Method object

jsonxt/decode.go:606–824

object consumes an object from d.data[d.off-1:], decoding into v. The first byte ('{') of the object has been read already.

(v reflect.Value)

// object consumes an object from d.data[d.off-1:], decoding into v.
// The first byte ('{') of the object has been read already.
func (d *decodeState) object(v reflect.Value) error {
	// Check for unmarshaler.
	u, ut, pv := indirect(v, false)
	if u != nil {
		start := d.readIndex()
		d.skip()
		return u.UnmarshalJSON(d.data[start:d.off])
	}
	if ut != nil {
		d.saveError(&UnmarshalTypeError{Value: "object", Type: v.Type(), Offset: int64(d.off)})
		d.skip()
		return nil
	}
	v = pv
	t := v.Type()

	// Decoding into nil interface? Switch to non-reflect code.
	if v.Kind() == reflect.Interface && v.NumMethod() == 0 {
		oi := d.objectInterface()
		v.Set(reflect.ValueOf(oi))
		return nil
	}

	var fields []field

	// Check type of target:
	//   struct or
	//   map[T1]T2 where T1 is string, an integer type,
	//             or an encoding.TextUnmarshaler
	switch v.Kind() {
	case reflect.Map:
		// Map key must either have string kind, have an integer kind,
		// or be an encoding.TextUnmarshaler.
		switch t.Key().Kind() {
		case reflect.String,
			reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
			reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
		default:
			if !reflect.PointerTo(t.Key()).Implements(textUnmarshalerType) {
				d.saveError(&UnmarshalTypeError{Value: "object", Type: t, Offset: int64(d.off)})
				d.skip()
				return nil
			}
		}
		if v.IsNil() {
			v.Set(reflect.MakeMap(t))
		}
	case reflect.Struct:
		fields = cachedTypeFields(t)
		// ok
	default:
		d.saveError(&UnmarshalTypeError{Value: "object", Type: t, Offset: int64(d.off)})
		d.skip()
		return nil
	}

	var mapElem reflect.Value
	originalErrorContext := d.errorContext