1 // RUN: %check_clang_tidy %s modernize-use-auto %t -- \
2 // RUN: -config="{CheckOptions: [{key: modernize-use-auto.RemoveStars, value: 'true'}, {key: modernize-use-auto.MinTypeNameLength, value: '0'}]}"
3
4 class MyType {};
5
6 class MyDerivedType : public MyType {};
7
8 // FIXME: the replacement sometimes results in two consecutive spaces after
9 // the word 'auto' (due to the presence of spaces at both sides of '*').
auto_new()10 void auto_new() {
11 MyType *a_new = new MyType();
12 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
13 // CHECK-FIXES: auto a_new = new MyType();
14
15 static MyType *a_static = new MyType();
16 // CHECK-MESSAGES: :[[@LINE-1]]:10: warning: use auto when initializing with new
17 // CHECK-FIXES: static auto a_static = new MyType();
18
19 MyType *derived = new MyDerivedType();
20
21 void *vd = new MyType();
22
23 // CV-qualifier tests.
24 //
25 // NOTE : the form "type const" is expected here because of a deficiency in
26 // TypeLoc where CV qualifiers are not considered part of the type location
27 // info. That is, all that is being replaced in each case is "MyType *" and
28 // not "MyType * const".
29 static MyType * const d_static = new MyType();
30 // CHECK-MESSAGES: :[[@LINE-1]]:10: warning: use auto when initializing with new
31 // CHECK-FIXES: static auto const d_static = new MyType();
32
33 MyType * const a_const = new MyType();
34 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
35 // CHECK-FIXES: auto const a_const = new MyType();
36
37 MyType * volatile vol = new MyType();
38 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
39 // CHECK-FIXES: auto volatile vol = new MyType();
40
41 struct SType {} *stype = new SType;
42
43 int (**func)(int, int) = new (int(*[5])(int,int));
44
45 int *array = new int[5];
46 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
47 // CHECK-FIXES: auto array = new int[5];
48
49 MyType *ptr(new MyType);
50 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use auto when initializing with new
51 // CHECK-FIXES: auto ptr(new MyType);
52
53 MyType *ptr2{new MyType};
54
55 {
56 // Test for declaration lists.
57 MyType *a = new MyType(), *b = new MyType(), *c = new MyType();
58 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
59 // CHECK-FIXES: auto a = new MyType(), b = new MyType(), c = new MyType();
60
61 // Non-initialized declaration should not be transformed.
62 MyType *d = new MyType(), *e;
63
64 MyType **f = new MyType*(), **g = new MyType*();
65 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
66 // CHECK-FIXES: auto f = new MyType*(), g = new MyType*();
67
68 // Mismatching types in declaration lists should not be transformed.
69 MyType *h = new MyType(), **i = new MyType*();
70
71 // '*' shouldn't be removed in case of mismatching types with multiple
72 // declarations.
73 MyType *j = new MyType(), *k = new MyType(), **l = new MyType*();
74 }
75
76 {
77 // Test for typedefs.
78 typedef int * int_p;
79 // CHECK-FIXES: typedef int * int_p;
80
81 int_p a = new int;
82 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
83 // CHECK-FIXES: auto a = new int;
84 int_p *b = new int*;
85 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
86 // CHECK-FIXES: auto b = new int*;
87
88 // Test for typedefs in declarations lists.
89 int_p c = new int, d = new int;
90 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
91 // CHECK-FIXES: auto c = new int, d = new int;
92
93 // Different types should not be transformed.
94 int_p e = new int, *f = new int_p;
95
96 int_p *g = new int*, *h = new int_p;
97 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: use auto when initializing with new
98 // CHECK-FIXES: auto g = new int*, h = new int_p;
99 }
100
101 // Don't warn when 'auto' is already being used.
102 auto aut = new MyType();
103 auto *paut = new MyType();
104 const auto *pcaut = new MyType();
105 }
106