1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/gdb/tests/test-JSObject.cpp b/js/src/gdb/tests/test-JSObject.cpp
new file mode 100644
index 0000000000..b1780a7332
--- /dev/null
+++ b/js/src/gdb/tests/test-JSObject.cpp
@@ -0,0 +1,54 @@
+#include "gdb-tests.h"
+#include "jsapi.h"
+#include "js/GlobalObject.h"
+#include "js/Object.h"  // JS::GetClass
+
+FRAGMENT(JSObject, simple) {
+  JS::Rooted<JSObject*> glob(cx, JS::CurrentGlobalOrNull(cx));
+  JS::Rooted<JSObject*> plain(cx, JS_NewPlainObject(cx));
+  JS::Rooted<JSObject*> objectProto(cx, JS::GetRealmObjectPrototype(cx));
+  JS::Rooted<JSObject*> global(cx, JS::CurrentGlobalOrNull(cx));
+  JS::Rooted<JSObject*> func(
+      cx, (JSObject*)JS_NewFunction(cx, (JSNative)1, 0, 0, "dys"));
+  JS::Rooted<JSObject*> anon(
+      cx, (JSObject*)JS_NewFunction(cx, (JSNative)1, 0, 0, nullptr));
+  JS::Rooted<JSFunction*> funcPtr(
+      cx, JS_NewFunction(cx, (JSNative)1, 0, 0, "formFollows"));
+
+  // JS_NewObject will now assert if you feed it a bad class name, so mangle
+  // the name after construction.
+  char namebuf[20] = "goodname";
+  static JSClass cls{namebuf};
+  JS::RootedObject badClassName(cx, JS_NewObject(cx, &cls));
+  MOZ_RELEASE_ASSERT(badClassName);
+  strcpy(namebuf, "\xc7X");
+
+  JSObject& plainRef = *plain;
+  JSFunction& funcRef = *funcPtr;
+  JSObject* plainRaw = plain;
+  JSObject* funcRaw = func;
+
+  breakpoint();
+
+  use(glob);
+  use(plain);
+  use(objectProto);
+  use(func);
+  use(anon);
+  use(funcPtr);
+  use(&plainRef);
+  use(&funcRef);
+  use(JS::GetClass((JSObject*)&funcRef));
+  use(plainRaw);
+  use(funcRaw);
+}
+
+FRAGMENT(JSObject, null) {
+  JS::Rooted<JSObject*> null(cx, nullptr);
+  JSObject* nullRaw = null;
+
+  breakpoint();
+
+  use(null);
+  use(nullRaw);
+}