Mercurial > hg > graal-compiler
diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/ASTPrinter.java @ 13563:fb846424299f
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> |
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date | Tue, 07 Jan 2014 18:09:42 -0800 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/ASTPrinter.java Tue Jan 07 18:09:42 2014 -0800 @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2013, 2014, 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.api; + +import java.io.*; + +import com.oracle.truffle.api.nodes.*; + +/** + * Language-agnostic access to AST-based debugging support. + * <p> + * <strong>WARNING:</strong> this interface is under development and will change substantially. + */ +public interface ASTPrinter { + + /** + * Print a textual AST display, one line per node, with nesting. + * + * @param p + * @param node the root node of the display. + * @param maxDepth the maximum number of levels to print below the root + * @param markNode a node to mark with a textual arrow prefix, if present. + */ + void printTree(PrintWriter p, Node node, int maxDepth, Node markNode); + +}