1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/gdb/tests/test-Root.cpp b/js/src/gdb/tests/test-Root.cpp
new file mode 100644
index 000000000..6a8d8928b
--- /dev/null
+++ b/js/src/gdb/tests/test-Root.cpp
@@ -0,0 +1,61 @@
+#include "gdb-tests.h"
+
+#include "jsapi.h"
+#include "jsfun.h"
+
+#include "gc/Barrier.h"
+
+FRAGMENT(Root, null) {
+  JS::Rooted<JSObject*> null(cx, nullptr);
+
+  breakpoint();
+
+  (void) null;
+}
+
+void callee(JS::Handle<JSObject*> obj, JS::MutableHandle<JSObject*> mutableObj)
+{
+  // Prevent the linker from unifying this function with others that are
+  // equivalent in machine code but not type.
+  fprintf(stderr, "Called " __FILE__ ":callee\n");
+  breakpoint();
+}
+
+FRAGMENT(Root, handle) {
+  JS::Rooted<JSObject*> global(cx, JS::CurrentGlobalOrNull(cx));
+  callee(global, &global);
+  (void) global;
+}
+
+FRAGMENT(Root, HeapSlot) {
+  JS::Rooted<JS::Value> plinth(cx, JS::StringValue(JS_NewStringCopyZ(cx, "plinth")));
+  JS::Rooted<JSObject*> array(cx, JS_NewArrayObject(cx, JS::HandleValueArray(plinth)));
+
+  breakpoint();
+
+  (void) plinth;
+  (void) array;
+}
+
+FRAGMENT(Root, barriers) {
+  JSObject* obj = JS_NewPlainObject(cx);
+  js::PreBarriered<JSObject*> prebarriered(obj);
+  js::GCPtrObject heapptr(obj);
+  js::HeapPtr<JSObject*> relocatable(obj);
+
+  JS::Value val = JS::ObjectValue(*obj);
+  js::PreBarrieredValue prebarrieredValue(JS::ObjectValue(*obj));
+  js::GCPtrValue heapValue(JS::ObjectValue(*obj));
+  js::HeapPtr<JS::Value> relocatableValue(JS::ObjectValue(*obj));
+
+  breakpoint();
+
+  (void) prebarriered;
+  (void) heapptr;
+  (void) relocatable;
+  (void) val;
+  (void) prebarrieredValue;
+  (void) heapValue;
+  (void) relocatableValue;
+}
+