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@ -114,12 +114,12 @@ type Metadata struct {
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Unused []string
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}
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// Decode takes a map and uses reflection to convert it into the
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// given Go native structure. val must be a pointer to a struct.
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func Decode(m interface{}, rawVal interface{}) error {
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// Decode takes an input structure and uses reflection to translate it to
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// the output structure. output must be a pointer to a map or struct.
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func Decode(input interface{}, output interface{}) error {
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config := &DecoderConfig{
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Metadata: nil,
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Result: rawVal,
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Result: output,
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}
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decoder, err := NewDecoder(config)
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@ -127,7 +127,7 @@ func Decode(m interface{}, rawVal interface{}) error {
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return err
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}
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return decoder.Decode(m)
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return decoder.Decode(input)
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}
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// WeakDecode is the same as Decode but is shorthand to enable
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@ -147,6 +147,40 @@ func WeakDecode(input, output interface{}) error {
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return decoder.Decode(input)
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}
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// DecodeMetadata is the same as Decode, but is shorthand to
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// enable metadata collection. See DecoderConfig for more info.
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func DecodeMetadata(input interface{}, output interface{}, metadata *Metadata) error {
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config := &DecoderConfig{
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Metadata: metadata,
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Result: output,
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}
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decoder, err := NewDecoder(config)
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if err != nil {
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return err
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}
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return decoder.Decode(input)
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}
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// WeakDecodeMetadata is the same as Decode, but is shorthand to
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// enable both WeaklyTypedInput and metadata collection. See
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// DecoderConfig for more info.
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func WeakDecodeMetadata(input interface{}, output interface{}, metadata *Metadata) error {
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config := &DecoderConfig{
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Metadata: metadata,
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Result: output,
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WeaklyTypedInput: true,
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}
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decoder, err := NewDecoder(config)
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if err != nil {
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return err
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}
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return decoder.Decode(input)
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}
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// NewDecoder returns a new decoder for the given configuration. Once
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// a decoder has been returned, the same configuration must not be used
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// again.
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@ -184,68 +218,91 @@ func NewDecoder(config *DecoderConfig) (*Decoder, error) {
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// Decode decodes the given raw interface to the target pointer specified
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// by the configuration.
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func (d *Decoder) Decode(raw interface{}) error {
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return d.decode("", raw, reflect.ValueOf(d.config.Result).Elem())
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func (d *Decoder) Decode(input interface{}) error {
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return d.decode("", input, reflect.ValueOf(d.config.Result).Elem())
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}
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// Decodes an unknown data type into a specific reflection value.
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func (d *Decoder) decode(name string, data interface{}, val reflect.Value) error {
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if data == nil {
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// If the data is nil, then we don't set anything.
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func (d *Decoder) decode(name string, input interface{}, outVal reflect.Value) error {
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var inputVal reflect.Value
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if input != nil {
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inputVal = reflect.ValueOf(input)
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// We need to check here if input is a typed nil. Typed nils won't
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// match the "input == nil" below so we check that here.
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if inputVal.Kind() == reflect.Ptr && inputVal.IsNil() {
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input = nil
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}
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}
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if input == nil {
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// If the data is nil, then we don't set anything, unless ZeroFields is set
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// to true.
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if d.config.ZeroFields {
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outVal.Set(reflect.Zero(outVal.Type()))
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if d.config.Metadata != nil && name != "" {
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d.config.Metadata.Keys = append(d.config.Metadata.Keys, name)
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}
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}
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return nil
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}
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dataVal := reflect.ValueOf(data)
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if !dataVal.IsValid() {
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// If the data value is invalid, then we just set the value
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if !inputVal.IsValid() {
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// If the input value is invalid, then we just set the value
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// to be the zero value.
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val.Set(reflect.Zero(val.Type()))
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outVal.Set(reflect.Zero(outVal.Type()))
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if d.config.Metadata != nil && name != "" {
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d.config.Metadata.Keys = append(d.config.Metadata.Keys, name)
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}
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return nil
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}
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if d.config.DecodeHook != nil {
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// We have a DecodeHook, so let's pre-process the data.
