1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/jit/JitFrames-inl.h b/js/src/jit/JitFrames-inl.h
new file mode 100644
index 0000000000..ddbc76e103
--- /dev/null
+++ b/js/src/jit/JitFrames-inl.h
@@ -0,0 +1,32 @@
+/* -*- 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 jit_JitFrames_inl_h
+#define jit_JitFrames_inl_h
+
+#include "jit/JitFrames.h"
+#include "vm/JSContext.h"
+
+#include "jit/JSJitFrameIter-inl.h"
+
+namespace js {
+namespace jit {
+
+inline BaselineFrame* GetTopBaselineFrame(JSContext* cx) {
+  JSJitFrameIter frame(cx->activation()->asJit());
+  MOZ_ASSERT(frame.type() == FrameType::Exit);
+  ++frame;
+  if (frame.isBaselineStub()) {
+    ++frame;
+  }
+  MOZ_ASSERT(frame.isBaselineJS());
+  return frame.baselineFrame();
+}
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_JitFrames_inl_h */