func getArgType()

in protocol/dubbo/impl/hessian.go [422:536]
105 lines of code
45 McCabe index (conditional complexity)

func getArgType(v any) string {
	if v == nil {
		return "V"
	}

	switch v := v.(type) {
	// Serialized tags for base types
	case nil:
		return "V"
	case bool:
		return "Z"
	case []bool:
		return "[Z"
	case byte:
		return "B"
	case []byte:
		return "[B"
	case int8:
		return "B"
	case []int8:
		return "[B"
	case int16:
		return "S"
	case []int16:
		return "[S"
	case uint16: // Equivalent to Char of Java
		return "C"
	case []uint16:
		return "[C"
	// case rune:
	//	return "C"
	case int:
		return "J"
	case []int:
		return "[J"
	case int32:
		return "I"
	case []int32:
		return "[I"
	case int64:
		return "J"
	case []int64:
		return "[J"
	case time.Time:
		return "java.util.Date"
	case []time.Time:
		return "[Ljava.util.Date"
	case float32:
		return "F"
	case []float32:
		return "[F"
	case float64:
		return "D"
	case []float64:
		return "[D"
	case string:
		return "java.lang.String"
	case []string:
		return "[Ljava.lang.String;"
	case []hessian.Object:
		return "[Ljava.lang.Object;"
	case map[any]any:
		// return  "java.util.HashMap"
		return "java.util.Map"
	case hessian.POJOEnum:
		return v.(hessian.POJOEnum).JavaClassName()
	case *int8:
		return "java.lang.Byte"
	case *int16:
		return "java.lang.Short"
	case *uint16:
		return "java.lang.Character"
	case *int:
		return "java.lang.Long"
	case *int32:
		return "java.lang.Integer"
	case *int64:
		return "java.lang.Long"
	case *float32:
		return "java.lang.Float"
	case *float64:
		return "java.lang.Double"
	//  Serialized tags for complex types
	default:
		t := reflect.TypeOf(v)
		if reflect.Ptr == t.Kind() {
			t = reflect.TypeOf(reflect.ValueOf(v).Elem())
		}
		switch t.Kind() {
		case reflect.Struct:
			p, ok := v.(hessian.Param)
			if ok {
				return p.JavaParamName()
			}
			v, ok := v.(hessian.POJO)
			if ok {
				return v.JavaClassName()
			}
			return "java.lang.Object"
		case reflect.Slice, reflect.Array:
			if t.Elem().Kind() == reflect.Struct {
				return "[Ljava.lang.Object;"
			}
			// return "java.util.ArrayList"
			return "java.util.List"
		case reflect.Map: // Enter here, map may be map[string]int
			return "java.util.Map"
		default:
			return ""
		}
	}

	// unreachable
	// return "java.lang.RuntimeException"
}