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-rw-r--r--build/clang-plugin/tests/TestHeapClass.cpp64
1 files changed, 64 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestHeapClass.cpp b/build/clang-plugin/tests/TestHeapClass.cpp
new file mode 100644
index 0000000000..36e7629737
--- /dev/null
+++ b/build/clang-plugin/tests/TestHeapClass.cpp
@@ -0,0 +1,64 @@
+#define MOZ_HEAP_CLASS __attribute__((annotate("moz_heap_class")))
+#define MOZ_IMPLICIT __attribute__((annotate("moz_implicit")))
+
+#include <stddef.h>
+
+struct MOZ_HEAP_CLASS Heap {
+ int i;
+ Heap() {}
+ MOZ_IMPLICIT Heap(int a) {}
+ Heap(int a, int b) {}
+ void *operator new(size_t x) throw() { return 0; }
+ void *operator new(size_t blah, char *buffer) { return buffer; }
+};
+
+template <class T>
+struct MOZ_HEAP_CLASS TemplateClass {
+ T i;
+};
+
+void gobble(void *) { }
+
+void gobbleref(const Heap&) { }
+
+void misuseHeapClass(int len) {
+ Heap invalid; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}}
+ 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'}}
+ static Heap invalidStatic; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}}
+ 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'}}
+
+ gobble(&invalid);
+ gobble(&invalidStatic);
+ gobble(&alsoInvalid[0]);
+
+ gobbleref(Heap()); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}}
+ gobbleref(Heap(10, 20)); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}}
+ gobbleref(Heap(10)); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}}
+ gobbleref(10); // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a temporary}}
+
+ gobble(new Heap);
+ gobble(new Heap[10]);
+ gobble(new TemplateClass<int>);
+ gobble(len <= 5 ? &invalid : new Heap);
+
+ char buffer[sizeof(Heap)];
+ gobble(new (buffer) Heap);
+}
+
+Heap invalidStatic; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}}
+struct RandomClass {
+ Heap nonstaticMember; // expected-note {{'RandomClass' is a heap type because member 'nonstaticMember' is a heap type 'Heap'}}
+ static Heap staticMember; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}}
+};
+struct MOZ_HEAP_CLASS RandomHeapClass {
+ Heap nonstaticMember;
+ static Heap staticMember; // expected-error {{variable of type 'Heap' only valid on the heap}} expected-note {{value incorrectly allocated in a global variable}}
+};
+
+struct BadInherit : Heap {}; // expected-note {{'BadInherit' is a heap type because it inherits from a heap type 'Heap'}}
+struct MOZ_HEAP_CLASS GoodInherit : Heap {};
+
+void useStuffWrongly() {
+ BadInherit i; // expected-error {{variable of type 'BadInherit' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}}
+ RandomClass r; // expected-error {{variable of type 'RandomClass' only valid on the heap}} expected-note {{value incorrectly allocated in an automatic variable}}
+}