1// RUN: %check_clang_tidy %s bugprone-easily-swappable-parameters %t \
2// RUN: -config='{CheckOptions: { \
3// RUN: bugprone-easily-swappable-parameters.MinimumLength: 2, \
4// RUN: bugprone-easily-swappable-parameters.IgnoredParameterNames: "", \
5// RUN: bugprone-easily-swappable-parameters.IgnoredParameterTypeSuffixes: "", \
6// RUN: bugprone-easily-swappable-parameters.QualifiersMix: 1, \
7// RUN: bugprone-easily-swappable-parameters.ModelImplicitConversions: 0, \
8// RUN: bugprone-easily-swappable-parameters.SuppressParametersUsedTogether: 0, \
9// RUN: bugprone-easily-swappable-parameters.NamePrefixSuffixSilenceDissimilarityTreshold: 0 \
10// RUN: }}' --
11
12typedef int MyInt1;
13typedef int MyInt2;
14using CInt = const int;
15using CMyInt1 = const MyInt1;
16using CMyInt2 = const MyInt2;
17
18void qualified1(int I, const int CI) {}
19// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 2 adjacent parameters of 'qualified1' of similar type are easily swapped by mistake [bugprone-easily-swappable-parameters]
20// CHECK-MESSAGES: :[[@LINE-2]]:21: note: the first parameter in the range is 'I'
21// CHECK-MESSAGES: :[[@LINE-3]]:34: note: the last parameter in the range is 'CI'
22// CHECK-MESSAGES: :[[@LINE-4]]:24: note: 'int' and 'const int' parameters accept and bind the same kind of values
23
24void qualified2(int I, volatile int VI) {}
25// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 2 adjacent parameters of 'qualified2' of similar type are
26// CHECK-MESSAGES: :[[@LINE-2]]:21: note: the first parameter in the range is 'I'
27// CHECK-MESSAGES: :[[@LINE-3]]:37: note: the last parameter in the range is 'VI'
28// CHECK-MESSAGES: :[[@LINE-4]]:24: note: 'int' and 'volatile int' parameters accept and bind the same kind of values
29
30void qualified3(int I, const volatile int CVI) {}
31// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 2 adjacent parameters of 'qualified3' of similar type are
32// CHECK-MESSAGES: :[[@LINE-2]]:21: note: the first parameter in the range is 'I'
33// CHECK-MESSAGES: :[[@LINE-3]]:43: note: the last parameter in the range is 'CVI'
34// CHECK-MESSAGES: :[[@LINE-4]]:24: note: 'int' and 'const volatile int' parameters accept and bind the same kind of values
35
36void qualified4(int *IP, const int *CIP) {}
37// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 2 adjacent parameters of 'qualified4' of similar type are
38// CHECK-MESSAGES: :[[@LINE-2]]:22: note: the first parameter in the range is 'IP'
39// CHECK-MESSAGES: :[[@LINE-3]]:37: note: the last parameter in the range is 'CIP'
40// CHECK-MESSAGES: :[[@LINE-4]]:26: note: 'int *' and 'const int *' parameters accept and bind the same kind of values
41
42void qualified5(const int CI, const long CL) {} // NO-WARN: Not the same type
43
44void qualifiedPtr1(int *IP, int *const IPC) {}
45// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: 2 adjacent parameters of 'qualifiedPtr1' of similar type are
46// CHECK-MESSAGES: :[[@LINE-2]]:25: note: the first parameter in the range is 'IP'
47// CHECK-MESSAGES: :[[@LINE-3]]:40: note: the last parameter in the range is 'IPC'
48// CHECK-MESSAGES: :[[@LINE-4]]:29: note: 'int *' and 'int *const' parameters accept and bind the same kind of values
49
50void qualifiedPtr2(int *IP, int *volatile IPV) {}
51// CHECK-MESSAGES: :[[@LINE-1]]:20: warning: 2 adjacent parameters of 'qualifiedPtr2' of similar type are
52// CHECK-MESSAGES: :[[@LINE-2]]:25: note: the first parameter in the range is 'IP'
53// CHECK-MESSAGES: :[[@LINE-3]]:43: note: the last parameter in the range is 'IPV'
