summaryrefslogtreecommitdiffstats
path: root/build/clang-plugin/tests/TestStackClass.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--build/clang-plugin/tests/TestStackClass.cpp50
1 files changed, 50 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestStackClass.cpp b/build/clang-plugin/tests/TestStackClass.cpp
new file mode 100644
index 0000000000..3289abef1b
--- /dev/null
+++ b/build/clang-plugin/tests/TestStackClass.cpp
@@ -0,0 +1,50 @@
+#define MOZ_STACK_CLASS __attribute__((annotate("moz_stack_class")))
+#include <stddef.h>
+
+struct MOZ_STACK_CLASS Stack {
+ int i;
+ void *operator new(size_t x) throw() { return 0; }
+ void *operator new(size_t blah, char *buffer) { return buffer; }
+};
+
+template <class T>
+struct MOZ_STACK_CLASS TemplateClass {
+ T i;
+};
+
+void gobble(void *) { }
+
+void misuseStackClass(int len) {
+ Stack valid;
+ Stack alsoValid[2];
+ static Stack notValid; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}}
+ static Stack alsoNotValid[2]; // expected-error-re {{variable of type 'Stack{{ ?}}[2]' only valid on the stack}} expected-note-re {{'Stack{{ ?}}[2]' is a stack type because it is an array of stack type 'Stack'}} expected-note {{value incorrectly allocated in a global variable}}
+
+ gobble(&valid);
+ gobble(&notValid);
+ gobble(&alsoValid[0]);
+
+ gobble(new Stack); // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}}
+ gobble(new Stack[10]); // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}}
+ gobble(new TemplateClass<int>); // expected-error {{variable of type 'TemplateClass<int>' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}}
+ gobble(len <= 5 ? &valid : new Stack); // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}}
+
+ char buffer[sizeof(Stack)];
+ gobble(new (buffer) Stack);
+}
+
+Stack notValid; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}}
+struct RandomClass {
+ Stack nonstaticMember; // expected-note {{'RandomClass' is a stack type because member 'nonstaticMember' is a stack type 'Stack'}}
+ static Stack staticMember; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}}
+};
+struct MOZ_STACK_CLASS RandomStackClass {
+ Stack nonstaticMember;
+ static Stack staticMember; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}}
+};
+
+struct BadInherit : Stack {}; // expected-note {{'BadInherit' is a stack type because it inherits from a stack type 'Stack'}}
+struct MOZ_STACK_CLASS GoodInherit : Stack {};
+
+BadInherit moreInvalid; // expected-error {{variable of type 'BadInherit' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}}
+RandomClass evenMoreInvalid; // expected-error {{variable of type 'RandomClass' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}}