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annotate truffle/com.oracle.truffle.api.interop.java.test/src/com/oracle/truffle/api/interop/java/test/InstrumentationTestMode.java @ 22241:14e6dfb1ef05

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Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation" - Caused by lack of a "vm" known to the Accessor during most testing, making the Instrumenter unavailable, which is now required to create a CallTarget - Modified the Instrumenter/Accessor with a static field that can be reflectively "poked" with a vm value for testing - Create a pair of methods to globally enable/disable testing mode to modify that static field and restore it when tests complete.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 22 Sep 2015 20:31:19 -0700
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children 0d36601f233e
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22241
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1 /*
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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9 * by Oracle in the LICENSE file that accompanied this code.
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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14 * version 2 for more details (a copy is included in the LICENSE file that
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
14e6dfb1ef05 Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api.interop.java.test;
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27 import java.lang.reflect.Field;
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29 import com.oracle.truffle.api.instrument.Instrumenter;
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30 import com.oracle.truffle.api.vm.TruffleVM;
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32 public class InstrumentationTestMode {
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34 public static void set(boolean enable) throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
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35 final TruffleVM vm = TruffleVM.newVM().build();
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36 final Field instrumenterField = vm.getClass().getDeclaredField("instrumenter");
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37 instrumenterField.setAccessible(true);
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38 final Object instrumenter = instrumenterField.get(vm);
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39 final java.lang.reflect.Field testVMField = Instrumenter.class.getDeclaredField("testVM");
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40 testVMField.setAccessible(true);
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41 if (enable) {
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42 testVMField.set(instrumenter, vm);
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43 } else {
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44 testVMField.set(instrumenter, null);
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45 }
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46 }
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47
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48 }