1 // RUN: %check_clang_tidy -check-suffixes=,NO-CONFIG %s bugprone-lambda-function-name %t
2 // RUN: %check_clang_tidy %s bugprone-lambda-function-name %t -- -config="{CheckOptions: [{key: bugprone-lambda-function-name.IgnoreMacros, value: true}]}" --
3
4
Foo(const char * a,const char * b,int c)5 void Foo(const char* a, const char* b, int c) {}
6
7 #define FUNC_MACRO Foo(__func__, "", 0)
8 #define FUNCTION_MACRO Foo(__FUNCTION__, "", 0)
9 #define EMBED_IN_ANOTHER_MACRO1 FUNC_MACRO
10
Positives()11 void Positives() {
12 [] { __func__; }();
13 // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
14 [] { __FUNCTION__; }();
15 // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: inside a lambda, '__FUNCTION__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
16 [] { FUNC_MACRO; }();
17 // CHECK-MESSAGES-NO-CONFIG: :[[@LINE-1]]:8: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
18 [] { FUNCTION_MACRO; }();
19 // CHECK-MESSAGES-NO-CONFIG: :[[@LINE-1]]:8: warning: inside a lambda, '__FUNCTION__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
20 [] { EMBED_IN_ANOTHER_MACRO1; }();
21 // CHECK-MESSAGES-NO-CONFIG: :[[@LINE-1]]:8: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
22 [] {
23 __func__;
24 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
25 struct S {
26 void f() {
27 __func__;
28 [] {
29 __func__;
30 // CHECK-MESSAGES: :[[@LINE-1]]:11: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
31 }();
32 __func__;
33 }
34 };
35 __func__;
36 // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: inside a lambda, '__func__' expands to the name of the function call operator; consider capturing the name of the enclosing function explicitly [bugprone-lambda-function-name]
37 }();
38 }
39
40 #define FUNC_MACRO_WITH_FILE_AND_LINE Foo(__func__, __FILE__, __LINE__)
41 #define FUNCTION_MACRO_WITH_FILE_AND_LINE Foo(__FUNCTION__, __FILE__, __LINE__)
42 #define EMBED_IN_ANOTHER_MACRO2 FUNC_MACRO_WITH_FILE_AND_LINE
43
Negatives()44 void Negatives() {
45 __func__;
46 __FUNCTION__;
47
48 // __PRETTY_FUNCTION__ should not trigger a warning because its value is
49 // actually potentially useful.
50 __PRETTY_FUNCTION__;
51 [] { __PRETTY_FUNCTION__; }();
52
53 // Don't warn if __func__/__FUNCTION is used inside a macro that also uses
54 // __FILE__ and __LINE__, on the assumption that __FILE__ and __LINE__ will
55 // be useful even if __func__/__FUNCTION__ is not.
56 [] { FUNC_MACRO_WITH_FILE_AND_LINE; }();
57 [] { FUNCTION_MACRO_WITH_FILE_AND_LINE; }();
58 [] { EMBED_IN_ANOTHER_MACRO2; }();
59
60 [] (const char* func = __func__) { func; }();
61 [func=__func__] { func; }();
62 }
63