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build/clang-plugin/tests/TestCustomHeap.cpp@b8a032363ba2 (annotated)

build/clang-plugin/tests/TestCustomHeap.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	#define MOZ_NONHEAP_CLASS __attribute__((annotate("moz_nonheap_class")))
michael@0	2	#define MOZ_HEAP_ALLOCATOR \
michael@0	3	_Pragma("GCC diagnostic push") \
michael@0	4	_Pragma("GCC diagnostic ignored \"-Wgcc-compat\"") \
michael@0	5	__attribute__((annotate("moz_heap_allocator"))) \
michael@0	6	_Pragma("GCC diagnostic pop")
michael@0	7
michael@0	8	#include <stdlib.h>
michael@0	9	#include <memory>
michael@0	10
michael@0	11	struct MOZ_NONHEAP_CLASS X {
michael@0	12	};
michael@0	13
michael@0	14	void *operator new(size_t x, int qual) MOZ_HEAP_ALLOCATOR {
michael@0	15	return ::operator new(x);
michael@0	16	}
michael@0	17
michael@0	18	template <typename T>
michael@0	19	T *customAlloc() MOZ_HEAP_ALLOCATOR {
michael@0	20	T *arg = static_cast<T*>(malloc(sizeof(T)));
michael@0	21	return new (arg) T();
michael@0	22	}
michael@0	23
michael@0	24	template <typename T>
michael@0	25	void misuseX(T q) {
michael@0	26	X *foo = customAlloc<X>(); // expected-error {{variable of type 'X' is not valid on the heap}}
michael@0	27	X *foo2 = new (100) X(); // expected-error {{variable of type 'X' is not valid on the heap}}
michael@0	28	}