f28bbec90e
consumable objects. These are useful for implementing error codes that must be checked. Patch also includes some significant refactoring, which was necesary to implement the new behavior. llvm-svn: 199169
66 lines
3.9 KiB
C++
66 lines
3.9 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -Wconsumed -std=c++11 %s
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#define CALLABLE_WHEN(...) __attribute__ ((callable_when(__VA_ARGS__)))
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#define CONSUMABLE(state) __attribute__ ((consumable(state)))
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#define SET_TYPESTATE(state) __attribute__ ((set_typestate(state)))
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#define RETURN_TYPESTATE(state) __attribute__ ((return_typestate(state)))
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#define TEST_TYPESTATE(state) __attribute__ ((test_typestate(state)))
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// FIXME: This test is here because the warning is issued by the Consumed
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// analysis, not SemaDeclAttr. The analysis won't run after an error
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// has been issued. Once the attribute propagation for template
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// instantiation has been fixed, this can be moved somewhere else and the
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// definition can be removed.
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int returnTypestateForUnconsumable() RETURN_TYPESTATE(consumed); // expected-warning {{return state set for an unconsumable type 'int'}}
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int returnTypestateForUnconsumable() {
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return 0;
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}
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class AttrTester0 {
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void consumes() __attribute__ ((set_typestate())); // expected-error {{'set_typestate' attribute takes one argument}}
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bool testUnconsumed() __attribute__ ((test_typestate())); // expected-error {{'test_typestate' attribute takes one argument}}
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void callableWhen() __attribute__ ((callable_when())); // expected-error {{'callable_when' attribute takes at least 1 argument}}
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};
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int var0 SET_TYPESTATE(consumed); // expected-warning {{'set_typestate' attribute only applies to methods}}
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int var1 TEST_TYPESTATE(consumed); // expected-warning {{'test_typestate' attribute only applies to methods}}
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int var2 CALLABLE_WHEN("consumed"); // expected-warning {{'callable_when' attribute only applies to methods}}
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int var3 CONSUMABLE(consumed); // expected-warning {{'consumable' attribute only applies to classes}}
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int var4 RETURN_TYPESTATE(consumed); // expected-warning {{'return_typestate' attribute only applies to functions}}
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void function0() SET_TYPESTATE(consumed); // expected-warning {{'set_typestate' attribute only applies to methods}}
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void function1() TEST_TYPESTATE(consumed); // expected-warning {{'test_typestate' attribute only applies to methods}}
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void function2() CALLABLE_WHEN("consumed"); // expected-warning {{'callable_when' attribute only applies to methods}}
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void function3() CONSUMABLE(consumed); // expected-warning {{'consumable' attribute only applies to classes}}
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class CONSUMABLE(unknown) AttrTester1 {
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void callableWhen0() CALLABLE_WHEN("unconsumed");
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void callableWhen1() CALLABLE_WHEN(42); // expected-error {{'callable_when' attribute requires a string}}
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void callableWhen2() CALLABLE_WHEN("foo"); // expected-warning {{'callable_when' attribute argument not supported: foo}}
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void consumes() SET_TYPESTATE(consumed);
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bool testUnconsumed() TEST_TYPESTATE(consumed);
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};
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AttrTester1 returnTypestateTester0() RETURN_TYPESTATE(not_a_state); // expected-warning {{'return_typestate' attribute argument not supported: 'not_a_state'}}
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AttrTester1 returnTypestateTester1() RETURN_TYPESTATE(42); // expected-error {{'return_typestate' attribute requires an identifier}}
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void returnTypestateTester2(AttrTester1 &Param RETURN_TYPESTATE(unconsumed));
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class AttrTester2 {
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void callableWhen() CALLABLE_WHEN("unconsumed"); // expected-warning {{consumed analysis attribute is attached to member of class 'AttrTester2' which isn't marked as consumable}}
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void consumes() SET_TYPESTATE(consumed); // expected-warning {{consumed analysis attribute is attached to member of class 'AttrTester2' which isn't marked as consumable}}
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bool testUnconsumed() TEST_TYPESTATE(consumed); // expected-warning {{consumed analysis attribute is attached to member of class 'AttrTester2' which isn't marked as consumable}}
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};
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class CONSUMABLE(42) AttrTester3; // expected-error {{'consumable' attribute requires an identifier}}
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class CONSUMABLE(unconsumed)
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__attribute__((consumable_auto_cast_state))
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__attribute__((consumable_set_state_on_read))
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Status {
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};
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