1// RUN: %check_clang_tidy %s modernize-deprecated-ios-base-aliases %t
2
3namespace std {
4class ios_base {
5public:
6 typedef int io_state;
7 typedef int open_mode;
8 typedef int seek_dir;
9
10 typedef int streampos;
11 typedef int streamoff;
12};
13
14template <class CharT>
15class basic_ios : public ios_base {
16};
17} // namespace std
18
19// Test function return values (declaration)
20std::ios_base::io_state f_5();
21// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: 'std::ios_base::io_state' is deprecated; use 'std::ios_base::iostate' instead [modernize-deprecated-ios-base-aliases]
22// CHECK-FIXES: std::ios_base::iostate f_5();
23
24// Test function parameters.
25void f_6(std::ios_base::open_mode);
26// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::open_mode' is deprecated
27// CHECK-FIXES: void f_6(std::ios_base::openmode);
28void f_7(const std::ios_base::seek_dir &);
29// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::seek_dir' is deprecated
30// CHECK-FIXES: void f_7(const std::ios_base::seekdir &);
31
32// Test on record type fields.
33struct A {
34 std::ios_base::io_state field;
35 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
36 // CHECK-FIXES: std::ios_base::iostate field;
37
38 typedef std::ios_base::io_state int_ptr_type;
39 // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 'std::ios_base::io_state' is deprecated
40 // CHECK-FIXES: typedef std::ios_base::iostate int_ptr_type;
41};
42
43struct B : public std::ios_base {
44 io_state a;
45 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
46 // CHECK-FIXES: iostate a;
47};
48
49struct C : public std::basic_ios<char> {
50 io_state a;
51 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
52 // CHECK-FIXES: iostate a;
53};
54
55void f_1() {
56 std::ios_base::io_state a;
57 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
58 // CHECK-FIXES: std::ios_base::iostate a;
59
60 // Check that spaces aren't modified unnecessarily.
61 std :: ios_base :: io_state b;
62 // CHECK-MESSAGES: :[[@LINE-1]]:22: warning: 'std::ios_base::io_state' is deprecated
63 // CHECK-FIXES: std :: ios_base :: iostate b;
64
65 // Test construction from a temporary.
66 std::ios_base::io_state c = std::ios_base::io_state{};
67 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
68 // CHECK-MESSAGES: :[[@LINE-2]]:46: warning: 'std::ios_base::io_state' is deprecated
69 // CHECK-FIXES: std::ios_base::iostate c = std::ios_base::iostate{};
70
71 typedef std::ios_base::io_state alias1;
72 // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 'std::ios_base::io_state' is deprecated
73 // CHECK-FIXES: typedef std::ios_base::iostate alias1;
74 alias1 d(a);
75
76 using alias2 = std::ios_base::io_state;
77 // CHECK-MESSAGES: :[[@LINE-1]]:33: warning: 'std::ios_base::io_state' is deprecated
78 // CHECK-FIXES: using alias2 = std::ios_base::iostate;
79 alias2 e;
80
81 // Test pointers.
82 std::ios_base::io_state *f;
83 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
84 // CHECK-FIXES: std::ios_base::iostate *f;
85
86 // Test 'static' declarations.
87 static std::ios_base::io_state g;
88 // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
89 // CHECK-FIXES: static std::ios_base::iostate g;
90
91 // Test with cv-qualifiers.
92 const std::ios_base::io_state h(0);
93 // CHECK-MESSAGES: :[[@LINE-1]]:24: warning: 'std::ios_base::io_state' is deprecated
94 // CHECK-FIXES: const std::ios_base::iostate h(0);
95 volatile std::ios_base::io_state i;
96 // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
97 // CHECK-FIXES: volatile std::ios_base::iostate i;
98 const volatile std::ios_base::io_state j(0);
99 // CHECK-MESSAGES: :[[@LINE-1]]:33: warning: 'std::ios_base::io_state' is deprecated
100 // CHECK-FIXES: const volatile std::ios_base::iostate j(0);
101
102 // Test auto and initializer-list.
103 auto k = std::ios_base::io_state{};
104 // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
105 // CHECK-FIXES: auto k = std::ios_base::iostate{};
106
107 std::ios_base::io_state l{std::ios_base::io_state()};
108 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
109 // CHECK-MESSAGES: :[[@LINE-2]]:44: warning: 'std::ios_base::io_state' is deprecated
110 // CHECK-FIXES: std::ios_base::iostate l{std::ios_base::iostate()};
111
112 // Test temporaries.
