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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/ASTPrinter.java @ 13563:fb846424299f

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Truffle/Ruby: extend Instrumentation framework with language-agnostic interfaces for access to AST printing utilities and a Ruby implementation
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 07 Jan 2014 18:09:42 -0800
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13562:58ca96949f2e 13563:fb846424299f
1 /*
2 * Copyright (c) 2013, 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;
26
27 import java.io.*;
28
29 import com.oracle.truffle.api.nodes.*;
30
31 /**
32 * Language-agnostic access to AST-based debugging support.
33 * <p>
34 * <strong>WARNING:</strong> this interface is under development and will change substantially.
35 */
36 public interface ASTPrinter {
37
38 /**
39 * Print a textual AST display, one line per node, with nesting.
40 *
41 * @param p
42 * @param node the root node of the display.
43 * @param maxDepth the maximum number of levels to print below the root
44 * @param markNode a node to mark with a textual arrow prefix, if present.
45 */
46 void printTree(PrintWriter p, Node node, int maxDepth, Node markNode);
47
48 }