1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/debugger/Object-inl.h b/js/src/debugger/Object-inl.h
new file mode 100644
index 0000000000..890a426f83
--- /dev/null
+++ b/js/src/debugger/Object-inl.h
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef debugger_Object_inl_h
+#define debugger_Object_inl_h
+
+#include "debugger/Object.h"  // for DebuggerObject
+
+#include "mozilla/Assertions.h"  // for AssertionConditionType, MOZ_ASSERT
+
+#include "NamespaceImports.h"  // for Value
+
+#include "debugger/Debugger.h"  // for Debugger
+#include "js/Wrapper.h"         // for CheckedUnwrapStatic
+#include "vm/JSObject.h"        // for JSObject
+#include "vm/PromiseObject.h"   // for js::PromiseObject
+
+#include "debugger/Debugger-inl.h"  // for Debugger::fromJSObject
+
+// The Debugger.Object.prototype object also has a class of
+// DebuggerObject::class_ so we differentiate instances from the prototype
+// based on the presence of an owner debugger.
+inline bool js::DebuggerObject::isInstance() const {
+  return !getReservedSlot(OWNER_SLOT).isUndefined();
+}
+
+inline js::Debugger* js::DebuggerObject::owner() const {
+  MOZ_ASSERT(isInstance());
+  JSObject* dbgobj = &getReservedSlot(OWNER_SLOT).toObject();
+  return Debugger::fromJSObject(dbgobj);
+}
+
+inline js::PromiseObject* js::DebuggerObject::promise() const {
+  MOZ_ASSERT(isPromise());
+
+  JSObject* referent = this->referent();
+  if (IsCrossCompartmentWrapper(referent)) {
+    // We know we have a Promise here, so CheckedUnwrapStatic is fine.
+    referent = CheckedUnwrapStatic(referent);
+    MOZ_ASSERT(referent);
+  }
+
+  return &referent->as<PromiseObject>();
+}
+
+#endif /* debugger_Object_inl_h */