113 std::ios_base::io_state();
114 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
115 // CHECK-FIXES: std::ios_base::iostate();
116
117 // Test inherited type usage
118 std::basic_ios<char>::io_state m;
119 // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
120 // CHECK-FIXES: std::basic_ios<char>::iostate m;
121
122 std::ios_base::streampos n;
123 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::streampos' is deprecated [modernize-deprecated-ios-base-aliases]
124
125 std::ios_base::streamoff o;
126 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::streamoff' is deprecated [modernize-deprecated-ios-base-aliases]
127}
128
129// Test without the nested name specifiers.
130void f_2() {
131 using namespace std;
132
133 ios_base::io_state a;
134 // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: 'std::ios_base::io_state' is deprecated
135 // CHECK-FIXES: ios_base::iostate a;
136}
137
138// Test messing-up with macros.
139void f_4() {
140#define MACRO_1 std::ios_base::io_state
141 // CHECK-MESSAGES: :[[@LINE-1]]:32: warning: 'std::ios_base::io_state' is deprecated
142 MACRO_1 a;
143
144#define MACRO_2 io_state
145 // CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 'std::ios_base::io_state' is deprecated
146 std::ios_base::MACRO_2 b;
147
148#define MACRO_3 std::ios_base
149 MACRO_3::io_state c;
150 // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: 'std::ios_base::io_state' is deprecated
151
152#define MACRO_4(type) type::io_state
153 // CHECK-MESSAGES: :[[@LINE-1]]:29: warning: 'std::ios_base::io_state' is deprecated
154 MACRO_4(std::ios_base) d;
155
156#undef MACRO_1
157#undef MACRO_2
158#undef MACRO_3
159#undef MACRO_4
160}
161
162// Test function return values (definition).
163std::ios_base::io_state f_5()
164// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: 'std::ios_base::io_state' is deprecated
165// CHECK-FIXES: std::ios_base::iostate f_5()
166{
167 // Test constructor.
168 return std::ios_base::io_state(0);
169 // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
170 // CHECK-FIXES: return std::ios_base::iostate(0);
171}
172
173// Test that other aliases with same name aren't replaced
174struct my_ios_base {
175 typedef int io_state;
176};
177
178namespace ns_1 {
179struct my_ios_base2 {
180 typedef int io_state;
181};
182} // namespace ns_1
183
184void f_8() {
185 my_ios_base::io_state a;
186
187 ns_1::my_ios_base2::io_state b;
188}
189
190// Test templates
191template <typename X>
192void f_9() {
193 typename std::basic_ios<X>::io_state p;
194 // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::io_state' is deprecated
195 typename std::ios_base::io_state q;
196 // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
197 // CHECK-FIXES: typename std::ios_base::iostate q;
198}
199
200template <typename T>
201void f_10(T arg) {
202 T x(arg);
203}
204
205template <typename T>
206void f_11() {
207 typename T::io_state x{};
208 // CHECK-MESSAGES: :[[@LINE-1]]:15: warning: 'std::ios_base::io_state' is deprecated
209}
210
211template <typename T>
212struct D : std::ios_base {
213 io_state a;
214 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
215 // CHECK-FIXES: iostate a;
216
217 typename std::basic_ios<T>::io_state b;
218 // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::io_state' is deprecated
219};
220
221template <typename T>
222struct E {
223 T t;
224};
225
226void f_12() {
227 f_9<char>();
228
229 f_10<std::ios_base::io_state>(arg: 0);
230 // CHECK-MESSAGES: :[[@LINE-1]]:23: warning: 'std::ios_base::io_state' is deprecated
231 // CHECK-FIXES: f_10<std::ios_base::iostate>(0);
232
233 f_11<std::ios_base>();
234 D<char> d;
235
236 E<std::ios_base::io_state> e;
237 // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: 'std::ios_base::io_state' is deprecated
238 // CHECK-FIXES: E<std::ios_base::iostate> e;
239}
240

source code of clang-tools-extra/test/clang-tidy/checkers/modernize/deprecated-ios-base-aliases.cpp