Function structCodecOf

proto/struct.go:52–153

(t reflect.Type, seen map[reflect.Type]*codec)

}

func structCodecOf(t reflect.Type, seen map[reflect.Type]*codec) *codec {
	c := &codec{wire: varlen}
	seen[t] = c

	numField := t.NumField()
	number := fieldNumber(1)
	fields := make([]structField, 0, numField)

	for i := range numField {
		f := t.Field(i)

		if f.PkgPath != "" {
			continue // unexported
		}

		field := structField{
			number: uint16(number),
			offset: uint32(f.Offset),
		}

		if tag, ok := f.Tag.Lookup("protobuf"); ok {
			t, err := parseStructTag(tag)
			if err == nil {
				field.number = uint16(t.fieldNumber)
				if t.repeated {
					field.flags |= repeated
				}
				if t.zigzag {
					field.flags |= zigzag
				}
				switch t.wireType {
				case Fixed32:
					switch baseKindOf(f.Type) {
					case reflect.Uint32:
						field.codec = &fixed32Codec
					case reflect.Float32:
						field.codec = &float32Codec
					}
				case Fixed64:
					switch baseKindOf(f.Type) {
					case reflect.Uint64:
						field.codec = &fixed64Codec
					case reflect.Float64:
						field.codec = &float64Codec
					}
				}
			}
		}

		if field.codec == nil {
			switch baseKindOf(f.Type) {
			case reflect.Struct:
				field.flags |= embedded
				field.codec = codecOf(f.Type, seen)

			case reflect.Slice:
				elem := f.Type.Elem()