1 files changed, 70 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestNonTemporaryClass.cpp b/build/clang-plugin/tests/TestNonTemporaryClass.cpp
new file mode 100644
index 0000000000..682c8ad530
--- /dev/null
+++ b/build/clang-plugin/tests/TestNonTemporaryClass.cpp
@@ -0,0 +1,70 @@
+#define MOZ_NON_TEMPORARY_CLASS __attribute__((annotate("moz_non_temporary_class")))
+#define MOZ_IMPLICIT __attribute__((annotate("moz_implicit")))
+
+#include <stddef.h>
+
+struct MOZ_NON_TEMPORARY_CLASS NonTemporary {
+  int i;
+  NonTemporary() {}
+  MOZ_IMPLICIT NonTemporary(int a) {}
+  NonTemporary(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_NON_TEMPORARY_CLASS TemplateClass {
+  T i;
+};
+
+void gobble(void *) { }
+
+void gobbleref(const NonTemporary&) { }
+
+template <class T>
+void gobbleanyref(const T&) { }
+
+void misuseNonTemporaryClass(int len) {
+  NonTemporary invalid;
+  NonTemporary alsoInvalid[2];
+  static NonTemporary invalidStatic;
+  static NonTemporary alsoInvalidStatic[2];
+
+  gobble(&invalid);
+  gobble(&invalidStatic);
+  gobble(&alsoInvalid[0]);
+
+  gobbleref(NonTemporary()); // expected-error {{variable of type 'NonTemporary' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+  gobbleref(NonTemporary(10, 20)); // expected-error {{variable of type 'NonTemporary' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+  gobbleref(NonTemporary(10)); // expected-error {{variable of type 'NonTemporary' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+  gobbleref(10); // expected-error {{variable of type 'NonTemporary' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+  gobbleanyref(TemplateClass<int>()); // expected-error {{variable of type 'TemplateClass<int>' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+
+  gobble(new NonTemporary);
+  gobble(new NonTemporary[10]);
+  gobble(new TemplateClass<int>);
+  gobble(len <= 5 ? &invalid : new NonTemporary);
+
+  char buffer[sizeof(NonTemporary)];
+  gobble(new (buffer) NonTemporary);
+}
+
+void defaultArg(const NonTemporary& arg = NonTemporary()) {
+}
+
+NonTemporary invalidStatic;
+struct RandomClass {
+  NonTemporary nonstaticMember; // expected-note {{'RandomClass' is a non-temporary type because member 'nonstaticMember' is a non-temporary type 'NonTemporary'}}
+  static NonTemporary staticMember;
+};
+struct MOZ_NON_TEMPORARY_CLASS RandomNonTemporaryClass {
+  NonTemporary nonstaticMember;
+  static NonTemporary staticMember;
+};
+
+struct BadInherit : NonTemporary {}; // expected-note {{'BadInherit' is a non-temporary type because it inherits from a non-temporary type 'NonTemporary'}}
+
+void useStuffWrongly() {
+  gobbleanyref(BadInherit()); // expected-error {{variable of type 'BadInherit' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+  gobbleanyref(RandomClass()); // expected-error {{variable of type 'RandomClass' is not valid in a temporary}} expected-note {{value incorrectly allocated in a temporary}}
+}