--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.tools.debug.shell/src/com/oracle/truffle/tools/debug/shell/client/REPLFrame.java	Tue May 26 16:38:13 2015 -0700
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.tools.debug.shell.client;
+
+/**
+ * Information about a stack frame in the current {@link REPLClientContext}.
+ */
+interface REPLFrame {
+
+    /**
+     * Index of the frame.
+     */
+    int index();
+
+    /**
+     * File path; null if unknown.
+     */
+    String locationFilePath();
+
+    /**
+     * Line number of frame location; null if unknown.
+     */
+    Integer locationLineNumber();
+
+    /**
+     * Short description of the code location.
+     */
+    String locationDescription();
+
+    /**
+     * Name of the method body containing the location.
+     */
+    String name();
+
+    /**
+     * The line of text at the code location.
+     */
+    String sourceLineText();
+
+}