From f4fc98e4427b89d1046839346c75124ddbdc82d6 Mon Sep 17 00:00:00 2001
From: "benjamin@smedbergs.us" <none@none>
Date: Tue, 15 Jan 2008 07:57:43 -0800
Subject: [PATCH] Bug 411327 - nsIXPCNativeCallContext should not inherit from
 nsISupports, r=mrbkap, a=schrep

---
 .../public/nsAXPCNativeCallContext.h          | 89 +++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 js/src/xpconnect/public/nsAXPCNativeCallContext.h

diff --git a/js/src/xpconnect/public/nsAXPCNativeCallContext.h b/js/src/xpconnect/public/nsAXPCNativeCallContext.h
new file mode 100644
index 00000000000..527909707cd
--- /dev/null
+++ b/js/src/xpconnect/public/nsAXPCNativeCallContext.h
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   John Bandhauer <jband@netscape.com> (original author)
+ *   Nate Nielsen <nielsen@memberwebs.com> 
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsAXPCNativeCallContext_h__
+#define nsAXPCNativeCallContext_h__
+
+class nsIXPConnectWrappedNative;
+
+/**
+* A native call context is allocated on the stack when XPConnect calls a
+* native method. Holding a pointer to this object beyond the currently
+* executing stack frame is not permitted.
+*/
+class nsAXPCNativeCallContext
+{
+public:
+    NS_IMETHOD GetCallee(nsISupports **aResult) = 0;
+    NS_IMETHOD GetCalleeMethodIndex(PRUint16 *aResult) = 0;
+    NS_IMETHOD GetCalleeWrapper(nsIXPConnectWrappedNative **aResult) = 0;
+    NS_IMETHOD GetJSContext(JSContext **aResult) = 0;
+    NS_IMETHOD GetArgc(PRUint32 *aResult) = 0;
+    NS_IMETHOD GetArgvPtr(jsval **aResult) = 0;
+
+    /**
+     * This may be NULL if the JS caller is ignoring the result of the call.
+     */
+    NS_IMETHOD GetRetValPtr(jsval **aResult) = 0;
+
+    /**
+    * Set this if JS_SetPendingException has been called. Return NS_OK or
+    * else this will be ignored and the native method's nsresult will be
+    * converted into an exception and thrown into JS as is the normal case.
+    */
+    NS_IMETHOD GetExceptionWasThrown(PRBool *aResult) = 0;
+    NS_IMETHOD SetExceptionWasThrown(PRBool aValue) = 0;
+
+    /**
+     * Set this to indicate that the callee has directly set the return value
+     * (using RetValPtr and the JSAPI). If set then xpconnect will not attempt
+     * to overwrite it with the converted retval from the C++ callee.
+     */
+    NS_IMETHOD GetReturnValueWasSet(PRBool *aResult) = 0;
+    NS_IMETHOD SetReturnValueWasSet(PRBool aValue) = 0;
+
+    // Methods added since mozilla 0.6....
+
+    NS_IMETHOD GetCalleeInterface(nsIInterfaceInfo **aResult) = 0;
+    NS_IMETHOD GetCalleeClassInfo(nsIClassInfo **aResult) = 0;
+};
+
+#endif