54// CHECK-MESSAGES: :[[@LINE-4]]:29: note: 'int *' and 'int *volatile' parameters accept and bind the same kind of values
55
56void qualifiedTypeAndQualifiedPtr1(const int *CIP, int *const volatile IPCV) {}
57// CHECK-MESSAGES: :[[@LINE-1]]:36: warning: 2 adjacent parameters of 'qualifiedTypeAndQualifiedPtr1' of similar type are
58// CHECK-MESSAGES: :[[@LINE-2]]:47: note: the first parameter in the range is 'CIP'
59// CHECK-MESSAGES: :[[@LINE-3]]:72: note: the last parameter in the range is 'IPCV'
60// CHECK-MESSAGES: :[[@LINE-4]]:52: note: 'const int *' and 'int *const volatile' parameters accept and bind the same kind of values
61
62void qualifiedThroughTypedef1(int I, CInt CI) {}
63// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 2 adjacent parameters of 'qualifiedThroughTypedef1' of similar type are
64// CHECK-MESSAGES: :[[@LINE-2]]:35: note: the first parameter in the range is 'I'
65// CHECK-MESSAGES: :[[@LINE-3]]:43: note: the last parameter in the range is 'CI'
66// CHECK-MESSAGES: :[[@LINE-4]]:31: note: after resolving type aliases, 'int' and 'CInt' share a common type
67// CHECK-MESSAGES: :[[@LINE-5]]:38: note: 'int' and 'CInt' parameters accept and bind the same kind of values
68
69void qualifiedThroughTypedef2(CInt CI1, const int CI2) {}
70// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 2 adjacent parameters of 'qualifiedThroughTypedef2' of similar type are
71// CHECK-MESSAGES: :[[@LINE-2]]:36: note: the first parameter in the range is 'CI1'
72// CHECK-MESSAGES: :[[@LINE-3]]:51: note: the last parameter in the range is 'CI2'
73// CHECK-MESSAGES: :[[@LINE-4]]:31: note: after resolving type aliases, 'CInt' and 'const int' are the same
74
75void qualifiedThroughTypedef3(CInt CI1, const MyInt1 CI2, const int CI3) {}
76// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 3 adjacent parameters of 'qualifiedThroughTypedef3' of similar type are
77// CHECK-MESSAGES: :[[@LINE-2]]:36: note: the first parameter in the range is 'CI1'
78// CHECK-MESSAGES: :[[@LINE-3]]:69: note: the last parameter in the range is 'CI3'
79// CHECK-MESSAGES: :[[@LINE-4]]:31: note: after resolving type aliases, the common type of 'CInt' and 'const MyInt1' is 'const int'
80// CHECK-MESSAGES: :[[@LINE-5]]:31: note: after resolving type aliases, 'CInt' and 'const int' are the same
81// CHECK-MESSAGES: :[[@LINE-6]]:41: note: after resolving type aliases, 'const MyInt1' and 'const int' are the same
82
83void qualifiedThroughTypedef4(CInt CI1, const MyInt1 CI2, const MyInt2 CI3) {}
84// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 3 adjacent parameters of 'qualifiedThroughTypedef4' of similar type are
85// CHECK-MESSAGES: :[[@LINE-2]]:36: note: the first parameter in the range is 'CI1'
86// CHECK-MESSAGES: :[[@LINE-3]]:72: note: the last parameter in the range is 'CI3'
87// CHECK-MESSAGES: :[[@LINE-4]]:31: note: after resolving type aliases, the common type of 'CInt' and 'const MyInt1' is 'const int'
88// CHECK-MESSAGES: :[[@LINE-5]]:31: note: after resolving type aliases, the common type of 'CInt' and 'const MyInt2' is 'const int'
89// CHECK-MESSAGES: :[[@LINE-6]]:41: note: after resolving type aliases, the common type of 'const MyInt1' and 'const MyInt2' is 'const int'
90
91void qualifiedThroughTypedef5(CMyInt1 CMI1, CMyInt2 CMI2) {}
92// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 2 adjacent parameters of 'qualifiedThroughTypedef5' of similar type are
93// CHECK-MESSAGES: :[[@LINE-2]]:39: note: the first parameter in the range is 'CMI1'
