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150
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1 // RUN: %clang_cc1 -fsyntax-only -Wthread-safety -verify %s
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2
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3 typedef int __attribute__((capability("role"))) ThreadRole;
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4 struct __attribute__((shared_capability("mutex"))) Mutex {};
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5 struct NotACapability {};
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6
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7 // Put capability attributes on unions
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8 union __attribute__((capability("mutex"))) MutexUnion { int a; char* b; };
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9 typedef union { int a; char* b; } __attribute__((capability("mutex"))) MutexUnion2;
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10
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11 // Test a different capability name
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12 struct __attribute__((capability("custom"))) CustomName {};
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13
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14 int Test1 __attribute__((capability("test1"))); // expected-error {{'capability' attribute only applies to structs, unions, classes, and typedefs}}
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15 int Test2 __attribute__((shared_capability("test2"))); // expected-error {{'shared_capability' attribute only applies to structs, unions, classes, and typedefs}}
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16 int Test3 __attribute__((acquire_capability("test3"))); // expected-warning {{'acquire_capability' attribute only applies to functions}}
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17 int Test4 __attribute__((try_acquire_capability("test4"))); // expected-error {{'try_acquire_capability' attribute only applies to functions}}
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18 int Test5 __attribute__((release_capability("test5"))); // expected-warning {{'release_capability' attribute only applies to functions}}
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19
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20 struct __attribute__((capability(12))) Test3 {}; // expected-error {{'capability' attribute requires a string}}
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21 struct __attribute__((shared_capability(Test2))) Test4 {}; // expected-error {{'shared_capability' attribute requires a string}}
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22
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23 struct __attribute__((capability)) Test5 {}; // expected-error {{'capability' attribute takes one argument}}
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24 struct __attribute__((shared_capability("test1", 12))) Test6 {}; // expected-error {{'shared_capability' attribute takes one argument}}
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25
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26 struct NotACapability BadCapability;
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27 ThreadRole GUI, Worker;
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28 void Func1(void) __attribute__((requires_capability(GUI))) {}
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29 void Func2(void) __attribute__((requires_shared_capability(Worker))) {}
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30
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31 void Func3(void) __attribute__((requires_capability)) {} // expected-error {{'requires_capability' attribute takes at least 1 argument}}
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32 void Func4(void) __attribute__((requires_shared_capability)) {} // expected-error {{'requires_shared_capability' attribute takes at least 1 argument}}
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33
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34 void Func5(void) __attribute__((requires_capability(1))) {} // expected-warning {{'requires_capability' attribute requires arguments whose type is annotated with 'capability' attribute; type here is 'int'}}
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35 void Func6(void) __attribute__((requires_shared_capability(BadCapability))) {} // expected-warning {{'requires_shared_capability' attribute requires arguments whose type is annotated with 'capability' attribute; type here is 'struct NotACapability'}}
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36
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37 void Func7(void) __attribute__((assert_capability(GUI))) {}
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38 void Func8(void) __attribute__((assert_shared_capability(GUI))) {}
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39
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40 void Func9(void) __attribute__((assert_capability())) {} // expected-warning {{'assert_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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41 void Func10(void) __attribute__((assert_shared_capability())) {} // expected-warning {{'assert_shared_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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42
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43 void Func11(void) __attribute__((acquire_capability(GUI))) {}
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44 void Func12(void) __attribute__((acquire_shared_capability(GUI))) {}
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45
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46 void Func13(void) __attribute__((acquire_capability())) {} // expected-warning {{'acquire_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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47 void Func14(void) __attribute__((acquire_shared_capability())) {} // expected-warning {{'acquire_shared_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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48
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49 void Func15(void) __attribute__((release_capability(GUI))) {}
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50 void Func16(void) __attribute__((release_shared_capability(GUI))) {}
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51 void Func17(void) __attribute__((release_generic_capability(GUI))) {}
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52
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53 void Func18(void) __attribute__((release_capability())) {} // expected-warning {{'release_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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54 void Func19(void) __attribute__((release_shared_capability())) {} // expected-warning {{'release_shared_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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55 void Func20(void) __attribute__((release_generic_capability())) {} // expected-warning {{'release_generic_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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56
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57 void Func21(void) __attribute__((try_acquire_capability(1))) {} // expected-warning {{'try_acquire_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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58 void Func22(void) __attribute__((try_acquire_shared_capability(1))) {} // expected-warning {{'try_acquire_shared_capability' attribute without capability arguments can only be applied to non-static methods of a class}}
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59
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60 void Func23(void) __attribute__((try_acquire_capability(1, GUI))) {}
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61 void Func24(void) __attribute__((try_acquire_shared_capability(1, GUI))) {}
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62
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63 void Func25(void) __attribute__((try_acquire_capability())) {} // expected-error {{'try_acquire_capability' attribute takes at least 1 argument}}
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64 void Func26(void) __attribute__((try_acquire_shared_capability())) {} // expected-error {{'try_acquire_shared_capability' attribute takes at least 1 argument}}
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65
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66 // Test that boolean logic works with capability attributes
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67 void Func27(void) __attribute__((requires_capability(!GUI)));
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68 void Func28(void) __attribute__((requires_capability(GUI && Worker)));
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69 void Func29(void) __attribute__((requires_capability(GUI || Worker)));
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70 void Func30(void) __attribute__((requires_capability((Worker || Worker) && !GUI)));
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71
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72 int AlsoNotACapability;
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73 void Func31(void) __attribute__((requires_capability(GUI && AlsoNotACapability))); // expected-warning {{'requires_capability' attribute requires arguments whose type is annotated with 'capability' attribute; type here is 'int'}}
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