view graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/PhylumTagged.java @ 15605:bb9473723904

Truffle/Instrumentation: - Merge instrumentation support into the general execution context; remove separate Instrumentation interface and implementation - Generalize the ?tagging? mechanism for extensibility: the enum PhylumTag is now an interface, and the standard tags moved to the new enum StandardTag - A new ?trap? mechanism interrupts program execution at any probed node holding a specified PhylumTag; this replaces some other special-purpose code. - Refine several interface by factoring out callback methods and simplifying collaboration among key implementation classes.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Mon, 12 May 2014 20:17:25 -0700
parents 0c6d8a08e31b
children
line wrap: on
line source

/*
 * Copyright (c) 2014, 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;

/**
 * Information about a guest language program element in a Truffle that can be marked as belonging
 * to 0 or more {@linkplain PhylumTag tags}.
 * <p>
 * <strong>Disclaimer:</strong> experimental interface under development.
 *
 * @see Probe
 * @see Wrapper
 */
public interface PhylumTagged {

    /**
     * Is this node tagged as belonging to a particular category of language constructs?
     */
    boolean isTaggedAs(PhylumTag tag);

    /**
     * In which categories has this node been tagged (<em>empty set</em> if none).
     */
    Iterable<PhylumTag> getPhylumTags();

}