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// We have a DecodeHook, so let's pre-process the input.
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var err error
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data, err = DecodeHookExec(
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input, err = DecodeHookExec(
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d.config.DecodeHook,
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dataVal.Type(), val.Type(), data)
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inputVal.Type(), outVal.Type(), input)
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if err != nil {
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return fmt.Errorf("error decoding '%s': %s", name, err)
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}
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}
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var err error
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dataKind := getKind(val)
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switch dataKind {
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outputKind := getKind(outVal)
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switch outputKind {
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case reflect.Bool:
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err = d.decodeBool(name, data, val)
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err = d.decodeBool(name, input, outVal)
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case reflect.Interface:
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err = d.decodeBasic(name, data, val)
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err = d.decodeBasic(name, input, outVal)
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case reflect.String:
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err = d.decodeString(name, data, val)
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err = d.decodeString(name, input, outVal)
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case reflect.Int:
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err = d.decodeInt(name, data, val)
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err = d.decodeInt(name, input, outVal)
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case reflect.Uint:
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err = d.decodeUint(name, data, val)
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err = d.decodeUint(name, input, outVal)
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case reflect.Float32:
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err = d.decodeFloat(name, data, val)
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err = d.decodeFloat(name, input, outVal)
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case reflect.Struct:
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err = d.decodeStruct(name, data, val)
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err = d.decodeStruct(name, input, outVal)
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case reflect.Map:
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err = d.decodeMap(name, data, val)
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err = d.decodeMap(name, input, outVal)
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case reflect.Ptr:
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err = d.decodePtr(name, data, val)
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err = d.decodePtr(name, input, outVal)
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case reflect.Slice:
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err = d.decodeSlice(name, data, val)
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err = d.decodeSlice(name, input, outVal)
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case reflect.Array:
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err = d.decodeArray(name, input, outVal)
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case reflect.Func:
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err = d.decodeFunc(name, data, val)
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err = d.decodeFunc(name, input, outVal)
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default:
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// If we reached this point then we weren't able to decode it
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return fmt.Errorf("%s: unsupported type: %s", name, dataKind)
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return fmt.Errorf("%s: unsupported type: %s", name, outputKind)
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}
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// If we reached here, then we successfully decoded SOMETHING, so
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// mark the key as used if we're tracking metadata.
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// mark the key as used if we're tracking metainput.
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if d.config.Metadata != nil && name != "" {
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d.config.Metadata.Keys = append(d.config.Metadata.Keys, name)
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}
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@ -256,7 +313,10 @@ func (d *Decoder) decode(name string, data interface{}, val reflect.Value) error
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// This decodes a basic type (bool, int, string, etc.) and sets the
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// value to "data" of that type.
