blob: 2958addffc151de30339eac744422f0affda0b0b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
//===--- funcptrs.cc - test input file for iwyu ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Tests that function pointers make the right claims for involved types.
// Function pointer expressions come in three flavors:
//
// 1) Assignments: int (*fptr)(int) = function;
// 2) Calls: FunctionThatTakesFptr(function);
// 3) Naked expressions: &function;
//
// A 'function' can be a free function, a static member function, a member
// function, or any template instantiation of the above.
#include "tests/cxx/funcptrs-d1.h"
// Functions to drive call-syntax.
// IWYU: Class needs a declaration
// IWYU: Enum is...*funcptrs-i1.h
void FunctionThatTakesFptr(Enum (*fptr)(Class*));
// IWYU: Class needs a declaration
void FunctionThatTakesFptr(int (*fptr)(Class*));
void FunctionThatTakesFptr(int (*fptr)());
// IWYU: Class needs a declaration
void FunctionThatTakesMptr(int (Class::*mptr)() const);
// IWYU: ClassTemplate needs a declaration
// IWYU: Class needs a declaration
void FunctionThatTakesMptr(int (ClassTemplate<Class>::*mptr)() const);
// Test cases below.
// Note that we test primarily the diagnostics from IWYU for the individual
// constructs, not which header is chosen -- all relevant types are in
// funcptrs-i1.h anyway.
//
// Each test creates function pointers to a plain function and a template
// instantiation, and for classes similarly for instance member functions.
void FreeFunctions() {
// Assignment of function pointer to function and template instantiation.
// IWYU: Class needs a declaration
// IWYU: Enum is...*funcptrs-i1.h
// IWYU: Function is...*funcptrs-i1.h
Enum (*fptr)(Class*) = &Function;
// IWYU: Class needs a declaration
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: FunctionTemplate is...*funcptrs-i1.h
int (*template_fptr)(Class*) = &FunctionTemplate<Retval>;
// Call with function pointer to function and template instantiation.
// IWYU: Function is...*funcptrs-i1.h
FunctionThatTakesFptr(Function);
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: FunctionTemplate is...*funcptrs-i1.h
FunctionThatTakesFptr(FunctionTemplate<Retval>);
// Naked function pointer expressions
// IWYU: Function is...*funcptrs-i1.h
&Function;
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: FunctionTemplate is...*funcptrs-i1.h
&FunctionTemplate<Retval>;
}
void ClassMembers() {
// IWYU: Class is...*funcptrs-i1.h
int (*static_method_ptr)() = &Class::StaticMemberFunction;
// IWYU: Class is...*funcptrs-i1.h
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
int (*static_template_method_ptr)() = &Class::StaticMemberTemplate<Retval>;
// IWYU: Class is...*funcptrs-i1.h
int (Class::*method_ptr)() const = &Class::MemberFunction;
// IWYU: Class is...*funcptrs-i1.h
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
int (Class::*template_method_ptr)() const = &Class::MemberTemplate<Retval>;
// Call with pointers to static member function and template instantiation.
// IWYU: Class is...*funcptrs-i1.h
FunctionThatTakesFptr(Class::StaticMemberFunction);
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: Class is...*funcptrs-i1.h
FunctionThatTakesFptr(Class::StaticMemberTemplate<Retval>);
// Call with pointers to instance member function and template instantiation.
// IWYU: Class is...*funcptrs-i1.h
FunctionThatTakesMptr(&Class::MemberFunction);
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: Class is...*funcptrs-i1.h
FunctionThatTakesMptr(&Class::MemberTemplate<Retval>);
// Naked function pointer expressions
// IWYU: Class is...*funcptrs-i1.h
&Class::StaticMemberFunction;
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: Class is...*funcptrs-i1.h
&Class::StaticMemberTemplate<Retval>;
// IWYU: Class is...*funcptrs-i1.h
&Class::MemberFunction;
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: Class is...*funcptrs-i1.h
&Class::MemberTemplate<Retval>;
}
void ClassTemplateMembers() {
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
int (*static_method_ptr)() = &ClassTemplate<Class>::StaticMemberFunction;
int (*static_template_method_ptr)() =
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
&ClassTemplate<Class>::StaticMemberTemplate<Retval>;
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
int (ClassTemplate<Class>::*method_ptr)() const =
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
&ClassTemplate<Class>::MemberFunction;
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
int (ClassTemplate<Class>::*template_method_ptr)() const =
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
&ClassTemplate<Class>::MemberTemplate<Retval>;
// Call with pointers to static member function and template instantiation.
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
FunctionThatTakesFptr(ClassTemplate<Class>::StaticMemberFunction);
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
FunctionThatTakesFptr(ClassTemplate<Class>::StaticMemberTemplate<Retval>);
// Call with pointers to instance member function and template instantiation.
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
FunctionThatTakesMptr(&ClassTemplate<Class>::MemberFunction);
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
FunctionThatTakesMptr(&ClassTemplate<Class>::MemberTemplate<Retval>);
// Naked class template member function pointer expressions
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
&ClassTemplate<Class>::StaticMemberFunction;
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
&ClassTemplate<Class>::StaticMemberTemplate<Retval>;
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
&ClassTemplate<Class>::MemberFunction;
// IWYU: Retval needs a declaration
// IWYU: Retval is...*funcptrs-i1.h
// IWYU: ClassTemplate is...*funcptrs-i1.h
// IWYU: Class needs a declaration
&ClassTemplate<Class>::MemberTemplate<Retval>;
}
/**** IWYU_SUMMARY
tests/cxx/funcptrs.cc should add these lines:
#include "tests/cxx/funcptrs-i1.h"
tests/cxx/funcptrs.cc should remove these lines:
- #include "tests/cxx/funcptrs-d1.h" // lines XX-XX
The full include-list for tests/cxx/funcptrs.cc:
#include "tests/cxx/funcptrs-i1.h" // for Class, ClassTemplate, Enum, Function, FunctionTemplate, Retval
***** IWYU_SUMMARY */
|
