Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/ProbeListener.java @ 21468:99942eac9c6d
Introducing TruffleVM - a central place to invoke code in any registered TruffleLanguage.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Fri, 22 May 2015 13:41:10 +0200 |
parents | 867058575979 |
children |
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/* * 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.api.instrument; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.api.source.*; /** * An observer of events related to {@link Probe}s: creating and tagging. */ public interface ProbeListener { /** * Notifies that all registered {@link ASTProber}s are about to be applied to a newly * constructed AST. * * @param source source code from which the AST was constructed */ void startASTProbing(Source source); /** * Notifies that a {@link Probe} has been newly attached to an AST via {@link Node#probe()}. * <p> * There can be no more than one {@link Probe} at a node; this notification will only be * delivered the first time {@linkplain Node#probe() probe()} is called at a particular AST * node. There will also be no notification when the AST to which the Probe is attached is * cloned. */ void newProbeInserted(Probe probe); /** * Notifies that a {@link SyntaxTag} has been newly added to the set of tags associated with a * {@link Probe} via {@link Probe#tagAs(SyntaxTag, Object)}. * <p> * The {@linkplain SyntaxTag tags} at a {@link Probe} are a <em>set</em>; this notification will * only be delivered the first time a particular {@linkplain SyntaxTag tag} is added at a * {@link Probe}. * <p> * An optional value supplied with {@linkplain Probe#tagAs(SyntaxTag, Object) tagAs(SyntaxTag, * Object)} is reported to all listeners, but not stored. As a consequence, the optional value * will have no effect at all if the tag had already been added. * * @param probe where a tag has been added * @param tag the tag that has been newly added (subsequent additions of the tag are * unreported). * @param tagValue an optional value associated with the tag for the purposes of reporting. */ void probeTaggedAs(Probe probe, SyntaxTag tag, Object tagValue); /** * Notifies that the application of all registered {@link ASTProber}s to a newly constructed AST * has completed. * * @param source source code from which the AST was constructed */ void endASTProbing(Source source); }