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annotate truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/AccessorTest.java @ 22012:09531c471176

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Making sure the accessor can really find the TruffleLanguage instance by its class
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Sat, 25 Jul 2015 10:25:36 +0200
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children 78c3d3d8d86e
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22012
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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1 /*
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2 * Copyright (c) 2015, 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
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6 * under the terms of the GNU General Public License version 2 only, as
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
09531c471176 Making sure the accessor can really find the TruffleLanguage instance by its class
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.api.test.vm;
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24
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25 import com.oracle.truffle.api.impl.Accessor;
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26 import com.oracle.truffle.api.test.vm.ImplicitExplicitExportTest.ExportImportLanguage1;
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27 import static com.oracle.truffle.api.test.vm.ImplicitExplicitExportTest.L1;
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28 import com.oracle.truffle.api.vm.TruffleVM;
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29 import java.lang.reflect.Field;
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30 import java.lang.reflect.InvocationTargetException;
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31 import java.lang.reflect.Method;
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32 import static org.junit.Assert.*;
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33 import org.junit.BeforeClass;
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34 import org.junit.Test;
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35
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36 public class AccessorTest {
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37 public static Accessor API;
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38
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39 @BeforeClass
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40 public static void initAccessors() throws Exception {
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41 Field f = Accessor.class.getDeclaredField("API");
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42 f.setAccessible(true);
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43 API = (Accessor) f.get(null);
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44 }
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45
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46 @Test
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47 public void canGetAccessToOwnLanguageInstance() throws Exception {
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48 TruffleVM vm = TruffleVM.newVM().build();
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49 TruffleVM.Language language = vm.getLanguages().get(L1);
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50 assertNotNull("L1 language is defined", language);
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51
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52 Object ret = vm.eval(L1, "return nothing");
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53 assertNull("nothing is returned", ret);
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54
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55 Object afterInitialization = findLanguageByClass(vm);
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56 assertNotNull("Language found", afterInitialization);
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57 assertTrue("Right instance", afterInitialization instanceof ExportImportLanguage1);
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58 }
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59
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60 Object findLanguageByClass(TruffleVM vm) throws IllegalAccessException, NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException {
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61 Method find = Accessor.class.getDeclaredMethod("findLanguage", TruffleVM.class, Class.class);
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62 find.setAccessible(true);
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63 Object language1 = find.invoke(API, vm, ExportImportLanguage1.class);
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64 return language1;
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65 }
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66 }