Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/StandardTag.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> |
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date | Mon, 12 May 2014 20:17:25 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/StandardTag.java Mon May 12 20:17:25 2014 -0700 @@ -0,0 +1,77 @@ +/* + * 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; + +/** + * A somewhat language-agnostic set of phylum categories, suitable for conventional imperative + * languages, and is being developed incrementally. + * <p> + * The need for alternative sets of tags is likely to arise, perhaps for other families of languages + * (for example for mostly expression-oriented languages) or even for specific languages. + * <p> + * <strong>Disclaimer:</strong> experimental interface under development. + * + * @see Probe + * @see Wrapper + */ +public enum StandardTag implements PhylumTag { + + /** + * Marker for a variable assignment. + */ + ASSIGNMENT("assignment", "a variable assignment"), + + /** + * Marker for a call site. + */ + CALL("call", "a method/procedure call site"), + + /** + * Marker for a location where a guest language exception is about to be thrown. + */ + THROW("throw", "creator of an exception"), + + /** + * Marker for a location where ordinary "stepping" should halt. + */ + STATEMENT("statement", "basic unit of the language, suitable for \"stepping\" in a debugger"); + + private final String name; + private final String description; + + private StandardTag(String name, String description) { + this.name = name; + this.description = description; + } + + public String getName() { + return name; + } + + public String getDescription() { + return description; + } + +}