Add m-esr52 at 52.6.0

1 files changed, 25 insertions, 0 deletions

diff --git a/dom/base/nsDOMJSUtils.h b/dom/base/nsDOMJSUtils.h
new file mode 100644
index 0000000000..afdba7113c
--- /dev/null
+++ b/dom/base/nsDOMJSUtils.h
@@ -0,0 +1,25 @@
+/* -*- 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 nsDOMJSUtils_h__
+#define nsDOMJSUtils_h__
+
+#include "nsIScriptContext.h"
+#include "jsapi.h"
+
+class nsIJSArgArray;
+
+// A factory function for turning a JS::Value argv into an nsIArray
+// but also supports an effecient way of extracting the original argv.
+// The resulting object will take a copy of the array, and ensure each
+// element is rooted.
+// Optionally, aArgv may be nullptr, in which case the array is allocated and
+// rooted, but all items remain nullptr.  This presumably means the caller
+// will then QI us for nsIJSArgArray, and set our array elements.
+nsresult NS_CreateJSArgv(JSContext *aContext, uint32_t aArgc,
+                         const JS::Value* aArgv, nsIJSArgArray **aArray);
+
+#endif // nsDOMJSUtils_h__