Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/SyntaxTag.java @ 21648:610d76a131cd
Merge with 4c146c9367b639ca173f0b0381804b4f50aca822
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Sun, 31 May 2015 17:23:14 -0700 |
parents | 27fe86a6fb49 |
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/* * Copyright (c) 2014, 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.api.instrument; /** * Program element "tags", presumed to be singletons (best implemented as enums) that define * user-visible behavior for debugging and other simple tools. These categories should correspond to * program structures, for example "statement" and "assignment", that are meaningful * ("human-sensible") to guest language programmers. * <p> * An untagged Truffle node should be understood as an artifact of the guest language implementation * and should not be visible to guest language programmers. Nodes may also have more than one tag, * for example a variable assignment that is also a statement. Finally, the assignment of tags to * nodes could depending on the use-case of whatever tool is using them. * * @see Probe * @see StandardSyntaxTag */ public interface SyntaxTag { /** * Human-friendly name of guest language program elements belonging to the category, e.g. * "statement". */ String name(); /** * Criteria and example uses for the tag. */ String getDescription(); }