forked from OSchip/llvm-project
66 lines
2.6 KiB
C++
66 lines
2.6 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();
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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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void bar(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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const Twine t2 = Twine();
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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 t2 = (Twine()).str();
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foo(Twine() + "b");
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const Twine t3 = 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 t3 = (Twine(42)).str();
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const Twine t4 = Twine(42) + "b";
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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 t4 = (Twine(42) + "b").str();
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const Twine t5 = Twine() + "b";
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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 t5 = (Twine() + "b").str();
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const Twine t6 = true ? Twine() : 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 t6 = (true ? Twine() : Twine(42)).str();
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const Twine t7 = false ? Twine() : Twine("b");
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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 t7 = (false ? Twine() : Twine("b")).str();
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}
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