Mercurial > hg > truffle
view truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/AccessorTest.java @ 22171:41c5f430ce37
Using buildNew as that more directly indicates the use of Builder pattern
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Mon, 21 Sep 2015 10:44:18 +0200 |
parents | 796f0fef110e |
children | dcb70d90c11d |
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/* * Copyright (c) 2015, 2015, 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. * * 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.test.vm; import com.oracle.truffle.api.TruffleLanguage; import com.oracle.truffle.api.impl.Accessor; import com.oracle.truffle.api.source.Source; import com.oracle.truffle.api.test.vm.ImplicitExplicitExportTest.ExportImportLanguage1; import static com.oracle.truffle.api.test.vm.ImplicitExplicitExportTest.L1; import com.oracle.truffle.api.vm.PolyglotEngine; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.util.concurrent.Executors; import static org.junit.Assert.*; import org.junit.BeforeClass; import org.junit.Test; public class AccessorTest { public static Accessor API; @BeforeClass public static void initAccessors() throws Exception { Field f = Accessor.class.getDeclaredField("API"); f.setAccessible(true); API = (Accessor) f.get(null); } @Test public void canGetAccessToOwnLanguageInstance() throws Exception { PolyglotEngine vm = PolyglotEngine.buildNew().executor(Executors.newSingleThreadExecutor()).build(); PolyglotEngine.Language language = vm.getLanguages().get(L1); assertNotNull("L1 language is defined", language); Source s = Source.fromText("return nothing", "nothing").withMimeType(L1); Object ret = vm.eval(s).get(); assertNull("nothing is returned", ret); Object afterInitialization = findLanguageByClass(vm); assertNotNull("Language found", afterInitialization); assertTrue("Right instance: " + afterInitialization, afterInitialization instanceof ExportImportLanguage1); } Object findLanguageByClass(PolyglotEngine vm) throws IllegalAccessException, NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException, NoSuchFieldException { Method find = Accessor.class.getDeclaredMethod("findLanguage", Object.class, Class.class); find.setAccessible(true); TruffleLanguage.Env env = (TruffleLanguage.Env) find.invoke(API, vm, ExportImportLanguage1.class); Field f = env.getClass().getDeclaredField("langCtx"); f.setAccessible(true); Object langCtx = f.get(env); f = langCtx.getClass().getDeclaredField("lang"); f.setAccessible(true); return f.get(langCtx); } }