--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.replacements.test/src/org/graalvm/compiler/replacements/test/ClassCastBytecodeExceptionTest.java 2016-12-09 00:56:44.134479738 -0800 @@ -0,0 +1,140 @@ +/* + * Copyright (c) 2016, 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 org.graalvm.compiler.replacements.test; + +import java.util.ArrayList; +import java.util.Collection; + +import org.junit.Assert; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.junit.runners.Parameterized; +import org.junit.runners.Parameterized.Parameter; +import org.junit.runners.Parameterized.Parameters; + +import org.graalvm.compiler.api.directives.GraalDirectives; +import org.graalvm.compiler.core.common.type.Stamp; +import org.graalvm.compiler.core.common.type.StampFactory; +import org.graalvm.compiler.core.common.type.TypeReference; +import org.graalvm.compiler.nodes.ConstantNode; +import org.graalvm.compiler.nodes.ValueNode; +import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext; +import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin; +import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins; + +import jdk.vm.ci.meta.Constant; +import jdk.vm.ci.meta.ResolvedJavaMethod; +import jdk.vm.ci.meta.ResolvedJavaType; + +@RunWith(Parameterized.class) +public class ClassCastBytecodeExceptionTest extends BytecodeExceptionTest { + + private static class Exceptions { + + public static void throwClassCast(Object obj, Class cls) { + /* + * We don't use cls.cast(obj) here because that gives a different exception message than + * the checkcast bytecode. + */ + if (cls == Double.class) { + Double cast = (Double) obj; + GraalDirectives.blackhole(cast); + } else if (cls == byte[].class) { + byte[] cast = (byte[]) obj; + GraalDirectives.blackhole(cast); + } else if (cls == String[].class) { + String[] cast = (String[]) obj; + GraalDirectives.blackhole(cast); + } else if (cls == Object[][].class) { + Object[][] cast = (Object[][]) obj; + GraalDirectives.blackhole(cast); + } else { + Assert.fail("unexpected class argument"); + } + } + } + + @Override + protected void registerPlugin(InvocationPlugins plugins) { + plugins.register(new InvocationPlugin() { + @Override + public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode obj, ValueNode classNode) { + ResolvedJavaType type = b.getConstantReflection().asJavaType(classNode.asConstant()); + Constant hub = b.getConstantReflection().asObjectHub(type); + Stamp hubStamp = b.getStampProvider().createHubStamp(StampFactory.object(TypeReference.createExactTrusted(type))); + ConstantNode hubConst = b.add(ConstantNode.forConstant(hubStamp, hub, b.getMetaAccess())); + return throwBytecodeException(b, ClassCastException.class, obj, hubConst); + } + }, Exceptions.class, "throwClassCast", Object.class, Class.class); + } + + @Parameter(0) public Object object; + @Parameter(1) public Class cls; + + @Parameters(name = "{1}") + public static Collection data() { + Object[] objects = {"string", 42, new int[0], new Object[0], new double[0][]}; + + ArrayList ret = new ArrayList<>(objects.length); + for (Object o : objects) { + ret.add(new Object[]{o, o.getClass()}); + } + return ret; + } + + public static void castToDouble(Object obj) { + Exceptions.throwClassCast(obj, Double.class); + } + + @Test + public void testCastToDouble() { + test("castToDouble", object); + } + + public static void castToByteArray(Object obj) { + Exceptions.throwClassCast(obj, byte[].class); + } + + @Test + public void testCastToByteArray() { + test("castToByteArray", object); + } + + public static void castToStringArray(Object obj) { + Exceptions.throwClassCast(obj, String[].class); + } + + @Test + public void testCastToStringArray() { + test("castToStringArray", object); + } + + public static void castToArrayArray(Object obj) { + Exceptions.throwClassCast(obj, Object[][].class); + } + + @Test + public void testCastToArrayArray() { + test("castToArrayArray", object); + } +}