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Truffle is a multi-language framework for executing dynamic languages
that achieves high performance when combined with Graal.
/*
* 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
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*/
package com.oracle.truffle.api.instrument;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.Node;
/**
* An Instrumentation-managed {@link Node} that synchronously propagates notification of AST
* Execution Events through the {@linkplain Instrumenter Instrumentation Framework} .
*
* @since 0.8 or earlier
*/
@SuppressWarnings("deprecation")
@Deprecated
public abstract class EventHandlerNode extends Node implements InstrumentationNode {
/** @since 0.8 or earlier */
protected EventHandlerNode() {
}
/**
* An AST node's execute method is about to be called.
*
* @since 0.8 or earlier
*/
public abstract void enter(Node node, VirtualFrame frame);
/**
* An AST Node's {@code void}-valued execute method has just returned.
*
* @since 0.8 or earlier
*/
public abstract void returnVoid(Node node, VirtualFrame frame);
/**
* An AST Node's execute method has just returned a value (boxed if primitive).
*
* @since 0.8 or earlier
*/
public abstract void returnValue(Node node, VirtualFrame frame, Object result);
/**
* An AST Node's execute method has just thrown an exception.
*
* @since 0.8 or earlier
*/
public abstract void returnExceptional(Node node, VirtualFrame frame, Throwable exception);
/**
* Gets the {@link Probe} that manages this chain of event handling.
*
* @since 0.8 or earlier
*/
public abstract Probe getProbe();
}
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