94// CHECK-MESSAGES: :[[@LINE-3]]:53: note: the last parameter in the range is 'CMI2'
95// CHECK-MESSAGES: :[[@LINE-4]]:31: note: after resolving type aliases, the common type of 'CMyInt1' and 'CMyInt2' is 'const int'
96
97void qualifiedThroughTypedef6(CMyInt1 CMI1, int I) {}
98// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 2 adjacent parameters of 'qualifiedThroughTypedef6' of similar type are
99// CHECK-MESSAGES: :[[@LINE-2]]:39: note: the first parameter in the range is 'CMI1'
100// CHECK-MESSAGES: :[[@LINE-3]]:49: note: the last parameter in the range is 'I'
101// CHECK-MESSAGES: :[[@LINE-4]]:31: note: after resolving type aliases, 'CMyInt1' and 'int' share a common type
102// CHECK-MESSAGES: :[[@LINE-5]]:45: note: 'CMyInt1' and 'int' parameters accept and bind the same kind of values
103
104void referenceToTypedef1(CInt &CIR, int I) {}
105// CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 2 adjacent parameters of 'referenceToTypedef1' of similar type are
106// CHECK-MESSAGES: :[[@LINE-2]]:32: note: the first parameter in the range is 'CIR'
107// CHECK-MESSAGES: :[[@LINE-3]]:41: note: the last parameter in the range is 'I'
108// CHECK-MESSAGES: :[[@LINE-4]]:37: note: 'CInt &' and 'int' parameters accept and bind the same kind of values
109
110template <typename T>
111void copy(const T *Dest, T *Source) {}
112// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: 2 adjacent parameters of 'copy' of similar type are
113// CHECK-MESSAGES: :[[@LINE-2]]:20: note: the first parameter in the range is 'Dest'
114// CHECK-MESSAGES: :[[@LINE-3]]:29: note: the last parameter in the range is 'Source'
115// CHECK-MESSAGES: :[[@LINE-4]]:26: note: 'const T *' and 'T *' parameters accept and bind the same kind of values
116
117void attributedParam1TypedefRef(
118 const __attribute__((address_space(256))) int &OneR,
119 __attribute__((address_space(256))) MyInt1 &TwoR) {}
120// CHECK-MESSAGES: :[[@LINE-2]]:5: warning: 2 adjacent parameters of 'attributedParam1TypedefRef' of similar type are
121// CHECK-MESSAGES: :[[@LINE-3]]:52: note: the first parameter in the range is 'OneR'
122// CHECK-MESSAGES: :[[@LINE-3]]:49: note: the last parameter in the range is 'TwoR'
123// CHECK-MESSAGES: :[[@LINE-5]]:5: note: after resolving type aliases, the common type of 'const __attribute__((address_space(256))) int &' and '__attribute__((address_space(256))) MyInt1 &' is '__attribute__((address_space(256))) int &'
124// CHECK-MESSAGES: :[[@LINE-5]]:5: note: 'const __attribute__((address_space(256))) int &' and '__attribute__((address_space(256))) MyInt1 &' parameters accept and bind the same kind of values
125
126void attributedParam2(__attribute__((address_space(256))) int *One,
127 const __attribute__((address_space(256))) MyInt1 *Two) {}
128// CHECK-MESSAGES: :[[@LINE-2]]:23: warning: 2 adjacent parameters of 'attributedParam2' of similar type are
129// CHECK-MESSAGES: :[[@LINE-3]]:64: note: the first parameter in the range is 'One'
130// CHECK-MESSAGES: :[[@LINE-3]]:73: note: the last parameter in the range is 'Two'
131// CHECK-MESSAGES: :[[@LINE-5]]:23: note: after resolving type aliases, '__attribute__((address_space(256))) int *' and 'const __attribute__((address_space(256))) MyInt1 *' share a common type
132// CHECK-MESSAGES: :[[@LINE-5]]:23: note: '__attribute__((address_space(256))) int *' and 'const __attribute__((address_space(256))) MyInt1 *' parameters accept and bind the same kind of values
133

source code of clang-tools-extra/test/clang-tidy/checkers/bugprone/easily-swappable-parameters-qualifiermixing.cpp