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func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.ValueOf(data)
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if val.IsValid() && val.Elem().IsValid() {
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return d.decode(name, data, val.Elem())
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}
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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if !dataVal.IsValid() {
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dataVal = reflect.Zero(val.Type())
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}
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@ -273,7 +333,7 @@ func (d *Decoder) decodeBasic(name string, data interface{}, val reflect.Value)
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}
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func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.ValueOf(data)
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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dataKind := getKind(dataVal)
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converted := true
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@ -292,12 +352,22 @@ func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value)
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val.SetString(strconv.FormatUint(dataVal.Uint(), 10))
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case dataKind == reflect.Float32 && d.config.WeaklyTypedInput:
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val.SetString(strconv.FormatFloat(dataVal.Float(), 'f', -1, 64))
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case dataKind == reflect.Slice && d.config.WeaklyTypedInput:
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case dataKind == reflect.Slice && d.config.WeaklyTypedInput,
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dataKind == reflect.Array && d.config.WeaklyTypedInput:
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dataType := dataVal.Type()
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elemKind := dataType.Elem().Kind()
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switch {
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case elemKind == reflect.Uint8:
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val.SetString(string(dataVal.Interface().([]uint8)))
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switch elemKind {
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case reflect.Uint8:
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var uints []uint8
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if dataKind == reflect.Array {
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uints = make([]uint8, dataVal.Len(), dataVal.Len())
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for i := range uints {
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uints[i] = dataVal.Index(i).Interface().(uint8)
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}
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} else {
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uints = dataVal.Interface().([]uint8)
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}
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val.SetString(string(uints))
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default:
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converted = false
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}
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@ -315,7 +385,7 @@ func (d *Decoder) decodeString(name string, data interface{}, val reflect.Value)
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}
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func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.ValueOf(data)
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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dataKind := getKind(dataVal)
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dataType := dataVal.Type()
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@ -357,7 +427,7 @@ func (d *Decoder) decodeInt(name string, data interface{}, val reflect.Value) er
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}
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func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.ValueOf(data)
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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dataKind := getKind(dataVal)
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switch {
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@ -400,7 +470,7 @@ func (d *Decoder) decodeUint(name string, data interface{}, val reflect.Value) e
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}
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func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.ValueOf(data)
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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dataKind := getKind(dataVal)
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switch {
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@ -431,7 +501,7 @@ func (d *Decoder) decodeBool(name string, data interface{}, val reflect.Value) e
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}
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func (d *Decoder) decodeFloat(name string, data interface{}, val reflect.Value) error {
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dataVal := reflect.ValueOf(data)
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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dataKind := getKind(dataVal)
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dataType := dataVal.Type()
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@ -487,13 +557,28 @@ func (d *Decoder) decodeMap(name string, data interface{}, val reflect.Value) er
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valMap = reflect.MakeMap(mapType)
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}
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// Check input type
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// Check input type and based on the input type jump to the proper func
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dataVal := reflect.Indirect(reflect.ValueOf(data))
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if dataVal.Kind() != reflect.Map {
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// In weak mode, we accept a slice of maps as an input...
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if d.config.WeaklyTypedInput {
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switch dataVal.Kind() {
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case reflect.Map:
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return d.decodeMapFromMap(name, dataVal, val, valMap)
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case reflect.Struct:
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return d.decodeMapFromStruct(name, dataVal, val, valMap)
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case reflect.Array, reflect.Slice:
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if d.config.WeaklyTypedInput {
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return d.decodeMapFromSlice(name, dataVal, val, valMap)
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}
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fallthrough
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default:
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return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind())
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}
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}
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func (d *Decoder) decodeMapFromSlice(name string, dataVal reflect.Value, val reflect.Value, valMap reflect.Value) error {
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// Special case for BC reasons (covered by tests)
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if dataVal.Len() == 0 {
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val.Set(valMap)
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@ -511,14 +596,29 @@ func (d *Decoder) decodeMap(name string, data interface{}, val reflect.Value) er
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return nil
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}
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}
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return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind())
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}
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func (d *Decoder) decodeMapFromMap(name string, dataVal reflect.Value, val reflect.Value, valMap reflect.Value) error {
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valType := val.Type()
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valKeyType := valType.Key()
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valElemType := valType.Elem()
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// Accumulate errors
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|
errors := make([]string, 0)
|
|
|
|
|
|
|
|
|
|
// If the input data is empty, then we just match what the input data is.
|
|
|
|
|
if dataVal.Len() == 0 {
|
|
|
|
|
if dataVal.IsNil() {
|
|
|
|
|
if !val.IsNil() {
|
|
|
|
|
val.Set(dataVal)
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
// Set to empty allocated value
|
|
|
|
|
val.Set(valMap)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for _, k := range dataVal.MapKeys() {
|
|
|
|
|
fieldName := fmt.Sprintf("%s[%s]", name, k)
|
|
|
|
|
|
|
|
|
@ -551,12 +651,113 @@ func (d *Decoder) decodeMap(name string, data interface{}, val reflect.Value) er
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (d *Decoder) decodeMapFromStruct(name string, dataVal reflect.Value, val reflect.Value, valMap reflect.Value) error {
|
|
|
|
|
typ := dataVal.Type()
|
|
|
|
|
for i := 0; i < typ.NumField(); i++ {
|
|
|
|
|
// Get the StructField first since this is a cheap operation. If the
|
|
|
|
|
// field is unexported, then ignore it.
