blob: c1e82f2fa7b5d00803cbfdf8e760f015f44e1942 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
#define MOZ_NONHEAP_CLASS __attribute__((annotate("moz_nonheap_class")))
#ifndef MOZ_HEAP_ALLOCATOR
#define MOZ_HEAP_ALLOCATOR \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wgcc-compat\"") \
__attribute__((annotate("moz_heap_allocator"))) \
_Pragma("GCC diagnostic pop")
#endif
#include <stdlib.h>
#include <memory>
struct MOZ_NONHEAP_CLASS X {
};
void *operator new(size_t x, int qual) MOZ_HEAP_ALLOCATOR {
return ::operator new(x);
}
template <typename T>
T *customAlloc() MOZ_HEAP_ALLOCATOR {
T *arg = static_cast<T*>(malloc(sizeof(T)));
return new (arg) T();
}
void misuseX() {
X *foo = customAlloc<X>(); // expected-error {{variable of type 'X' is not valid on the heap}} expected-note {{value incorrectly allocated on the heap}}
X *foo2 = new (100) X(); // expected-error {{variable of type 'X' is not valid on the heap}} expected-note {{value incorrectly allocated on the heap}}
}
|
