一个嵌套的struct，所以这里需要初始化fields
parent = ki
ki.fields = make([]*keyInfo, 0, t.NumField())
}
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
//skip unexported field,
if len(f.PkgPath) > 0 {
continue
}
idx := make([]int, len(parentIdx), len(parentIdx)+1)
copy(idx, parentIdx)
idx = append(idx, i)
if fi, e := getKeyInfoByParent(f.Type, parent, idx); e != nil {
err = e
return
} else {
//fi.index = i
parent.fields = append(ki.fields, fi)
}
}
case reflect.Array:
if ki.elementInfo, err = getKeyInfo(t.Elem()); err != nil {
return
}
ki.size = t.Len()
ki.index = parentIdx
}
}
return
}
func (p *protoUnmarshaller) getObject(reflectType reflect.Type, object []byte) (interface{}, error) {
if reflectType.Implements(reflect.TypeOf((*proto.Message)(nil)).Elem()) {
protoMessage := reflect.New(reflectType.Elem()).Interface().(proto.Message)
if err := proto.Unmarshal(object, protoMessage); err != nil {
return nil, err
}
return protoMessage, nil
}
objectPtr := reflect.New(reflectType).Interface()
if err := gob.NewDecoder(bytes.NewBuffer(object)).Decode(objectPtr); err != nil {
return nil, err
}
return reflect.ValueOf(objectPtr).Elem().Interface(), nil
}
func getDecoder(typ reflect.Type) decoderFunc {
kind := typ.Kind()
// Addressable struct field value.
if kind != reflect.Ptr && reflect.PtrTo(typ).Implements(decoderType) {
return decodeCustomValuePtr
}
if typ.Implements(decoderType) {
return decodeCustomValue
}
if typ.Implements(unmarshalerType) {
return unmarshalValue
}
if decoder, ok := typDecMap[typ]; ok {
return decoder
}
switch kind {
case reflect.Ptr:
return ptrDecoderFunc(typ)
case reflect.Slice:
elem := typ.Elem()
switch elem.Kind() {
case reflect.Uint8:
return decodeBytesValue
}
switch elem {
case stringType:
return decodeStringSliceValue
}
case reflect.Array:
if typ.Elem().Kind() == reflect.Uint8 {
return decodeByteArrayValue
}
case reflect.Map:
if typ.Key() == stringType {
switch typ.Elem() {
case stringType:
return decodeMapStringStringValue
case interfaceType:
return decodeMapStringInterfaceValue
}
}
}
return valueDecoders[kind]
}
// newTypeEncoder constructs an encoderFunc for a type.
// The returned encoder only checks CanAddr when allowAddr is true.
func newTypeEncoder(t reflect.Type, allowAddr bool) encoderFunc {
if t.Implements(marshalerType) {
return marshalerEncoder
}
if t.Kind() != reflect.Ptr && allowAddr {
if reflect.PtrTo(t).Implements(marshalerType) {
return newCondAddrEncoder(addrMarshalerEncoder, newTypeEncoder(t, false))
}
}
// Check for psuedo-types first
switch t {
case timeType:
return timePseudoTypeEncoder
}
switch t.Kind() {
case reflect.Bool:
return boolEncoder
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return intEncoder
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return uintEncoder
case reflect.Float32, reflect.Float64:
return floatEncoder
case reflect.String:
return stringEncoder
case reflect.Interface:
return interfaceEncoder
case reflect.Struct:
return newStructEncoder(t)
case reflect.Map:
return newMapEncoder(t)
case reflect.Slice:
return newSliceEncoder(t)
case reflect.Array:
return newArrayEncoder(t)
case reflect.Ptr:
return newPtrEncoder(t)
case reflect.Func:
// functions are a special case as they can be used internally for
// optional arguments. Just return the raw function, if somebody tries
// to pass a function to the database the JSON marshaller will catch this
// anyway.
return funcEncoder
default:
return unsupportedTypeEncoder
}
}
// newTypeEncoder constructs an encoderFunc for a type.
