Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/ToolNode.java @ 20106:2e3cc2a27711
Truffle/Instrumentation: a new flavor of Instrument that lazily provides an AST fragment to be attached/adopted directly into a running AST, and to which execution event notifications will be routed. Important use cases so far include conditional breakpoints (with optimizeable conditions) and Ruby set_trace_func.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 31 Mar 2015 19:01:07 -0700 |
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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.frame.*; import com.oracle.truffle.api.nodes.*; /** * Root of a tool-provided AST fragment that can be attached directly into an executing AST via * {@link Instrument#create(ToolNodeInstrumentListener, String)}. * <p> * <strong>Note:</strong> Instances of this class will in some situations be cloned by the * instrumentation platform for attachment at equivalent locations in cloned parent ASTs. */ public abstract class ToolNode extends Node implements InstrumentationNode.TruffleEvents, InstrumentationNode { public void enter(Node node, VirtualFrame vFrame) { } public void returnVoid(Node node, VirtualFrame vFrame) { } public void returnValue(Node node, VirtualFrame vFrame, Object result) { } public void returnExceptional(Node node, VirtualFrame vFrame, Exception exception) { } public String instrumentationInfo() { return null; } }