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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#include "nsIURL.idl"
+
+interface nsIFile;
+
+/**
+ * nsIFileURL provides access to the underlying nsIFile object corresponding to
+ * an URL. The URL scheme need not be file:, since other local protocols may
+ * map URLs to files (e.g., resource:).
+ */
+[scriptable, uuid(e91ac988-27c2-448b-b1a1-3822e1ef1987)]
+interface nsIFileURL : nsIURL
+{
+ /**
+ * Get/Set nsIFile corresponding to this URL.
+ *
+ * - Getter returns a reference to an immutable object. Callers must clone
+ * before attempting to modify the returned nsIFile object. NOTE: this
+ * constraint might not be enforced at runtime, so beware!!
+ *
+ * - Setter clones the nsIFile object (allowing the caller to safely modify
+ * the nsIFile object after setting it on this interface).
+ */
+ attribute nsIFile file;
+};