// The returned encoder only checks CanAddr when allowAddr is true.
func newTypeEncoder(t reflect.Type, allowAddr bool) encoderFunc {
// Special case for time.Time because it already implements
// TextMarshaler which is not what we want as EDN.
if t == timeType {
return timeEncoder
}
if t.Kind() == reflect.Ptr && t.Elem() == timeType {
return newPtrEncoder(t)
}
if t.Implements(textMarshalerType) {
return textMarshalerEncoder
}
if t.Kind() != reflect.Ptr && allowAddr {
if reflect.PtrTo(t).Implements(textMarshalerType) {
return newCondAddrEncoder(addrTextMarshalerEncoder, newTypeEncoder(t, false))
}
}
switch t.Kind() {
case reflect.Bool:
return boolEncoder
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return intEncoder
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return uintEncoder
case reflect.Float32:
return float32Encoder
case reflect.Float64:
return float64Encoder
case reflect.String:
return stringEncoder
case reflect.Interface:
return interfaceEncoder
case reflect.Map:
return newMapEncoder(t)
case reflect.Slice:
return newSliceEncoder(t)
case reflect.Array:
return newArrayEncoder(t)
case reflect.Ptr:
return newPtrEncoder(t)
default:
if t == listType {
return listEncoder
}
return unsupportedTypeEncoder
}
}
// newTypeEncoder constructs an encoderFunc for a type.
// The returned encoder only checks CanAddr when allowAddr is true.
func newTypeEncoder(t reflect.Type, allowAddr bool) encoderFunc {
if t.Implements(marshalerType) {
return marshalerEncoder
}
if t.Kind() != reflect.Ptr && allowAddr {
if reflect.PtrTo(t).Implements(marshalerType) {
return newCondAddrEncoder(addrMarshalerEncoder, newTypeEncoder(t, false))
}
}
if t.Implements(textMarshalerType) {
return textMarshalerEncoder
}
if t.Kind() != reflect.Ptr && allowAddr {
if reflect.PtrTo(t).Implements(textMarshalerType) {
return newCondAddrEncoder(addrTextMarshalerEncoder, newTypeEncoder(t, false))
}
}
switch t.Kind() {
case reflect.Bool:
return boolEncoder
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return intEncoder
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return uintEncoder
case reflect.Float32:
return float32Encoder
case reflect.Float64:
return float64Encoder
case reflect.String:
return stringEncoder
case reflect.Interface:
return interfaceEncoder
case reflect.Struct:
return newStructEncoder(t)
case reflect.Map:
return newMapEncoder(t)
case reflect.Slice:
return newSliceEncoder(t)
case reflect.Array:
return newArrayEncoder(t)
case reflect.Ptr:
return newPtrEncoder(t)
default:
return unsupportedTypeEncoder
}
}
func (m *structCache) getTypeEncoder(typ reflect.Type) encoderFunc {
if typ.Implements(marshalerType) {
return marshalValue
}
kind := typ.Kind()
switch kind {
case reflect.Slice:
elemKind := typ.Elem().Kind()
if enc := sliceEncoders[elemKind]; enc != nil {
return enc
}
}
return valueEncoders[kind]
}
func ensureTags(t *testing.T, gvk schema.GroupVersionKind, tp reflect.Type, parents []reflect.Type) {
// This type handles its own encoding/decoding and doesn't need json tags
if tp.Implements(marshalerType) && (tp.Implements(unmarshalerType) || reflect.PtrTo(tp).Implements(unmarshalerType)) {
return
}
parents = append(parents, tp)
switch tp.Kind() {
case reflect.Map, reflect.Slice, reflect.Ptr:
ensureTags(t, gvk, tp.Elem(), parents)
case reflect.String, reflect.Bool, reflect.Float32, reflect.Int, reflect.Int32, reflect.Int64, reflect.Uint8, reflect.Uintptr, reflect.Uint32, reflect.Uint64, reflect.Interface:
// no-op
case reflect.Struct:
for i := 0; i < tp.NumField(); i++ {
f := tp.Field(i)
jsonTag := f.Tag.Get("json")
if len(jsonTag) == 0 {
t.Errorf("External types should have json tags. %#v tags on field %v are: %s", gvk, f.Name, f.Tag)
for i, tp := range parents {
t.Logf("%s%v", strings.Repeat(" ", i), tp)
}
}
jsonTagName := strings.Split(jsonTag, ",")[0]
if len(jsonTagName) > 0 && (jsonTagName[0] < 'a' || jsonTagName[0] > 'z') && jsonTagName != "-" && allowedNonstandardJSONNames[tp] != jsonTagName {
t.Errorf("External types should have json names starting with lowercase letter. %#v has json tag on field %v with name %s", gvk, f.Name, jsonTagName)
t.Log(tp)
t.Log(allowedNonstandardJSONNames[tp])
for i, tp := range parents {
t.Logf("%s%v", strings.Repeat(" ", i), tp)
}
}
ensureTags(t, gvk, f.Type, parents)
}
default:
t.Errorf("Unexpected type %v in %#v", tp.Kind(), gvk)
for i, tp := range parents {
t.Logf("%s%v:", strings.Repeat(" ", i), tp)
}
}
}