Mirror of roytam1's UXP fork just in case Moonchild and Tobin decide to go after him
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#define MOZ_NONHEAP_CLASS __attribute__((annotate("moz_nonheap_class")))
#define MOZ_HEAP_ALLOCATOR \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wgcc-compat\"") \
__attribute__((annotate("moz_heap_allocator"))) \
_Pragma("GCC diagnostic pop")
#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();
}
template <typename T>
void misuseX(T q) {
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}}
}