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
|
// RUN: %check_clang_tidy %s llvm-twine-local %t
namespace llvm {
class Twine {
public:
Twine(const char *);
Twine(int);
Twine &operator+(const Twine &);
};
}
using namespace llvm;
void foo(const Twine &x);
static Twine Moo = Twine("bark") + "bah";
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: twine variables are prone to use-after-free bugs
// CHECK-MESSAGES: note: FIX-IT applied suggested code changes
// CHECK-FIXES: static std::string Moo = (Twine("bark") + "bah").str();
int main() {
const Twine t = Twine("a") + "b" + Twine(42);
// CHECK-MESSAGES: :[[@LINE-1]]:15: warning: twine variables are prone to use-after-free bugs
// CHECK-MESSAGES: note: FIX-IT applied suggested code changes
// CHECK-FIXES: std::string t = (Twine("a") + "b" + Twine(42)).str();
foo(Twine("a") + "b");
Twine Prefix = false ? "__INT_FAST" : "__UINT_FAST";
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: twine variables are prone to use-after-free bugs
// CHECK-MESSAGES: note: FIX-IT applied suggested code changes
// CHECK-FIXES: const char * Prefix = false ? "__INT_FAST" : "__UINT_FAST";
}
|
