1 | // RUN: %clang_cc1 -Wparentheses -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -Wparentheses -fsyntax-only -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s |
3 | |
4 | bool someConditionFunc(); |
5 | |
6 | void conditional_op(int x, int y, bool b) { |
7 | (void)(x + someConditionFunc() ? 1 : 2); // expected-warning {{operator '?:' has lower precedence than '+'}} \ |
8 | // expected-note {{place parentheses around the '+' expression to silence this warning}} \ |
9 | // expected-note {{place parentheses around the '?:' expression to evaluate it first}} |
10 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
11 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:33-[[@LINE-4]]:33}:")" |
12 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:14-[[@LINE-5]]:14}:"(" |
13 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:41-[[@LINE-6]]:41}:")" |
14 | |
15 | (void)(x - b ? 1 : 2); // expected-warning {{operator '?:' has lower precedence than '-'}} \ |
16 | // expected-note {{place parentheses around the '-' expression to silence this warning}} \ |
17 | // expected-note {{place parentheses around the '?:' expression to evaluate it first}} |
18 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
19 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:15-[[@LINE-4]]:15}:")" |
20 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:14-[[@LINE-5]]:14}:"(" |
21 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:23-[[@LINE-6]]:23}:")" |
22 | |
23 | (void)(x * (x == y) ? 1 : 2); // expected-warning {{operator '?:' has lower precedence than '*'}} \ |
24 | // expected-note {{place parentheses around the '*' expression to silence this warning}} \ |
25 | // expected-note {{place parentheses around the '?:' expression to evaluate it first}} |
26 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
27 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:22}:")" |
28 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:14-[[@LINE-5]]:14}:"(" |
29 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:30-[[@LINE-6]]:30}:")" |
30 | } |
31 | |
32 | class Stream { |
33 | public: |
34 | operator int(); |
35 | Stream &operator<<(int); |
36 | Stream &operator<<(const char*); |
37 | Stream &operator>>(int); |
38 | Stream &operator>>(const char*); |
39 | }; |
40 | |
41 | void f(Stream& s, bool b) { |
42 | (void)(s << b ? "foo" : "bar"); // expected-warning {{operator '?:' has lower precedence than '<<'}} \ |
43 | // expected-note {{place parentheses around the '<<' expression to silence this warning}} \ |
44 | // expected-note {{place parentheses around the '?:' expression to evaluate it first}} |
45 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
46 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:16-[[@LINE-4]]:16}:")" |
47 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:15-[[@LINE-5]]:15}:"(" |
48 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:32-[[@LINE-6]]:32}:")" |
49 | |
50 | (void)(s << 5 == 1); // expected-warning {{overloaded operator << has higher precedence than comparison operator}} \ |
51 | // expected-note {{place parentheses around the '<<' expression to silence this warning}} \ |
52 | // expected-note {{place parentheses around comparison expression to evaluate it first}} |
53 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
54 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:16-[[@LINE-4]]:16}:")" |
55 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:15-[[@LINE-5]]:15}:"(" |
56 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:21-[[@LINE-6]]:21}:")" |
57 | |
58 | (void)(s >> 5 == 1); // expected-warning {{overloaded operator >> has higher precedence than comparison operator}} \ |
59 | // expected-note {{place parentheses around the '>>' expression to silence this warning}} \ |
60 | // expected-note {{place parentheses around comparison expression to evaluate it first}} |
61 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
62 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:16-[[@LINE-4]]:16}:")" |
63 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:15-[[@LINE-5]]:15}:"(" |
64 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:21-[[@LINE-6]]:21}:")" |
65 | } |
66 | |
67 | struct S { |
68 | operator int() { return 42; } |
69 | friend S operator+(const S &lhs, bool) { return S(); } |
70 | }; |
71 | |
72 | void test(S *s, bool (S::*m_ptr)()) { |
73 | (void)(*s + true ? "foo" : "bar"); // expected-warning {{operator '?:' has lower precedence than '+'}} \ |
74 | // expected-note {{place parentheses around the '+' expression to silence this warning}} \ |
75 | // expected-note {{place parentheses around the '?:' expression to evaluate it first}} |
76 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:10}:"(" |
77 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:19-[[@LINE-4]]:19}:")" |
78 | // CHECK: fix-it:"{{.*}}":{[[@LINE-5]]:15-[[@LINE-5]]:15}:"(" |
79 | // CHECK: fix-it:"{{.*}}":{[[@LINE-6]]:35-[[@LINE-6]]:35}:")" |
80 | |
81 | (void)((*s + true) ? "foo" : "bar"); // No warning. |
82 | |
83 | // Don't crash on unusual member call expressions. |
84 | (void)((s->*m_ptr)() ? "foo" : "bar"); |
85 | } |
86 | |
87 | void test(int a, int b, int c) { |
88 | (void)(a >> b + c); // expected-warning {{operator '>>' has lower precedence than '+'; '+' will be evaluated first}} \ |
89 | expected-note {{place parentheses around the '+' expression to silence this warning}} |
90 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:15-[[@LINE-2]]:15}:"(" |
91 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:20-[[@LINE-3]]:20}:")" |
92 | |
93 | (void)(a - b << c); // expected-warning {{operator '<<' has lower precedence than '-'; '-' will be evaluated first}} \ |
94 | expected-note {{place parentheses around the '-' expression to silence this warning}} |
95 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:10-[[@LINE-2]]:10}:"(" |
96 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:15-[[@LINE-3]]:15}:")" |
97 | |
98 | Stream() << b + c; |