|
|
|
|
|
f := typ.Field(i)
|
|
|
|
|
if f.PkgPath != "" {
|
|
|
|
|
continue
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Next get the actual value of this field and verify it is assignable
|
|
|
|
|
// to the map value.
|
|
|
|
|
v := dataVal.Field(i)
|
|
|
|
|
if !v.Type().AssignableTo(valMap.Type().Elem()) {
|
|
|
|
|
return fmt.Errorf("cannot assign type '%s' to map value field of type '%s'", v.Type(), valMap.Type().Elem())
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tagValue := f.Tag.Get(d.config.TagName)
|
|
|
|
|
tagParts := strings.Split(tagValue, ",")
|
|
|
|
|
|
|
|
|
|
// Determine the name of the key in the map
|
|
|
|
|
keyName := f.Name
|
|
|
|
|
if tagParts[0] != "" {
|
|
|
|
|
if tagParts[0] == "-" {
|
|
|
|
|
continue
|
|
|
|
|
}
|
|
|
|
|
keyName = tagParts[0]
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// If "squash" is specified in the tag, we squash the field down.
|
|
|
|
|
squash := false
|
|
|
|
|
for _, tag := range tagParts[1:] {
|
|
|
|
|
if tag == "squash" {
|
|
|
|
|
squash = true
|
|
|
|
|
break
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if squash && v.Kind() != reflect.Struct {
|
|
|
|
|
return fmt.Errorf("cannot squash non-struct type '%s'", v.Type())
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
switch v.Kind() {
|
|
|
|
|
// this is an embedded struct, so handle it differently
|
|
|
|
|
case reflect.Struct:
|
|
|
|
|
x := reflect.New(v.Type())
|
|
|
|
|
x.Elem().Set(v)
|
|
|
|
|
|
|
|
|
|
vType := valMap.Type()
|
|
|
|
|
vKeyType := vType.Key()
|
|
|
|
|
vElemType := vType.Elem()
|
|
|
|
|
mType := reflect.MapOf(vKeyType, vElemType)
|
|
|
|
|
vMap := reflect.MakeMap(mType)
|
|
|
|
|
|
|
|
|
|
err := d.decode(keyName, x.Interface(), vMap)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if squash {
|
|
|
|
|
for _, k := range vMap.MapKeys() {
|
|
|
|
|
valMap.SetMapIndex(k, vMap.MapIndex(k))
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
valMap.SetMapIndex(reflect.ValueOf(keyName), vMap)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
valMap.SetMapIndex(reflect.ValueOf(keyName), v)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if val.CanAddr() {
|
|
|
|
|
val.Set(valMap)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) error {
|
|
|
|
|
// If the input data is nil, then we want to just set the output
|
|
|
|
|
// pointer to be nil as well.
|
|
|
|
|
isNil := data == nil
|
|
|
|
|
if !isNil {
|
|
|
|
|
switch v := reflect.Indirect(reflect.ValueOf(data)); v.Kind() {
|
|
|
|
|
case reflect.Chan,
|
|
|
|
|
reflect.Func,
|
|
|
|
|
reflect.Interface,
|
|
|
|
|
reflect.Map,
|
|
|
|
|
reflect.Ptr,
|
|
|
|
|
reflect.Slice:
|
|
|
|
|
isNil = v.IsNil()
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if isNil {
|
|
|
|
|
if !val.IsNil() && val.CanSet() {
|
|
|
|
|
nilValue := reflect.New(val.Type()).Elem()
|
|
|
|
|
val.Set(nilValue)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Create an element of the concrete (non pointer) type and decode
|
|
|
|
|
// into that. Then set the value of the pointer to this type.
