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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameInstanceVisitor.java @ 16529:f6ac86d3334e

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Change API for stack walking to a visitor: TruffleRuntime#iterateFrames replaces TruffleRuntime#getStackTrace
author Christian Wimmer <christian.wimmer@oracle.com>
date Tue, 15 Jul 2014 16:34:53 -0700
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16510:b0ea5c266655 16529:f6ac86d3334e
1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package com.oracle.truffle.api.frame;
26
27 import com.oracle.truffle.api.*;
28
29 /**
30 * Callback interface for {@link TruffleRuntime#iterateFrames}. Implementations of
31 * {@link #visitFrame} return null to indicate that frame iteration should continue and the next
32 * caller frame should be visited; and return any non-null value to indicate that frame iteration
33 * should stop.
34 */
35 public interface FrameInstanceVisitor<T> {
36
37 T visitFrame(FrameInstance frameInstance);
38 }