1 files changed, 51 insertions, 0 deletions
diff --git a/js/public/shadow/Function.h b/js/public/shadow/Function.h
new file mode 100644
index 0000000000..a2c4dcec67
--- /dev/null
+++ b/js/public/shadow/Function.h
@@ -0,0 +1,51 @@
+/* -*- 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/. */
+
+/* Shadow definition of |JSFunction| innards.  Do not use this directly! */
+
+#ifndef js_shadow_Function_h
+#define js_shadow_Function_h
+
+#include <stdint.h>  // uint16_t
+
+#include "jstypes.h"  // JS_PUBLIC_API
+
+#include "js/CallArgs.h"       // JSNative
+#include "js/shadow/Object.h"  // JS::shadow::Object
+#include "js/Value.h"          // JS::Value
+
+class JS_PUBLIC_API JSFunction;
+class JSJitInfo;
+
+namespace JS {
+
+namespace shadow {
+
+struct Function : shadow::Object {
+  enum {
+    FlagsAndArgCountSlot,
+    NativeFuncOrInterpretedEnvSlot,
+    NativeJitInfoOrInterpretedScriptSlot,
+    AtomSlot
+  };
+  uint32_t flagsAndArgCount() const {
+    return fixedSlots()[FlagsAndArgCountSlot].toPrivateUint32();
+  }
+
+  void* jitInfoOrScript() const {
+    return fixedSlots()[NativeJitInfoOrInterpretedScriptSlot].toPrivate();
+  }
+
+  void setJitInfoOrScript(void* ptr) {
+    fixedSlots()[NativeJitInfoOrInterpretedScriptSlot] = JS::PrivateValue(ptr);
+  }
+};
+
+}  // namespace shadow
+
+}  // namespace JS
+
+#endif  // js_shadow_Function_h