llvm-project/clang/test/SemaObjCXX/arc-object-init-destroy.mm

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// RUN: %clang_cc1 -fobjc-nonfragile-abi -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -verify -Warc-abi -fblocks -triple x86_64-apple-darwin10.0.0 %s
typedef __strong id strong_id;
typedef __weak id weak_id;
void test_pseudo_destructors(__strong id *sptr, __weak id *wptr) {
sptr->~id(); // okay
wptr->~id(); // okay
sptr->~strong_id(); // okay
wptr->~weak_id();
sptr->~weak_id(); // expected-error{{pseudo-destructor destroys object of type '__strong id' with inconsistently-qualified type 'weak_id' (aka '__weak id')}}
wptr->strong_id::~strong_id(); // expected-error{{pseudo-destructor destroys object of type '__weak id' with inconsistently-qualified type 'strong_id' (aka '__strong id')}}
sptr->id::~id(); // okay
wptr->id::~id(); // okay
}
void test_delete(__strong id *sptr, __weak id *wptr) {
delete sptr;
delete wptr;
delete [] sptr; // expected-warning{{destroying an array of '__strong id'; this array must not have been allocated from non-ARC code}}
delete [] wptr; // expected-warning{{destroying an array of '__weak id'; this array must not have been allocated from non-ARC code}}
}
void test_new(int n) {
(void)new strong_id;
(void)new weak_id;
(void)new strong_id [n]; // expected-warning{{allocating an array of 'strong_id' (aka '__strong id'); this array must not be deleted in non-ARC code}}
(void)new weak_id [n]; // expected-warning{{allocating an array of 'weak_id' (aka '__weak id'); this array must not be deleted in non-ARC code}}
(void)new __strong id;
(void)new __weak id;
(void)new __strong id [n]; // expected-warning{{allocating an array of '__strong id'; this array must not be deleted in non-ARC code}}
// Infer '__strong'.
__strong id *idptr = new id;
__strong id *idptr2 = new id [n]; // expected-warning{{allocating an array of '__strong id'; this array must not be deleted in non-ARC code}}
// ... but not for arrays.
typedef id id_array[2][3];
(void)new id_array; // expected-error{{'new' cannot allocate an array of 'id' with no explicit ownership}}
typedef __strong id strong_id_array[2][3];
typedef __strong id strong_id_3[3];
strong_id_3 *idptr3 = new strong_id_array; // expected-warning{{allocating an array of '__strong id'; this array must not be deleted in non-ARC code}}
}
void test_jump_scope() {
goto done; // expected-error{{goto into protected scope}}
__strong id x; // expected-note{{jump bypasses initialization of retaining variable}}
done:
return;
}