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