1 /* 2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.core.test; 26 27 import org.junit.Test; 28 29 import jdk.vm.ci.meta.Assumptions.ConcreteSubtype; 30 31 /** 32 * Ensure that abstract classes with a single implementor are properly optimized and that loading a 33 * subclass below the leaf type triggers invalidation. 34 */ 35 public class ConcreteSubtypeTest extends GraalCompilerAssumptionsTest { 36 abstract static class AbstractBase { 37 abstract void check(); 38 } 39 40 static class Subclass extends AbstractBase { 41 @Override 42 public void check() { 43 throw new InternalError(); 44 } 45 } 46 47 static class SubSubclass extends Subclass { 48 @Override 49 public void check() { 50 } 51 } 52 53 public void callAbstractType(AbstractBase object) { 54 object.check(); 55 } 56 57 /** 58 * Test that {@link #callAbstractType} gets compiled into an empty method with a 59 * {@link ConcreteSubtype} assumption on {@link AbstractBase} and {@link Subclass}. Then ensures 60 * that loading and initialization of {@link SubSubclass} causes the compiled method to be 61 * invalidated. 62 */ 63 @Test 64 public void testLeafAbstractType() { 65 testAssumptionInvalidate("callAbstractType", new ConcreteSubtype(resolveAndInitialize(AbstractBase.class), resolveAndInitialize(Subclass.class)), "SubSubclass"); 66 } 67 }