1 // RUN: %clang_cc1 -fsyntax-only -verify -Wconsumed -std=c++11 %s
2 
3 #define CALLABLE_WHEN(...)      __attribute__ ((callable_when(__VA_ARGS__)))
4 #define CONSUMABLE(state)       __attribute__ ((consumable(state)))
5 #define SET_TYPESTATE(state)    __attribute__ ((set_typestate(state)))
6 #define RETURN_TYPESTATE(state) __attribute__ ((return_typestate(state)))
7 #define TEST_TYPESTATE(state)   __attribute__ ((test_typestate(state)))
8 
9 // FIXME: This test is here because the warning is issued by the Consumed
10 //        analysis, not SemaDeclAttr.  The analysis won't run after an error
11 //        has been issued.  Once the attribute propagation for template
12 //        instantiation has been fixed, this can be moved somewhere else and the
13 //        definition can be removed.
14 int returnTypestateForUnconsumable() RETURN_TYPESTATE(consumed); // expected-warning {{return state set for an unconsumable type 'int'}}
returnTypestateForUnconsumable()15 int returnTypestateForUnconsumable() {
16   return 0;
17 }
18 
19 class AttrTester0 {
20   void consumes()       __attribute__ ((set_typestate())); // expected-error {{'set_typestate' attribute takes one argument}}
21   bool testUnconsumed() __attribute__ ((test_typestate())); // expected-error {{'test_typestate' attribute takes one argument}}
22   void callableWhen()   __attribute__ ((callable_when())); // expected-error {{'callable_when' attribute takes at least 1 argument}}
23 };
24 
25 int var0 SET_TYPESTATE(consumed); // expected-warning {{'set_typestate' attribute only applies to methods}}
26 int var1 TEST_TYPESTATE(consumed); // expected-warning {{'test_typestate' attribute only applies to methods}}
27 int var2 CALLABLE_WHEN("consumed"); // expected-warning {{'callable_when' attribute only applies to methods}}
28 int var3 CONSUMABLE(consumed); // expected-warning {{'consumable' attribute only applies to classes}}
29 int var4 RETURN_TYPESTATE(consumed); // expected-warning {{'return_typestate' attribute only applies to functions}}
30 
31 void function0() SET_TYPESTATE(consumed); // expected-warning {{'set_typestate' attribute only applies to methods}}
32 void function1() TEST_TYPESTATE(consumed); // expected-warning {{'test_typestate' attribute only applies to methods}}
33 void function2() CALLABLE_WHEN("consumed"); // expected-warning {{'callable_when' attribute only applies to methods}}
34 void function3() CONSUMABLE(consumed); // expected-warning {{'consumable' attribute only applies to classes}}
35 
CONSUMABLE(unknown)36 class CONSUMABLE(unknown) AttrTester1 {
37   void callableWhen0()  CALLABLE_WHEN("unconsumed");
38   void callableWhen1()  CALLABLE_WHEN(42); // expected-error {{'callable_when' attribute requires a string}}
39   void callableWhen2()  CALLABLE_WHEN("foo"); // expected-warning {{'callable_when' attribute argument not supported: foo}}
40   void callableWhen3()  CALLABLE_WHEN(unconsumed);
41   void consumes()       SET_TYPESTATE(consumed);
42   bool testUnconsumed() TEST_TYPESTATE(consumed);
43 };
44 
45 AttrTester1 returnTypestateTester0() RETURN_TYPESTATE(not_a_state); // expected-warning {{'return_typestate' attribute argument not supported: 'not_a_state'}}
46 AttrTester1 returnTypestateTester1() RETURN_TYPESTATE(42); // expected-error {{'return_typestate' attribute requires an identifier}}
47 
48 void returnTypestateTester2(AttrTester1 &Param RETURN_TYPESTATE(unconsumed));
49 
50 class AttrTester2 {
51   void callableWhen()   CALLABLE_WHEN("unconsumed"); // expected-warning {{consumed analysis attribute is attached to member of class 'AttrTester2' which isn't marked as consumable}}
52   void consumes()       SET_TYPESTATE(consumed); // expected-warning {{consumed analysis attribute is attached to member of class 'AttrTester2' which isn't marked as consumable}}
53   bool testUnconsumed() TEST_TYPESTATE(consumed); // expected-warning {{consumed analysis attribute is attached to member of class 'AttrTester2' which isn't marked as consumable}}
54 };
55 
56 class CONSUMABLE(42) AttrTester3; // expected-error {{'consumable' attribute requires an identifier}}
57 
58 
CONSUMABLE(unconsumed)59 class CONSUMABLE(unconsumed)
60       __attribute__((consumable_auto_cast_state))
61       __attribute__((consumable_set_state_on_read))
62       Status {
63 };
64 
65 
66 
67