|
|
|
|
|
valType := val.Type()
|
|
|
|
|
valElemType := valType.Elem()
|
|
|
|
|
|
|
|
|
|
if val.CanSet() {
|
|
|
|
|
realVal := val
|
|
|
|
|
if realVal.IsNil() || d.config.ZeroFields {
|
|
|
|
|
realVal = reflect.New(valElemType)
|
|
|
|
@ -567,6 +768,11 @@ func (d *Decoder) decodePtr(name string, data interface{}, val reflect.Value) er
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
val.Set(realVal)
|
|
|
|
|
} else {
|
|
|
|
|
if err := d.decode(name, data, reflect.Indirect(val)); err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -592,16 +798,23 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
|
|
|
|
|
|
|
|
|
|
valSlice := val
|
|
|
|
|
if valSlice.IsNil() || d.config.ZeroFields {
|
|
|
|
|
// Check input type
|
|
|
|
|
if dataValKind != reflect.Array && dataValKind != reflect.Slice {
|
|
|
|
|
if d.config.WeaklyTypedInput {
|
|
|
|
|
switch {
|
|
|
|
|
// Slice and array we use the normal logic
|
|
|
|
|
case dataValKind == reflect.Slice, dataValKind == reflect.Array:
|
|
|
|
|
break
|
|
|
|
|
|
|
|
|
|
// Empty maps turn into empty slices
|
|
|
|
|
case dataValKind == reflect.Map:
|
|
|
|
|
if dataVal.Len() == 0 {
|
|
|
|
|
val.Set(reflect.MakeSlice(sliceType, 0, 0))
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
// Create slice of maps of other sizes
|
|
|
|
|
return d.decodeSlice(name, []interface{}{data}, val)
|
|
|
|
|
|
|
|
|
|
case dataValKind == reflect.String && valElemType.Kind() == reflect.Uint8:
|
|
|
|
|
return d.decodeSlice(name, []byte(dataVal.String()), val)
|
|
|
|
|
|
|
|
|
|
// All other types we try to convert to the slice type
|
|
|
|
|
// and "lift" it into it. i.e. a string becomes a string slice.
|
|
|
|
@ -611,11 +824,18 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Check input type
|
|
|
|
|
if dataValKind != reflect.Array && dataValKind != reflect.Slice {
|
|
|
|
|
return fmt.Errorf(
|
|
|
|
|
"'%s': source data must be an array or slice, got %s", name, dataValKind)
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// If the input value is empty, then don't allocate since non-nil != nil
|
|
|
|
|
if dataVal.Len() == 0 {
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Make a new slice to hold our result, same size as the original data.
|
|
|
|
|
valSlice = reflect.MakeSlice(sliceType, dataVal.Len(), dataVal.Len())
|
|
|
|
|
}
|
|
|
|
@ -647,6 +867,73 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (d *Decoder) decodeArray(name string, data interface{}, val reflect.Value) error {
|
|
|
|
|
dataVal := reflect.Indirect(reflect.ValueOf(data))
|
|
|
|
|
dataValKind := dataVal.Kind()
|
|
|
|
|
valType := val.Type()
|
|
|
|
|
valElemType := valType.Elem()
|
|
|
|
|
arrayType := reflect.ArrayOf(valType.Len(), valElemType)
|
|
|
|
|
|
|
|
|
|
valArray := val
|
|
|
|
|
|
|
|
|
|
if valArray.Interface() == reflect.Zero(valArray.Type()).Interface() || d.config.ZeroFields {
|
|
|
|
|
// Check input type
|
|
|
|
|
if dataValKind != reflect.Array && dataValKind != reflect.Slice {
|
|
|
|
|
if d.config.WeaklyTypedInput {
|
|
|
|
|
switch {
|
|
|
|
|
// Empty maps turn into empty arrays
|
|
|
|
|
case dataValKind == reflect.Map:
|
|
|
|
|
if dataVal.Len() == 0 {
|
|
|
|
|
val.Set(reflect.Zero(arrayType))
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// All other types we try to convert to the array type
|
|
|
|
|
// and "lift" it into it. i.e. a string becomes a string array.
