Mercurial > hg > truffle
view truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/vm/EventConsumer.java @ 22003:5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Sat, 18 Jul 2015 18:03:36 +0200 |
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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.vm; import com.oracle.truffle.api.TruffleLanguage; import com.oracle.truffle.api.debug.ExecutionEvent; import com.oracle.truffle.api.debug.SuspendedEvent; /** * {@link TruffleVM} generates various events and delivers them to * {@link TruffleVM.Builder#onEvent(com.oracle.truffle.api.vm.EventConsumer) registered} handlers. * Each handler is registered for a particular type of event. Examples of events include * {@link ExecutionEvent} or {@link SuspendedEvent} useful when debugging {@link TruffleLanguage * Truffle language}s. * * @param <Event> type of event to observe and handle */ public abstract class EventConsumer<Event> { final Class<Event> type; /** * Creates new handler for specified event type. * * @param eventType type of events to handle */ public EventConsumer(Class<Event> eventType) { this.type = eventType; } /** * Called by the {@link TruffleVM} when event of requested type appears. * * @param event the instance of an event of the request type */ protected abstract void on(Event event); }