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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/SourceCallback.java @ 16335:524f5cf6cb95

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Truffle/Source: add a singleton null instance of SourceCallback
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Mon, 30 Jun 2014 19:34:05 -0700
parents 915ebb306fcc
children c88ab4f1f04a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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15779
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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1 /*
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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6 * under the terms of the GNU General Public License version 2 only, as
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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7 * published by the Free Software Foundation. Oracle designates this
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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8 * particular file as subject to the "Classpath" exception as provided
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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9 * by Oracle in the LICENSE file that accompanied this code.
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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10 *
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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14 * version 2 for more details (a copy is included in the LICENSE file that
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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15 * accompanied this code).
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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16 *
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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17 * You should have received a copy of the GNU General Public License version
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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18 * 2 along with this work; if not, write to the Free Software Foundation,
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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22 * or visit www.oracle.com if you need additional information or have any
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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23 * questions.
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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24 */
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25 package com.oracle.truffle.api.instrument;
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26
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27 import com.oracle.truffle.api.source.*;
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28
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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29 /**
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30 * Instrumentation callback for guest language source-related events.
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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31 */
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32 public interface SourceCallback {
8c34e2cc4add Truffle/Instrumentation: significant reorganization of the instrumentation framework's implementation and connection to the runtime ExecutionContext, with some new features, including a Tag-based "trap" mechanisms.
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33
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34 public void startLoading(Source source);
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35
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36 public void endLoading(Source source);
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37
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38 /**
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39 * Inert (singleton) implementation of {@link SourceCallback}.
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40 */
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41 SourceCallback NULL = new SourceCallback() {
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42
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43 public void startLoading(Source source) {
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44 }
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45
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46 public void endLoading(Source source) {
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47 }
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48
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49 };
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50 }