99 | Stream() >> b + c; // expected-warning {{operator '>>' has lower precedence than '+'; '+' will be evaluated first}} \ |
100 | expected-note {{place parentheses around the '+' expression to silence this warning}} |
101 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:15-[[@LINE-2]]:15}:"(" |
102 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:20-[[@LINE-3]]:20}:")" |
103 | } |
104 | |
105 | namespace PR15628 { |
106 | struct BlockInputIter { |
107 | void* operator++(int); |
108 | void* operator--(int); |
109 | }; |
110 | |
111 | void test(BlockInputIter i) { |
112 | (void)(i++ ? true : false); // no-warning |
113 | (void)(i-- ? true : false); // no-warning |
114 | } |
115 | } |
116 | |
117 | namespace PR20735 { |
118 | struct X { |
119 | static int state; |
120 | static int get(); |
121 | int get_num(); |
122 | int num; |
123 | }; |
124 | namespace ns { |
125 | int num = 0; |
126 | int get(); |
127 | } |
128 | void test(X x) { |
129 | if (5 & x.get_num() != 0) {} |
130 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
131 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
132 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
133 | // CHECK: place parentheses around the '!=' expression to silence this warning |
134 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
135 | // fix-it:"{{.*}}":{[[@LINE-6]]:29-[[@LINE-6]]:29}:")" |
136 | // CHECK: place parentheses around the & expression to evaluate it first |
137 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
138 | // fix-it:"{{.*}}":{[[@LINE-9]]:24-[[@LINE-9]]:24}:")" |
139 | |
140 | if (5 & x.num != 0) {} |
141 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
142 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
143 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
144 | // CHECK: place parentheses around the '!=' expression to silence this warning |
145 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
146 | // fix-it:"{{.*}}":{[[@LINE-6]]:23-[[@LINE-6]]:23}:")" |
147 | // CHECK: place parentheses around the & expression to evaluate it first |
148 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
149 | // fix-it:"{{.*}}":{[[@LINE-9]]:18-[[@LINE-9]]:18}:")" |
150 | |
151 | if (5 & x.state != 0) {} |
152 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
153 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
154 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
155 | // CHECK: place parentheses around the '!=' expression to silence this warning |
156 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
157 | // fix-it:"{{.*}}":{[[@LINE-6]]:25-[[@LINE-6]]:25}:")" |
158 | // CHECK: place parentheses around the & expression to evaluate it first |
159 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
160 | // fix-it:"{{.*}}":{[[@LINE-9]]:20-[[@LINE-9]]:20}:")" |
161 | |
162 | if (5 & x.get() != 0) {} |
163 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
164 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
165 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
166 | // CHECK: place parentheses around the '!=' expression to silence this warning |
167 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
168 | // fix-it:"{{.*}}":{[[@LINE-6]]:25-[[@LINE-6]]:25}:")" |
169 | // CHECK: place parentheses around the & expression to evaluate it first |
170 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
171 | // fix-it:"{{.*}}":{[[@LINE-9]]:20-[[@LINE-9]]:20}:")" |
172 | |
173 | if (5 & X::state != 0) {} |
174 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
175 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
176 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
177 | // CHECK: place parentheses around the '!=' expression to silence this warning |
178 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
179 | // fix-it:"{{.*}}":{[[@LINE-6]]:26-[[@LINE-6]]:26}:")" |
180 | // CHECK: place parentheses around the & expression to evaluate it first |
181 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
182 | // fix-it:"{{.*}}":{[[@LINE-9]]:21-[[@LINE-9]]:21}:")" |
183 | |
184 | if (5 & X::get() != 0) {} |
185 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
186 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
187 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
188 | // CHECK: place parentheses around the '!=' expression to silence this warning |
189 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
190 | // fix-it:"{{.*}}":{[[@LINE-6]]:26-[[@LINE-6]]:26}:")" |
191 | // CHECK: place parentheses around the & expression to evaluate it first |
192 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
193 | // fix-it:"{{.*}}":{[[@LINE-9]]:21-[[@LINE-9]]:21}:")" |
194 | |
195 | if (5 & ns::get() != 0) {} |
196 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
197 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
198 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
199 | // CHECK: place parentheses around the '!=' expression to silence this warning |
200 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
201 | // fix-it:"{{.*}}":{[[@LINE-6]]:27-[[@LINE-6]]:27}:")" |
202 | // CHECK: place parentheses around the & expression to evaluate it first |
203 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
204 | // fix-it:"{{.*}}":{[[@LINE-9]]:22-[[@LINE-9]]:22}:")" |
205 | |
206 | if (5 & ns::num != 0) {} |
207 | // expected-warning@-1 {{& has lower precedence than !=; != will be evaluated first}} |
208 | // expected-note@-2 {{place parentheses around the '!=' expression to silence this warning}} |
209 | // expected-note@-3 {{place parentheses around the & expression to evaluate it first}} |
210 | // CHECK: place parentheses around the '!=' expression to silence this warning |
211 | // fix-it:"{{.*}}":{[[@LINE-5]]:13-[[@LINE-5]]:13}:"(" |
212 | // fix-it:"{{.*}}":{[[@LINE-6]]:25-[[@LINE-6]]:25}:")" |
213 | // CHECK: place parentheses around the & expression to evaluate it first |
214 | // fix-it:"{{.*}}":{[[@LINE-8]]:9-[[@LINE-8]]:9}:"(" |
215 | // fix-it:"{{.*}}":{[[@LINE-9]]:20-[[@LINE-9]]:20}:")" |
216 | } |
217 | } |
218 | |