Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/InstrumentListener.java @ 20131:4b12d5355811
Truffle: do not use iterators for visitors.
author | Christian Humer <christian.humer@gmail.com> |
---|---|
date | Thu, 02 Apr 2015 01:27:27 +0200 |
parents | a5b09092003a |
children | 37912559d662 |
line wrap: on
line source
/* * 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; /** * A listener of Truffle execution events that can collect information on behalf of an external * tool. Contextual information about the source of the event, if not stored in the implementation * of the listener, can be obtained via access to the {@link Probe} that generates the event. */ public interface InstrumentListener { /** * Receive notification that an AST node's execute method is about to be called. */ void enter(Probe probe); /** * Receive notification that an AST Node's {@code void}-valued execute method has just returned. */ void returnVoid(Probe probe); /** * Receive notification that an AST Node's execute method has just returned a value (boxed if * primitive). */ void returnValue(Probe probe, Object result); /** * Receive notification that an AST Node's execute method has just thrown an exception. */ void returnExceptional(Probe probe, Exception exception); }