|
|
|
|
|
default:
|
|
|
|
|
// Just re-try this function with data as a slice.
|
|
|
|
|
return d.decodeArray(name, []interface{}{data}, val)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return fmt.Errorf(
|
|
|
|
|
"'%s': source data must be an array or slice, got %s", name, dataValKind)
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
if dataVal.Len() > arrayType.Len() {
|
|
|
|
|
return fmt.Errorf(
|
|
|
|
|
"'%s': expected source data to have length less or equal to %d, got %d", name, arrayType.Len(), dataVal.Len())
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Make a new array to hold our result, same size as the original data.
|
|
|
|
|
valArray = reflect.New(arrayType).Elem()
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Accumulate any errors
|
|
|
|
|
errors := make([]string, 0)
|
|
|
|
|
|
|
|
|
|
for i := 0; i < dataVal.Len(); i++ {
|
|
|
|
|
currentData := dataVal.Index(i).Interface()
|
|
|
|
|
currentField := valArray.Index(i)
|
|
|
|
|
|
|
|
|
|
fieldName := fmt.Sprintf("%s[%d]", name, i)
|
|
|
|
|
if err := d.decode(fieldName, currentData, currentField); err != nil {
|
|
|
|
|
errors = appendErrors(errors, err)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Finally, set the value to the array we built up
|
|
|
|
|
val.Set(valArray)
|
|
|
|
|
|
|
|
|
|
// If there were errors, we return those
|
|
|
|
|
if len(errors) > 0 {
|
|
|
|
|
return &Error{errors}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value) error {
|
|
|
|
|
dataVal := reflect.Indirect(reflect.ValueOf(data))
|
|
|
|
|
|
|
|
|
@ -658,10 +945,29 @@ func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dataValKind := dataVal.Kind()
|
|
|
|
|
if dataValKind != reflect.Map {
|
|
|
|
|
return fmt.Errorf("'%s' expected a map, got '%s'", name, dataValKind)
|
|
|
|
|
switch dataValKind {
|
|
|
|
|
case reflect.Map:
|
|
|
|
|
return d.decodeStructFromMap(name, dataVal, val)
|
|
|
|
|
|
|
|
|
|
case reflect.Struct:
|
|
|
|
|
// Not the most efficient way to do this but we can optimize later if
|
|
|
|
|
// we want to. To convert from struct to struct we go to map first
|
|
|
|
|
// as an intermediary.
|
|
|
|
|
m := make(map[string]interface{})
|
|
|
|
|
mval := reflect.Indirect(reflect.ValueOf(&m))
|
|
|
|
|
if err := d.decodeMapFromStruct(name, dataVal, mval, mval); err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
result := d.decodeStructFromMap(name, mval, val)
|
|
|
|
|
return result
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
return fmt.Errorf("'%s' expected a map, got '%s'", name, dataVal.Kind())
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (d *Decoder) decodeStructFromMap(name string, dataVal, val reflect.Value) error {
|
|
|
|
|
dataValType := dataVal.Type()
|
|
|
|
|
if kind := dataValType.Key().Kind(); kind != reflect.String && kind != reflect.Interface {
|
|
|
|
|
return fmt.Errorf(
|
|
|
|
@ -716,7 +1022,7 @@ func (d *Decoder) decodeStruct(name string, data interface{}, val reflect.Value)
|
|
|
|
|
errors = appendErrors(errors,
|
|
|
|
|
fmt.Errorf("%s: unsupported type for squash: %s", fieldType.Name, fieldKind))
|
|
|
|
|
} else {
|
|
|
|
|
structs = append(structs, val.FieldByName(fieldType.Name))
|
|
|
|
|
structs = append(structs, structVal.FieldByName(fieldType.Name))
|
|
|
|
|
}
|
|
|
|
|
continue
|
|
|
|
|
}
|
|
|
|
|