1 /*
2 * Copyright (c) Facebook, Inc. and its affiliates.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <thrift/test/reflection/gen-cpp2/reflection_for_each_field.h>
18 #include <thrift/test/reflection/gen-cpp2/reflection_visit_by_thrift_field_metadata.h> // @manual
19
20 #include <folly/Overload.h>
21 #include <folly/portability/GTest.h>
22
23 #include <typeindex>
24
25 namespace test_cpp2 {
26 namespace cpp_reflection {
27 namespace {
28 template <class T>
idToThriftField(int32_t id)29 auto idToThriftField(int32_t id) {
30 apache::thrift::metadata::ThriftField field;
31 apache::thrift::for_each_field(T{}, [&](auto&& meta, auto&&) {
32 if (meta.id_ref() == id) {
33 field = meta;
34 }
35 });
36 return field;
37 }
38
TEST(struct1,modify_field)39 TEST(struct1, modify_field) {
40 struct1 s;
41 s.field4_ref().emplace().set_us("foo");
42 s.field5_ref().emplace().set_us_2("bar");
43 auto run = folly::overload(
44 [](union1& ref) {
45 EXPECT_EQ(ref.get_us(), "foo");
46 ref.set_ui(20);
47 },
48 [](auto&) { EXPECT_TRUE(false) << "type mismatch"; });
49 auto meta = idToThriftField<struct1>(16);
50 apache::thrift::visit_by_thrift_field_metadata(s, meta, [run](auto&& ref) {
51 EXPECT_TRUE(ref.has_value());
52 run(*ref);
53 });
54 EXPECT_EQ(s.field4_ref()->ui_ref(), 20);
55 EXPECT_EQ(s.field5_ref()->us_2_ref(), "bar");
56
57 meta.id_ref() = 123456;
58 EXPECT_THROW(
59 apache::thrift::visit_by_thrift_field_metadata(s, meta, [](auto&&...) {}),
60 apache::thrift::InvalidThriftId);
61 }
62 } // namespace
63 } // namespace cpp_reflection
64 } // namespace test_cpp2
65