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64 lines
3.4 KiB
64 lines
3.4 KiB
#define MOZ_HEAP_CLASS __attribute__((annotate("moz_heap_class"))) |
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#define MOZ_IMPLICIT __attribute__((annotate("moz_implicit"))) |
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#include <stddef.h> |
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struct MOZ_HEAP_CLASS Heap { |
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int i; |
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Heap() {} |
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MOZ_IMPLICIT Heap(int a) {} |
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Heap(int a, int b) {} |
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void *operator new(size_t x) throw() { return 0; } |
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void *operator new(size_t blah, char *buffer) { return buffer; } |
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}; |
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template <class T> |
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struct MOZ_HEAP_CLASS TemplateClass { |
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T i; |
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}; |
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void gobble(void *) { } |
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void gobbleref(const Heap&) { } |
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void misuseHeapClass(int len) { |
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Heap invalid; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}} |
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Heap alsoInvalid[2]; // expected-error {{variable of type 'Heap [2]' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}} expected-note {{'Heap [2]' is a heap type because it is an array of heap type 'Heap'}} |
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static Heap invalidStatic; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}} |
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static Heap alsoInvalidStatic[2]; // expected-error {{variable of type 'Heap [2]' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}} expected-note {{'Heap [2]' is a heap type because it is an array of heap type 'Heap'}} |
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gobble(&invalid); |
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gobble(&invalidStatic); |
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gobble(&alsoInvalid[0]); |
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gobbleref(Heap()); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}} |
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gobbleref(Heap(10, 20)); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}} |
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gobbleref(Heap(10)); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}} |
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gobbleref(10); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}} |
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gobble(new Heap); |
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gobble(new Heap[10]); |
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gobble(new TemplateClass<int>); |
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gobble(len <= 5 ? &invalid : new Heap); |
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char buffer[sizeof(Heap)]; |
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gobble(new (buffer) Heap); |
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} |
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Heap invalidStatic; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}} |
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struct RandomClass { |
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Heap nonstaticMember; // expected-note {{'RandomClass' is a heap type because member 'nonstaticMember' is a heap type 'Heap'}} |
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static Heap staticMember; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}} |
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}; |
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struct MOZ_HEAP_CLASS RandomHeapClass { |
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Heap nonstaticMember; |
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static Heap staticMember; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}} |
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}; |
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struct BadInherit : Heap {}; // expected-note {{'BadInherit' is a heap type because it inherits from a heap type 'Heap'}} |
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struct MOZ_HEAP_CLASS GoodInherit : Heap {}; |
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void useStuffWrongly() { |
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BadInherit i; // expected-error {{variable of type 'BadInherit' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}} |
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RandomClass r; // expected-error {{variable of type 'RandomClass' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}} |
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}
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